Hi
I am currently doing a project based on the nRF52840 MCU and evaluation board
as part of my project, I have used the LPComp module, and set it up to trigger on rising voltage
#define LPCOMP_REF NRF_LPCOMP_REF_EXT_REF0 //AIN0
#define AUD_DET NRF_LPCOMP_INPUT_1 //AIN1
nrf_drv_lpcomp_config_t config = NRF_DRV_LPCOMP_DEFAULT_CONFIG;
nrf_lpcomp_config_t hal_config;
hal_config.reference = LPCOMP_REF;
hal_config.detection = NRF_LPCOMP_DETECT_UP;
hal_config.hyst = NRF_LPCOMP_HYST_NOHYST;
config.hal = hal_config;
config.input = AUD_DET;
// initialize LPCOMP driver, from this point LPCOMP will be active and provided
// event handler will be executed when defined action is detected
errorCode = nrf_drv_lpcomp_init(&config, lpcomp_event_handler);
APP_ERROR_CHECK(errorCode);
nrf_drv_lpcomp_enable();
I have done so by following the LPComp example of the 15.3 SDK, which my project uses
I have tested the module and it seems to work
however, I am also recording LPComp events triggering when other modules are used (for example, when using LEDs or other GPIOs)
I have tried connecting both references together, grounding both, yet I still get LPComp events
I have also tested on two evaluation boards, so I know that the one I normally use isn't just faulty (unless both are faulty somehow)
Is there any reason for this behavior? anything I could test to try and figure out the cause?
if there is any more information I can provide to help with solving this, please let me know and I'll do my best to provide it
thanks in advance
