diff --git a/soft/PjtKEIL_StepDeb_2/BacASable.uvoptx b/soft/PjtKEIL_StepDeb_2/BacASable.uvoptx
index f1315bb..db3e892 100644
--- a/soft/PjtKEIL_StepDeb_2/BacASable.uvoptx
+++ b/soft/PjtKEIL_StepDeb_2/BacASable.uvoptx
@@ -10,7 +10,7 @@
     <aExt>*.s*; *.src; *.a*</aExt>
     <oExt>*.obj; *.o</oExt>
     <lExt>*.lib</lExt>
-    <tExt>*.txt; *.h; *.inc</tExt>
+    <tExt>*.txt; *.h; *.inc; *.md</tExt>
     <pExt>*.plm</pExt>
     <CppX>*.cpp</CppX>
     <nMigrate>0</nMigrate>
@@ -75,7 +75,7 @@
       <OPTFL>
         <tvExp>1</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>1</IsCurrentTarget>
+        <IsCurrentTarget>0</IsCurrentTarget>
       </OPTFL>
       <CpuCode>18</CpuCode>
       <DebugOpt>
@@ -267,7 +267,7 @@
       <OPTFL>
         <tvExp>1</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>0</IsCurrentTarget>
+        <IsCurrentTarget>1</IsCurrentTarget>
       </OPTFL>
       <CpuCode>18</CpuCode>
       <DebugOpt>
diff --git a/soft/PjtKEIL_StepDeb_2/BacASable.uvprojx b/soft/PjtKEIL_StepDeb_2/BacASable.uvprojx
index d99d0f0..f01d9e2 100644
--- a/soft/PjtKEIL_StepDeb_2/BacASable.uvprojx
+++ b/soft/PjtKEIL_StepDeb_2/BacASable.uvprojx
@@ -10,7 +10,7 @@
       <TargetName>Simu</TargetName>
       <ToolsetNumber>0x4</ToolsetNumber>
       <ToolsetName>ARM-ADS</ToolsetName>
-      <pCCUsed>5060750::V5.06 update 6 (build 750)::.\ARMCC</pCCUsed>
+      <pCCUsed>5060960::V5.06 update 7 (build 960)::.\ARMCC</pCCUsed>
       <uAC6>0</uAC6>
       <TargetOption>
         <TargetCommonOption>
@@ -424,7 +424,7 @@
       <TargetName>CibleSondeKEIL</TargetName>
       <ToolsetNumber>0x4</ToolsetNumber>
       <ToolsetName>ARM-ADS</ToolsetName>
-      <pCCUsed>5060750::V5.06 update 6 (build 750)::.\ARMCC</pCCUsed>
+      <pCCUsed>5060960::V5.06 update 7 (build 960)::.\ARMCC</pCCUsed>
       <uAC6>0</uAC6>
       <TargetOption>
         <TargetCommonOption>
@@ -1338,11 +1338,6 @@
     <Layers>
       <Layer>
         <LayName>&lt;Project Info&gt;</LayName>
-        <LayDesc></LayDesc>
-        <LayUrl></LayUrl>
-        <LayKeys></LayKeys>
-        <LayCat></LayCat>
-        <LayLic></LayLic>
         <LayTarg>0</LayTarg>
         <LayPrjMark>1</LayPrjMark>
       </Layer>
diff --git a/soft/PjtKEIL_StepDeb_2/Src/Cligno.s b/soft/PjtKEIL_StepDeb_2/Src/Cligno.s
index 8a75b7a..785a6a1 100644
--- a/soft/PjtKEIL_StepDeb_2/Src/Cligno.s
+++ b/soft/PjtKEIL_StepDeb_2/Src/Cligno.s
@@ -1,6 +1,6 @@
 	PRESERVE8
 	THUMB   
-		
+	include Driver/DriverJeuLaser.inc
 
 ; ====================== zone de réservation de données,  ======================================
 ;Section RAM (read only) :
@@ -10,7 +10,7 @@
 ;Section RAM (read write):
 	area    maram,data,readwrite
 		
-
+FlagCligno dcb 1
 	
 ; ===============================================================================================
 	
@@ -20,11 +20,32 @@
 ;Section ROM code (read only) :		
 	area    moncode,code,readonly
 ; écrire le code ici		
+	EXPORT timer_callback
+
+timer_callback proc
+	
+	push {lr}
+	ldr r0,=FlagCligno
+	ldr r1,[r0]
+	cbz r1, zero
+	mov r1,#0
+	str r1,[r0]
+	mov r0,#1
+	bl GPIOB_Set
+
+	pop {pc}
+
+	
+zero
+	mov r1,#1
+	str r1,[r0]
+	mov r0,#1
+	bl GPIOB_Clear
+	
+	pop {pc}
+
+	
+	endp
 
 
-
-
-
-		
-		
 	END	
\ No newline at end of file
diff --git a/soft/PjtKEIL_StepDeb_2/Src/principal.c b/soft/PjtKEIL_StepDeb_2/Src/principal.c
index 4d726a1..4bc2e06 100644
--- a/soft/PjtKEIL_StepDeb_2/Src/principal.c
+++ b/soft/PjtKEIL_StepDeb_2/Src/principal.c
@@ -2,7 +2,7 @@
 
 #include "DriverJeuLaser.h"
 
-void timer_callback(void);
+extern void timer_callback(void);
 
 int main(void)
 {
@@ -17,8 +17,8 @@ CLOCK_Configure();
 // configuration du Timer 4 en débordement 100ms
 	
 //** Placez votre code là ** // 
-	
-	
+Timer_1234_Init_ff(TIM4, 7200000);
+Active_IT_Debordement_Timer(TIM4, 2, timer_callback);
 	
 // Activation des interruptions issues du Timer 4
 // Association de la fonction à exécuter lors de l'interruption : timer_callback
@@ -30,7 +30,7 @@ CLOCK_Configure();
 	
 // configuration de PortB.1 (PB1) en sortie push-pull
 GPIO_Configure(GPIOB, 1, OUTPUT, OUTPUT_PPULL);
-	
+
 	
 	
 
@@ -42,7 +42,8 @@ while	(1)
 	}
 }
 
-char FlagCligno;
+
+/*char FlagCligno;
 
 void timer_callback(void)
 {
@@ -58,4 +59,4 @@ void timer_callback(void)
 	}
 		
 }
-
+*/