diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.axf b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.axf
index 34e0866..89908cc 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.axf and b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.axf differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.build_log.htm b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.build_log.htm
index 43f4a25..5330073 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.build_log.htm
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.build_log.htm
@@ -22,13 +22,14 @@ Dialog DLL:      TARMSTM.DLL V1.66.0.0
  
 <h2>Project:</h2>
 C:\Users\momof\Documents\projet_voilier\keil_project\MDK-ARM\Project.uvprojx
-Project File Date:  11/09/2020
+Project File Date:  11/11/2020
 
 <h2>Output:</h2>
 *** Using Compiler 'V5.06 update 6 (build 750)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
 Build target 'Simulateur'
+compiling stm32f1xx_ll_usart.c...
 linking...
-Program Size: Code=2412 RO-data=268 RW-data=44 ZI-data=1028  
+Program Size: Code=820 RO-data=268 RW-data=32 ZI-data=1024  
 "NUCLEO-F103RB\NUCLEO-F103RB.axf" - 0 Error(s), 0 Warning(s).
 
 <h2>Software Packages used:</h2>
@@ -52,7 +53,7 @@ Package Vendor: Keil
 <h2>Collection of Component Files used:</h2>
 
    * Component: ARM::CMSIS:CORE:5.3.0
-Build Time Elapsed:  00:00:00
+Build Time Elapsed:  00:00:01
 </pre>
 </body>
 </html>
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.htm b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.htm
index 2561666..2ae57b6 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.htm
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.htm
@@ -3,11 +3,11 @@
 <title>Static Call Graph - [NUCLEO-F103RB\NUCLEO-F103RB.axf]</title></head>
 <body><HR>
 <H1>Static Call Graph for image NUCLEO-F103RB\NUCLEO-F103RB.axf</H1><HR>
-<BR><P>#&#060CALLGRAPH&#062# ARM Linker, 5060750: Last Updated: Mon Nov 09 20:40:37 2020
+<BR><P>#&#060CALLGRAPH&#062# ARM Linker, 5060750: Last Updated: Wed Nov 11 16:28:11 2020
 <BR><P>
-<H3>Maximum Stack Usage =         96 bytes + Unknown(Cycles, Untraceable Function Pointers)</H3><H3>
+<H3>Maximum Stack Usage =         24 bytes + Unknown(Cycles, Untraceable Function Pointers)</H3><H3>
 Call chain for Maximum Stack Depth:</H3>
-main &rArr; accelero_init &rArr; LL_ADC_REG_Init
+main &rArr; Chrono_Background &rArr; Chrono_Stop &rArr; MyTimer_Stop
 <P>
 <H3>
 Mutually Recursive functions
@@ -90,25 +90,25 @@ Global Symbols
 <P><STRONG><a name="[37]"></a>__main</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry.o(.ARM.Collect$$$$00000000))
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(.text)
 </UL>
-<P><STRONG><a name="[52]"></a>_main_stk</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry2.o(.ARM.Collect$$$$00000001))
+<P><STRONG><a name="[47]"></a>_main_stk</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry2.o(.ARM.Collect$$$$00000001))
 
 <P><STRONG><a name="[38]"></a>_main_scatterload</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry5.o(.ARM.Collect$$$$00000004))
 <BR><BR>[Calls]<UL><LI><a href="#[39]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__scatterload
 </UL>
 
-<P><STRONG><a name="[40]"></a>__main_after_scatterload</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry5.o(.ARM.Collect$$$$00000004))
+<P><STRONG><a name="[3a]"></a>__main_after_scatterload</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry5.o(.ARM.Collect$$$$00000004))
 <BR><BR>[Called By]<UL><LI><a href="#[39]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__scatterload
 </UL>
 
-<P><STRONG><a name="[53]"></a>_main_clock</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry7b.o(.ARM.Collect$$$$00000008))
+<P><STRONG><a name="[48]"></a>_main_clock</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry7b.o(.ARM.Collect$$$$00000008))
 
-<P><STRONG><a name="[54]"></a>_main_cpp_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry8b.o(.ARM.Collect$$$$0000000A))
+<P><STRONG><a name="[49]"></a>_main_cpp_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry8b.o(.ARM.Collect$$$$0000000A))
 
-<P><STRONG><a name="[55]"></a>_main_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry9a.o(.ARM.Collect$$$$0000000B))
+<P><STRONG><a name="[4a]"></a>_main_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry9a.o(.ARM.Collect$$$$0000000B))
 
-<P><STRONG><a name="[56]"></a>__rt_final_cpp</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry10a.o(.ARM.Collect$$$$0000000D))
+<P><STRONG><a name="[4b]"></a>__rt_final_cpp</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry10a.o(.ARM.Collect$$$$0000000D))
 
-<P><STRONG><a name="[57]"></a>__rt_final_exit</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry11a.o(.ARM.Collect$$$$0000000F))
+<P><STRONG><a name="[4c]"></a>__rt_final_exit</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry11a.o(.ARM.Collect$$$$0000000F))
 
 <P><STRONG><a name="[0]"></a>Reset_Handler</STRONG> (Thumb, 8 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
@@ -297,96 +297,75 @@ Global Symbols
 <P><STRONG><a name="[a]"></a>WWDG_IRQHandler</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
-<P><STRONG><a name="[3a]"></a>__aeabi_ddiv</STRONG> (Thumb, 222 bytes, Stack size 32 bytes, ddiv.o(.text))
-<BR><BR>[Stack]<UL><LI>Max Depth = 40<LI>Call Chain = __aeabi_ddiv &rArr; _double_round
-</UL>
-<BR>[Calls]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_round
-</UL>
-<BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
-</UL>
-
-<P><STRONG><a name="[3c]"></a>__aeabi_i2d</STRONG> (Thumb, 34 bytes, Stack size 16 bytes, dflti.o(.text))
-<BR><BR>[Stack]<UL><LI>Max Depth = 56<LI>Call Chain = __aeabi_i2d &rArr; _double_epilogue &rArr; _double_round
-</UL>
-<BR>[Calls]<UL><LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
-</UL>
-<BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
-</UL>
-
-<P><STRONG><a name="[4c]"></a>__aeabi_cdrcmple</STRONG> (Thumb, 48 bytes, Stack size 0 bytes, cdrcmple.o(.text))
-<BR><BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
-</UL>
-
-<P><STRONG><a name="[58]"></a>__I$use$fp</STRONG> (Thumb, 0 bytes, Stack size 8 bytes, iusefp.o(.text), UNUSED)
-
-<P><STRONG><a name="[3b]"></a>_double_round</STRONG> (Thumb, 30 bytes, Stack size 8 bytes, depilogue.o(.text))
-<BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = _double_round
-</UL>
-<BR>[Called By]<UL><LI><a href="#[3a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_ddiv
-<LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
-</UL>
-
-<P><STRONG><a name="[3d]"></a>_double_epilogue</STRONG> (Thumb, 156 bytes, Stack size 32 bytes, depilogue.o(.text))
-<BR><BR>[Stack]<UL><LI>Max Depth = 40<LI>Call Chain = _double_epilogue &rArr; _double_round
-</UL>
-<BR>[Calls]<UL><LI><a href="#[3f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_llsr
-<LI><a href="#[3e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_llsl
-<LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_round
-</UL>
-<BR>[Called By]<UL><LI><a href="#[3c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_i2d
-</UL>
-
 <P><STRONG><a name="[39]"></a>__scatterload</STRONG> (Thumb, 28 bytes, Stack size 0 bytes, init.o(.text))
-<BR><BR>[Calls]<UL><LI><a href="#[40]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__main_after_scatterload
+<BR><BR>[Calls]<UL><LI><a href="#[3a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__main_after_scatterload
 </UL>
 <BR>[Called By]<UL><LI><a href="#[38]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_main_scatterload
 </UL>
 
-<P><STRONG><a name="[59]"></a>__scatterload_rt2</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, init.o(.text), UNUSED)
+<P><STRONG><a name="[4d]"></a>__scatterload_rt2</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, init.o(.text), UNUSED)
 
-<P><STRONG><a name="[3e]"></a>__aeabi_llsl</STRONG> (Thumb, 30 bytes, Stack size 0 bytes, llshl.o(.text))
-<BR><BR>[Called By]<UL><LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
+<P><STRONG><a name="[3b]"></a>Chrono_Background</STRONG> (Thumb, 44 bytes, Stack size 8 bytes, chrono.o(i.Chrono_Background))
+<BR><BR>[Stack]<UL><LI>Max Depth = 24<LI>Call Chain = Chrono_Background &rArr; Chrono_Stop &rArr; MyTimer_Stop
+</UL>
+<BR>[Calls]<UL><LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Stop
+<LI><a href="#[3e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Start
+<LI><a href="#[3f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Reset
+<LI><a href="#[3c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_GPIO_IsInputPinSet
+</UL>
+<BR>[Called By]<UL><LI><a href="#[35]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
 
-<P><STRONG><a name="[5a]"></a>_ll_shift_l</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, llshl.o(.text), UNUSED)
-
-<P><STRONG><a name="[3f]"></a>__aeabi_llsr</STRONG> (Thumb, 32 bytes, Stack size 0 bytes, llushr.o(.text))
-<BR><BR>[Called By]<UL><LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
+<P><STRONG><a name="[3f]"></a>Chrono_Reset</STRONG> (Thumb, 22 bytes, Stack size 8 bytes, chrono.o(i.Chrono_Reset))
+<BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = Chrono_Reset &rArr; MyTimer_Stop
+</UL>
+<BR>[Calls]<UL><LI><a href="#[40]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MyTimer_Stop
+</UL>
+<BR>[Called By]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Background
 </UL>
 
-<P><STRONG><a name="[5b]"></a>_ll_ushift_r</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, llushr.o(.text), UNUSED)
-
-<P><STRONG><a name="[41]"></a>LL_ADC_Init</STRONG> (Thumb, 120 bytes, Stack size 16 bytes, stm32f1xx_ll_adc.o(i.LL_ADC_Init))
-<BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = LL_ADC_Init
+<P><STRONG><a name="[3e]"></a>Chrono_Start</STRONG> (Thumb, 18 bytes, Stack size 8 bytes, chrono.o(i.Chrono_Start))
+<BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = Chrono_Start
 </UL>
-<BR>[Calls]<UL><LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_IsEnabled
-<LI><a href="#[42]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;assert_failed
+<BR>[Calls]<UL><LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MyTimer_Start
 </UL>
-<BR>[Called By]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_init
+<BR>[Called By]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Background
 </UL>
 
-<P><STRONG><a name="[44]"></a>LL_ADC_REG_Init</STRONG> (Thumb, 454 bytes, Stack size 16 bytes, stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init))
-<BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = LL_ADC_REG_Init
+<P><STRONG><a name="[3d]"></a>Chrono_Stop</STRONG> (Thumb, 18 bytes, Stack size 8 bytes, chrono.o(i.Chrono_Stop))
+<BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = Chrono_Stop &rArr; MyTimer_Stop
 </UL>
-<BR>[Calls]<UL><LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_IsEnabled
-<LI><a href="#[42]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;assert_failed
+<BR>[Calls]<UL><LI><a href="#[40]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MyTimer_Stop
 </UL>
-<BR>[Called By]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_init
+<BR>[Called By]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Background
 </UL>
 
-<P><STRONG><a name="[46]"></a>LL_Init1msTick</STRONG> (Thumb, 28 bytes, Stack size 0 bytes, stm32f1xx_ll_utils.o(i.LL_Init1msTick))
-<BR><BR>[Called By]<UL><LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<P><STRONG><a name="[44]"></a>LL_Init1msTick</STRONG> (Thumb, 28 bytes, Stack size 0 bytes, stm32f1xx_ll_utils.o(i.LL_Init1msTick))
+<BR><BR>[Called By]<UL><LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>
 
-<P><STRONG><a name="[47]"></a>LL_SetSystemCoreClock</STRONG> (Thumb, 6 bytes, Stack size 0 bytes, stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock))
-<BR><BR>[Called By]<UL><LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<P><STRONG><a name="[45]"></a>LL_SetSystemCoreClock</STRONG> (Thumb, 6 bytes, Stack size 0 bytes, stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock))
+<BR><BR>[Called By]<UL><LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>
 
