diff --git a/ProjetsKEIL/Drivers/Source/Principale.c b/ProjetsKEIL/Drivers/Source/Principale.c
index 9b4d29a..b0c32bb 100644
--- a/ProjetsKEIL/Drivers/Source/Principale.c
+++ b/ProjetsKEIL/Drivers/Source/Principale.c
@@ -3,8 +3,11 @@
 
 int main ( void )
 {
-	MyGPIO_Struct_TypeDef gpioA_test = {GPIOA,13,In_PullUp};
+	int returnValue=0;
+	MyGPIO_Struct_TypeDef gpioA_test = {GPIOB,8,In_PullDown};
 	MyGPIO_Init(&gpioA_test);
+	returnValue = MyGPIO_Read(GPIOB,8);
+	returnValue = returnValue;
 	do{
 	}while(1) ;	
 	
diff --git a/ProjetsKEIL/Drivers/gpiodriver.c b/ProjetsKEIL/Drivers/gpiodriver.c
index ed492b6..a7a19ae 100644
--- a/ProjetsKEIL/Drivers/gpiodriver.c
+++ b/ProjetsKEIL/Drivers/gpiodriver.c
@@ -25,7 +25,7 @@ void MyGPIO_Init(MyGPIO_Struct_TypeDef * GPIOStructPtr)
 
 int MyGPIO_Read(GPIO_TypeDef * GPIO, uint8_t GPIO_Pin)
 {
-	return 0;
+	return (GPIO->IDR & (0x1 << GPIO_Pin)) > 0; 
 }
 
