diff --git a/Drivers/Inc/GPIO.h b/Drivers/Inc/GPIO.h
index 2bd5695..d84a12b 100644
--- a/Drivers/Inc/GPIO.h
+++ b/Drivers/Inc/GPIO.h
@@ -25,5 +25,6 @@ int MyGPIO_Read ( GPIO_TypeDef * GPIO , char GPIO_Pin ) ; // renvoie 0 ou autre
 void MyGPIO_Set ( GPIO_TypeDef * GPIO , char GPIO_Pin ) ;
 void MyGPIO_Reset ( GPIO_TypeDef * GPIO , char GPIO_Pin ) ;
 void MyGPIO_Toggle ( GPIO_TypeDef * GPIO , char GPIO_Pin ) ;
+void MyGPIO_ActiveIT (GPIO_TypeDef * GPIO, char GPIO_Pin, char Prio, void (*IT_function)(void))
 
 #endif
diff --git a/Drivers/Src/GPIO.c b/Drivers/Src/GPIO.c
index a6b0668..e7b522f 100644
--- a/Drivers/Src/GPIO.c
+++ b/Drivers/Src/GPIO.c
@@ -1,5 +1,8 @@
 #include "GPIO.h"
 
+void (*gpio_ptr_func)(void);
+// interruption NVIC p197 RM8  et   ISER p119
+
 void MyGPIO_Init ( MyGPIO_Struct_TypeDef * GPIOStructPtr )
 {
 	if(GPIOStructPtr->GPIO==GPIOA)
@@ -68,3 +71,40 @@ void MyGPIO_Toggle ( GPIO_TypeDef * GPIO , char GPIO_Pin )
 	}
 }
 
+void MyGPIO_ActiveIT (GPIO_TypeDef * GPIO, char GPIO_Pin, char Prio, void (*IT_function)(void))		//p210
+{
+	RCC->APB2ENR |= RCC_APB2ENR_AFIOEN;
+	if (GPIO==GPIOA)
+	{
+		AFIO->EXTICR[0] |= (AFIO_EXTICR1_EXTI0_PA << (4*GPIO_Pin));
+	}
+	else if (GPIO==GPIOB)
+	{
+		AFIO->EXTICR[0] |= (AFIO_EXTICR1_EXTI0_PB << (4*GPIO_Pin));
+	}
+	else if (GPIO==GPIOC)
+	{
+		AFIO->EXTICR[0] |= (AFIO_EXTICR1_EXTI0_PC << (4*GPIO_Pin));
+	}
+	else if (GPIO==GPIOD)
+	{
+		AFIO->EXTICR[0] |= (AFIO_EXTICR1_EXTI0_PD << (4*GPIO_Pin));
+	}
+	// manque ligne pour activer l'interruption
+	NVIC->ISER[0] |= 0x01<<EXTI0_IRQn;
+	NVIC->IP[EXTI0_IRQn] |= Prio << 4;
+}
+
+void EXTI0_IRQHandler(void)
+{
+	if (EXTI->RTSR)	//on test si RTSR est différent de 0
+	{
+		if(gpio_ptr_func!=0)
+		{
+			(*gpio_ptr_func)();
+		}
+	}
+	EXTI->RTSR &=0xFFFFF; 
+	
+	//reset flag
+}
diff --git a/Drivers/Src/TIMER.c b/Drivers/Src/TIMER.c
index 76e67aa..e1aa544 100644
--- a/Drivers/Src/TIMER.c
+++ b/Drivers/Src/TIMER.c
@@ -61,6 +61,12 @@ void MyTimer_ActiveIT (TIM_TypeDef * Timer, char Prio, void (*IT_function)(void)
 	
 }
 
+void init_encoder_timer(TIM_TypeDef * Timer)  //voir page 391
+{
+	Timer->SMCR = 0x1;
+	
+}
+
 void TIM2_IRQHandler (void)
 {
 	if(tim_ptr2_func!=0)
diff --git a/Drivers/Src/UART.c b/Drivers/Src/UART.c
index b84c1a6..0aa7a02 100644
--- a/Drivers/Src/UART.c
+++ b/Drivers/Src/UART.c
@@ -2,7 +2,6 @@
 #include "GPIO.h"
 
 void (*uart_rx_ptr_func)(void);
-void (*uart_tx_ptr_func)(void);
 char buffer[1000]={0};
 