-<P><STRONG><a name="[45]"></a>SystemClock_Config</STRONG> (Thumb, 226 bytes, Stack size 8 bytes, main.o(i.SystemClock_Config))
+<P><STRONG><a name="[41]"></a>MyTimer_Start</STRONG> (Thumb, 14 bytes, Stack size 0 bytes, mytimer.o(i.MyTimer_Start))
+<BR><BR>[Called By]<UL><LI><a href="#[3e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Start
+</UL>
+
+<P><STRONG><a name="[40]"></a>MyTimer_Stop</STRONG> (Thumb, 12 bytes, Stack size 8 bytes, mytimer.o(i.MyTimer_Stop))
+<BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = MyTimer_Stop
+</UL>
+<BR>[Calls]<UL><LI><a href="#[42]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_DisableCounter
+</UL>
+<BR>[Called By]<UL><LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Stop
+<LI><a href="#[3f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Reset
+</UL>
+
+<P><STRONG><a name="[43]"></a>SystemClock_Config</STRONG> (Thumb, 226 bytes, Stack size 8 bytes, main.o(i.SystemClock_Config))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = SystemClock_Config
 </UL>
-<BR>[Calls]<UL><LI><a href="#[47]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_SetSystemCoreClock
-<LI><a href="#[46]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_Init1msTick
+<BR>[Calls]<UL><LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_SetSystemCoreClock
+<LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_Init1msTick
 </UL>
 <BR>[Called By]<UL><LI><a href="#[35]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
@@ -397,129 +376,61 @@ Global Symbols
 <P><STRONG><a name="[23]"></a>TIM1_UP_IRQHandler</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, mytimer.o(i.TIM1_UP_IRQHandler))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = TIM1_UP_IRQHandler
 </UL>
-<BR>[Calls]<UL><LI><a href="#[48]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
+<BR>[Calls]<UL><LI><a href="#[46]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
 <P><STRONG><a name="[26]"></a>TIM2_IRQHandler</STRONG> (Thumb, 18 bytes, Stack size 8 bytes, mytimer.o(i.TIM2_IRQHandler))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = TIM2_IRQHandler
 </UL>
-<BR>[Calls]<UL><LI><a href="#[48]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
+<BR>[Calls]<UL><LI><a href="#[46]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
 <P><STRONG><a name="[27]"></a>TIM3_IRQHandler</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, mytimer.o(i.TIM3_IRQHandler))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = TIM3_IRQHandler
 </UL>
-<BR>[Calls]<UL><LI><a href="#[48]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
+<BR>[Calls]<UL><LI><a href="#[46]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
 <P><STRONG><a name="[28]"></a>TIM4_IRQHandler</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, mytimer.o(i.TIM4_IRQHandler))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = TIM4_IRQHandler
 </UL>
-<BR>[Calls]<UL><LI><a href="#[48]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
+<BR>[Calls]<UL><LI><a href="#[46]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
-<P><STRONG><a name="[5c]"></a>__scatterload_copy</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_copy), UNUSED)
+<P><STRONG><a name="[4e]"></a>__scatterload_copy</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_copy), UNUSED)
 
-<P><STRONG><a name="[5d]"></a>__scatterload_null</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_null), UNUSED)
+<P><STRONG><a name="[4f]"></a>__scatterload_null</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_null), UNUSED)
 
-<P><STRONG><a name="[5e]"></a>__scatterload_zeroinit</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_zeroinit), UNUSED)
+<P><STRONG><a name="[50]"></a>__scatterload_zeroinit</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_zeroinit), UNUSED)
 
-<P><STRONG><a name="[49]"></a>accelero_angle_bon</STRONG> (Thumb, 78 bytes, Stack size 24 bytes, accelerometer.o(i.accelero_angle_bon))
-<BR><BR>[Stack]<UL><LI>Max Depth = 80<LI>Call Chain = accelero_angle_bon &rArr; __aeabi_i2d &rArr; _double_epilogue &rArr; _double_round
+<P><STRONG><a name="[35]"></a>main</STRONG> (Thumb, 12 bytes, Stack size 0 bytes, main.o(i.main))
+<BR><BR>[Stack]<UL><LI>Max Depth = 24<LI>Call Chain = main &rArr; Chrono_Background &rArr; Chrono_Stop &rArr; MyTimer_Stop
 </UL>
-<BR>[Calls]<UL><LI><a href="#[3c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_i2d
-<LI><a href="#[3a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_ddiv
-<LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_cdrcmple
-<LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_y
-<LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_x
-</UL>
-<BR>[Called By]<UL><LI><a href="#[35]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
-</UL>
-
-<P><STRONG><a name="[4a]"></a>accelero_get_x</STRONG> (Thumb, 46 bytes, Stack size 8 bytes, accelerometer.o(i.accelero_get_x))
-<BR><BR>[Stack]<UL><LI>Max Depth = 24<LI>Call Chain = accelero_get_x &rArr; LL_ADC_REG_SetSequencerRanks
-</UL>
-<BR>[Calls]<UL><LI><a href="#[4e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_StartConversionSWStart
-<LI><a href="#[4d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_SetSequencerRanks
-<LI><a href="#[4f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_IsActiveFlag_EOS
-</UL>
-<BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
-</UL>
-
-<P><STRONG><a name="[4b]"></a>accelero_get_y</STRONG> (Thumb, 46 bytes, Stack size 8 bytes, accelerometer.o(i.accelero_get_y))
-<BR><BR>[Stack]<UL><LI>Max Depth = 24<LI>Call Chain = accelero_get_y &rArr; LL_ADC_REG_SetSequencerRanks
-</UL>
-<BR>[Calls]<UL><LI><a href="#[4e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_StartConversionSWStart
-<LI><a href="#[4d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_SetSequencerRanks
-<LI><a href="#[4f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_IsActiveFlag_EOS
-</UL>
-<BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
-</UL>
-
-<P><STRONG><a name="[50]"></a>accelero_init</STRONG> (Thumb, 170 bytes, Stack size 80 bytes, accelerometer.o(i.accelero_init))
-<BR><BR>[Stack]<UL><LI>Max Depth = 96<LI>Call Chain = accelero_init &rArr; LL_ADC_REG_Init
-</UL>
-<BR>[Calls]<UL><LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_Init
-<LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_Init
-<LI><a href="#[51]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_SetChannelSamplingTime
-</UL>
-<BR>[Called By]<UL><LI><a href="#[35]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
-</UL>
-
-<P><STRONG><a name="[42]"></a>assert_failed</STRONG> (Thumb, 4 bytes, Stack size 0 bytes, main.o(i.assert_failed))
-<BR><BR>[Called By]<UL><LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_Init
-<LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_Init
-</UL>
-
-<P><STRONG><a name="[35]"></a>main</STRONG> (Thumb, 20 bytes, Stack size 0 bytes, main.o(i.main))
-<BR><BR>[Stack]<UL><LI>Max Depth = 96<LI>Call Chain = main &rArr; accelero_init &rArr; LL_ADC_REG_Init
-</UL>
-<BR>[Calls]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_init
-<LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
-<LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<BR>[Calls]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Background
+<LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> entry9a.o(.ARM.Collect$$$$0000000B)
 </UL><P>
 <H3>
 Local Symbols
 </H3>
-<P><STRONG><a name="[4f]"></a>LL_ADC_IsActiveFlag_EOS</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, accelerometer.o(i.LL_ADC_IsActiveFlag_EOS))
-<BR><BR>[Called By]<UL><LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_y
-<LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_x
+<P><STRONG><a name="[3c]"></a>LL_GPIO_IsInputPinSet</STRONG> (Thumb, 26 bytes, Stack size 0 bytes, chrono.o(i.LL_GPIO_IsInputPinSet))
+<BR><BR>[Called By]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;Chrono_Background
 </UL>
 
-<P><STRONG><a name="[4d]"></a>LL_ADC_REG_SetSequencerRanks</STRONG> (Thumb, 56 bytes, Stack size 16 bytes, accelerometer.o(i.LL_ADC_REG_SetSequencerRanks))
-<BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = LL_ADC_REG_SetSequencerRanks
-</UL>
-<BR>[Called By]<UL><LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_y
-<LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_x
-</UL>
-
-<P><STRONG><a name="[4e]"></a>LL_ADC_REG_StartConversionSWStart</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, accelerometer.o(i.LL_ADC_REG_StartConversionSWStart))
-<BR><BR>[Called By]<UL><LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_y
-<LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_x
-</UL>
-
-<P><STRONG><a name="[51]"></a>LL_ADC_SetChannelSamplingTime</STRONG> (Thumb, 82 bytes, Stack size 16 bytes, accelerometer.o(i.LL_ADC_SetChannelSamplingTime))
-<BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = LL_ADC_SetChannelSamplingTime
-</UL>
-<BR>[Called By]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_init
-</UL>
-
-<P><STRONG><a name="[48]"></a>LL_TIM_ClearFlag_UPDATE</STRONG> (Thumb, 8 bytes, Stack size 0 bytes, mytimer.o(i.LL_TIM_ClearFlag_UPDATE))
+<P><STRONG><a name="[46]"></a>LL_TIM_ClearFlag_UPDATE</STRONG> (Thumb, 8 bytes, Stack size 0 bytes, mytimer.o(i.LL_TIM_ClearFlag_UPDATE))
 <BR><BR>[Called By]<UL><LI><a href="#[28]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM4_IRQHandler
 <LI><a href="#[27]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM3_IRQHandler
 <LI><a href="#[26]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM2_IRQHandler
 <LI><a href="#[23]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM1_UP_IRQHandler
 </UL>
 
