/*
* Main
*/
int main(void) {
init_tlb();
enable_tlb();
printf("Hello from Nios II!\n");
mutex = altera_avalon_mutex_open(MUTEX_0_NAME); // Initialize the hardware mutex
mbox = OSSemCreate(0); // Initialize the message box
CriticalFunctionPointers* cp = (CriticalFunctionPointers*)SHARED_MEMORY_BASE;
// Wait for monitor to be done initialization of shared variables before retrieving their values
while(cp->init_complete == 0);
init_cpu1_isr(); // Initialize the ISR
// Set the task(only one in this example)
int arg_5 = CRITICAL_TASK_PRIORITY;
OSTaskCreateExt(preemption_task, &arg_5, &critical_task_stk[TASK_STACKSIZE - 1],
CRITICAL_TASK_PRIORITY, CRITICAL_TASK_PRIORITY,
critical_task_stk, TASK_STACKSIZE, NULL,0);
// Signal that the core has finished initializing
altera_avalon_mutex_lock(mutex, 1); // Acquire the hardware mutex
{
cp->core_ready[1] = 1;
}
altera_avalon_mutex_unlock(mutex); // Memory
// Start OS
OSStart();
return 0;
}
int main()
{
printf("Hello from cpu_3!\n");
alt_mutex_dev* mutex = altera_avalon_mutex_open( "/dev/mutex_1" );
while(TRUE) {
altera_avalon_mutex_lock( mutex, 1 );
if (IORD_8DIRECT(FLAG,0) == 1) {
value=IORD_8DIRECT(VALUE,0);
printf("Reading from shared memory (safe): %d\n",value);
IOWR_8DIRECT(VALUE,0,++value);
IOWR_8DIRECT(FLAG,0,0);
printf("\tWriting to shared memory (safe): %d\n",value);
}
altera_avalon_mutex_unlock( mutex );
delay(10);
}
return 0;
}
