uart.c

来自「9E5无线单片机芯片的整个工程文件 已经在产品中使用」· C语言 代码 · 共 46 行

/*= uart.c =========================================================================================
 *
 * Copyright (C) 2004 Nordic Semiconductor
 *
 * This file is distributed in the hope that it will be useful, but WITHOUT WARRANTY OF ANY KIND.
 *
 * Author(s): Ole Saether
 *
 * COMPILER:
 *
 *   This program has been tested with Keil C51 V7.08 and 7.09
 *
 * $Revision: 3 $
 *
 *==================================================================================================
*/
#include "reg9e5.h"
#include "uart.h"
unsigned char Buf_1[5],Counter,NewData;
void InitUart(void)
{
    TH1 = 230;                       //9600  @16MHz (when T1M=1 and SMOD=1)                    
   // TH1 = 243;  					// 19200@16MHz (when T1M=1 and SMOD=1)
   // TH1 = 247;                    // 28800 16MHz (when T1M=1 and SMOD=1)                              
    CKCON |= 0x10;                  // T1M=1 (/4 timer clock)
    PCON = 0x80;                    // SMOD=1 (double baud rate)
    SCON = 0x52;                    // Serial mode1, enable receiver
    TMOD &= ~0x30;
    TMOD |= 0x20;                   // Timer1 8bit auto reload 
    TR1 = 1;                        // Start timer1
    P0_ALT |= 0x06;                 // Select alternate functions on pins P0.1 and P0.2
    P0_DIR |= 0x02;                 // P0.1 (RxD) is input 
    ES = 0;
}



void sPutChar(char c)
{
    TI = 0;
    SBUF = c;
    while(!TI)
        ;
}