got "SOFTDEVICE: INVALID MEMORY ACCESS" Error on nRF52840

RE: got "SOFTDEVICE: INVALID MEMORY ACCESS" Error on nRF52840

wen jin zhang — Tue, 06 Jul 2021 08:34:56 GMT

Sorry, Found real caused NRF_ERROR_SDM_INCORRECT_INTERRUPT_CONFIGURATION issue. Because we want use tinyUSB in Keil. we are use the "--gnu" compile option.

but this will cause nrf_section_iter_init() use these codes: it seem predefined "__GNUC__" macro

#if defined(__GNUC__)
p_iter->p_item = p_iter->p_set->section.p_start;
if (p_iter->p_item == p_iter->p_set->section.p_end)
{
p_iter->p_item = NULL;
}
#else

it'll cause missing disable POWER_CLOCK IRQ by sdh_state_observer_notify(NRF_SDH_EVT_STATE_ENABLE_PREPARE), because it can not found sdh_state_observers/....

RE: got "SOFTDEVICE: INVALID MEMORY ACCESS" Error on nRF52840

wen jin zhang — Tue, 06 Jul 2021 01:24:45 GMT

the reason of call nrf_drv_clock_init() before Enable SoftDevice is because the vPortSetupTimerInterrupt() call the nrf_drv_clock_lfclk_request(), but it call nrfx_clock_lfclk_start(), it'll write NRF_CLOCK peripheral registers. caused "SOFTDEVICE: INVALID MEMORY ACCESS" issue.

some config for Clock & Power :

#define NRFX_CLOCK_ENABLED 1

#define NRFX_CLOCK_CONFIG_LF_SRC 1

#define NRFX_CLOCK_CONFIG_IRQ_PRIORITY 6

#define NRF_CLOCK_ENABLED 1

#define CLOCK_CONFIG_LF_SRC 1

#define NRF_SDH_CLOCK_LF_SRC 1

#define CLOCK_CONFIG_IRQ_PRIORITY 6

#define NRFX_POWER_ENABLED 1

#define NRFX_POWER_CONFIG_IRQ_PRIORITY 6

#define POWER_ENABLED 1

#define POWER_CONFIG_IRQ_PRIORITY 6

mostly same as ble_app_hrs_freertos example. exception is the power.

RE: got "SOFTDEVICE: INVALID MEMORY ACCESS" Error on nRF52840

wen jin zhang — Mon, 05 Jul 2021 08:16:01 GMT

when I add initialize clock before Enable SoftDevice. like:
ret_code_t err_code = nrf_drv_clock_init();
APP_ERROR_CHECK(err_code);

...

err_code = nrf_sdh_enable_request(); // return error here
APP_ERROR_CHECK(err_code);

in nrf_sdh_enable_request(), the sd_softdevice_enable() return 0x1001(NRF_ERROR_SDM_INCORRECT_INTERRUPT_CONFIGURATION ) .

from https://devzone.nordicsemi.com/f/nordic-q-a/28063/softdevice_handler_init-returning-nrf_error_sdm_incorrect_interrupt_configuration description, it can not set Interrupt.

Question: what's limit for nrfx/nrf clock/power drivers with SoftDevice? How the SoftDevice Interrupt Vector takeover exist without cause NRF_ERROR_SDM_INCORRECT_INTERRUPT_CONFIGURATION error?