SAMA5D4 Platform » VAS Product Release 2.0

The Standalone application works fine. Needs to be integrated with VAS Embedded application

struct _pin sync_in_pins = {PIO_GROUP_B, PIO_PB28, PIO_INPUT, PIO_PULLDOWN | PIO_DEBOUNCE | PIO_IT_RISE_EDGE};
struct _pin sync_out_pins = {PIO_GROUP_E, PIO_PE5, PIO_INPUT, PIO_PULLDOWN | PIO_DEBOUNCE | PIO_IT_RISE_EDGE};

// pin configuration
pio_configure(&sync_in_pins, 1);
pio_configure(&sync_out_pins, 1);

pulse_count = 0;
uint32_t start_time = timer_get_tick();
while(1)
{
	printf("Waiting for HIGH\n\r");
	while(pio_get(&sync_out_pins));
	printf("Waiting for LOW\n\r");
	pulse_count++;
	while(!pio_get(&sync_out_pins));
	if(timer_get_tick() - start_time >= 1000)
	{
		printf("Pulse Count = %d\n\r", pulse_count);
		pulse_count = 0;
		start_time = timer_get_tick();
	}
}

Due date preponed

GPIO has to be programmed

The new gpio PC20 has been configured for sync-in and tested

@Mohan Kashyap :

A. Sync. In
Start acquisition with ext trigger input goes low or high or both edges where duration , interval and repetition count set by GUI
Command trigger type (rising, falling , both), duration, interval, count, sampling freq,....

B. Sync. out (this is always required)
a. Signal to be high during acq.