uart_passthrough.c

// UART passthrough  with debug code
//
// Suzanna Lucarotti (c) 13/9/2017
//
// for use with the UoS3 Cubesat
//
// should effectively remove module, allowing testing of interfaces through board, with codes coming back converted into hex for clarity


#include "../firmware.h"

#include "inc/hw_memmap.h"
#include "inc/hw_types.h"

#include "driverlib/gpio.h"
#include "driverlib/pin_map.h"
#include "driverlib/sysctl.h"

#include <stdlib.h>
#include <stdarg.h>

#define GPS_SERIAL UART_GNSS
#define CAM_SERIAL UART_CAMERA

 // the actual main code

int main(void)
{  
  Board_init(); // start the board
 // WDT_kick(); // kick the watchdog 
 setupwatchdoginterrupt();
// UART at 115200, unreliable at 9600

  UART_init(CAM_SERIAL, 115200);  UART_puts(CAM_SERIAL,"UART_passthrough");
  UART_init(GPS_SERIAL, 9600); // UART_puts(GPS_SERIAL,"UART_passthrough");

   while(1) // infinite loop
 {
    char c; // echo back to sending port
    if (UART_getc_nonblocking(GPS_SERIAL,&c)) {UART_putc_nonblocking(CAM_SERIAL,c); } // input
    if (UART_getc_nonblocking(CAM_SERIAL,&c)) {UART_putc_nonblocking(GPS_SERIAL,c); } //output
   }
}