Data after callback ?

[RixtronixLAB]

Dear Members,

How can i keep the data no being cut ?

before using call back function ,

after using call back function :

function :

call back from main :

 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();

Call back and process function :

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);
	

}
//##################################################################################################################
void	GPS_Process(void)
{

	nrf_libuarte_async_tx(&libuarte, (uint8_t*)line_buffer_GPS, sizeof(line_buffer_GPS));
}	

What do I miss here ? a size of data ?

Thanks

I call GPS_process in main(void) :

while (true)
    {
			 
			 GPS_Process();
			 nrf_delay_ms(5000);
	}		 

[Jørgen Holmefjord]

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?

RixtronixLAB said:

How to get systick ?

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

[RixtronixLAB]

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

[RixtronixLAB]

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 :

[RixtronixLAB]

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();

[RixtronixLAB]

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
    };

[RixtronixLAB]

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

Is my call back function taking too much time ? thanks