doandel2.c

void  EXTI9_5_IRQHandler()
{

	EXTI_ClearITPendingBit(EXTI_LINE); // clear interrupt
	int pulse_width = TIM_GetCounter(TIM2) - PULSE_INTERVAL;

	if(pulse_width > SYNC_WIDTH) //sync pulse
		channel_index = 0;
	else {
		if(channel_index < NUM_OF_CHANNELS) {
			channels[channel_index] = pulse_width;
			channel_index++;
		}
	}
	TIM_SetCounter(TIM2, 0);
	/*
	char str[64]={};
	sprintf(str, "INT--------------------------------%d,%d,%d,%d\n\r",channels[0],channels[1],channels[2],channels[3] );
	c_common_usart_puts(USART2, str);
	*/
}