diff --git a/src/eeprom_avr.cpp b/src/eeprom_avr.cpp
index 0ff63c927..5fe0c4540 100644
--- a/src/eeprom_avr.cpp
+++ b/src/eeprom_avr.cpp
@@ -101,7 +101,6 @@ void eeWriteBlockCmp(const void *i_pointer_ram, uint16_t i_pointer_eeprom, size_
 
 #ifdef SIMU
   sem_post(eeprom_write_sem);
-  printf("sem_post doit demarrer le thread EEPROM"); fflush(stdout);
 #elif defined (PCBARM)
 
 #elif defined (PCBV4)
diff --git a/src/simpgmspace.cpp b/src/simpgmspace.cpp
index fb59628dd..19f6ee7e1 100644
--- a/src/simpgmspace.cpp
+++ b/src/simpgmspace.cpp
@@ -32,6 +32,7 @@
  */
 
 #include "open9x.h"
+#include <stdlib.h>
 #include <errno.h>
 #include <fcntl.h>
 
@@ -105,9 +106,7 @@ void setSwitch(int8_t swtch)
 bool eeprom_thread_running = true;
 void *eeprom_write_function(void *)
 {
-  printf("on entre dans eeprom_write_function\n"); fflush(stdout);
-  while (!sem_wait(eeprom_write_sem) || errno==EINTR) {
-    printf("sortie sem_wait"); fflush(stdout);
+  while (!sem_wait(eeprom_write_sem)) {
     if (!eeprom_thread_running)
       return NULL;
 #if defined(PCBARM)
@@ -122,9 +121,7 @@ void *eeprom_write_function(void *)
       if (fseek(fp, eeprom_pointer, SEEK_SET) == -1)
         perror("error in fseek");
     }
-    printf("avant la boucle eeprom_buffer_size=%d\n", eeprom_buffer_size); fflush(stdout);
     while (--eeprom_buffer_size) {
-      printf("ecriture eeprom_buffer_size=%d\n", eeprom_buffer_size); fflush(stdout);
       assert(eeprom_buffer_size > 0);
       if (fp) {
         if (fwrite(eeprom_buffer_data, 1, 1, fp) != 1)
@@ -134,7 +131,6 @@ void *eeprom_write_function(void *)
 #endif
       }
       else {
-        printf("avant memcpy eeprom_pointer=%d\n", eeprom_pointer); fflush(stdout);
         memcpy(&eeprom[eeprom_pointer], eeprom_buffer_data, 1);
       }
       eeprom_pointer++;
@@ -144,13 +140,11 @@ void *eeprom_write_function(void *)
         fflush(fp);
       }
     }
-    printf("sortie boucle ecriture eeprom_buffer_size=%d\n", eeprom_buffer_size); fflush(stdout);
 #if defined(PCBARM)
     }
     Spi_complete = 1;
 #endif
   }
-  printf("sortie du thread EEPROM, pas bon avant la fin !!! errno=%d\n", errno); fflush(stdout);
   return 0;
 }
 
@@ -224,8 +218,12 @@ void StartEepromThread(const char *filename)
       fp = fopen(eepromFile, "w+");
     if (!fp) perror("error in fopen");
   }
-  // sem_init(&eeprom_write_sem, 0, 0);
+#ifdef __APPLE__
   eeprom_write_sem = sem_open("eepromsemaphore", O_CREAT);
+#else
+  eeprom_write_sem = (sem_t *)malloc(sizeof(sem_t));
+  sem_init(eeprom_write_sem, 0, 0);
+#endif
   eeprom_thread_running = true;
   assert(!pthread_create(&eeprom_thread_pid, NULL, &eeprom_write_function, NULL));
 }