Hi,
I am using nRF52832 pca10040 developement board. As I am begineer I dont know much about coding. I am using Eclipse IDE for developement. I want to transmit 1-10 numbers using UART communication. When data sent equal to data received then blink LED if not LED must be off.
I still working on it. Please suggest me complete code with supporting files to run code.
Please take a look and suggest what is wrong with the code. Correct code and resend if possible.
#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 MAX_TEST_DATA_BYTES (15U)
#define UART_TX_BUF_SIZE 256
#define UART_RX_BUF_SIZE 256
// UART error handler function.
void uart_error_handle(app_uart_evt_t * p_event)
{
if (p_event->evt_type == APP_UART_COMMUNICATION_ERROR)
{
APP_ERROR_HANDLER(p_event->data.error_communication);
}
else if (p_event->evt_type == APP_UART_FIFO_ERROR)
{
APP_ERROR_HANDLER(p_event->data.error_code);
}
}
// LED glow function: When data Transmitted is equal to data Received then LED glow up else stays off.
void led_blink()
{
bsp_board_leds_init();
while (true)
{
for (int i = 0; i < 1; i++)
{
bsp_board_led_invert(i);
nrf_delay_ms(500);
}
}
}
// UART transmit function.
#if ((Enable_UART_TxDecimalNumber==1) || (Enable_UART_TxFloatNumber==1))
void UART_Tx(uint32_t dec_no, uint8_t nod)
{
uint8_t i=0;
printf("\nEnter decimal no to transmit:");
scanf("\n%d", &dec_no);
if(dec_no==0) //decimal number to transmit
{
for(i=0; ((i<nod) && (i<max_dttx)); i++) //number of digits to transmit
a[i] = 0x00; //maximum number of digits to transmit
}
else if
{
for(i=0; i<nod; i++)
{
if(dec_no!=0)
{
a[i] = util_GetMod32(dec_no,10);
dec_no = dec_no/10;
}
else if( (nod == dttx) || (nod > max_dttx)) //total numbers to transmit
{
break;
}
else
{
a[i]=0;
}
}
}
while(i)
{
UART_TxChar(util_Dec2Ascii(a[i-1])); //Convert decimal to ASCII
i--;
}
void led_blink();
}
#endif
// main Function.
int main(void)
{
uint32_t err_code;
bsp_board_leds_init();
const app_uart_comm_params_t comm_params =
{
RX_PIN_NUMBER,
TX_PIN_NUMBER,
RTS_PIN_NUMBER,
CTS_PIN_NUMBER,
APP_UART_FLOW_CONTROL_ENABLED,
false,
UART_BAUDRATE_BAUDRATE_Baud19200
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_error_handle,
APP_IRQ_PRIORITY_LOWEST,
err_code);
APP_ERROR_CHECK(err_code);
UART_Tx();
return 0;
}