 void MyUART_init(void)		// que pour du 9600 bauds
diff --git a/Projet_voile/Includes/Girouette.h b/Projet_voile/Includes/Girouette.h
new file mode 100644
index 0000000..d3eb84e
--- /dev/null
+++ b/Projet_voile/Includes/Girouette.h
@@ -0,0 +1,8 @@
+#ifndef MYGIROUETTE_H
+#define MYGIROUETTE_H
+#include "stm32f10x.h"
+#include "GPIO.h"
+
+
+
+#endif
diff --git a/Projet_voile/Sources/Girouette.c b/Projet_voile/Sources/Girouette.c
new file mode 100644
index 0000000..634c02e
--- /dev/null
+++ b/Projet_voile/Sources/Girouette.c
@@ -0,0 +1,13 @@
+#include "Girouette.h"
+
+int bordage(void){
+	/*MyGPIO_Struct_TypeDef signalA = (GPIOC, 6, In_PullDown);
+	MyGPIO_Struct_TypeDef signalB = (GPIOC, 7, In_PullDown);
+	MyGPIO_Struct_TypeDef signalI = (GPIOC, 8, In_PullDown);
+	
+	MyGPIO_Init(&signalA);
+	MyGPIO_Init(&signalB);
+	MyGPIO_Init(&signalI);*/
+	
+	
+}
\ No newline at end of file
diff --git a/Projet_voile/TP1.uvoptx b/Projet_voile/TP1.uvoptx
index 4d68f84..bc6d311 100644
--- a/Projet_voile/TP1.uvoptx
+++ b/Projet_voile/TP1.uvoptx
@@ -144,16 +144,16 @@
           <Type>0</Type>
           <LineNumber>15</LineNumber>
           <EnabledFlag>1</EnabledFlag>
-          <Address>134219150</Address>
+          <Address>0</Address>
           <ByteObject>0</ByteObject>
           <HtxType>0</HtxType>
           <ManyObjects>0</ManyObjects>
           <SizeOfObject>0</SizeOfObject>
           <BreakByAccess>0</BreakByAccess>
-          <BreakIfRCount>1</BreakIfRCount>
+          <BreakIfRCount>0</BreakIfRCount>
           <Filename>.\Sources\Principal.c</Filename>
           <ExecCommand></ExecCommand>
-          <Expression>\\TP1\Sources/Principal.c\15</Expression>
+          <Expression></Expression>
         </Bp>
       </Breakpoint>
       <WatchWindow1>
@@ -194,9 +194,9 @@
       <DebugFlag>
         <trace>0</trace>
         <periodic>1</periodic>
-        <aLwin>1</aLwin>
+        <aLwin>0</aLwin>
         <aCover>0</aCover>
-        <aSer1>1</aSer1>
+        <aSer1>0</aSer1>
         <aSer2>0</aSer2>
         <aPa>0</aPa>
         <viewmode>1</viewmode>
@@ -449,7 +449,19 @@
       <GroupNumber>1</GroupNumber>
       <FileNumber>2</FileNumber>
       <FileType>1</FileType>
-      <tvExp>0</tvExp>
+      <tvExp>1</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>.\Sources\Girouette.c</PathWithFileName>
+      <FilenameWithoutPath>Girouette.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>1</GroupNumber>
+      <FileNumber>3</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>1</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
       <PathWithFileName>..\DRIVERS\Src\GPIO.c</PathWithFileName>
@@ -459,9 +471,9 @@
     </File>
     <File>
       <GroupNumber>1</GroupNumber>
-      <FileNumber>3</FileNumber>
+      <FileNumber>4</FileNumber>
       <FileType>1</FileType>
-      <tvExp>0</tvExp>
+      <tvExp>1</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
       <PathWithFileName>..\Drivers\Src\TIMER.c</PathWithFileName>
@@ -471,9 +483,9 @@
     </File>
     <File>
       <GroupNumber>1</GroupNumber>
-      <FileNumber>4</FileNumber>
+      <FileNumber>5</FileNumber>
       <FileType>1</FileType>
-      <tvExp>0</tvExp>
+      <tvExp>1</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
       <PathWithFileName>..\Drivers\Src\ADC.c</PathWithFileName>
@@ -483,9 +495,9 @@
     </File>
     <File>
       <GroupNumber>1</GroupNumber>
-      <FileNumber>5</FileNumber>
+      <FileNumber>6</FileNumber>
       <FileType>1</FileType>
-      <tvExp>0</tvExp>
+      <tvExp>1</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
       <PathWithFileName>..\Drivers\Src\UART.c</PathWithFileName>
diff --git a/Projet_voile/TP1.uvprojx b/Projet_voile/TP1.uvprojx
index 3755d44..e03a12f 100644
--- a/Projet_voile/TP1.uvprojx
+++ b/Projet_voile/TP1.uvprojx
@@ -339,7 +339,7 @@
               <MiscControls></MiscControls>
               <Define></Define>
               <Undefine></Undefine>
-              <IncludePath>..\Drivers\Inc</IncludePath>
+              <IncludePath>..\Drivers\Inc;.\Includes</IncludePath>
             </VariousControls>
           </Cads>
           <Aads>
@@ -388,6 +388,11 @@
               <FileType>1</FileType>
               <FilePath>.\Sources\Principal.c</FilePath>
             </File>
+            <File>
+              <FileName>Girouette.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>.\Sources\Girouette.c</FilePath>
+            </File>
             <File>
               <FileName>GPIO.c</FileName>
               <FileType>1</FileType>
@@ -800,6 +805,11 @@
               <FileType>1</FileType>
               <FilePath>.\Sources\Principal.c</FilePath>
             </File>
+            <File>
+              <FileName>Girouette.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>.\Sources\Girouette.c</FilePath>
+            </File>
             <File>
               <FileName>GPIO.c</FileName>
               <FileType>1</FileType>