Custom board issue

[Juba Belgaid]

Hi,

We just received our custom board based nRF52832, below nRF52832 schematic

I succeed to flash the board. but i have frequency troubles. I made a simple exemple to verify this:

#define TIMEOUT_VALUE                    10                           /**< 10 microsecond timer time-out value. */

#define PIN_OUT 12


void timeout_handler(void * p_context)
{
        nrf_drv_gpiote_out_toggle(PIN_OUT);

}
 
int main(void)
{
	  ret_code_t err_code;

    err_code = nrf_drv_gpiote_init();
    APP_ERROR_CHECK(err_code);
    
    nrf_drv_gpiote_out_config_t out_config = GPIOTE_CONFIG_OUT_SIMPLE(false);

    err_code = nrf_drv_gpiote_out_init(PIN_OUT, &out_config);
    APP_ERROR_CHECK(err_code);

    err_code = app_simple_timer_init();
    APP_ERROR_CHECK(err_code);
                
		err_code = app_simple_timer_start(APP_SIMPLE_TIMER_MODE_REPEATED, 
													 timeout_handler, 
													 TIMEOUT_VALUE, 
													 NULL);            
		APP_ERROR_CHECK(err_code);    
    
    for (;;)
    {

    }    
}

When i run this example over Nordic DevKit PCA10040, i get a square wave with period of 20us. when i run the same example over our custom board, i get a square wave with period of ~17us.

Any idea of the cause of this trouble ? please.

Best regards.

[Juba Belgaid]

I have used the programm found here and solved my issue. it calibrate the internal HFCLK

Thank you for your help

[Juba Belgaid]

Now, i have issue when i try enabling soft device.

sd_softdevice_enable(p_clock_lf_cfg, softdevice_fault_handler);

never returns.

I need help please.

BR

[FormerMember]

Do you use one of the SDK examples? If not, could you test with an SDK example?

[Juba Belgaid]

i am using sdk Ble Uart