NEC Infrared Remote Not Working With Timer+DMA+UART

Suyog Buradkar · ‎2017-08-29

Posted on August 29, 2017 at 09:34

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waclawek.jan · ‎2017-08-30

Posted on August 30, 2017 at 17:20

void myNecRepeatCallback() {

char* msg = 'Repeat!\n';

HAL_UART_Transmit_DMA(&huart1, (uint8_t*) msg, strlen(msg));

HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);

HAL_Delay(10);

NEC_Read(&nec);

}

This callback is called from the timer ISR. I don't believe it's a good idea to transmit both from ISR and main().

JW