Receiving data from GPS L80 with nrf52832 via UART

[Utkarsh]

I am trying to receive data from GPS L80 with the nrf52832 board but I am not able to receive anything. I connected the Rx of nrf52832 with GPS and vice versa. I also connected the grounds of both these devices together. I am hereby attaching my code , Please help me regarding the same.

#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"

NRF_UART_Type uart1;

#define uart1_rx NRF_GPIO_PIN_MAP(0,22)
#define uart1_tx NRF_GPIO_PIN_MAP(0,23)

int main(void)
{
    nrf_uart_enable(&uart1);
    nrf_uart_txrx_pins_set(&uart1, 6, 8);
    nrf_uart_baudrate_set(&uart1,NRF_UART_BAUDRATE_115200);

char UART_RX_BUF[256];
int i=0;
    while (i<256)
    {   
        
        UART_RX_BUF[i] = nrf_uart_rxd_get(&uart1);
        i++;
    }

}

[awneil]

Utkarsh said:

I am giving the command  "$PMTK225,4*2F\r\n"

That is not what the code you posted had!

Utkarsh said:

I think  that by using this code "while (app_uart_put(txBuff[i]) != NRF_SUCCESS);" I am not able to send the command.

So what actually happens?

What do you see coming from the UART when you run the code?

Have you stepped the code in the debugger to see what is actually going on?