diff --git a/CCDebugger.c b/CCDebugger.c
index 10f8f8d..6f17a1c 100644
--- a/CCDebugger.c
+++ b/CCDebugger.c
@@ -69,12 +69,14 @@
 #define I_GET_BM    14
 #define I_BURST_WRITE    15
 
+void cc_delay_calibrate( );
 int cc_init( int pRST, int pDC, int pDD )
 {
   if(wiringPiSetup() == -1){
     printf("no wiring pi detected\n");
     return 0;
   }
+  cc_delay_calibrate();
 
   pinRST=pRST;
   pinDC=pDC;
@@ -172,15 +174,29 @@ uint8_t cc_error()
  * Delay a particular number of cycles
  */
 struct timespec tp={0,0};
+static int cc_delay_mult=50;
 void cc_delay( unsigned char d )
 {
-  volatile unsigned char i = 50*d;
+  volatile unsigned int i = cc_delay_mult*d;
   while( i-- );
 //tp.tv_nsec=40*d;
 //nanosleep(&tp,NULL);
 
 }
 
+/* provas konsideri la rapidecon de la procesoro */
+void cc_delay_calibrate( )
+{
+  long time0=micros();
+  cc_delay(200);
+  cc_delay(200);
+  cc_delay(200);
+  cc_delay(200);
+  cc_delay(200);
+  long time1=micros();
+  cc_delay_mult=cc_delay_mult*200/(time1-time0);
+}
+
 /**
  * Enter debug mode
  */
diff --git a/cc_chipid b/cc_chipid
index 11fdadc..3b89c44 100755
Binary files a/cc_chipid and b/cc_chipid differ
diff --git a/cc_erase b/cc_erase
index 761dfd1..c106499 100755
Binary files a/cc_erase and b/cc_erase differ
diff --git a/cc_read b/cc_read
index e6bb74c..ca572da 100755
Binary files a/cc_read and b/cc_read differ
diff --git a/cc_read.c b/cc_read.c
index bd089ea..7788fe5 100644
--- a/cc_read.c
+++ b/cc_read.c
@@ -76,6 +76,7 @@ int main(int argc,char **argv)
   uint16_t offset=0;
   uint8_t bank=0;
   int progress=1;
+  // int nbread=0;
   for( bank=0 ; bank<8 ; bank++)
   {
     printf(".");fflush(stdout);
@@ -93,12 +94,14 @@ int main(int argc,char **argv)
       {
         read1k(bank,i*1024, buf1);
         read1k(bank,i*1024, buf2);
+        // nbread++;
       } while(memcmp(buf1,buf2,1024));
       for(uint16_t j=0 ; j<64 ; j++)
 	writeHexLine(ficout,buf1+j*16, 16,(bank&1)*32*1024+ i*1024+j*16);
       printf("\r reading %dk/256k",progress++);fflush(stdout);
     }
   }
+  // fprintf(stderr,"nbread=%d\n",nbread);
   fprintf(ficout,":00000001FF\n");
   // exit from debug 
   cc_setActive(false);
diff --git a/cc_write b/cc_write
index a9a666f..48ed5c8 100755
Binary files a/cc_write and b/cc_write differ