RNG interrupt handler is not called.
Using nrfx_rng library to generate random numbers.
VALRDY event is generated but interrupt handler nrfx_rng_irq_handler in library is not called.
Breakpoint not hit.
Despite EVENTS_VALRDY being set.
and INTENSET/ NVIC_ISER0 having correct values.
Code which sets up RNG using nrfx_rng library
ren_status_t generateRand(uint8_t * p_challenge)
{
ren_status_t return_value = RAND_ERROR;
static const nrfx_rng_config_t RNG_CONFIG = {
.error_correction = true,
.interrupt_priority = RNG_INTERRUPT_PRIORITY
};
assert(p_challenge != NULL);
challenge_pointer = p_challenge;
/* Reset random number counter. */
random_number_index = 0U;
/* Initialise random number generator. */
if (NRF_SUCCESS == nrfx_rng_init(&RNG_CONFIG, randomNumberEventHandler))
{
/* Start random number generator. */
nrfx_rng_start();
/* Wait for required number of random numbers to be generated. */
while(random_number_index < RAND_SIZE);
/* Stop random number generator. */
nrfx_rng_stop();
/* Uninitialise random number generator. */
nrfx_rng_uninit();
return_value = RAND_SUCCESS;
}
return return_value;
}
static void randomNumberEventHandler(uint8_t rng_data)
{
assert(challenge_pointer != NULL);
/* Store random number in appropriate location in challenge. */
rand_pointer[random_number_index] = rng_data;
/* Move on to next location. */
random_number_index++;
}
Any ideas ?
