Assertion failed saadc

[Stigui]

Hi,

    I'm coding a nrf55832, my code uses TWI, UART, SPI, app_timer, nrf_drv_timer. The code was going welle until i add the saadc. When i call the nrf_drv_saadc_init function,I have got this message error : <error> app: ASSERTION FAILED at ../../../../../nRF5_SDK_15.2.0_9412b96/integration/nrfx/nrfx_glue.h:107.  Wich is ASSERT(INTERRUPT_PRIORITY_IS_VALID(priority)); line.
    When I initialize saadc whithout initializing nrf_drv_timer the code runs well. When I initialize nrf_drv_timer without initializing saadc the code runs well, but there is a problem when I'm using both.
    I tried to change the IRQ_priority of timer/app_timer/uart/... It doesn't change anything. Anybody knows what can I do to solve this ?

Best Regards, 
Guillaume

[bjorn-spockeli]

Hi Guillaume, 

if you get an assert at  ASSERT(INTERRUPT_PRIORITY_IS_VALID(priority)); when calling nrf_drv_saadc_init() then it means that you have provided an invalid interrupt priority, i.e. 

#define INTERRUPT_PRIORITY_IS_VALID(pri) ((((pri) > 1) && ((pri) < 4)) || \
                                          (((pri) > 4) && ((pri) < 8)))

which interrupt priority did you set in the nrf_drv_saadc_config_t struct passed to nrf_drv_saadc_init()?

Best regards

Bjørn

[Ziyao Zhou]

I have encounter the same problems, I use priority 6. It seems that whatever priority is given, it still has these kind of problems. I guess there are some conflict between softdevice and SAADC, could you give me some advice:

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