-<P><STRONG><a name="[43]"></a>LL_ADC_IsEnabled</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled))
-<BR><BR>[Called By]<UL><LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_Init
-<LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_Init
+<P><STRONG><a name="[42]"></a>LL_TIM_DisableCounter</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, mytimer.o(i.LL_TIM_DisableCounter))
+<BR><BR>[Called By]<UL><LI><a href="#[40]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MyTimer_Stop
 </UL>
 <P>
 <H3>
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.lnp b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.lnp
index 75b411b..27991ce 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.lnp
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.lnp
@@ -1,13 +1,14 @@
 --cpu Cortex-M3
 "nucleo-f103rb\main.o"
 "nucleo-f103rb\chrono.o"
-"nucleo-f103rb\accelerometer.o"
+"nucleo-f103rb\emetteur_rf.o"
 "nucleo-f103rb\mytimer.o"
 "nucleo-f103rb\stm32f1xx_ll_rcc.o"
 "nucleo-f103rb\stm32f1xx_ll_utils.o"
 "nucleo-f103rb\stm32f1xx_ll_tim.o"
 "nucleo-f103rb\stm32f1xx_ll_gpio.o"
 "nucleo-f103rb\stm32f1xx_ll_adc.o"
+"nucleo-f103rb\stm32f1xx_ll_usart.o"
 "nucleo-f103rb\system_stm32f1xx.o"
 "nucleo-f103rb\startup_stm32f103xb.o"
 --library_type=microlib --strict --scatter "NUCLEO-F103RB\NUCLEO-F103RB.sct"
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.map b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.map
index 2b89339..dd699c2 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.map
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.map
@@ -7,9 +7,7 @@ Section Cross References
     main.o(i.SystemClock_Config) refers to stm32f1xx_ll_utils.o(i.LL_Init1msTick) for LL_Init1msTick
     main.o(i.SystemClock_Config) refers to stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock) for LL_SetSystemCoreClock
     main.o(i.main) refers to main.o(i.SystemClock_Config) for SystemClock_Config
-    main.o(i.main) refers to accelerometer.o(i.accelero_init) for accelero_init
-    main.o(i.main) refers to accelerometer.o(i.accelero_angle_bon) for accelero_angle_bon
-    main.o(i.main) refers to main.o(.data) for angle_bon
+    main.o(i.main) refers to chrono.o(i.Chrono_Background) for Chrono_Background
     chrono.o(i.Chrono_Background) refers to chrono.o(i.LL_GPIO_IsInputPinSet) for LL_GPIO_IsInputPinSet
     chrono.o(i.Chrono_Background) refers to chrono.o(i.Chrono_Stop) for Chrono_Stop
     chrono.o(i.Chrono_Background) refers to chrono.o(i.Chrono_Start) for Chrono_Start
@@ -30,21 +28,10 @@ Section Cross References
     chrono.o(i.Chrono_Stop) refers to mytimer.o(i.MyTimer_Stop) for MyTimer_Stop
     chrono.o(i.Chrono_Stop) refers to chrono.o(.data) for Chrono_Timer
     chrono.o(i.Chrono_Task_10ms) refers to chrono.o(.data) for Chrono_Time
-    accelerometer.o(i.accelero_angle_bon) refers to accelerometer.o(i.accelero_get_x) for accelero_get_x
-    accelerometer.o(i.accelero_angle_bon) refers to accelerometer.o(i.accelero_get_y) for accelero_get_y
-    accelerometer.o(i.accelero_angle_bon) refers to dflti.o(.text) for __aeabi_i2d
-    accelerometer.o(i.accelero_angle_bon) refers to ddiv.o(.text) for __aeabi_ddiv
-    accelerometer.o(i.accelero_angle_bon) refers to cdrcmple.o(.text) for __aeabi_cdrcmple
-    accelerometer.o(i.accelero_angle_bon) refers to accelerometer.o(.data) for x
-    accelerometer.o(i.accelero_get_x) refers to accelerometer.o(i.LL_ADC_REG_SetSequencerRanks) for LL_ADC_REG_SetSequencerRanks
-    accelerometer.o(i.accelero_get_x) refers to accelerometer.o(i.LL_ADC_REG_StartConversionSWStart) for LL_ADC_REG_StartConversionSWStart
-    accelerometer.o(i.accelero_get_x) refers to accelerometer.o(i.LL_ADC_IsActiveFlag_EOS) for LL_ADC_IsActiveFlag_EOS
-    accelerometer.o(i.accelero_get_y) refers to accelerometer.o(i.LL_ADC_REG_SetSequencerRanks) for LL_ADC_REG_SetSequencerRanks
-    accelerometer.o(i.accelero_get_y) refers to accelerometer.o(i.LL_ADC_REG_StartConversionSWStart) for LL_ADC_REG_StartConversionSWStart
-    accelerometer.o(i.accelero_get_y) refers to accelerometer.o(i.LL_ADC_IsActiveFlag_EOS) for LL_ADC_IsActiveFlag_EOS
-    accelerometer.o(i.accelero_init) refers to stm32f1xx_ll_adc.o(i.LL_ADC_Init) for LL_ADC_Init
-    accelerometer.o(i.accelero_init) refers to stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init) for LL_ADC_REG_Init
-    accelerometer.o(i.accelero_init) refers to accelerometer.o(i.LL_ADC_SetChannelSamplingTime) for LL_ADC_SetChannelSamplingTime
+    emetteur_rf.o(i.emetteur_rf_init) refers to emetteur_rf.o(i.LL_APB2_GRP1_EnableClock) for LL_APB2_GRP1_EnableClock
+    emetteur_rf.o(i.emetteur_rf_init) refers to stm32f1xx_ll_gpio.o(i.LL_GPIO_Init) for LL_GPIO_Init
+    emetteur_rf.o(i.emetteur_rf_init) refers to emetteur_rf.o(i.LL_APB1_GRP1_EnableClock) for LL_APB1_GRP1_EnableClock
+    emetteur_rf.o(i.emetteur_rf_init) refers to stm32f1xx_ll_usart.o(i.LL_USART_Init) for LL_USART_Init
     mytimer.o(i.MyTimer_Conf) refers to mytimer.o(i.LL_APB1_GRP1_EnableClock) for LL_APB1_GRP1_EnableClock
     mytimer.o(i.MyTimer_Conf) refers to stm32f1xx_ll_tim.o(i.LL_TIM_Init) for LL_TIM_Init
     mytimer.o(i.MyTimer_Conf) refers to mytimer.o(i.LL_TIM_DisableIT_UPDATE) for LL_TIM_DisableIT_UPDATE
@@ -137,6 +124,15 @@ Section Cross References
     stm32f1xx_ll_adc.o(i.LL_ADC_Init) refers to stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled) for LL_ADC_IsEnabled
     stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init) refers to main.o(i.assert_failed) for assert_failed
     stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init) refers to stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled) for LL_ADC_IsEnabled
+    stm32f1xx_ll_usart.o(i.LL_USART_ClockInit) refers to main.o(i.assert_failed) for assert_failed
+    stm32f1xx_ll_usart.o(i.LL_USART_ClockInit) refers to stm32f1xx_ll_usart.o(i.LL_USART_IsEnabled) for LL_USART_IsEnabled
+    stm32f1xx_ll_usart.o(i.LL_USART_DeInit) refers to main.o(i.assert_failed) for assert_failed
+    stm32f1xx_ll_usart.o(i.LL_USART_DeInit) refers to stm32f1xx_ll_usart.o(i.LL_APB1_GRP1_ForceReset) for LL_APB1_GRP1_ForceReset
+    stm32f1xx_ll_usart.o(i.LL_USART_DeInit) refers to stm32f1xx_ll_usart.o(i.LL_APB1_GRP1_ReleaseReset) for LL_APB1_GRP1_ReleaseReset
+    stm32f1xx_ll_usart.o(i.LL_USART_Init) refers to main.o(i.assert_failed) for assert_failed
+    stm32f1xx_ll_usart.o(i.LL_USART_Init) refers to stm32f1xx_ll_usart.o(i.LL_USART_IsEnabled) for LL_USART_IsEnabled
+    stm32f1xx_ll_usart.o(i.LL_USART_Init) refers to stm32f1xx_ll_rcc.o(i.LL_RCC_GetSystemClocksFreq) for LL_RCC_GetSystemClocksFreq
+    stm32f1xx_ll_usart.o(i.LL_USART_Init) refers to stm32f1xx_ll_usart.o(i.LL_USART_SetBaudRate) for LL_USART_SetBaudRate
     system_stm32f1xx.o(i.SystemCoreClockUpdate) refers to system_stm32f1xx.o(.data) for SystemCoreClock
     system_stm32f1xx.o(i.SystemCoreClockUpdate) refers to system_stm32f1xx.o(.constdata) for AHBPrescTable
     startup_stm32f103xb.o(RESET) refers to startup_stm32f103xb.o(STACK) for __initial_sp
@@ -154,11 +150,6 @@ Section Cross References
     entry.o(.ARM.Collect$$$$00000000) refers (Special) to entry9a.o(.ARM.Collect$$$$0000000B) for _main_init
     entry.o(.ARM.Collect$$$$00000000) refers (Special) to entry5.o(.ARM.Collect$$$$00000004) for _main_scatterload
     entry.o(.ARM.Collect$$$$00000000) refers (Special) to entry2.o(.ARM.Collect$$$$00000001) for _main_stk
-    ddiv.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
-    ddiv.o(.text) refers to depilogue.o(.text) for _double_round
-    dflti.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
-    dflti.o(.text) refers to depilogue.o(.text) for _double_epilogue
-    cdrcmple.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
     entry2.o(.ARM.Collect$$$$00000001) refers to entry2.o(.ARM.Collect$$$$00002712) for __lit__00000000
     entry2.o(.ARM.Collect$$$$00002712) refers to startup_stm32f103xb.o(STACK) for __initial_sp
     entry2.o(__vectab_stack_and_reset_area) refers to startup_stm32f103xb.o(STACK) for __initial_sp
@@ -166,8 +157,6 @@ Section Cross References
     entry5.o(.ARM.Collect$$$$00000004) refers to init.o(.text) for __scatterload
     entry9a.o(.ARM.Collect$$$$0000000B) refers to main.o(i.main) for main
     entry9b.o(.ARM.Collect$$$$0000000C) refers to main.o(i.main) for main
-    depilogue.o(.text) refers to llshl.o(.text) for __aeabi_llsl
-    depilogue.o(.text) refers to llushr.o(.text) for __aeabi_llsr
     init.o(.text) refers to entry5.o(.ARM.Collect$$$$00000004) for __main_after_scatterload
 
 
@@ -178,34 +167,30 @@ Removing Unused input sections from the image.
     Removing main.o(.rev16_text), (4 bytes).
     Removing main.o(.revsh_text), (4 bytes).
     Removing main.o(.rrx_text), (6 bytes).
+    Removing main.o(i.assert_failed), (4 bytes).
     Removing chrono.o(.rev16_text), (4 bytes).
     Removing chrono.o(.revsh_text), (4 bytes).
     Removing chrono.o(.rrx_text), (6 bytes).
-    Removing chrono.o(i.Chrono_Background), (60 bytes).
     Removing chrono.o(i.Chrono_Conf), (72 bytes).
     Removing chrono.o(i.Chrono_Conf_io), (108 bytes).
     Removing chrono.o(i.Chrono_Read), (8 bytes).
-    Removing chrono.o(i.Chrono_Reset), (32 bytes).
-    Removing chrono.o(i.Chrono_Start), (28 bytes).
-    Removing chrono.o(i.Chrono_Stop), (28 bytes).
     Removing chrono.o(i.Chrono_Task_10ms), (124 bytes).
-    Removing chrono.o(i.LL_GPIO_IsInputPinSet), (26 bytes).
-    Removing chrono.o(.data), (12 bytes).
-    Removing accelerometer.o(.rev16_text), (4 bytes).
-    Removing accelerometer.o(.revsh_text), (4 bytes).
-    Removing accelerometer.o(.rrx_text), (6 bytes).
+    Removing emetteur_rf.o(.rev16_text), (4 bytes).
+    Removing emetteur_rf.o(.revsh_text), (4 bytes).
+    Removing emetteur_rf.o(.rrx_text), (6 bytes).
+    Removing emetteur_rf.o(i.LL_APB1_GRP1_EnableClock), (28 bytes).
+    Removing emetteur_rf.o(i.LL_APB2_GRP1_EnableClock), (28 bytes).
+    Removing emetteur_rf.o(i.emetteur_rf_init), (228 bytes).
+    Removing emetteur_rf.o(i.rec_send_bytes), (36 bytes).
     Removing mytimer.o(.rev16_text), (4 bytes).
     Removing mytimer.o(.revsh_text), (4 bytes).
     Removing mytimer.o(.rrx_text), (6 bytes).
     Removing mytimer.o(i.LL_APB1_GRP1_EnableClock), (28 bytes).
-    Removing mytimer.o(i.LL_TIM_DisableCounter), (10 bytes).
     Removing mytimer.o(i.LL_TIM_DisableIT_UPDATE), (10 bytes).
     Removing mytimer.o(i.MyTimer_Conf), (132 bytes).
     Removing mytimer.o(i.MyTimer_IT_Conf), (200 bytes).
     Removing mytimer.o(i.MyTimer_IT_Disable), (12 bytes).
     Removing mytimer.o(i.MyTimer_IT_Enable), (14 bytes).
-    Removing mytimer.o(i.MyTimer_Start), (14 bytes).
-    Removing mytimer.o(i.MyTimer_Stop), (12 bytes).
     Removing mytimer.o(.constdata), (35 bytes).
     Removing stm32f1xx_ll_rcc.o(.rev16_text), (4 bytes).
     Removing stm32f1xx_ll_rcc.o(.revsh_text), (4 bytes).
@@ -279,8 +264,23 @@ Removing Unused input sections from the image.
     Removing stm32f1xx_ll_adc.o(i.LL_ADC_DeInit), (272 bytes).
     Removing stm32f1xx_ll_adc.o(i.LL_ADC_INJ_Init), (316 bytes).
     Removing stm32f1xx_ll_adc.o(i.LL_ADC_INJ_StructInit), (16 bytes).
+    Removing stm32f1xx_ll_adc.o(i.LL_ADC_Init), (164 bytes).
+    Removing stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled), (10 bytes).
+    Removing stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init), (504 bytes).
     Removing stm32f1xx_ll_adc.o(i.LL_ADC_REG_StructInit), (18 bytes).
     Removing stm32f1xx_ll_adc.o(i.LL_ADC_StructInit), (12 bytes).
+    Removing stm32f1xx_ll_usart.o(.rev16_text), (4 bytes).
+    Removing stm32f1xx_ll_usart.o(.revsh_text), (4 bytes).
+    Removing stm32f1xx_ll_usart.o(.rrx_text), (6 bytes).
+    Removing stm32f1xx_ll_usart.o(i.LL_APB1_GRP1_ForceReset), (16 bytes).
+    Removing stm32f1xx_ll_usart.o(i.LL_APB1_GRP1_ReleaseReset), (16 bytes).
+    Removing stm32f1xx_ll_usart.o(i.LL_USART_ClockInit), (276 bytes).
+    Removing stm32f1xx_ll_usart.o(i.LL_USART_ClockStructInit), (12 bytes).
+    Removing stm32f1xx_ll_usart.o(i.LL_USART_DeInit), (180 bytes).
+    Removing stm32f1xx_ll_usart.o(i.LL_USART_Init), (432 bytes).
+    Removing stm32f1xx_ll_usart.o(i.LL_USART_IsEnabled), (10 bytes).
+    Removing stm32f1xx_ll_usart.o(i.LL_USART_SetBaudRate), (158 bytes).
+    Removing stm32f1xx_ll_usart.o(i.LL_USART_StructInit), (24 bytes).
     Removing system_stm32f1xx.o(.rev16_text), (4 bytes).
     Removing system_stm32f1xx.o(.revsh_text), (4 bytes).
     Removing system_stm32f1xx.o(.rrx_text), (6 bytes).
@@ -288,7 +288,7 @@ Removing Unused input sections from the image.
     Removing system_stm32f1xx.o(.constdata), (24 bytes).
     Removing startup_stm32f103xb.o(HEAP), (512 bytes).
 
