diff --git a/soft/PjtKEIL_StepDFT/Src/DFT.s b/soft/PjtKEIL_StepDFT/Src/DFT.s
index 3f6b5d4..46b2164 100644
--- a/soft/PjtKEIL_StepDFT/Src/DFT.s
+++ b/soft/PjtKEIL_StepDFT/Src/DFT.s
@@ -1,7 +1,9 @@
 	PRESERVE8
 	THUMB   
+	
+	export DFT_ModuleAuCarre
+	extern LeSignal
 		
-
 ; ====================== zone de réservation de données,  ======================================
 ;Section RAM (read only) :
 	area    mesdata,data,readonly
@@ -21,9 +23,43 @@
 	area    moncode,code,readonly
 ; écrire le code ici		
 
+DFT_ModuleAuCarre
+	push {lr,r0}
+	ldr r2, =TabCos
+	bl DFT_X ; calcul cos
+	mov r3,r0 ; met le res dans r3
+	pop{r0}
+	ldr r2, =TabSin
+	push{r3}
+	bl DFT_X ; calcul sin
+	pop{r3}
+	asr r3,#16; décalage signé pour éviter le débordement du registre
+	asr r0,#16; décalage signé pour éviter le débordement du registre
+	mul r3,r3; cos carré dans r3 nouveau format 22.10	
+	mul r0,r0; sin carré dans r0 nouveau format 22.10
+	add r0,r3; somme des carrés dans le registre de retour format 22.10
+	pop{pc}
 
 
-
+DFT_X
+	push {lr, r4, r5, r6}
+	mov r4, #0
+	mov r5, #0
+boucle
+	cmp r4, #64
+	beq fin
+	ldrsh r3, [r0, r4, lsl#1]; R3 (signal) -> format 4.12
+	mul r6, r1, r4
+	and r6, #0x3f
+	ldrsh r6, [r2, r6, lsl#1]; R6 (tabCos)-> format 1.15
+	mul r6, r3; r6 format ->5.27
+	asr r6, #6
+	add	r5, r6; r5 (Somme) doit etre au format 5+6(à cause du asr).27-6 = 11.21
+	add r4, #1
+	b boucle
+fin
+	mov r0, r5
+	pop {pc, r4, r5, r6}
 
 ;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 d09be75..468bbf9 100644
--- a/soft/PjtKEIL_StepDFT/Src/principal.c
+++ b/soft/PjtKEIL_StepDFT/Src/principal.c
@@ -1,12 +1,12 @@
 
 
 #include "DriverJeuLaser.h"
-
-
-
+extern int DFT_ModuleAuCarre(short int * Signal64ech, char k);
+extern short int LeSignal;
+int tab[64];
 int main(void)
 {
-
+	
 // ===========================================================================
 // ============= INIT PERIPH (faites qu'une seule fois)  =====================
 // ===========================================================================
@@ -15,8 +15,9 @@ int main(void)
 CLOCK_Configure();
 
 
-	
-	
+	for (int i = 0; i<64; i++){
+		tab[i] = DFT_ModuleAuCarre( &LeSignal, i);
+	}
 
