diff --git a/soft/PjtKEIL_StepDFT/Src/DFT.s b/soft/PjtKEIL_StepDFT/Src/DFT.s
index 9fc6bc6..f2fce9a 100644
--- a/soft/PjtKEIL_StepDFT/Src/DFT.s
+++ b/soft/PjtKEIL_StepDFT/Src/DFT.s
@@ -21,25 +21,61 @@
 	area    moncode,code,readonly
 ; écrire le code ici		
 
-
-DFT_ModuleAuCarre PROC
-	push {r4, r5}
+	EXPORT DFT_ModuleAuCarre
+		
+DFT_PartieReelle PROC
+	push {lr, r4, r5, r6}
+	ldr r3, =TabCos
+	mov r4, #0
 	mov r7, #0
-	mov r5, #0
-	ldr r3, =TabCos 			; r3 = &TabCos[0];
-Loop
-	ldrsh r2, [r3], #2			; r2 = TabCos[i++]
-	ldrsh r4, [r0], #2			; r5 = Signal[i++]
-	add r5, #1					; i++;
-	mul r2, r4					; r3 = Signal[i] * TabCos[i];
-	mul r2, r1					; r3 = Signal[i] * TabCos[i] * k;
-	add r7, r2
-	cmp r5, #64
-	blt Loop
-	pop {r4, r5}
+Boucle1
+	mul r6, r1, r4
+	and r6, #63
+	ldrsh r2, [r3, r6, LSL#1]
+	ldrsh r5, [r0, r6, LSL#1]
+	mul r5, r2, r5
+	add r7, r5
+	add r4, #1
+	cmp r4, #64
+	blt Boucle1
+	mov r0, r7
+	pop {lr, r4, r5, r6}
+	bx lr
+	ENDP
+		
+DFT_PartieImaginaire PROC
+	push {lr, r4, r5, r6}
+	ldr r3, =TabSin
+	mov r4, #0
+	mov r7, #0
+Boucle2
+	mul r6, r1, r4
+	and r6, #63
+	ldrsh r2, [r3, r6, LSL#1]
+	ldrsh r5, [r0, r6, LSL#1]
+	mul r5, r2, r5
+	add r7, r5
+	add r4, #1
+	cmp r4, #64
+	blt Boucle2
+	mov r0, r7
+	pop {lr, r4, r5, r6}
+	bx lr
+	ENDP
+		
+DFT_ModuleAuCarre PROC
+	push {r0, r4, lr}
+	bl DFT_PartieReelle
+	mov r4, r0
+	pop {r0}
+	bl DFT_PartieImaginaire
+	smull r1, r3, r0, r0
+	smull r2, r7, r4, r4
+	adds r1, r2
+	adc r0, r3, r7
+	pop {r4, lr}
 	bx lr
 	ENDP
-
 
 ;Section ROM code (read only) :		
 	AREA Trigo, DATA, READONLY
diff --git a/soft/PjtKEIL_StepDFT/Src/principal.c b/soft/PjtKEIL_StepDFT/Src/principal.c
index 77395db..408708a 100644
--- a/soft/PjtKEIL_StepDFT/Src/principal.c
+++ b/soft/PjtKEIL_StepDFT/Src/principal.c
@@ -1,9 +1,10 @@
 #include "DriverJeuLaser.h"
 
-extern void DFT_ModuleAuCarre(short int* Signal64ech, char k);
-extern int16_t* LeSignal;
-
+extern int DFT_ModuleAuCarre(short int* Signal64ech, char k);
+extern int16_t LeSignal;
 
+unsigned int test = 0;
+unsigned int test2 = 0;
 
 int main(void)
 {
@@ -25,8 +26,9 @@ while	(1)
 	{
 		if (once) {
 			once = 0;
-			DFT_ModuleAuCarre(LeSignal, 1);
-			
+			//for (int i = 0; i < 64; i++)
+			test = DFT_ModuleAuCarre(&LeSignal, 1);
+		}
 	}
 }
 
diff --git a/soft/PjtKEIL_StepDFT/StepDFT.uvoptx b/soft/PjtKEIL_StepDFT/StepDFT.uvoptx
index b329156..d71a9ab 100644
--- a/soft/PjtKEIL_StepDFT/StepDFT.uvoptx
+++ b/soft/PjtKEIL_StepDFT/StepDFT.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 +154,46 @@
         </SetRegEntry>
       </TargetDriverDllRegistry>
       <Breakpoint/>
+      <WatchWindow1>
+        <Ww>
+          <count>0</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>r7</ItemText>
+        </Ww>
+        <Ww>
+          <count>1</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>r4,0x0A</ItemText>
+        </Ww>
+        <Ww>
+          <count>2</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>r5</ItemText>
+        </Ww>
+        <Ww>
+          <count>3</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>r0</ItemText>
+        </Ww>
+        <Ww>
+          <count>4</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>r3</ItemText>
+        </Ww>
+        <Ww>
+          <count>5</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>test</ItemText>
+        </Ww>
+      </WatchWindow1>
+      <MemoryWindow1>
+        <Mm>
+          <WinNumber>1</WinNumber>
+          <SubType>0</SubType>
+          <ItemText>test</ItemText>
+          <AccSizeX>0</AccSizeX>
+        </Mm>
+      </MemoryWindow1>
       <Tracepoint>
         <THDelay>0</THDelay>
       </Tracepoint>
@@ -174,7 +214,7 @@
         <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 +239,8 @@
       <LogicAnalyzers>
         <Wi>
           <IntNumber>0</IntNumber>
-          <FirstString>((portb &amp; 0x00000002) &gt;&gt; 1 &amp; 0x2) &gt;&gt; 1</FirstString>
-          <SecondString>FF000000000000000000000000000000E0FFEF400100000000000000000000000000000028706F7274622026203078303030303030303229203E3E2031000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000F03F160000000000000000000000000000000000000096020008</SecondString>
+          <FirstString>`test</FirstString>
+          <SecondString>FF000000000000000000E0C10000C0FFFFFFDF410000000000000000000000000000000074657374000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000F03F0A000000000000000000000000000000000000007C020008</SecondString>
         </Wi>
       </LogicAnalyzers>
       <DebugDescription>
@@ -267,7 +307,7 @@
       <OPTFL>
         <tvExp>1</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>1</IsCurrentTarget>
+        <IsCurrentTarget>0</IsCurrentTarget>
       </OPTFL>
       <CpuCode>18</CpuCode>
       <DebugOpt>