ADC Interrupt not starting

RE: ADC Interrupt not starting

monpetit — Sat, 09 Jan 2016 04:52:51 GMT

You have to declare C linkage to ADC_IRQHandler().

#ifdef __cplusplus
extern "C" {
#endif
void ADC_IRQHandler(void)
{
    NRF_ADC->EVENTS_END = 0;
    adc_sample = NRF_ADC -> RESULT;
    adc_flag = 1;
}
#ifdef __cplusplus
}
#endif

RE: ADC Interrupt not starting

RK — Sat, 09 Jan 2016 01:35:57 GMT

Hit break in your debugger and see where you are. I also suspect that pc.printf() is what's actually hanging.

RE: ADC Interrupt not starting

JD Janssen — Fri, 08 Jan 2016 16:35:40 GMT

pc.fprint is using the mbed function to sent the string via series to the pc. After 2 seconds the chips stops sending "l" to the pc.

RE: ADC Interrupt not starting

Ole Bauck — Fri, 08 Jan 2016 16:19:01 GMT

I don't see anything wrong. Tried to run it in keil without the pc.printf, mbed.h, changed <nrf.h> to "nrf.h" and "nrf_delay.c" to "nrf_delay.h". I also added toggling of a led inside if (adc_flag == 1){...} and it blinked every 2 seconds. Maybe the problem is with the pc.printf(..)? How do you know it's not working?