how to display integer value on putty using uart?

Question

i was using the serial example in examples/peripheral/serial and i Want to display integer value int i=1234 on the serial terminal(putty).I want to convert the int value to string.

norin saiyed · Accepted Answer

Fullscreen 4628.main.c Download

/* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
 *
 * The information contained herein is property of Nordic Semiconductor ASA.
 * Terms and conditions of usage are described in detail in NORDIC
 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
 *
 * Licensees are granted free, non-transferable use of the information. NO
 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
 * the file.
 *
 */

/** @file
 * @defgroup uart_example_main main.c
 * @{
 * @ingroup uart_example
 * @brief UART Example Application main file.
 *
 * This file contains the source code for a sample application using UART.
 *
 */

#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"

//#define ENABLE_LOOPBACK_TEST  /**< if defined, then this example will be a loopback test, which means that TX should be connected to RX to get data loopback. */

#define MAX_TEST_DATA_BYTES     (15U)                /**< max number of test bytes to be used for tx and rx. */
#define UART_TX_BUF_SIZE 256                         /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256                         /**< UART RX buffer size. */

uint8_t temp[8] = {1,2,3,4,5,6,7,8};

void uart_event_handle(app_uart_evt_t * p_event)
{

}

/**@brief Function for initializing the UART.
 */
static void uart_init(void)
{
    uint32_t err_code;

    const app_uart_comm_params_t comm_params =
      {
        
				//default pin for 52
			.rx_pin_no    = RX_PIN_NUMBER,
			.tx_pin_no    = TX_PIN_NUMBER,
			
      //.tx_pin_no    = ARDUINO_A0_PIN ,  //, TX_PIN_NUMBER// //K - edit
				
		//	.rx_pin_no    = ARDUINO_A1_PIN  ,

        .rts_pin_no   = RTS_PIN_NUMBER,
        .cts_pin_no   = CTS_PIN_NUMBER,
        .flow_control = APP_UART_FLOW_CONTROL_DISABLED,
        .use_parity   = false,
        .baud_rate    = UART_BAUDRATE_BAUDRATE_Baud115200
      };

    APP_UART_FIFO_INIT(&comm_params,
                        UART_RX_BUF_SIZE,
                        UART_TX_BUF_SIZE,
                        uart_event_handle,
                        APP_IRQ_PRIORITY_LOW,
                        err_code);

    APP_ERROR_CHECK(err_code);
}




/**
 * @brief Function for main application entry.
 */
int main(void)
{
   uart_init();
	
	//printf("%d\r\n",variable);
	nrf_delay_ms(1000);
	uint16_t temp1 = 1234;
	for(;;){
	 for (int i = 0;i<7;i++)
    {
		printf("%d\r\n",temp1);

			nrf_delay_ms(1000);
		}
	}
}


/** @} */

how to display integer value on putty using uart?

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