Data after callback ?

RE: Data after callback ?

Jørgen Holmefjord — Mon, 08 Feb 2021 16:29:29 GMT

[quote user="RixtronixLAB"]Is my call back function taking too much time ? thanks[/quote]

That is possible. You could try to move the processing outside of the lbUARTE event handler, by setting a flag in the handler and do the processing in main-loop. The processing inside the handler which runs in interrupt context will prevent other events with same/lower priority from being handled. This may cause issues in some cases.

It may also be easier to help you out if you post the full code. It is not easy to see exactly what happens in the application from the small code snippets.

RE: Data after callback ?

RixtronixLAB — Thu, 04 Feb 2021 15:49:45 GMT

Hi Jorgen, any clues ? let me know any other inputs you need ?

Is my call back function taking too much time ? thanks

RE: Data after callback ?

RixtronixLAB — Thu, 04 Feb 2021 11:28:44 GMT

Is it related with interrupt priority ?

I need to put GPS UART higher priority ?

Thanks

 nrf_libuarte_async_config_t nrf_libuarte_async_config = {
            .tx_pin     = TX_PIN_NUMBER,
            .rx_pin     = RX_PIN_NUMBER,
            .baudrate   = NRF_UARTE_BAUDRATE_115200,
            .parity     = NRF_UARTE_PARITY_EXCLUDED,
            .hwfc       = NRF_UARTE_HWFC_DISABLED,
            .timeout_us = 1000,
            .int_prio   = APP_IRQ_PRIORITY_LOW
    };
		
		nrf_libuarte_async_config_t nrf_libuarte_async_config1 = {
            .tx_pin     = SER_APP_TX_PIN,
            .rx_pin     = SER_APP_RX_PIN,
            .baudrate   = NRF_UARTE_BAUDRATE_9600,
            .parity     = NRF_UARTE_PARITY_EXCLUDED,
            .hwfc       = NRF_UARTE_HWFC_DISABLED,
            .timeout_us = 1000,
            .int_prio   = APP_IRQ_PRIORITY_LOW
    };

RE: Data after callback ?

RixtronixLAB — Thu, 04 Feb 2021 04:55:39 GMT

Yes I had init systick

int main(void)
{
    bsp_board_init(BSP_INIT_LEDS);
    
    ret_code_t ret = nrf_drv_clock_init();
    APP_ERROR_CHECK(ret);
  
    nrf_drv_clock_lfclk_request(NULL);

    //ret_code_t err_code = NRF_LOG_INIT(app_timer_cnt_get);
	  ret_code_t err_code = NRF_LOG_INIT(NULL);
    APP_ERROR_CHECK(err_code);
	
	  /* Init systick driver */
    nrf_drv_systick_init();

RE: Data after callback ?

RixtronixLAB — Wed, 03 Feb 2021 14:53:36 GMT

Code

 case NRF_LIBUARTE_ASYNC_EVT_RX_DATA:
					   //nrf_libuarte_async_tx(&libuarte, text2, text_size2);
				    nrf_libuarte_async_tx(&libuarte, p_evt->data.rxtx.p_data, p_evt->data.rxtx.length);
				    
				    //GPS_CallBack();

output :

code :

case NRF_LIBUARTE_ASYNC_EVT_RX_DATA:
					   //nrf_libuarte_async_tx(&libuarte, text2, text_size2);
				    //nrf_libuarte_async_tx(&libuarte, p_evt->data.rxtx.p_data, p_evt->data.rxtx.length);
				    
				    GPS_CallBack();
				    

typedef struct 
{
	uint8_t		rxBuffer[1024];
	uint16_t	rxIndex;
	uint8_t		rxTmp;	
	uint32_t	LastTime;	
	
	GPGGA_t		GPGGA;
	
}GPS_t;				    
				    
void	GPS_CallBack(void)
{
	
	
	GPS.LastTime=nrf_systick_val_get();
	
	
	
	
	if(GPS.rxIndex < sizeof(GPS.rxBuffer)-2)
	{
	
		GPS.rxBuffer[GPS.rxIndex] = GPS.rxTmp; 
		GPS.rxIndex++;
		memcpy((void *)line_buffer_GPS, GPS.rxBuffer, GPS.rxIndex); 
	}
   nrf_libuarte_async_rx_free(&libuarte1, (uint8_t *)&GPS.rxTmp, 1);
	 
	
	//DEBUG display on terminal :
	
	nrf_libuarte_async_tx(&libuarte, GPS.rxBuffer, sizeof(GPS.rxBuffer));

Output :

RE: Data after callback ?

RixtronixLAB — Wed, 03 Feb 2021 14:44:41 GMT

it's data in the buffer, it's cut when I use GPS_Callback() function ? and buffer is gone when I use GPS_process

RE: Data after callback ?

Jørgen Holmefjord — Wed, 03 Feb 2021 14:18:57 GMT

Hi,

Not sure I understand what you are asking. What are we looking at in the images? Is it the data in the buffer(s)? Output from UART? Something else?

[quote user="RixtronixLAB"]How to get systick ?[/quote]

There is a Blinky SysTick Example in the SDK, however this does not use the nrfx_systick_get() function. Did you init systick first?

Best regards,
Jørgen

RE: Data after callback ?

RixtronixLAB — Wed, 03 Feb 2021 00:02:45 GMT

How to get systick ?

void nrfx_systick_get(nrfx_systick_state_t * p_state)
{
p_state->time = nrf_systick_val_get();
}

any examples using that function ?

Thanks

RE: Data after callback ?

RixtronixLAB — Tue, 02 Feb 2021 15:00:27 GMT

And GPS.Lasttime = 0x00000, looks like

GPS.LastTime=nrf_systick_val_get();

not giving a result ??