Retarget.c

/*----------------------------------------------------------------------------
 * Name:    Retarget.c
 * Purpose: 'Retarget' layer for target-dependent low level functions
 * Notes:
 *----------------------------------------------------------------------------
 * This file is part of the uVision/ARM development tools.
 * This software may only be used under the terms of a valid, current,
 * end user licence from KEIL for a compatible version of KEIL software
 * development tools. Nothing else gives you the right to use this software.
 *
 * This software is supplied "AS IS" without warranties of any kind.
 *
 * Copyright (c) 2009 Keil - An ARM Company. All rights reserved.
 *----------------------------------------------------------------------------*/

#include <stdio.h>
#include <rt_misc.h>
#include "Serial.h"

#pragma import(__use_no_semihosting_swi)


/*----------------------------------------------------------------------------
  Write character to Serial Port
 *----------------------------------------------------------------------------*/
int sendchar (int c) {

  if (c == '\n')  {
    SER_putChar (0, 0x0D);
  }
  SER_putChar (0, c);

  return (c);
}


/*----------------------------------------------------------------------------
  Read character from Serial Port   (blocking read)
 *----------------------------------------------------------------------------*/
int getkey (void) {

  return (SER_getChar(0));
}


struct __FILE { int handle; /* Add whatever you need here */ };
FILE __stdout;
FILE __stdin;


int fputc(int ch, FILE *f) {
  return (sendchar(ch));
}


int fgetc(FILE *f) {
  return (getkey());
}


int ferror(FILE *f) {
  // Your implementation of ferror
  return EOF;
}


void _ttywrch(int ch) {
  sendchar(ch);
}


void _sys_exit(int return_code) {
label: goto label; // endless loop;
}