diff --git a/soft/PjtKEIL_StepDFT/Src/DFT.s b/soft/PjtKEIL_StepDFT/Src/DFT.s
index 3f6b5d4..9fc6bc6 100644
--- a/soft/PjtKEIL_StepDFT/Src/DFT.s
+++ b/soft/PjtKEIL_StepDFT/Src/DFT.s
@@ -22,7 +22,23 @@
 ; écrire le code ici		
 
 
-
+DFT_ModuleAuCarre PROC
+	push {r4, r5}
+	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}
+	bx lr
+	ENDP
 
 
 ;Section ROM code (read only) :		
diff --git a/soft/PjtKEIL_StepDFT/Src/principal.c b/soft/PjtKEIL_StepDFT/Src/principal.c
index d09be75..77395db 100644
--- a/soft/PjtKEIL_StepDFT/Src/principal.c
+++ b/soft/PjtKEIL_StepDFT/Src/principal.c
@@ -1,7 +1,8 @@
-
-
 #include "DriverJeuLaser.h"
 
+extern void DFT_ModuleAuCarre(short int* Signal64ech, char k);
+extern int16_t* LeSignal;
+
 
 
 int main(void)
@@ -14,15 +15,18 @@ int main(void)
 // Après exécution : le coeur CPU est clocké à 72MHz ainsi que tous les timers
 CLOCK_Configure();
 
-
 	
 	
 
 //============================================================================	
 	
-	
+int once = 1;
 while	(1)
 	{
+		if (once) {
+			once = 0;
+			DFT_ModuleAuCarre(LeSignal, 1);
+			
 	}
 }
 
diff --git a/soft/PjtKEIL_StepDFT/StepDFT.uvoptx b/soft/PjtKEIL_StepDFT/StepDFT.uvoptx
index 0d72cfc..b329156 100644
--- a/soft/PjtKEIL_StepDFT/StepDFT.uvoptx
+++ b/soft/PjtKEIL_StepDFT/StepDFT.uvoptx
@@ -624,6 +624,30 @@
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
+    <File>
+      <GroupNumber>1</GroupNumber>
+      <FileNumber>2</FileNumber>
+      <FileType>2</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>.\Src\DFT.s</PathWithFileName>
+      <FilenameWithoutPath>DFT.s</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>1</GroupNumber>
+      <FileNumber>3</FileNumber>
+      <FileType>2</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>.\Src\Signal.asm</PathWithFileName>
+      <FilenameWithoutPath>Signal.asm</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
   </Group>
 
   <Group>
@@ -634,7 +658,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>2</GroupNumber>
-      <FileNumber>2</FileNumber>
+      <FileNumber>4</FileNumber>
       <FileType>2</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -654,7 +678,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>3</GroupNumber>
-      <FileNumber>3</FileNumber>
+      <FileNumber>5</FileNumber>
       <FileType>4</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
diff --git a/soft/PjtKEIL_StepDFT/StepDFT.uvprojx b/soft/PjtKEIL_StepDFT/StepDFT.uvprojx
index 9031782..63375da 100644
--- a/soft/PjtKEIL_StepDFT/StepDFT.uvprojx
+++ b/soft/PjtKEIL_StepDFT/StepDFT.uvprojx
@@ -388,6 +388,16 @@
               <FileType>1</FileType>
               <FilePath>.\Src\principal.c</FilePath>
             </File>
+            <File>
+              <FileName>DFT.s</FileName>
+              <FileType>2</FileType>
+              <FilePath>.\Src\DFT.s</FilePath>
+            </File>
+            <File>
+              <FileName>Signal.asm</FileName>
+              <FileType>2</FileType>
+              <FilePath>.\Src\Signal.asm</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -797,6 +807,16 @@
               <FileType>1</FileType>
               <FilePath>.\Src\principal.c</FilePath>
             </File>
+            <File>
+              <FileName>DFT.s</FileName>
+              <FileType>2</FileType>
+              <FilePath>.\Src\DFT.s</FilePath>
+            </File>
+            <File>
+              <FileName>Signal.asm</FileName>
+              <FileType>2</FileType>
+              <FilePath>.\Src\Signal.asm</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -1275,6 +1295,16 @@
               <FileType>1</FileType>
               <FilePath>.\Src\principal.c</FilePath>
             </File>
+            <File>
+              <FileName>DFT.s</FileName>
+              <FileType>2</FileType>
+              <FilePath>.\Src\DFT.s</FilePath>
+            </File>
+            <File>
+              <FileName>Signal.asm</FileName>
+              <FileType>2</FileType>
+              <FilePath>.\Src\Signal.asm</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>