 void MyGPIO_Set(GPIO_TypeDef * GPIO, uint8_t GPIO_Pin)
diff --git a/ProjetsKEIL/Drivers/gpiodriver.uvoptx b/ProjetsKEIL/Drivers/gpiodriver.uvoptx
index 9d1f1df..bd062ca 100644
--- a/ProjetsKEIL/Drivers/gpiodriver.uvoptx
+++ b/ProjetsKEIL/Drivers/gpiodriver.uvoptx
@@ -75,7 +75,7 @@
       <OPTFL>
         <tvExp>1</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>1</IsCurrentTarget>
+        <IsCurrentTarget>0</IsCurrentTarget>
       </OPTFL>
       <CpuCode>18</CpuCode>
       <DebugOpt>
@@ -125,7 +125,7 @@
         <SetRegEntry>
           <Number>0</Number>
           <Key>DLGDARM</Key>
-          <Name>(1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=-1,-1,-1,-1,0)(100=-1,-1,-1,-1,0)(110=-1,-1,-1,-1,0)(111=-1,-1,-1,-1,0)(1011=-1,-1,-1,-1,0)(180=-1,-1,-1,-1,0)(120=1508,115,1929,542,1)(121=-1,-1,-1,-1,0)(122=875,109,1296,536,0)(123=-1,-1,-1,-1,0)(140=-1,-1,-1,-1,0)(240=-1,-1,-1,-1,0)(190=-1,-1,-1,-1,0)(200=-1,-1,-1,-1,0)(170=-1,-1,-1,-1,0)(130=-1,-1,-1,-1,0)(131=-1,-1,-1,-1,0)(132=-1,-1,-1,-1,0)(133=-1,-1,-1,-1,0)(160=-1,-1,-1,-1,0)(161=-1,-1,-1,-1,0)(162=-1,-1,-1,-1,0)(210=-1,-1,-1,-1,0)(211=-1,-1,-1,-1,0)(220=-1,-1,-1,-1,0)(221=-1,-1,-1,-1,0)(230=-1,-1,-1,-1,0)(234=-1,-1,-1,-1,0)(231=-1,-1,-1,-1,0)(232=-1,-1,-1,-1,0)(233=-1,-1,-1,-1,0)(150=-1,-1,-1,-1,0)(151=-1,-1,-1,-1,0)</Name>
+          <Name>(1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=-1,-1,-1,-1,0)(100=-1,-1,-1,-1,0)(110=-1,-1,-1,-1,0)(111=-1,-1,-1,-1,0)(1011=-1,-1,-1,-1,0)(180=-1,-1,-1,-1,0)(120=1499,115,1920,542,1)(121=-1,-1,-1,-1,0)(122=875,109,1296,536,0)(123=-1,-1,-1,-1,0)(140=-1,-1,-1,-1,0)(240=-1,-1,-1,-1,0)(190=-1,-1,-1,-1,0)(200=-1,-1,-1,-1,0)(170=-1,-1,-1,-1,0)(130=-1,-1,-1,-1,0)(131=-1,-1,-1,-1,0)(132=-1,-1,-1,-1,0)(133=-1,-1,-1,-1,0)(160=-1,-1,-1,-1,0)(161=-1,-1,-1,-1,0)(162=-1,-1,-1,-1,0)(210=-1,-1,-1,-1,0)(211=-1,-1,-1,-1,0)(220=-1,-1,-1,-1,0)(221=-1,-1,-1,-1,0)(230=-1,-1,-1,-1,0)(234=-1,-1,-1,-1,0)(231=-1,-1,-1,-1,0)(232=-1,-1,-1,-1,0)(233=-1,-1,-1,-1,0)(150=-1,-1,-1,-1,0)(151=-1,-1,-1,-1,0)</Name>
         </SetRegEntry>
         <SetRegEntry>
           <Number>0</Number>
@@ -142,9 +142,57 @@
         <Bp>
           <Number>0</Number>
           <Type>0</Type>
-          <LineNumber>23</LineNumber>
+          <LineNumber>10</LineNumber>
           <EnabledFlag>1</EnabledFlag>
-          <Address>134218316</Address>
+          <Address>134218742</Address>
+          <ByteObject>0</ByteObject>
+          <HtxType>0</HtxType>
+          <ManyObjects>0</ManyObjects>
+          <SizeOfObject>0</SizeOfObject>
+          <BreakByAccess>0</BreakByAccess>
+          <BreakIfRCount>1</BreakIfRCount>
+          <Filename>.\Source\Principale.c</Filename>
+          <ExecCommand></ExecCommand>
+          <Expression>\\cool_Simule\Source/Principale.c\10</Expression>
+        </Bp>
+        <Bp>
+          <Number>1</Number>
+          <Type>0</Type>
+          <LineNumber>9</LineNumber>
+          <EnabledFlag>1</EnabledFlag>
+          <Address>134218734</Address>
+          <ByteObject>0</ByteObject>
+          <HtxType>0</HtxType>
+          <ManyObjects>0</ManyObjects>
+          <SizeOfObject>0</SizeOfObject>
+          <BreakByAccess>0</BreakByAccess>
+          <BreakIfRCount>1</BreakIfRCount>
+          <Filename>.\Source\Principale.c</Filename>
+          <ExecCommand></ExecCommand>
+          <Expression>\\cool_Simule\Source/Principale.c\9</Expression>
+        </Bp>
+        <Bp>
+          <Number>2</Number>
+          <Type>0</Type>
+          <LineNumber>6</LineNumber>
+          <EnabledFlag>1</EnabledFlag>
+          <Address>134218718</Address>
+          <ByteObject>0</ByteObject>
+          <HtxType>0</HtxType>
+          <ManyObjects>0</ManyObjects>
+          <SizeOfObject>0</SizeOfObject>
+          <BreakByAccess>0</BreakByAccess>
+          <BreakIfRCount>1</BreakIfRCount>
+          <Filename>.\Source\Principale.c</Filename>
+          <ExecCommand></ExecCommand>
+          <Expression>\\cool_Simule\Source/Principale.c\6</Expression>
+        </Bp>
+        <Bp>
+          <Number>3</Number>
+          <Type>0</Type>
+          <LineNumber>22</LineNumber>
+          <EnabledFlag>1</EnabledFlag>
+          <Address>134218326</Address>
           <ByteObject>0</ByteObject>
           <HtxType>0</HtxType>
           <ManyObjects>0</ManyObjects>
@@ -153,10 +201,10 @@
           <BreakIfRCount>1</BreakIfRCount>
           <Filename>.\gpiodriver.c</Filename>
           <ExecCommand></ExecCommand>
-          <Expression>\\cool_Simule\gpiodriver.c\23</Expression>
+          <Expression>\\cool_Simule\gpiodriver.c\22</Expression>
         </Bp>
         <Bp>
-          <Number>1</Number>
+          <Number>4</Number>
           <Type>0</Type>
           <LineNumber>4</LineNumber>
           <EnabledFlag>1</EnabledFlag>
@@ -171,38 +219,6 @@
           <ExecCommand></ExecCommand>
           <Expression>\\cool_Simule\gpiodriver.c\4</Expression>
         </Bp>
-        <Bp>
-          <Number>2</Number>
-          <Type>0</Type>
-          <LineNumber>11</LineNumber>
-          <EnabledFlag>1</EnabledFlag>
-          <Address>134218228</Address>
-          <ByteObject>0</ByteObject>
-          <HtxType>0</HtxType>
-          <ManyObjects>0</ManyObjects>
-          <SizeOfObject>0</SizeOfObject>
-          <BreakByAccess>0</BreakByAccess>
-          <BreakIfRCount>1</BreakIfRCount>
-          <Filename>.\gpiodriver.c</Filename>
-          <ExecCommand></ExecCommand>
-          <Expression>\\cool_Simule\gpiodriver.c\11</Expression>
-        </Bp>
-        <Bp>
-          <Number>3</Number>
-          <Type>0</Type>
-          <LineNumber>22</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>.\gpiodriver.c</Filename>
-          <ExecCommand></ExecCommand>
-          <Expression></Expression>
-        </Bp>
       </Breakpoint>
       <WatchWindow1>
         <Ww>
@@ -210,6 +226,11 @@
           <WinNumber>1</WinNumber>
           <ItemText>voyons</ItemText>
         </Ww>
+        <Ww>
+          <count>1</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>returnValue</ItemText>
+        </Ww>
       </WatchWindow1>
       <Tracepoint>
         <THDelay>0</THDelay>
@@ -323,7 +344,7 @@
       <OPTFL>
         <tvExp>1</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>0</IsCurrentTarget>
+        <IsCurrentTarget>1</IsCurrentTarget>
       </OPTFL>
       <CpuCode>18</CpuCode>
       <DebugOpt>