diff --git a/soft/PjtKEIL_StepSon/Src/GestionSon.s b/soft/PjtKEIL_StepSon/Src/GestionSon.s
index 495ae23..edcfd13 100644
--- a/soft/PjtKEIL_StepSon/Src/GestionSon.s
+++ b/soft/PjtKEIL_StepSon/Src/GestionSon.s
@@ -1,6 +1,11 @@
 	PRESERVE8
 	THUMB   
+	extern Son
+	extern LongueurSon
 	export CallbackSon
+	export SortieSon
+	export Index
+	include ../Driver/DriverJeuLaser.inc
 
 ; ====================== zone de réservation de données,  ======================================
 ;Section RAM (read only) :
@@ -9,31 +14,65 @@
 
 ;Section RAM (read write):
 	area    maram,data,readwrite
-		
 
 SortieSon dcd 0x0000 
-Index dcd 0
+Index dcd 0x0000
 ; ===============================================================================================
 	
 
+;Si Indice<LongueurSon
+;{
+;R0<-Son[Index]
+;R0=R0+32768
+;R0=R0/92
+;Sortir la valeur PWM en fonction de R0
+;Indice++
+;}
 
+
+
+;On place l'adresse de Son dans un registre
+;On place la valeur à cette adresse dans un deuxième registre
+;On lui ajoute 32768 pour se placer dans l'intervalle [0,65535]
+;On divise par 92 pour se placer dans l'intervalle [0,712]
+;On place le résultat dans SortieSon
+;On incrémente l'indice du tableau Son de 16 bits
 		
 ;Section ROM code (read only) :		
 	area    moncode,code,readonly
 ; écrire le code ici		
 
 CallbackSon proc
-	; 
-	ldrh r2, Son
-	ldrh r3, Index
-	ldrh r1, [r2,r3]
+	;
+;Si Indice<LongueurSon
+;{
+	push {lr}
+	ldr r0, =LongueurSon
+	ldr r1, [r0]
+	ldr r3,=Index
+	ldr r4,[r3]
+	cmp r4,r1
+	bge Depassement
+	;R1<-Son[Index]
+	ldr r2,=Son	;on place l'adresse de Son dans un registre
+	ldrsh r1, [r2,r4,lsl #1]
+	;R1=R1+32768
 	add r1, #32768
+	;R0=R0/92
 	mov r0, #92
 	udiv r1, r0
-	strh r1, SortieSon
-	add r3, #16
-	strh r3, Index
-	bx lr
+	;Sortir la valeur PWM en fonction de R0
+	;ldr r5, =SortieSon
+	str r1, [r0]
+	bl PWM_Set_Value_TIM3_Ch3
+	;Indice++
+	add r4, #1
+	str r4,[r3]
+	pop {pc}
+;}
+
+Depassement
+	pop {pc}
 	endp
 		
 	END	
\ No newline at end of file
diff --git a/soft/PjtKEIL_StepSon/Src/principal.c b/soft/PjtKEIL_StepSon/Src/principal.c
index 5c5e967..67bfcfd 100644
--- a/soft/PjtKEIL_StepSon/Src/principal.c
+++ b/soft/PjtKEIL_StepSon/Src/principal.c
@@ -3,6 +3,8 @@
 #include "DriverJeuLaser.h"
 
 
+extern void CallbackSon(void);
+
 
 int main(void)
 {
@@ -15,10 +17,9 @@ int main(void)
 CLOCK_Configure();
 
 	Timer_1234_Init_ff(TIM4,6552);
-	Timer_1234_Init_ff(TIM3,6552);
 	Active_IT_Debordement_Timer(TIM4,2,CallbackSon);
-	unsigned short int PWM_Init_ff(TIM3,4,720);
-	char GPIO_Configure(GPIOB, 0, OUTPUT, ALT_PPULL);
+	PWM_Init_ff(TIM3,3,720);
+	GPIO_Configure(GPIOB, 0, OUTPUT, ALT_PPULL);
 	
 
 //============================================================================	
diff --git a/soft/PjtKEIL_StepSon/StepSon.uvoptx b/soft/PjtKEIL_StepSon/StepSon.uvoptx
index 03f6088..9dd4fed 100644
--- a/soft/PjtKEIL_StepSon/StepSon.uvoptx
+++ b/soft/PjtKEIL_StepSon/StepSon.uvoptx
@@ -75,7 +75,7 @@
       <OPTFL>
         <tvExp>1</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>0</IsCurrentTarget>
+        <IsCurrentTarget>1</IsCurrentTarget>
       </OPTFL>
       <CpuCode>18</CpuCode>
       <DebugOpt>
@@ -154,6 +154,26 @@
         </SetRegEntry>
       </TargetDriverDllRegistry>
       <Breakpoint/>
+      <WatchWindow1>
+        <Ww>
+          <count>0</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>Index</ItemText>
+        </Ww>
+        <Ww>
+          <count>1</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>SortieSon</ItemText>
+        </Ww>
+      </WatchWindow1>
+      <MemoryWindow1>
+        <Mm>
+          <WinNumber>1</WinNumber>
+          <SubType>10</SubType>
+          <ItemText>0x200000A0</ItemText>
+          <AccSizeX>0</AccSizeX>
+        </Mm>
+      </MemoryWindow1>
       <Tracepoint>
         <THDelay>0</THDelay>
       </Tracepoint>
@@ -174,7 +194,7 @@
         <AscS3>0</AscS3>
         <aSer3>0</aSer3>
         <eProf>0</eProf>
-        <aLa>0</aLa>
+        <aLa>1</aLa>
         <aPa1>0</aPa1>
         <AscS4>0</AscS4>
         <aSer4>0</aSer4>
@@ -199,8 +219,8 @@
       <LogicAnalyzers>
         <Wi>
           <IntNumber>0</IntNumber>
-          <FirstString>((portb &amp; 0x00000002) &gt;&gt; 1 &amp; 0x2) &gt;&gt; 1</FirstString>
-          <SecondString>FF000000000000000000000000000000E0FFEF400100000000000000000000000000000028706F7274622026203078303030303030303229203E3E2031000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000F03F160000000000000000000000000000000000000096020008</SecondString>
+          <FirstString>`portb</FirstString>
+          <SecondString>00800000000000000000000000000000E0FFEF4000000000000000000000000000000000706F7274620000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000F03F1A00000000000000000000000000000000000000B40A0008</SecondString>
         </Wi>
       </LogicAnalyzers>
       <DebugDescription>
@@ -460,7 +480,7 @@
       <OPTFL>
         <tvExp>1</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>1</IsCurrentTarget>
+        <IsCurrentTarget>0</IsCurrentTarget>
       </OPTFL>
       <CpuCode>18</CpuCode>
       <DebugOpt>
diff --git a/soft/PjtKEIL_StepSon/StepSon.uvprojx b/soft/PjtKEIL_StepSon/StepSon.uvprojx
index 839c3b9..2849fe6 100644
--- a/soft/PjtKEIL_StepSon/StepSon.uvprojx
+++ b/soft/PjtKEIL_StepSon/StepSon.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>