-112 unused section(s) (total 10790 bytes) removed from the image.
+123 unused section(s) (total 12708 bytes) removed from the image.
 
 ==============================================================================
 
@@ -300,44 +300,39 @@ Image Symbol Table
 
     ../Src/main.c                            0x00000000   Number         0  main.o ABSOLUTE
     ../Src/system_stm32f1xx.c                0x00000000   Number         0  system_stm32f1xx.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry9a.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11a.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10b.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11b.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10a.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry9b.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry2.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11b.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry9a.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11a.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry8b.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10b.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry8a.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry7b.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry7a.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry5.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry2.o ABSOLUTE
-    ../clib/microlib/longlong.c              0x00000000   Number         0  llshl.o ABSOLUTE
-    ../clib/microlib/longlong.c              0x00000000   Number         0  llushr.o ABSOLUTE
-    ../clib/microlib/stubs.s                 0x00000000   Number         0  iusefp.o ABSOLUTE
-    ../fplib/microlib/fpdiv.c                0x00000000   Number         0  ddiv.o ABSOLUTE
-    ../fplib/microlib/fpepilogue.c           0x00000000   Number         0  depilogue.o ABSOLUTE
-    ../fplib/microlib/fpflt.c                0x00000000   Number         0  dflti.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry.o ABSOLUTE
     ..\LLDrivers\src\stm32f1xx_ll_adc.c      0x00000000   Number         0  stm32f1xx_ll_adc.o ABSOLUTE
     ..\LLDrivers\src\stm32f1xx_ll_gpio.c     0x00000000   Number         0  stm32f1xx_ll_gpio.o ABSOLUTE
     ..\LLDrivers\src\stm32f1xx_ll_rcc.c      0x00000000   Number         0  stm32f1xx_ll_rcc.o ABSOLUTE
     ..\LLDrivers\src\stm32f1xx_ll_tim.c      0x00000000   Number         0  stm32f1xx_ll_tim.o ABSOLUTE
+    ..\LLDrivers\src\stm32f1xx_ll_usart.c    0x00000000   Number         0  stm32f1xx_ll_usart.o ABSOLUTE
     ..\LLDrivers\src\stm32f1xx_ll_utils.c    0x00000000   Number         0  stm32f1xx_ll_utils.o ABSOLUTE
     ..\MyDrivers\MyTimer.c                   0x00000000   Number         0  mytimer.o ABSOLUTE
     ..\Services\Chrono.c                     0x00000000   Number         0  chrono.o ABSOLUTE
-    ..\Services\accelerometer.c              0x00000000   Number         0  accelerometer.o ABSOLUTE
+    ..\Services\emetteur_rf.c                0x00000000   Number         0  emetteur_rf.o ABSOLUTE
     ..\Src\main.c                            0x00000000   Number         0  main.o ABSOLUTE
     ..\Src\system_stm32f1xx.c                0x00000000   Number         0  system_stm32f1xx.o ABSOLUTE
     ..\\LLDrivers\\src\\stm32f1xx_ll_adc.c   0x00000000   Number         0  stm32f1xx_ll_adc.o ABSOLUTE
     ..\\LLDrivers\\src\\stm32f1xx_ll_gpio.c  0x00000000   Number         0  stm32f1xx_ll_gpio.o ABSOLUTE
     ..\\LLDrivers\\src\\stm32f1xx_ll_rcc.c   0x00000000   Number         0  stm32f1xx_ll_rcc.o ABSOLUTE
     ..\\LLDrivers\\src\\stm32f1xx_ll_tim.c   0x00000000   Number         0  stm32f1xx_ll_tim.o ABSOLUTE
+    ..\\LLDrivers\\src\\stm32f1xx_ll_usart.c 0x00000000   Number         0  stm32f1xx_ll_usart.o ABSOLUTE
     ..\\LLDrivers\\src\\stm32f1xx_ll_utils.c 0x00000000   Number         0  stm32f1xx_ll_utils.o ABSOLUTE
     ..\\MyDrivers\\MyTimer.c                 0x00000000   Number         0  mytimer.o ABSOLUTE
     ..\\Services\\Chrono.c                   0x00000000   Number         0  chrono.o ABSOLUTE
-    ..\\Services\\accelerometer.c            0x00000000   Number         0  accelerometer.o ABSOLUTE
-    cdrcmple.s                               0x00000000   Number         0  cdrcmple.o ABSOLUTE
+    ..\\Services\\emetteur_rf.c              0x00000000   Number         0  emetteur_rf.o ABSOLUTE
     dc.s                                     0x00000000   Number         0  dc.o ABSOLUTE
     handlers.s                               0x00000000   Number         0  handlers.o ABSOLUTE
     init.s                                   0x00000000   Number         0  init.o ABSOLUTE
@@ -354,56 +349,43 @@ Image Symbol Table
     .ARM.Collect$$$$00002712                 0x080000fc   Section        4  entry2.o(.ARM.Collect$$$$00002712)
     __lit__00000000                          0x080000fc   Data           4  entry2.o(.ARM.Collect$$$$00002712)
     .text                                    0x08000100   Section       36  startup_stm32f103xb.o(.text)
-    .text                                    0x08000124   Section        0  ddiv.o(.text)
-    .text                                    0x08000202   Section        0  dflti.o(.text)
-    .text                                    0x08000224   Section       48  cdrcmple.o(.text)
-    .text                                    0x08000254   Section        0  depilogue.o(.text)
-    .text                                    0x08000254   Section        0  iusefp.o(.text)
-    .text                                    0x08000310   Section       36  init.o(.text)
-    .text                                    0x08000334   Section        0  llshl.o(.text)
-    .text                                    0x08000352   Section        0  llushr.o(.text)
-    i.LL_ADC_Init                            0x08000374   Section        0  stm32f1xx_ll_adc.o(i.LL_ADC_Init)
-    i.LL_ADC_IsActiveFlag_EOS                0x08000418   Section        0  accelerometer.o(i.LL_ADC_IsActiveFlag_EOS)
-    LL_ADC_IsActiveFlag_EOS                  0x08000419   Thumb Code    10  accelerometer.o(i.LL_ADC_IsActiveFlag_EOS)
-    i.LL_ADC_IsEnabled                       0x08000422   Section        0  stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled)
-    LL_ADC_IsEnabled                         0x08000423   Thumb Code    10  stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled)
-    i.LL_ADC_REG_Init                        0x0800042c   Section        0  stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init)
-    i.LL_ADC_REG_SetSequencerRanks           0x08000624   Section        0  accelerometer.o(i.LL_ADC_REG_SetSequencerRanks)
-    LL_ADC_REG_SetSequencerRanks             0x08000625   Thumb Code    56  accelerometer.o(i.LL_ADC_REG_SetSequencerRanks)
-    i.LL_ADC_REG_StartConversionSWStart      0x0800065c   Section        0  accelerometer.o(i.LL_ADC_REG_StartConversionSWStart)
-    LL_ADC_REG_StartConversionSWStart        0x0800065d   Thumb Code    10  accelerometer.o(i.LL_ADC_REG_StartConversionSWStart)
-    i.LL_ADC_SetChannelSamplingTime          0x08000666   Section        0  accelerometer.o(i.LL_ADC_SetChannelSamplingTime)
-    LL_ADC_SetChannelSamplingTime            0x08000667   Thumb Code    82  accelerometer.o(i.LL_ADC_SetChannelSamplingTime)
-    i.LL_Init1msTick                         0x080006b8   Section        0  stm32f1xx_ll_utils.o(i.LL_Init1msTick)
-    i.LL_SetSystemCoreClock                  0x080006d4   Section        0  stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock)
-    i.LL_TIM_ClearFlag_UPDATE                0x080006e0   Section        0  mytimer.o(i.LL_TIM_ClearFlag_UPDATE)
-    LL_TIM_ClearFlag_UPDATE                  0x080006e1   Thumb Code     8  mytimer.o(i.LL_TIM_ClearFlag_UPDATE)
-    i.SystemClock_Config                     0x080006e8   Section        0  main.o(i.SystemClock_Config)
-    i.SystemInit                             0x080007d8   Section        0  system_stm32f1xx.o(i.SystemInit)
-    i.TIM1_UP_IRQHandler                     0x08000830   Section        0  mytimer.o(i.TIM1_UP_IRQHandler)
-    i.TIM2_IRQHandler                        0x08000848   Section        0  mytimer.o(i.TIM2_IRQHandler)
-    i.TIM3_IRQHandler                        0x08000860   Section        0  mytimer.o(i.TIM3_IRQHandler)
-    i.TIM4_IRQHandler                        0x08000878   Section        0  mytimer.o(i.TIM4_IRQHandler)
-    i.__scatterload_copy                     0x08000890   Section       14  handlers.o(i.__scatterload_copy)
-    i.__scatterload_null                     0x0800089e   Section        2  handlers.o(i.__scatterload_null)
-    i.__scatterload_zeroinit                 0x080008a0   Section       14  handlers.o(i.__scatterload_zeroinit)
-    i.accelero_angle_bon                     0x080008b0   Section        0  accelerometer.o(i.accelero_angle_bon)
-    i.accelero_get_x                         0x08000914   Section        0  accelerometer.o(i.accelero_get_x)
-    i.accelero_get_y                         0x08000948   Section        0  accelerometer.o(i.accelero_get_y)
-    i.accelero_init                          0x08000980   Section        0  accelerometer.o(i.accelero_init)
-    i.assert_failed                          0x08000a3c   Section        0  main.o(i.assert_failed)
-    i.main                                   0x08000a40   Section        0  main.o(i.main)
-    .data                                    0x20000000   Section        4  main.o(.data)
-    .data                                    0x20000008   Section       16  accelerometer.o(.data)
-    .data                                    0x20000018   Section       16  mytimer.o(.data)
-    .data                                    0x20000028   Section        4  system_stm32f1xx.o(.data)
-    STACK                                    0x20000030   Section     1024  startup_stm32f103xb.o(STACK)
+    .text                                    0x08000124   Section       36  init.o(.text)
+    i.Chrono_Background                      0x08000148   Section        0  chrono.o(i.Chrono_Background)
+    i.Chrono_Reset                           0x08000184   Section        0  chrono.o(i.Chrono_Reset)
+    i.Chrono_Start                           0x080001a4   Section        0  chrono.o(i.Chrono_Start)
+    i.Chrono_Stop                            0x080001c0   Section        0  chrono.o(i.Chrono_Stop)
+    i.LL_GPIO_IsInputPinSet                  0x080001dc   Section        0  chrono.o(i.LL_GPIO_IsInputPinSet)
+    LL_GPIO_IsInputPinSet                    0x080001dd   Thumb Code    26  chrono.o(i.LL_GPIO_IsInputPinSet)
+    i.LL_Init1msTick                         0x080001f6   Section        0  stm32f1xx_ll_utils.o(i.LL_Init1msTick)
+    i.LL_SetSystemCoreClock                  0x08000214   Section        0  stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock)
+    i.LL_TIM_ClearFlag_UPDATE                0x08000220   Section        0  mytimer.o(i.LL_TIM_ClearFlag_UPDATE)
+    LL_TIM_ClearFlag_UPDATE                  0x08000221   Thumb Code     8  mytimer.o(i.LL_TIM_ClearFlag_UPDATE)
+    i.LL_TIM_DisableCounter                  0x08000228   Section        0  mytimer.o(i.LL_TIM_DisableCounter)
+    LL_TIM_DisableCounter                    0x08000229   Thumb Code    10  mytimer.o(i.LL_TIM_DisableCounter)
+    i.MyTimer_Start                          0x08000232   Section        0  mytimer.o(i.MyTimer_Start)
+    i.MyTimer_Stop                           0x08000240   Section        0  mytimer.o(i.MyTimer_Stop)
+    i.SystemClock_Config                     0x0800024c   Section        0  main.o(i.SystemClock_Config)
+    i.SystemInit                             0x0800033c   Section        0  system_stm32f1xx.o(i.SystemInit)
+    i.TIM1_UP_IRQHandler                     0x08000394   Section        0  mytimer.o(i.TIM1_UP_IRQHandler)
+    i.TIM2_IRQHandler                        0x080003ac   Section        0  mytimer.o(i.TIM2_IRQHandler)
+    i.TIM3_IRQHandler                        0x080003c4   Section        0  mytimer.o(i.TIM3_IRQHandler)
+    i.TIM4_IRQHandler                        0x080003dc   Section        0  mytimer.o(i.TIM4_IRQHandler)
+    i.__scatterload_copy                     0x080003f4   Section       14  handlers.o(i.__scatterload_copy)
+    i.__scatterload_null                     0x08000402   Section        2  handlers.o(i.__scatterload_null)
+    i.__scatterload_zeroinit                 0x08000404   Section       14  handlers.o(i.__scatterload_zeroinit)
+    i.main                                   0x08000412   Section        0  main.o(i.main)
+    .data                                    0x20000000   Section       12  chrono.o(.data)
+    Chrono_Time                              0x20000000   Data           3  chrono.o(.data)
+    Chrono_Timer                             0x20000004   Data           4  chrono.o(.data)
+    .data                                    0x2000000c   Section       16  mytimer.o(.data)
+    .data                                    0x2000001c   Section        4  system_stm32f1xx.o(.data)
+    STACK                                    0x20000020   Section     1024  startup_stm32f103xb.o(STACK)
 
