nrf driver adc irq priority

[Phillip]

When i use the nrf_drv_adc with NRF_ADC_DEFAULT_CONFIG i get the following compile errors:

rf_drv_adc.h:127:27: error: 'ADC_CONFIG_IRQ_PRIORITY' undeclared here (not in a function)
.interrupt_priority = ADC_CONFIG_IRQ_PRIORITY \

nrf_drv_adc.c:31:54: note: in expansion of macro 'NRF_DRV_ADC_DEFAULT_CONFIG'
static const nrf_drv_adc_config_t m_default_config = NRF_DRV_ADC_DEFAULT_CONFIG;

Am i doing something wrong? I included the driver header. Do i need other includes?

[Eric]

I think you need to have a nrf_drv_config.h file in order for your code to run. Within it contains those defines needed.

Snippet from the file:

    /* SAADC */
#define SAADC_ENABLED 1

#if (SAADC_ENABLED == 1)
#define SAADC_CONFIG_RESOLUTION      NRF_SAADC_RESOLUTION_12BIT
#define SAADC_CONFIG_OVERSAMPLE      NRF_SAADC_OVERSAMPLE_DISABLED
#define SAADC_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
#endif

[Phillip]

Thank you for the quick response. I am using the NRF51 board and i already have a nrf_drv_config.h included.

From the file:

/* ADC */
#define ADC_ENABLED 0

#if (ADC_ENABLED == 1)
#define ADC_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
#endif

Do i need to define somewhere that i am using the NRF51?

[Phillip]

Found the answer in my own comment. Just needed to #define ADC_ENABLED 1, ofcourse.