projekty/Source/example1/src/uart.c

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/*
 * $Id: uart.c,v 1 2005/03/10 17:30:00 BorisK Exp $
 *
 * Copyright (C) 2004 ONTRACK s.r.o.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA    
 * 02111-1307, USA.
 *
 * [1] ARM-based Microcontroller LPC2119/2129/2194/2292/9994, "Preliminary User Manual", February 03, 2004
 *
 * Written by Boris Kralik <kralikbo@yahoo.com>, 2005
 *
 */
#include "uart.h"
#include "./include/lpc2119.h"
void
UARTInitialize(void){
  UART0_LCR = 0x83;/* 8 bit, 1 stop bit, no parity, enable DLAB */
  UART0_IER = 0;
  PCB_PINSEL0 |= 0x5;
  PCB_PINSEL0 &= 0X5;
  UART0_IIR = 7;
  UART0_FCR = 1;
  UART0_DLL = 0x4E;
  UART0_DLM = 0;
  UART0_LCR = 0x03;
#if 0
        UARTWriteStr("\n\ruart.c");
#else
        WD_Reset();
#endif
}
int UARTgetchar(int iType)  { /* Read character from Serial Port   */
  if (iType == 1)       //Wait
        while (!(UART0_LSR & 0x01))
#if 0
        printf("\n\rUARTgetchar(%d)",iType);
#else
        WD_Reset();
#endif
  return (UART0_RBR);
}

void UARTWriteChar(char ch){
          while(!(UART0_LSR & 0x20));
          UART0_THR = ch;
}
void UARTWriteStr(char *string){
        int i=0;
        do{
         UARTWriteChar(string[i++]);
        }while(string[i]!='\x0');
}
unsigned char UARTReadChar(void){
        while(!(UART0_LSR & 0x01));
#if 0
        printf("\n\r%c",UART0_RBR);
#endif
        return UART0_RBR; 
}

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