     Global Symbols
 
     Symbol Name                              Value     Ov Type        Size  Object(Section)
 
-    BuildAttributes$$THM_ISAv4$P$D$K$B$S$PE$A:L22UL41UL21$X:L11$S22US41US21$IEEE1$IW$USESV6$~STKCKD$USESV7$~SHL$OSPACE$ROPI$EBA8$MICROLIB$REQ8$PRES8$EABIv2 0x00000000   Number         0  anon$$obj.o ABSOLUTE
+    BuildAttributes$$THM_ISAv4$P$D$K$B$S$PE$A:L22UL41UL21$X:L11$S22US41US21$IEEE1$IW$USESV6$~STKCKD$USESV7$~SHL$OSPACE$EBA8$MICROLIB$REQ8$PRES8$EABIv2 0x00000000   Number         0  anon$$obj.o ABSOLUTE
     __ARM_use_no_argv                        0x00000000   Number         0  main.o ABSOLUTE
     __cpp_initialize__aeabi_                  - Undefined Weak Reference
     __cxa_finalize                            - Undefined Weak Reference
@@ -471,49 +453,35 @@ Image Symbol Table
     USB_HP_CAN1_TX_IRQHandler                0x0800011b   Thumb Code     0  startup_stm32f103xb.o(.text)
     USB_LP_CAN1_RX0_IRQHandler               0x0800011b   Thumb Code     0  startup_stm32f103xb.o(.text)
     WWDG_IRQHandler                          0x0800011b   Thumb Code     0  startup_stm32f103xb.o(.text)
-    __aeabi_ddiv                             0x08000125   Thumb Code   222  ddiv.o(.text)
-    __aeabi_i2d                              0x08000203   Thumb Code    34  dflti.o(.text)
-    __aeabi_cdrcmple                         0x08000225   Thumb Code    48  cdrcmple.o(.text)
-    __I$use$fp                               0x08000255   Thumb Code     0  iusefp.o(.text)
-    _double_round                            0x08000255   Thumb Code    30  depilogue.o(.text)
-    _double_epilogue                         0x08000273   Thumb Code   156  depilogue.o(.text)
-    __scatterload                            0x08000311   Thumb Code    28  init.o(.text)
-    __scatterload_rt2                        0x08000311   Thumb Code     0  init.o(.text)
-    __aeabi_llsl                             0x08000335   Thumb Code    30  llshl.o(.text)
-    _ll_shift_l                              0x08000335   Thumb Code     0  llshl.o(.text)
-    __aeabi_llsr                             0x08000353   Thumb Code    32  llushr.o(.text)
-    _ll_ushift_r                             0x08000353   Thumb Code     0  llushr.o(.text)
-    LL_ADC_Init                              0x08000375   Thumb Code   120  stm32f1xx_ll_adc.o(i.LL_ADC_Init)
-    LL_ADC_REG_Init                          0x0800042d   Thumb Code   454  stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init)
-    LL_Init1msTick                           0x080006b9   Thumb Code    28  stm32f1xx_ll_utils.o(i.LL_Init1msTick)
-    LL_SetSystemCoreClock                    0x080006d5   Thumb Code     6  stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock)
-    SystemClock_Config                       0x080006e9   Thumb Code   226  main.o(i.SystemClock_Config)
-    SystemInit                               0x080007d9   Thumb Code    70  system_stm32f1xx.o(i.SystemInit)
-    TIM1_UP_IRQHandler                       0x08000831   Thumb Code    16  mytimer.o(i.TIM1_UP_IRQHandler)
-    TIM2_IRQHandler                          0x08000849   Thumb Code    18  mytimer.o(i.TIM2_IRQHandler)
-    TIM3_IRQHandler                          0x08000861   Thumb Code    16  mytimer.o(i.TIM3_IRQHandler)
-    TIM4_IRQHandler                          0x08000879   Thumb Code    16  mytimer.o(i.TIM4_IRQHandler)
-    __scatterload_copy                       0x08000891   Thumb Code    14  handlers.o(i.__scatterload_copy)
-    __scatterload_null                       0x0800089f   Thumb Code     2  handlers.o(i.__scatterload_null)
-    __scatterload_zeroinit                   0x080008a1   Thumb Code    14  handlers.o(i.__scatterload_zeroinit)
-    accelero_angle_bon                       0x080008b1   Thumb Code    78  accelerometer.o(i.accelero_angle_bon)
-    accelero_get_x                           0x08000915   Thumb Code    46  accelerometer.o(i.accelero_get_x)
-    accelero_get_y                           0x08000949   Thumb Code    46  accelerometer.o(i.accelero_get_y)
-    accelero_init                            0x08000981   Thumb Code   170  accelerometer.o(i.accelero_init)
-    assert_failed                            0x08000a3d   Thumb Code     4  main.o(i.assert_failed)
-    main                                     0x08000a41   Thumb Code    20  main.o(i.main)
-    Region$$Table$$Base                      0x08000a58   Number         0  anon$$obj.o(Region$$Table)
-    Region$$Table$$Limit                     0x08000a78   Number         0  anon$$obj.o(Region$$Table)
-    angle_bon                                0x20000000   Data           4  main.o(.data)
-    x                                        0x20000008   Data           4  accelerometer.o(.data)
-    y                                        0x2000000c   Data           4  accelerometer.o(.data)
-    angle                                    0x20000010   Data           8  accelerometer.o(.data)
-    Ptr_ItFct_TIM1                           0x20000018   Data           4  mytimer.o(.data)
-    Ptr_ItFct_TIM2                           0x2000001c   Data           4  mytimer.o(.data)
-    Ptr_ItFct_TIM3                           0x20000020   Data           4  mytimer.o(.data)
-    Ptr_ItFct_TIM4                           0x20000024   Data           4  mytimer.o(.data)
-    SystemCoreClock                          0x20000028   Data           4  system_stm32f1xx.o(.data)
-    __initial_sp                             0x20000430   Data           0  startup_stm32f103xb.o(STACK)
+    __scatterload                            0x08000125   Thumb Code    28  init.o(.text)
+    __scatterload_rt2                        0x08000125   Thumb Code     0  init.o(.text)
+    Chrono_Background                        0x08000149   Thumb Code    44  chrono.o(i.Chrono_Background)
+    Chrono_Reset                             0x08000185   Thumb Code    22  chrono.o(i.Chrono_Reset)
+    Chrono_Start                             0x080001a5   Thumb Code    18  chrono.o(i.Chrono_Start)
+    Chrono_Stop                              0x080001c1   Thumb Code    18  chrono.o(i.Chrono_Stop)
+    LL_Init1msTick                           0x080001f7   Thumb Code    28  stm32f1xx_ll_utils.o(i.LL_Init1msTick)
+    LL_SetSystemCoreClock                    0x08000215   Thumb Code     6  stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock)
+    MyTimer_Start                            0x08000233   Thumb Code    14  mytimer.o(i.MyTimer_Start)
+    MyTimer_Stop                             0x08000241   Thumb Code    12  mytimer.o(i.MyTimer_Stop)
+    SystemClock_Config                       0x0800024d   Thumb Code   226  main.o(i.SystemClock_Config)
+    SystemInit                               0x0800033d   Thumb Code    70  system_stm32f1xx.o(i.SystemInit)
+    TIM1_UP_IRQHandler                       0x08000395   Thumb Code    16  mytimer.o(i.TIM1_UP_IRQHandler)
+    TIM2_IRQHandler                          0x080003ad   Thumb Code    18  mytimer.o(i.TIM2_IRQHandler)
+    TIM3_IRQHandler                          0x080003c5   Thumb Code    16  mytimer.o(i.TIM3_IRQHandler)
+    TIM4_IRQHandler                          0x080003dd   Thumb Code    16  mytimer.o(i.TIM4_IRQHandler)
+    __scatterload_copy                       0x080003f5   Thumb Code    14  handlers.o(i.__scatterload_copy)
+    __scatterload_null                       0x08000403   Thumb Code     2  handlers.o(i.__scatterload_null)
+    __scatterload_zeroinit                   0x08000405   Thumb Code    14  handlers.o(i.__scatterload_zeroinit)
+    main                                     0x08000413   Thumb Code    12  main.o(i.main)
+    Region$$Table$$Base                      0x08000420   Number         0  anon$$obj.o(Region$$Table)
+    Region$$Table$$Limit                     0x08000440   Number         0  anon$$obj.o(Region$$Table)
+    running                                  0x20000008   Data           4  chrono.o(.data)
+    Ptr_ItFct_TIM1                           0x2000000c   Data           4  mytimer.o(.data)
+    Ptr_ItFct_TIM2                           0x20000010   Data           4  mytimer.o(.data)
+    Ptr_ItFct_TIM3                           0x20000014   Data           4  mytimer.o(.data)
+    Ptr_ItFct_TIM4                           0x20000018   Data           4  mytimer.o(.data)
+    SystemCoreClock                          0x2000001c   Data           4  system_stm32f1xx.o(.data)
+    __initial_sp                             0x20000420   Data           0  startup_stm32f103xb.o(STACK)
 
 
 
@@ -523,73 +491,58 @@ Memory Map of the image
 
   Image Entry point : 0x080000ed
 
-  Load Region LR_IROM1 (Base: 0x08000000, Size: 0x00000aa4, Max: 0x00020000, ABSOLUTE)
+  Load Region LR_IROM1 (Base: 0x08000000, Size: 0x00000460, Max: 0x00020000, ABSOLUTE)
 
-    Execution Region ER_IROM1 (Exec base: 0x08000000, Load base: 0x08000000, Size: 0x00000a78, Max: 0x00020000, ABSOLUTE)
+    Execution Region ER_IROM1 (Exec base: 0x08000000, Load base: 0x08000000, Size: 0x00000440, Max: 0x00020000, ABSOLUTE)
 
     Exec Addr    Load Addr    Size         Type   Attr      Idx    E Section Name        Object
 
