nrf51 lpcomp doesn't work

[gaminn]

Hi, this is how I initialize and enable LPCOMP

   nrf_drv_lpcomp_config_t lpcompconfig = {
     {NRF_LPCOMP_REF_SUPPLY_SEVEN_EIGHT, NRF_LPCOMP_DETECT_CROSS},
      APP_IRQ_PRIORITY_LOW,
      NRF_LPCOMP_INPUT_7};
   nrf_drv_lpcomp_init(&lpcompconfig, &lpcomphandler);
   nrf_drv_lpcomp_enable();

However, my

void lpcomphandler(nrf_lpcomp_event_t event);

is never called when I manually toggle P0.06 pin of nrf51 from GND to VCC, or from VCC to GND.

No matter whether I initialize and enable LPCOMP before or after softdevice initialization.

I use SDK9.0.0.

Can you please help?

[Wojtek]

One post describing problem is enough ;)

Looking on code you provided it looks fine, but we don't know if lpcomp is initialized correctly.

try this:

uint32_t err_code;
err_code = nrf_drv_lpcomp_init(&lpcompconfig, &lpcomphandler);

err_code should be 0. Otherwise, you should check what error is returned.

[gaminn]

I'm sorry, but I was unable to add a post (after posting it it wasn't listed on the main page). I don't know what the problem was... Regarding the lpcomp - initialization function returns 0.

[Wojtek]

Did you try with another reference? ex. 4/8?

[gaminn]

I changed the reference and the channel. Problem persists. Lpcomphandler() function is not fired even with NRF_LPCOMP_EVENT_READY event.

[Susheel Nuguru]

Any updates on this guys? just curious :)