diff --git a/Code-C/fileGestion.c b/Code-C/fileGestion.c
index 78d17e1..5b9eeee 100644
--- a/Code-C/fileGestion.c
+++ b/Code-C/fileGestion.c
@@ -26,4 +26,16 @@ void writePowerData(double a[], int N){
         }
     }
     fclose(f);
+}
+
+void threadCalcul(){
+    while(stopFlag == false){
+        if(rawDataWriteFlag){
+            pthread_mutex_lock(&mutex); 
+            while(power(nRow,nCol,period,timeBandwidth) == false){}
+            pthread_mutex_unlock(&mutex);
+            rawDataWriteFlag = true;
+            delay(10);
+        }
+    }
 }
\ No newline at end of file
diff --git a/Code-C/fileGestion.h b/Code-C/fileGestion.h
index de62a28..4df4dcf 100644
--- a/Code-C/fileGestion.h
+++ b/Code-C/fileGestion.h
@@ -3,5 +3,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 
+bool writeFlag = 0;
+
 void clearRawData(int N);
 void writePowerData(double a[], int N);
\ No newline at end of file
diff --git a/Code-C/initialParameters.h b/Code-C/initialParameters.h
index 3007f21..708bc2b 100644
--- a/Code-C/initialParameters.h
+++ b/Code-C/initialParameters.h
@@ -2,5 +2,4 @@ const int nRow = 100000;
 const int nCol = 9;
 const double freqEch = 250;
 
-const double period = 1.0/freqEch;
-const double timeBandwidth = 1.0 /(nRow * period);
+extern bool rawDataWriteFlag , stopFlag;
\ No newline at end of file
diff --git a/Code-C/main.c b/Code-C/main.c
index 3e55a33..70402cf 100644
--- a/Code-C/main.c
+++ b/Code-C/main.c
@@ -4,6 +4,8 @@
 #include "power.h"
 #include "initialParameters.h"
 
+bool rawDataWriteFlag = 0, stopFlag = 0;
+
 int main(int argc , char** argv){
     while(power(nRow,nCol,period,timeBandwidth)==0){}
 }
\ No newline at end of file