-    0x08000000   0x08000000   0x000000ec   Data   RO          873    RESET               startup_stm32f103xb.o
-    0x080000ec   0x080000ec   0x00000000   Code   RO          878  * .ARM.Collect$$$$00000000  mc_w.l(entry.o)
-    0x080000ec   0x080000ec   0x00000004   Code   RO          887    .ARM.Collect$$$$00000001  mc_w.l(entry2.o)
-    0x080000f0   0x080000f0   0x00000004   Code   RO          890    .ARM.Collect$$$$00000004  mc_w.l(entry5.o)
-    0x080000f4   0x080000f4   0x00000000   Code   RO          892    .ARM.Collect$$$$00000008  mc_w.l(entry7b.o)
-    0x080000f4   0x080000f4   0x00000000   Code   RO          894    .ARM.Collect$$$$0000000A  mc_w.l(entry8b.o)
-    0x080000f4   0x080000f4   0x00000008   Code   RO          895    .ARM.Collect$$$$0000000B  mc_w.l(entry9a.o)
-    0x080000fc   0x080000fc   0x00000000   Code   RO          897    .ARM.Collect$$$$0000000D  mc_w.l(entry10a.o)
-    0x080000fc   0x080000fc   0x00000000   Code   RO          899    .ARM.Collect$$$$0000000F  mc_w.l(entry11a.o)
-    0x080000fc   0x080000fc   0x00000004   Code   RO          888    .ARM.Collect$$$$00002712  mc_w.l(entry2.o)
-    0x08000100   0x08000100   0x00000024   Code   RO          874    .text               startup_stm32f103xb.o
-    0x08000124   0x08000124   0x000000de   Code   RO          881    .text               mf_w.l(ddiv.o)
-    0x08000202   0x08000202   0x00000022   Code   RO          883    .text               mf_w.l(dflti.o)
-    0x08000224   0x08000224   0x00000030   Code   RO          885    .text               mf_w.l(cdrcmple.o)
-    0x08000254   0x08000254   0x00000000   Code   RO          901    .text               mc_w.l(iusefp.o)
-    0x08000254   0x08000254   0x000000ba   Code   RO          902    .text               mf_w.l(depilogue.o)
-    0x0800030e   0x0800030e   0x00000002   PAD
-    0x08000310   0x08000310   0x00000024   Code   RO          904    .text               mc_w.l(init.o)
-    0x08000334   0x08000334   0x0000001e   Code   RO          906    .text               mc_w.l(llshl.o)
-    0x08000352   0x08000352   0x00000020   Code   RO          908    .text               mc_w.l(llushr.o)
-    0x08000372   0x08000372   0x00000002   PAD
-    0x08000374   0x08000374   0x000000a4   Code   RO          757    i.LL_ADC_Init       stm32f1xx_ll_adc.o
-    0x08000418   0x08000418   0x0000000a   Code   RO          170    i.LL_ADC_IsActiveFlag_EOS  accelerometer.o
-    0x08000422   0x08000422   0x0000000a   Code   RO          758    i.LL_ADC_IsEnabled  stm32f1xx_ll_adc.o
-    0x0800042c   0x0800042c   0x000001f8   Code   RO          759    i.LL_ADC_REG_Init   stm32f1xx_ll_adc.o
-    0x08000624   0x08000624   0x00000038   Code   RO          171    i.LL_ADC_REG_SetSequencerRanks  accelerometer.o
-    0x0800065c   0x0800065c   0x0000000a   Code   RO          172    i.LL_ADC_REG_StartConversionSWStart  accelerometer.o
-    0x08000666   0x08000666   0x00000052   Code   RO          173    i.LL_ADC_SetChannelSamplingTime  accelerometer.o
-    0x080006b8   0x080006b8   0x0000001c   Code   RO          443    i.LL_Init1msTick    stm32f1xx_ll_utils.o
-    0x080006d4   0x080006d4   0x0000000c   Code   RO          450    i.LL_SetSystemCoreClock  stm32f1xx_ll_utils.o
-    0x080006e0   0x080006e0   0x00000008   Code   RO          252    i.LL_TIM_ClearFlag_UPDATE  mytimer.o
-    0x080006e8   0x080006e8   0x000000f0   Code   RO            4    i.SystemClock_Config  main.o
-    0x080007d8   0x080007d8   0x00000058   Code   RO          838    i.SystemInit        system_stm32f1xx.o
-    0x08000830   0x08000830   0x00000018   Code   RO          261    i.TIM1_UP_IRQHandler  mytimer.o
-    0x08000848   0x08000848   0x00000018   Code   RO          262    i.TIM2_IRQHandler   mytimer.o
-    0x08000860   0x08000860   0x00000018   Code   RO          263    i.TIM3_IRQHandler   mytimer.o
-    0x08000878   0x08000878   0x00000018   Code   RO          264    i.TIM4_IRQHandler   mytimer.o
-    0x08000890   0x08000890   0x0000000e   Code   RO          912    i.__scatterload_copy  mc_w.l(handlers.o)
-    0x0800089e   0x0800089e   0x00000002   Code   RO          913    i.__scatterload_null  mc_w.l(handlers.o)
-    0x080008a0   0x080008a0   0x0000000e   Code   RO          914    i.__scatterload_zeroinit  mc_w.l(handlers.o)
-    0x080008ae   0x080008ae   0x00000002   PAD
-    0x080008b0   0x080008b0   0x00000064   Code   RO          174    i.accelero_angle_bon  accelerometer.o
-    0x08000914   0x08000914   0x00000034   Code   RO          175    i.accelero_get_x    accelerometer.o
-    0x08000948   0x08000948   0x00000038   Code   RO          176    i.accelero_get_y    accelerometer.o
-    0x08000980   0x08000980   0x000000bc   Code   RO          177    i.accelero_init     accelerometer.o
-    0x08000a3c   0x08000a3c   0x00000004   Code   RO            5    i.assert_failed     main.o
-    0x08000a40   0x08000a40   0x00000018   Code   RO            6    i.main              main.o
-    0x08000a58   0x08000a58   0x00000020   Data   RO          910    Region$$Table       anon$$obj.o
+    0x08000000   0x08000000   0x000000ec   Data   RO          912    RESET               startup_stm32f103xb.o
+    0x080000ec   0x080000ec   0x00000000   Code   RO          917  * .ARM.Collect$$$$00000000  mc_w.l(entry.o)
+    0x080000ec   0x080000ec   0x00000004   Code   RO          920    .ARM.Collect$$$$00000001  mc_w.l(entry2.o)
+    0x080000f0   0x080000f0   0x00000004   Code   RO          923    .ARM.Collect$$$$00000004  mc_w.l(entry5.o)
+    0x080000f4   0x080000f4   0x00000000   Code   RO          925    .ARM.Collect$$$$00000008  mc_w.l(entry7b.o)
+    0x080000f4   0x080000f4   0x00000000   Code   RO          927    .ARM.Collect$$$$0000000A  mc_w.l(entry8b.o)
+    0x080000f4   0x080000f4   0x00000008   Code   RO          928    .ARM.Collect$$$$0000000B  mc_w.l(entry9a.o)
+    0x080000fc   0x080000fc   0x00000000   Code   RO          930    .ARM.Collect$$$$0000000D  mc_w.l(entry10a.o)
+    0x080000fc   0x080000fc   0x00000000   Code   RO          932    .ARM.Collect$$$$0000000F  mc_w.l(entry11a.o)
+    0x080000fc   0x080000fc   0x00000004   Code   RO          921    .ARM.Collect$$$$00002712  mc_w.l(entry2.o)
+    0x08000100   0x08000100   0x00000024   Code   RO          913    .text               startup_stm32f103xb.o
+    0x08000124   0x08000124   0x00000024   Code   RO          934    .text               mc_w.l(init.o)
+    0x08000148   0x08000148   0x0000003c   Code   RO           81    i.Chrono_Background  chrono.o
+    0x08000184   0x08000184   0x00000020   Code   RO           85    i.Chrono_Reset      chrono.o
+    0x080001a4   0x080001a4   0x0000001c   Code   RO           86    i.Chrono_Start      chrono.o
+    0x080001c0   0x080001c0   0x0000001c   Code   RO           87    i.Chrono_Stop       chrono.o
+    0x080001dc   0x080001dc   0x0000001a   Code   RO           89    i.LL_GPIO_IsInputPinSet  chrono.o
+    0x080001f6   0x080001f6   0x0000001c   Code   RO          408    i.LL_Init1msTick    stm32f1xx_ll_utils.o
+    0x08000212   0x08000212   0x00000002   PAD
+    0x08000214   0x08000214   0x0000000c   Code   RO          415    i.LL_SetSystemCoreClock  stm32f1xx_ll_utils.o
+    0x08000220   0x08000220   0x00000008   Code   RO          217    i.LL_TIM_ClearFlag_UPDATE  mytimer.o
+    0x08000228   0x08000228   0x0000000a   Code   RO          218    i.LL_TIM_DisableCounter  mytimer.o
+    0x08000232   0x08000232   0x0000000e   Code   RO          224    i.MyTimer_Start     mytimer.o
+    0x08000240   0x08000240   0x0000000c   Code   RO          225    i.MyTimer_Stop      mytimer.o
+    0x0800024c   0x0800024c   0x000000f0   Code   RO            4    i.SystemClock_Config  main.o
+    0x0800033c   0x0800033c   0x00000058   Code   RO          877    i.SystemInit        system_stm32f1xx.o
+    0x08000394   0x08000394   0x00000018   Code   RO          226    i.TIM1_UP_IRQHandler  mytimer.o
+    0x080003ac   0x080003ac   0x00000018   Code   RO          227    i.TIM2_IRQHandler   mytimer.o
+    0x080003c4   0x080003c4   0x00000018   Code   RO          228    i.TIM3_IRQHandler   mytimer.o
+    0x080003dc   0x080003dc   0x00000018   Code   RO          229    i.TIM4_IRQHandler   mytimer.o
+    0x080003f4   0x080003f4   0x0000000e   Code   RO          938    i.__scatterload_copy  mc_w.l(handlers.o)
+    0x08000402   0x08000402   0x00000002   Code   RO          939    i.__scatterload_null  mc_w.l(handlers.o)
+    0x08000404   0x08000404   0x0000000e   Code   RO          940    i.__scatterload_zeroinit  mc_w.l(handlers.o)
+    0x08000412   0x08000412   0x0000000c   Code   RO            6    i.main              main.o
+    0x0800041e   0x0800041e   0x00000002   PAD
+    0x08000420   0x08000420   0x00000020   Data   RO          936    Region$$Table       anon$$obj.o
 
 
-    Execution Region RW_IRAM1 (Exec base: 0x20000000, Load base: 0x08000a78, Size: 0x00000430, Max: 0x00005000, ABSOLUTE)
+    Execution Region RW_IRAM1 (Exec base: 0x20000000, Load base: 0x08000440, Size: 0x00000420, Max: 0x00005000, ABSOLUTE)
 
     Exec Addr    Load Addr    Size         Type   Attr      Idx    E Section Name        Object
 
-    0x20000000   0x08000a78   0x00000004   Data   RW            7    .data               main.o
-    0x20000004   0x08000a7c   0x00000004   PAD
-    0x20000008   0x08000a80   0x00000010   Data   RW          178    .data               accelerometer.o
-    0x20000018   0x08000a90   0x00000010   Data   RW          266    .data               mytimer.o
-    0x20000028   0x08000aa0   0x00000004   Data   RW          840    .data               system_stm32f1xx.o
-    0x2000002c   0x08000aa4   0x00000004   PAD
-    0x20000030        -       0x00000400   Zero   RW          871    STACK               startup_stm32f103xb.o
+    0x20000000   0x08000440   0x0000000c   Data   RW           90    .data               chrono.o
+    0x2000000c   0x0800044c   0x00000010   Data   RW          231    .data               mytimer.o
+    0x2000001c   0x0800045c   0x00000004   Data   RW          879    .data               system_stm32f1xx.o
+    0x20000020        -       0x00000400   Zero   RW          910    STACK               startup_stm32f103xb.o
 
 
 ==============================================================================
@@ -599,18 +552,17 @@ Image component sizes
 
       Code (inc. data)   RO Data    RW Data    ZI Data      Debug   Object Name
 
-       554         56          0         16          0      45455   accelerometer.o
-       268         18          0          4          0     356424   main.o
-       104         30          0         16          0      27113   mytimer.o
+       174         46          0         12          0      10806   chrono.o
+       252         14          0          0          0     354628   main.o
+       140         30          0         16          0      28564   mytimer.o
         36          8        236          0       1024        772   startup_stm32f103xb.o
-       678         94          0          0          0      38000   stm32f1xx_ll_adc.o
         40          6          0          0          0       2073   stm32f1xx_ll_utils.o
         88         18          0          4          0       1147   system_stm32f1xx.o
 
     ----------------------------------------------------------------------
-      1768        230        268         44       1028     470984   Object Totals
+       734        122        268         32       1024     397990   Object Totals
          0          0         32          0          0          0   (incl. Generated)
-         0          0          0          4          4          0   (incl. Padding)
+         4          0          0          0          0          0   (incl. Padding)
 
     ----------------------------------------------------------------------
 
@@ -626,27 +578,19 @@ Image component sizes
          8          4          0          0          0          0   entry9a.o
         30          0          0          0          0          0   handlers.o
         36          8          0          0          0         68   init.o
-         0          0          0          0          0          0   iusefp.o
-        30          0          0          0          0         68   llshl.o
-        32          0          0          0          0         68   llushr.o
-        48          0          0          0          0         68   cdrcmple.o
-       222          0          0          0          0        100   ddiv.o
-       186          0          0          0          0        176   depilogue.o
-        34          0          0          0          0         76   dflti.o
 