 //============================================================================	
 	
diff --git a/soft/PjtKEIL_StepDFT/StepDFT.uvoptx b/soft/PjtKEIL_StepDFT/StepDFT.uvoptx
index 0d72cfc..0195312 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>
@@ -153,7 +153,73 @@
           <Name>-U066CFF574857847167074929 -O2254 -S0 -C0 -A0 -N00("ARM CoreSight SW-DP") -D00(1BA01477) -L00(0) -TO18 -TC10000000 -TP21 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -FO7 -FD20000000 -FC800 -FN1 -FF0STM32F10x_128.FLM -FS08000000 -FL020000 -FP0($$Device:STM32F103RB$Flash\STM32F10x_128.FLM)</Name>
         </SetRegEntry>
       </TargetDriverDllRegistry>
-      <Breakpoint/>
+      <Breakpoint>
+        <Bp>
+          <Number>0</Number>
+          <Type>0</Type>
+          <LineNumber>36</LineNumber>
+          <EnabledFlag>1</EnabledFlag>
+          <Address>134218430</Address>
+          <ByteObject>0</ByteObject>
+          <HtxType>0</HtxType>
+          <ManyObjects>0</ManyObjects>
+          <SizeOfObject>0</SizeOfObject>
+          <BreakByAccess>0</BreakByAccess>
+          <BreakIfRCount>1</BreakIfRCount>
+          <Filename>.\Src\DFT.s</Filename>
+          <ExecCommand></ExecCommand>
+          <Expression>\\StepDFT\Src/DFT.s\36</Expression>
+        </Bp>
+        <Bp>
+          <Number>1</Number>
+          <Type>0</Type>
+          <LineNumber>30</LineNumber>
+          <EnabledFlag>1</EnabledFlag>
+          <Address>134218412</Address>
+          <ByteObject>0</ByteObject>
+          <HtxType>0</HtxType>
+          <ManyObjects>0</ManyObjects>
+          <SizeOfObject>0</SizeOfObject>
+          <BreakByAccess>0</BreakByAccess>
+          <BreakIfRCount>1</BreakIfRCount>
+          <Filename>.\Src\DFT.s</Filename>
+          <ExecCommand></ExecCommand>
+          <Expression>\\StepDFT\Src/DFT.s\30</Expression>
+        </Bp>
+        <Bp>
+          <Number>2</Number>
+          <Type>0</Type>
+          <LineNumber>38</LineNumber>
+          <EnabledFlag>1</EnabledFlag>
+          <Address>0</Address>
+          <ByteObject>0</ByteObject>
+          <HtxType>0</HtxType>
+          <ManyObjects>0</ManyObjects>
+          <SizeOfObject>0</SizeOfObject>
+          <BreakByAccess>0</BreakByAccess>
+          <BreakIfRCount>0</BreakIfRCount>
+          <Filename>.\Src\DFT.s</Filename>
+          <ExecCommand></ExecCommand>
+          <Expression></Expression>
+        </Bp>
+      </Breakpoint>
+      <WatchWindow1>
+        <Ww>
+          <count>0</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>emptytab</ItemText>
+        </Ww>
+        <Ww>
+          <count>1</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>r0</ItemText>
+        </Ww>
+        <Ww>
+          <count>2</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>r3</ItemText>
+        </Ww>
+      </WatchWindow1>
       <Tracepoint>
         <THDelay>0</THDelay>
       </Tracepoint>
@@ -200,7 +266,7 @@
         <Wi>
           <IntNumber>0</IntNumber>
           <FirstString>((portb &amp; 0x00000002) &gt;&gt; 1 &amp; 0x2) &gt;&gt; 1</FirstString>
-          <SecondString>FF000000000000000000000000000000E0FFEF400100000000000000000000000000000028706F7274622026203078303030303030303229203E3E2031000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000F03F160000000000000000000000000000000000000096020008</SecondString>
+          <SecondString>FF000000000000000000000000000000E0FFEF400100000000000000000000000000000028706F7274622026203078303030303030303229203E3E2031000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000F03F100000000000000000000000000000000000000096020008</SecondString>
         </Wi>
       </LogicAnalyzers>
       <DebugDescription>
@@ -267,7 +333,7 @@
       <OPTFL>
         <tvExp>1</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>1</IsCurrentTarget>
+        <IsCurrentTarget>0</IsCurrentTarget>
       </OPTFL>
       <CpuCode>18</CpuCode>
       <DebugOpt>
@@ -624,6 +690,30 @@
       <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 +724,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>2</GroupNumber>
-      <FileNumber>2</FileNumber>
+      <FileNumber>4</FileNumber>
       <FileType>2</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -654,7 +744,7 @@
     <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>
diff --git a/soft/PjtKEIL_StepSon/StepSon.uvoptx b/soft/PjtKEIL_StepSon/StepSon.uvoptx
index 30ee7a5..1dddbf5 100644
--- a/soft/PjtKEIL_StepSon/StepSon.uvoptx
+++ b/soft/PjtKEIL_StepSon/StepSon.uvoptx
@@ -154,11 +154,18 @@
         </SetRegEntry>
       </TargetDriverDllRegistry>
       <Breakpoint/>
+      <WatchWindow1>
+        <Ww>
+          <count>0</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>button</ItemText>
+        </Ww>
+      </WatchWindow1>
       <MemoryWindow1>
         <Mm>
           <WinNumber>1</WinNumber>
           <SubType>266</SubType>
-          <ItemText>0x200000a0</ItemText>
+          <ItemText>button</ItemText>
           <AccSizeX>0</AccSizeX>
         </Mm>
       </MemoryWindow1>
@@ -168,7 +175,7 @@
       <DebugFlag>
         <trace>0</trace>
         <periodic>1</periodic>
-        <aLwin>0</aLwin>
+        <aLwin>1</aLwin>
         <aCover>0</aCover>
         <aSer1>0</aSer1>
         <aSer2>0</aSer2>
@@ -182,7 +189,7 @@
         <AscS3>0</AscS3>
         <aSer3>0</aSer3>
         <eProf>0</eProf>
-        <aLa>0</aLa>
+        <aLa>1</aLa>
         <aPa1>0</aPa1>
         <AscS4>0</AscS4>
         <aSer4>0</aSer4>