What is error_code 4097 in sd_softdevice_enable?

[msquizzato]

Hello,
I updated a working project based on nRF52832_xxAA 32Mhz crystal, from SoftDevice S132 5.0.0 to 7.0.1,
(set preprocessor NRF_SD_BLE_API_VERSION=7)

now the sd_softdevice_enable returns error_code 4097

  0> -CLOCK_LF_SRC 1
  0> -CLOCK_LF_RC_CTIV 0
  0> -CLOCK_LF_RC_TEMP_CTIV 0
  0> -CLOCK_LF_ACCURACY 1
  0> ret_code 4097
  0> <error> app: Fatal error

I have already tried to change CLOCK_LF_ACCURACY but the error remains

[Vidar Berg]

Hi,

4097=0x1001 corresponds to NRF_ERROR_SDM_INCORRECT_INTERRUPT_CONFIGURATION which indicates that the App has enabled interrupt(s) with an interrupt priority reserved to the Softdevice. 

Note that the interrupt priorities are '0' (Highest) after a reset, so it must be set explicitly by the app code.

[msquizzato]

in sdk_config.h  are all  IRQ_PRIORITY 6 , it's incorrect?5344.sdk_config.h

[Vidar Berg]

6 is correct, but there must be an IRQ that's being enabled without being applied with the priority setting from sdk_config.h.

The interrupt has to be enabled before ble_stack_init() for this error to be triggered. So I suggest you go over initialization before ble_stack_init() and make sure you are configuring the correct priority for all interrupts that you have enabled up until this point.

[msquizzato]

118/5000

I removed the boot to avoid that different interrupts were initialized but the problem remained, what can I do?

[Vidar Berg]

Are you referring to the bootloader? That should not be necessary as the bootloader disables all interrupts before booting the main app. Are you initializing any peripherals before calling ble_stack_init() in your code?

[msquizzato]

these are all those used:

nrf_drv_twi_init = APP_IRQ_PRIORITY_MID = _PRIO_APP_MID = 3
nrfx_timer_init = NRFX_TIMER_DEFAULT_CONFIG_IRQ_PRIORITY = 6
nrfx_spi_init = SPI_DEFAULT_CONFIG_IRQ_PRIORITY = 6
nrfx_rtc_init = NRFX_RTC_DEFAULT_CONFIG_IRQ_PRIORITY = 6
nrfx_gpiote_init = NRFX_GPIOTE_CONFIG_IRQ_PRIORITY = 6
nrfx_power_clock_irq_init = NRFX_CLOCK_CONFIG_IRQ_PRIORITY 6
app_uart_init =APP_IRQ_PRIORITY_LOWEST = 7

I read that must be> 2 when using SoftDevice is it correct?

[msquizzato]

 If I comment "TIMER_Init" all works, why?

int main(void)
{	
	//Initialize the clock
    main_clock_init();
	//Initialize the gpio
	main_gpio_init();

    TIMER_Init();       //if I comment this all works, why?

	//Initialize the nrf log module
    main_log_init();

    {
        ret_code_t err_code;
        err_code = nrf_sdh_enable_request();
        if(err_code)
            SEGGER_RTT_printf(0,"err_code 0x%X",err_code);
        else    
            SEGGER_RTT_printf(0,"OK");
    }
    while(1);
} 


void TIMER_Init(void)
{
    uint32_t time_ticks;
    uint32_t err_code = NRF_SUCCESS;

    //Configure TIMER for 10ms interval
    nrf_drv_timer_config_t timer_cfg = NRF_DRV_TIMER_DEFAULT_CONFIG;
    timer_cfg.interrupt_priority = NRFX_TIMER_DEFAULT_CONFIG_IRQ_PRIORITY;
    err_code = nrf_drv_timer_init(&TIMER_SYS, &timer_cfg, timer_sys_event_handler);
    APP_ERROR_CHECK(err_code);
    time_ticks = nrf_drv_timer_ms_to_ticks(&TIMER_SYS, TIMER_PERIOD);
    nrf_drv_timer_extended_compare(
         &TIMER_SYS, NRF_TIMER_CC_CHANNEL0, time_ticks, NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK, true);
	nrf_drv_timer_enable(&TIMER_SYS);
}