     ----------------------------------------------------------------------
-       644         16          0          0          0        624   Library Totals
-         6          0          0          0          0          0   (incl. Padding)
+        86         16          0          0          0         68   Library Totals
+         0          0          0          0          0          0   (incl. Padding)
 
     ----------------------------------------------------------------------
 
       Code (inc. data)   RO Data    RW Data    ZI Data      Debug   Library Name
 
-       148         16          0          0          0        204   mc_w.l
-       490          0          0          0          0        420   mf_w.l
+        86         16          0          0          0         68   mc_w.l
 
     ----------------------------------------------------------------------
-       644         16          0          0          0        624   Library Totals
+        86         16          0          0          0         68   Library Totals
 
     ----------------------------------------------------------------------
 
@@ -655,15 +599,15 @@ Image component sizes
 
       Code (inc. data)   RO Data    RW Data    ZI Data      Debug   
 
-      2412        246        268         44       1028     470408   Grand Totals
-      2412        246        268         44       1028     470408   ELF Image Totals
-      2412        246        268         44          0          0   ROM Totals
+       820        138        268         32       1024     397378   Grand Totals
+       820        138        268         32       1024     397378   ELF Image Totals
+       820        138        268         32          0          0   ROM Totals
 
 ==============================================================================
 
-    Total RO  Size (Code + RO Data)                 2680 (   2.62kB)
-    Total RW  Size (RW Data + ZI Data)              1072 (   1.05kB)
-    Total ROM Size (Code + RO Data + RW Data)       2724 (   2.66kB)
+    Total RO  Size (Code + RO Data)                 1088 (   1.06kB)
+    Total RW  Size (RW Data + ZI Data)              1056 (   1.03kB)
+    Total ROM Size (Code + RO Data + RW Data)       1120 (   1.09kB)
 
 ==============================================================================
 
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/Project_Simulateur.dep b/keil_project/MDK-ARM/NUCLEO-F103RB/Project_Simulateur.dep
index 1a242bd..75e56f5 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/Project_Simulateur.dep
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/Project_Simulateur.dep
@@ -1,6 +1,6 @@
 Dependencies for Project 'Project', Target 'Simulateur': (DO NOT MODIFY !)
 CompilerVersion: 5060750::V5.06 update 6 (build 750)::ARMCC
-F (../Src/main.c)(0x5FA8517B)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\main.o --omf_browse nucleo-f103rb\main.crf --depend nucleo-f103rb\main.d)
+F (../Src/main.c)(0x5FABFAC0)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\main.o --omf_browse nucleo-f103rb\main.crf --depend nucleo-f103rb\main.d)
 I (..\LLDrivers\inc\stm32f1xx_ll_rcc.h)(0x5F8402DF)
 I (..\Inc\stm32f1xx.h)(0x5F8402DF)
 I (..\Inc\stm32f103xb.h)(0x5F8402DF)
@@ -13,7 +13,6 @@ I (..\Inc\system_stm32f1xx.h)(0x5F8402DF)
 I (..\LLDrivers\inc\stm32f1xx_ll_utils.h)(0x5F8402E0)
 I (..\LLDrivers\inc\stm32f1xx_ll_system.h)(0x5F8402E0)
 I (..\Services\Chrono.h)(0x5F8402E0)
-I (..\Services\accelerometer.h)(0x5FA83AC2)
 F (..\Services\Chrono.c)(0x5F8402E0)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\chrono.o --omf_browse nucleo-f103rb\chrono.crf --depend nucleo-f103rb\chrono.d)
 I (..\Services\Chrono.h)(0x5F8402E0)
 I (..\Inc\stm32f103xb.h)(0x5F8402DF)
@@ -27,8 +26,9 @@ I (..\MyDrivers\MyTimer.h)(0x5F8402E0)
 I (..\LLDrivers\inc\stm32f1xx_ll_gpio.h)(0x5F8402DF)
 I (..\Inc\stm32f1xx.h)(0x5F8402DF)
 I (..\LLDrivers\inc\stm32f1xx_ll_bus.h)(0x5F8402DF)
-F (..\Services\accelerometer.c)(0x5FA99B30)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\accelerometer.o --omf_browse nucleo-f103rb\accelerometer.crf --depend nucleo-f103rb\accelerometer.d)
-I (..\LLDrivers\inc\stm32f1xx_ll_adc.h)(0x5F8402DF)
+F (..\Services\emetteur_rf.c)(0x5FAC025A)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\emetteur_rf.o --omf_browse nucleo-f103rb\emetteur_rf.crf --depend nucleo-f103rb\emetteur_rf.d)
+I (..\Services\emetteur_rf.h)(0x5FAC0257)
+I (..\LLDrivers\inc\stm32f1xx_ll_bus.h)(0x5F8402DF)
 I (..\Inc\stm32f1xx.h)(0x5F8402DF)
 I (..\Inc\stm32f103xb.h)(0x5F8402DF)
 I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\core_cm3.h)(0x5D25F326)
@@ -37,10 +37,9 @@ I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cms
 I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_compiler.h)(0x5D25F326)
 I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_armcc.h)(0x5D25F326)
 I (..\Inc\system_stm32f1xx.h)(0x5F8402DF)
-I (..\LLDrivers\inc\stm32f1xx_ll_bus.h)(0x5F8402DF)
-I (..\LLDrivers\inc\stm32f1xx_ll_rcc.h)(0x5F8402DF)
+I (..\LLDrivers\inc\stm32f1xx_ll_usart.h)(0x5F8402E0)
 I (..\LLDrivers\inc\stm32f1xx_ll_gpio.h)(0x5F8402DF)
-I (C:\Keil_v5\ARM\ARMCC\include\math.h)(0x5D9B3482)
+F (..\Services\emetteur_rf.h)(0x5FAC0257)()
 F (..\MyDrivers\MyTimer.c)(0x5F8402E0)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\mytimer.o --omf_browse nucleo-f103rb\mytimer.crf --depend nucleo-f103rb\mytimer.d)
 I (..\MyDrivers\MyTimer.h)(0x5F8402E0)
 I (..\Inc\stm32f103xb.h)(0x5F8402DF)
@@ -113,6 +112,19 @@ I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cms
 I (..\Inc\system_stm32f1xx.h)(0x5F8402DF)
 I (..\LLDrivers\inc\stm32f1xx_ll_bus.h)(0x5F8402DF)
 I (..\Inc\stm32_assert.h)(0x5F8402DF)
+F (..\LLDrivers\src\stm32f1xx_ll_usart.c)(0x5F8402E0)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\stm32f1xx_ll_usart.o --omf_browse nucleo-f103rb\stm32f1xx_ll_usart.crf --depend nucleo-f103rb\stm32f1xx_ll_usart.d)
+I (..\LLDrivers\inc\stm32f1xx_ll_usart.h)(0x5F8402E0)
+I (..\Inc\stm32f1xx.h)(0x5F8402DF)
+I (..\Inc\stm32f103xb.h)(0x5F8402DF)
+I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\core_cm3.h)(0x5D25F326)
+I (C:\Keil_v5\ARM\ARMCC\include\stdint.h)(0x5D9B3488)
+I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_version.h)(0x5D25F326)
+I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_compiler.h)(0x5D25F326)
+I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_armcc.h)(0x5D25F326)
+I (..\Inc\system_stm32f1xx.h)(0x5F8402DF)
+I (..\LLDrivers\inc\stm32f1xx_ll_rcc.h)(0x5F8402DF)
+I (..\LLDrivers\inc\stm32f1xx_ll_bus.h)(0x5F8402DF)
+I (..\Inc\stm32_assert.h)(0x5F8402DF)
 F (../readme.txt)(0x5F8402E0)()
 F (../Src/system_stm32f1xx.c)(0x5F8402E0)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\system_stm32f1xx.o --omf_browse nucleo-f103rb\system_stm32f1xx.crf --depend nucleo-f103rb\system_stm32f1xx.d)
 I (..\Inc\stm32f1xx.h)(0x5F8402DF)
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/chrono.o b/keil_project/MDK-ARM/NUCLEO-F103RB/chrono.o
index 96d9dc4..b1d2231 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/chrono.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/chrono.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/emetteur_rf.crf b/keil_project/MDK-ARM/NUCLEO-F103RB/emetteur_rf.crf
new file mode 100644
index 0000000..60306d9
Binary files /dev/null and b/keil_project/MDK-ARM/NUCLEO-F103RB/emetteur_rf.crf differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/emetteur_rf.d b/keil_project/MDK-ARM/NUCLEO-F103RB/emetteur_rf.d
new file mode 100644
index 0000000..c1fcf85
--- /dev/null
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/emetteur_rf.d
@@ -0,0 +1,13 @@
+nucleo-f103rb\emetteur_rf.o: ..\Services\emetteur_rf.c
+nucleo-f103rb\emetteur_rf.o: ..\Services\emetteur_rf.h
+nucleo-f103rb\emetteur_rf.o: ..\LLDrivers\inc\stm32f1xx_ll_bus.h
+nucleo-f103rb\emetteur_rf.o: ..\Inc\stm32f1xx.h
+nucleo-f103rb\emetteur_rf.o: ..\Inc\stm32f103xb.h
+nucleo-f103rb\emetteur_rf.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\core_cm3.h
+nucleo-f103rb\emetteur_rf.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdint.h
+nucleo-f103rb\emetteur_rf.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_version.h
+nucleo-f103rb\emetteur_rf.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_compiler.h
+nucleo-f103rb\emetteur_rf.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_armcc.h
+nucleo-f103rb\emetteur_rf.o: ..\Inc\system_stm32f1xx.h
+nucleo-f103rb\emetteur_rf.o: ..\LLDrivers\inc\stm32f1xx_ll_usart.h
+nucleo-f103rb\emetteur_rf.o: ..\LLDrivers\inc\stm32f1xx_ll_gpio.h
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/emetteur_rf.o b/keil_project/MDK-ARM/NUCLEO-F103RB/emetteur_rf.o
new file mode 100644
index 0000000..2796cea
Binary files /dev/null and b/keil_project/MDK-ARM/NUCLEO-F103RB/emetteur_rf.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/main.crf b/keil_project/MDK-ARM/NUCLEO-F103RB/main.crf
index 53bccd4..d236275 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/main.crf and b/keil_project/MDK-ARM/NUCLEO-F103RB/main.crf differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/main.d b/keil_project/MDK-ARM/NUCLEO-F103RB/main.d
index 5d07c5e..e28d5e5 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/main.d
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/main.d
@@ -11,4 +11,3 @@ nucleo-f103rb\main.o: ..\Inc\system_stm32f1xx.h
 nucleo-f103rb\main.o: ..\LLDrivers\inc\stm32f1xx_ll_utils.h
 nucleo-f103rb\main.o: ..\LLDrivers\inc\stm32f1xx_ll_system.h
 nucleo-f103rb\main.o: ..\Services\Chrono.h
-nucleo-f103rb\main.o: ..\Services\accelerometer.h
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/main.o b/keil_project/MDK-ARM/NUCLEO-F103RB/main.o
index a381b91..f1d4624 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/main.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/main.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/mytimer.o b/keil_project/MDK-ARM/NUCLEO-F103RB/mytimer.o
index a67787a..c026c08 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/mytimer.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/mytimer.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_adc.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_adc.o
index 1341d85..d982861 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_adc.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_adc.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_gpio.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_gpio.o
index 3d189b6..33a0e04 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_gpio.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_gpio.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_rcc.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_rcc.o
index ef2ea4c..8a50813 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_rcc.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_rcc.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_tim.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_tim.o
index 7fae8c5..cfad362 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_tim.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_tim.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_usart.crf b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_usart.crf
new file mode 100644
index 0000000..5fd7b03
Binary files /dev/null and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_usart.crf differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_usart.d b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_usart.d
index f40e410..ab9b260 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_usart.d
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_usart.d
@@ -1,2 +1,13 @@
-nucleo-f103rb\stm32f1xx_ll_usart.o: ../../../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_usart.c
-nucleo-f103rb\stm32f1xx_ll_usart.o: ../../../../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_ll_usart.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: ..\LLDrivers\src\stm32f1xx_ll_usart.c
+nucleo-f103rb\stm32f1xx_ll_usart.o: ..\LLDrivers\inc\stm32f1xx_ll_usart.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: ..\Inc\stm32f1xx.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: ..\Inc\stm32f103xb.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\core_cm3.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdint.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_version.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_compiler.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_armcc.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: ..\Inc\system_stm32f1xx.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: ..\LLDrivers\inc\stm32f1xx_ll_rcc.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: ..\LLDrivers\inc\stm32f1xx_ll_bus.h
+nucleo-f103rb\stm32f1xx_ll_usart.o: ..\Inc\stm32_assert.h
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_usart.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_usart.o
new file mode 100644
index 0000000..e41dacd
Binary files /dev/null and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_usart.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_utils.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_utils.o
index e90b609..11c8874 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_utils.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_utils.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/system_stm32f1xx.o b/keil_project/MDK-ARM/NUCLEO-F103RB/system_stm32f1xx.o
index e120bdc..5810367 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/system_stm32f1xx.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/system_stm32f1xx.o differ
diff --git a/keil_project/MDK-ARM/Project.uvguix.momof b/keil_project/MDK-ARM/Project.uvguix.momof
index 6550859..12a78c0 100644
--- a/keil_project/MDK-ARM/Project.uvguix.momof
+++ b/keil_project/MDK-ARM/Project.uvguix.momof
@@ -6,7 +6,7 @@
   <Header>### uVision Project, (C) Keil Software</Header>
 
