I have scoured the internet for solutions, and documentation. Everything that I've found has to do with ADC, so I thought that I would just convert it to the LPCOMP(they're intrinsically linked). I have initialised the IRQ correctly. I have also verified that the down event triggers, i have attached my code and a screen shot of the registers. Setting a breakpoint in the IRQ handler never breaks. The LEDs do not ever turn on/flash. This code is setup for GCC, but compiles in ARM and has the same issue(You need to change the name of the IRQ handler from LPCOMP_IRQHandler to LPCOMP_COMP_IRQHandler). Neither compiler nor debugger fixes the issue. Using SDK V6, S110 V7.
static void lpcomp_init(void){
NRF_LPCOMP->INTENSET = LPCOMP_INTENSET_DOWN_Enabled << LPCOMP_INTENSET_DOWN_Pos ;
sd_nvic_SetPriority(LPCOMP_IRQn, NRF_APP_PRIORITY_LOW);
sd_nvic_EnableIRQ(LPCOMP_IRQn);
NRF_LPCOMP->REFSEL = LPCOMP_REFSEL_REFSEL_SupplyThreeEighthsPrescaling << LPCOMP_REFSEL_REFSEL_Pos;
NRF_LPCOMP->PSEL = LPCOMP_PSEL_PSEL_AnalogInput6 << LPCOMP_PSEL_PSEL_Pos;
NRF_LPCOMP->ENABLE = LPCOMP_ENABLE_ENABLE_Enabled;
NRF_LPCOMP->POWER = 1;
NRF_LPCOMP->TASKS_START = 1;
}
void LPCOMP_IRQHandler(void){
///get the time since the measurement was started
uint8_t time_elapsed = read_sensor_timer();
static uint8_t switcher = 0;
if(switcher){
nrf_gpio_pin_set(CONNECTED_LED_PIN_NO);
nrf_gpio_pin_clear(ADVERTISING_LED_PIN_NO);
}else{
nrf_gpio_pin_set(ADVERTISING_LED_PIN_NO);
nrf_gpio_pin_clear(CONNECTED_LED_PIN_NO);
}
switcher ^= 1;
sensor_data[sensor_data_ptr++] = time_elapsed;
//Release the external crystal
sd_clock_hfclk_release();
}
