When use the template_project(Which is in peripheral) which working only on debug conditions, without debug conditions which is not working

[chandru jasi]

Dear sir,

When use the template project(Which is in peripheral) for UART tx & rx is not working in without debug, but if i use base project(Like uart) file it is working as perfect, kindly provide the solutions it is very urgent.

Note: I'm using SDK ver-17

Regards

Chandru.A

[awneil]

Have you looked at the differences between the debug and non-debug configurations?

Are they different optimisation levels?

If changing optimisation levels breaks your code, it's usually a sign that the code is flawed - eg, missing necessary 'volatile' ...

Note that you can still use the debugger on a "non-debug" build ...

[chandru jasi]

Hi,

Here it is my code,

/**************************************************************************/
/*!
* \file main.c
* \brief:
*
* nRF52840 Using UART TX & RX in polling method communications
*
* \author CHANDRU.A
* \date 10th-April-2021
*/
/**************************************************************************/

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "app_uart.h"
#include "app_error.h"
#include "nrf_delay.h"
#include "nrf.h"
#include "bsp.h"
#include "nrf_uart.h"

#define UART_TX_BUFF_SIZE 128
#define UART_RX_BUFF_SIZE 128
#define UART_HWFC APP_UART_FLOW_CONTROL_DISABLED

//uint8_t * tx_data ="Welcome\n\r";
//uint8_t * tx_data ="ack by rx\n\r";

uint8_t tx_data[]="Hello world";
uint8_t size=sizeof(tx_data)/sizeof(tx_data[0]);

uint8_t rx_data[UART_RX_BUFF_SIZE];
char flag=0;
void uart_err_handle(app_uart_evt_type_t *p)
{

}
int main(void)
{
uint32_t err_code;
bsp_board_init(BSP_INIT_LEDS); // initialize leds
const app_uart_comm_params_t com_params =
{
RX_PIN_NUMBER,
TX_PIN_NUMBER,
RTS_PIN_NUMBER,
CTS_PIN_NUMBER,
UART_HWFC,
false,
NRF_UART_BAUDRATE_115200

};

APP_UART_FIFO_INIT(&com_params, UART_RX_BUFF_SIZE, UART_TX_BUFF_SIZE, uart_err_handle, APP_IRQ_PRIORITY_LOWEST, err_code);
APP_ERROR_CHECK(err_code);
printf("UART COMMUNICATIONS TEST\r\n");

while(true)
{
uint8_t cr;
static uint8_t index = 0;


for (uint32_t i = 0; i < strlen(tx_data); i++) // tx_data conatains the welcome message
{
while (app_uart_put(*(tx_data+i)) != NRF_SUCCESS); // transimit to PC this NRF success will be wait for '1' byte transmitted.

// printf("\r\n Transmitted=%c\n\r",tx_data[i]);
nrf_delay_ms(100);
}
printf("\n");
}

// while(app_uart_get(&cr) != NRF_SUCCESS); // wait here until it receives a char from pc

}

Which is working in uart project file folder, but which is not working when I use templet project folder

what is the issue sir?

Regards

Chandru.A

[awneil]

so what debugging have you done to find the issue?

[Vidar Berg]

chandru jasi said:

Which is working in uart project file folder, but which is not working when I use templet project folder

 Can you post some screenshots to help show what's not working?

Best regards,

Vidar

[chandru jasi]

 Dear sir,

good day!!

It is fixed 

When i comment this printf() statements it is working expected.

APP_UART_FIFO_INIT(&com_params, UART_RX_BUFF_SIZE, UART_TX_BUFF_SIZE, uart_err_handle, APP_IRQ_PRIORITY_LOWEST, err_code);
APP_ERROR_CHECK(err_code);
//printf("UART COMMUNICATIONS TEST\r\n");

Thanks for your support sir!!

Regards

Chandru.A