   <PrjGuiSettings>
-    <LastAddFilePath>C:\Users\momof\Documents\projet_voilier\keil_project\Services</LastAddFilePath>
+    <LastAddFilePath>C:\Users\momof\Documents\projet_voilier\keil_project\LLDrivers\src</LastAddFilePath>
   </PrjGuiSettings>
 
   <ViewPool>
@@ -123,8 +123,8 @@
     <MDIClientArea>
       <RegID>0</RegID>
       <MDITabState>
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       </MDITabState>
     </MDIClientArea>
     <ViewEx>
@@ -147,7 +147,7 @@
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
-          <Data>F483FFFF5383FFFF8E88FFFFE683FFFF</Data>
+          <Data>F4000000700000008E05000003010000</Data>
         </RectRecentFloat>
       </Window>
       <Window>
@@ -1812,14 +1812,14 @@
       </Window>
       <DockMan>
         <Len>3312</Len>
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         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
         <PaneID>0</PaneID>
       </Doc>
       <Doc>
-        <Name>..\Services\recpeteurHF_input.c</Name>
-        <ColumnNumber>1</ColumnNumber>
+        <Name>..\Services\emetteur_rf.h</Name>
+        <ColumnNumber>6</ColumnNumber>
         <TopLine>1</TopLine>
-        <CurrentLine>4</CurrentLine>
-        <Folding>1</Folding>
-        <ContractedFolders></ContractedFolders>
-        <PaneID>0</PaneID>
-      </Doc>
-      <Doc>
-        <Name>..\Services\recepteurHF_input.h</Name>
-        <ColumnNumber>0</ColumnNumber>
-        <TopLine>1</TopLine>
-        <CurrentLine>6</CurrentLine>
+        <CurrentLine>14</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
         <PaneID>0</PaneID>
diff --git a/keil_project/MDK-ARM/Project.uvoptx b/keil_project/MDK-ARM/Project.uvoptx
index b007196..610175f 100644
--- a/keil_project/MDK-ARM/Project.uvoptx
+++ b/keil_project/MDK-ARM/Project.uvoptx
@@ -542,24 +542,24 @@
     <File>
       <GroupNumber>2</GroupNumber>
       <FileNumber>3</FileNumber>
-      <FileType>5</FileType>
+      <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\Services\recepteurHF_input.h</PathWithFileName>
-      <FilenameWithoutPath>recepteurHF_input.h</FilenameWithoutPath>
+      <PathWithFileName>..\Services\emetteur_rf.c</PathWithFileName>
+      <FilenameWithoutPath>emetteur_rf.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
     <File>
       <GroupNumber>2</GroupNumber>
       <FileNumber>4</FileNumber>
-      <FileType>1</FileType>
+      <FileType>5</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\Services\recpeteurHF_input.c</PathWithFileName>
-      <FilenameWithoutPath>recpeteurHF_input.c</FilenameWithoutPath>
+      <PathWithFileName>..\Services\emetteur_rf.h</PathWithFileName>
+      <FilenameWithoutPath>emetteur_rf.h</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
@@ -651,6 +651,18 @@
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
+    <File>
+      <GroupNumber>4</GroupNumber>
+      <FileNumber>11</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\LLDrivers\src\stm32f1xx_ll_usart.c</PathWithFileName>
+      <FilenameWithoutPath>stm32f1xx_ll_usart.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
   </Group>
 
   <Group>
@@ -661,7 +673,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>5</GroupNumber>
-      <FileNumber>11</FileNumber>
+      <FileNumber>12</FileNumber>
       <FileType>5</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -681,7 +693,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>6</GroupNumber>
-      <FileNumber>12</FileNumber>
+      <FileNumber>13</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -701,7 +713,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>7</GroupNumber>
-      <FileNumber>13</FileNumber>
+      <FileNumber>14</FileNumber>
       <FileType>2</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
diff --git a/keil_project/MDK-ARM/Project.uvprojx b/keil_project/MDK-ARM/Project.uvprojx
index aa5df11..e4db6e8 100644
--- a/keil_project/MDK-ARM/Project.uvprojx
+++ b/keil_project/MDK-ARM/Project.uvprojx
@@ -398,14 +398,14 @@
               <FilePath>..\Services\Chrono.c</FilePath>
             </File>
             <File>
-              <FileName>recepteurHF_input.h</FileName>
-              <FileType>5</FileType>
-              <FilePath>..\Services\recepteurHF_input.h</FilePath>
+              <FileName>emetteur_rf.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Services\emetteur_rf.c</FilePath>
             </File>
             <File>
-              <FileName>recpeteurHF_input.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\Services\recpeteurHF_input.c</FilePath>
+              <FileName>emetteur_rf.h</FileName>
+              <FileType>5</FileType>
+              <FilePath>..\Services\emetteur_rf.h</FilePath>
             </File>
           </Files>
         </Group>
@@ -447,6 +447,11 @@
               <FileType>1</FileType>
               <FilePath>..\LLDrivers\src\stm32f1xx_ll_adc.c</FilePath>
             </File>
+            <File>
+              <FileName>stm32f1xx_ll_usart.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\LLDrivers\src\stm32f1xx_ll_usart.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -876,14 +881,14 @@
               <FilePath>..\Services\Chrono.c</FilePath>
             </File>
             <File>
-              <FileName>recepteurHF_input.h</FileName>
-              <FileType>5</FileType>
-              <FilePath>..\Services\recepteurHF_input.h</FilePath>
+              <FileName>emetteur_rf.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Services\emetteur_rf.c</FilePath>
             </File>
             <File>
-              <FileName>recpeteurHF_input.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\Services\recpeteurHF_input.c</FilePath>
+              <FileName>emetteur_rf.h</FileName>
+              <FileType>5</FileType>
+              <FilePath>..\Services\emetteur_rf.h</FilePath>
             </File>
           </Files>
         </Group>
@@ -925,6 +930,11 @@
               <FileType>1</FileType>
               <FilePath>..\LLDrivers\src\stm32f1xx_ll_adc.c</FilePath>
             </File>
+            <File>
+              <FileName>stm32f1xx_ll_usart.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\LLDrivers\src\stm32f1xx_ll_usart.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
diff --git a/keil_project/MDK-ARM/recepteurHF_input.c b/keil_project/MDK-ARM/recepteurHF_input.c
deleted file mode 100644
index e69de29..0000000
diff --git a/keil_project/Services/emetteur_rf.c b/keil_project/Services/emetteur_rf.c
new file mode 100644
index 0000000..c18d352
--- /dev/null
+++ b/keil_project/Services/emetteur_rf.c
@@ -0,0 +1,64 @@
+#include "emetteur_rf.h"
+
+void emetteur_rf_init(USART_TypeDef * uart_port){
+
+	LL_USART_InitTypeDef My_LL_Usart_Init_Struct;
+	
+	if (uart_port==USART1) {
+		LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_USART1);
+		LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
+		LL_GPIO_InitTypeDef tx;
+	  tx.Mode = LL_GPIO_MODE_ALTERNATE;
+	  tx.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
+	  tx.Speed = LL_GPIO_SPEED_FREQ_LOW;
+	  tx.Pin = LL_GPIO_PIN_9;
+	  LL_GPIO_Init(GPIOA, &tx);
+	}
+	if (uart_port==USART2){ 
+		LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_USART2);
+		LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
+	  LL_GPIO_InitTypeDef tx;
+	  tx.Mode = LL_GPIO_MODE_ALTERNATE;
+	  tx.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
+		tx.Pull = LL_GPIO_PULL_UP;
+	  tx.Speed = LL_GPIO_SPEED_FREQ_LOW;
+	  tx.Pin = LL_GPIO_PIN_2;
+	  LL_GPIO_Init(GPIOA, &tx);
+	}
+	if (uart_port==USART3){
+		LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_USART3);
+		LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOC);
+		LL_GPIO_InitTypeDef tx;
+	  tx.Mode = LL_GPIO_MODE_ALTERNATE;
+	  tx.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
+		tx.Pull = LL_GPIO_PULL_UP;
+	  tx.Speed = LL_GPIO_SPEED_FREQ_LOW;
+	  tx.Pin = LL_GPIO_PIN_10;
+	  LL_GPIO_Init(GPIOC, &tx);
+	}
+
+	My_LL_Usart_Init_Struct.BaudRate = 9600;
+	My_LL_Usart_Init_Struct.DataWidth = LL_USART_DATAWIDTH_8B ;
+	My_LL_Usart_Init_Struct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
+	My_LL_Usart_Init_Struct.OverSampling = LL_USART_OVERSAMPLING_16;
+	My_LL_Usart_Init_Struct.Parity = LL_USART_PARITY_NONE;
+	My_LL_Usart_Init_Struct.StopBits = LL_USART_STOPBITS_1;
+	My_LL_Usart_Init_Struct.TransferDirection = LL_USART_DIRECTION_TX_RX ;
+	
+	LL_USART_Init(uart_port,&My_LL_Usart_Init_Struct);
+	LL_USART_Enable(uart_port);
+	
+	/*int periph_speed;
+	if (uart_port==USART1) periph_speed = 36000000;
+	if (uart_port==USART2) periph_speed = 72000000;
+	if (uart_port==USART3) periph_speed = 72000000;
+
+	LL_USART_SetBaudRate(uart_port, periph_speed, baudrate);
+*/}
+
+void rec_send_bytes(USART_TypeDef * uart_port,char* buf, int len){
+	for(int i = 0; i < len; i++){
+		LL_USART_TransmitData8(uart_port, buf[i]);
+		while(!LL_USART_IsActiveFlag_TXE(uart_port));
+	}	
+}
diff --git a/keil_project/Services/emetteur_rf.h b/keil_project/Services/emetteur_rf.h
new file mode 100644
index 0000000..0650cac
--- /dev/null
+++ b/keil_project/Services/emetteur_rf.h
@@ -0,0 +1,14 @@
+#ifndef RECEPTEURHF_INPUT_H
+#define RECEPTEURHF_INPUT_H
+
+
+#include "stm32f1xx_ll_bus.h"
+#include "stm32f1xx_ll_usart.h"
+#include "stm32f1xx_ll_gpio.h"
+
+void emetteur_rf_init(USART_TypeDef * uart_port);
+void rec_send_bytes(USART_TypeDef * uart_port,char* buf, int len);
+
+
+
+#endif
\ No newline at end of file
diff --git a/keil_project/Services/recepteurHF_input.h b/keil_project/Services/recepteurHF_input.h
deleted file mode 100644
index 947e770..0000000
--- a/keil_project/Services/recepteurHF_input.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef RECEPTEURHF_INPUT_H
-#define RECEPTEURHF_INPUT_H
-
-
-
-void recepteurHF_input_init(void);
-
-
-
-#endif
\ No newline at end of file
diff --git a/keil_project/Services/recpeteurHF_input.c b/keil_project/Services/recpeteurHF_input.c
deleted file mode 100644
index 0ca1ac2..0000000
--- a/keil_project/Services/recpeteurHF_input.c
+++ /dev/null
@@ -1,4 +0,0 @@
-#include "recepteurHF_input.h"
-
-void recepteurHF_input_init(void){
-}
\ No newline at end of file
