mailbox problem

[Altera_Forum]

I want to communicate between two processors mailbox, I wrote the following code por the first processor:  

and the following code for the second processor:  int main()  {    load_data(); //Charge le tableau Z depuis le fichier data.h    alt_u32 message = 0; alt_mailbox_dev* send_dev; alt_mailbox_dev* rec_dev; // Open the two mailboxes between this processor and another  send_dev = altera_avalon_mailbox_open("/dev/mailbox_0"); rec_dev = altera_avalon_mailbox_open("/dev/mailbox_1"); altera_avalon_mailbox_post(send_dev, message);   while(message!=0) {      message = altera_avalon_mailbox_pend(rec_dev);  // Wait for the other processor to send a message back   }  z6 = (short int*)0x00812028;  printf("CPU2: Mr1= %d\t", *(z6));    }    I want to communicate between two processors mailbox, I wrote the following code por the first processor:   and the following code for the second processor: int main()  {    alt_u32 message = 0; alt_mailbox_dev* send_dev; alt_mailbox_dev* rec_dev; // Open the two mailboxes between this processor and another  send_dev = altera_avalon_mailbox_open("/dev/mailbox_0"); rec_dev = altera_avalon_mailbox_open("/dev/mailbox_1");  while(message!=0) {  message = altera_avalon_mailbox_pend(send_dev);  // Wait for the other processor to send a message back    }  load_data(); //Charge le tableau Z depuis le fichier data.h  altera_avalon_mailbox_post(rec_dev, message);    }   i don't know if i am in the right way or not?? can someone help me! thks for all members