ERROR 8 [NRF_ERROR_INVALID_STATE] at ..\..\..\main.c:191

[wdliming]

0> <info> app: Blinky example started.
 0> <info> app: err_code = 8
 0> 
 0> <error> app: ERROR 8 [NRF_ERROR_INVALID_STATE] at ..\..\..\main.c:191
 0> PC at: 0x0002AA25
 0> <error> app: End of error report

i use debug mode and run the sample 2 channels ADC function

the code is like below

:

uint32_t err_code=0;
	//static uint32_t cnt=0;
	
	//nrf_saadc_value_t  saadc_val;
	uint16_t u16_saadc_val = 0;
	uint16_t u16_saadc_val_1 = 0;

	

	nrf_gpio_pin_toggle(LED_1);
	

    nrf_drv_saadc_sample();
	
	//NRF_LOG_INFO("err_code = %d\r\n", err_code);
	//NRF_LOG_INFO("m_buffer_pool[0] = %d,\tm_buffer_pool[1] = %d\r\n", m_buffer_pool[0], m_buffer_pool[1]);
	u16_saadc_val = m_buffer_pool[0];
	u16_saadc_val_1 = m_buffer_pool[1];
	
	
	err_code = ble_lbs_on_dht_change(m_conn_handle, &m_lbs, u16_saadc_val, u16_saadc_val_1);
	NRF_LOG_INFO("err_code = %d\r\n", err_code);
	//APP_ERROR_HANDLER(err_code);
	APP_ERROR_CHECK(err_code);
	
	if ((err_code != NRF_SUCCESS) &&
        (err_code != NRF_ERROR_INVALID_STATE) &&
        (err_code != BLE_ERROR_INVALID_CONN_HANDLE)&&
        (err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)		
        )
    {
        APP_ERROR_HANDLER(err_code);
    }

and any one can tell why does it happened??

thanks a lot!

[Sigurd]

Hi,

Could be that you are calling ble_lbs_on_dht_change() without being in a BLE connection.

Please try to remove this line marked with red: