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				C51编程:快帮帮我呀 [lsp9672] [50次] 01-12-28 上午 09:23:23
				各位大虾好，小生最近急需要使用一个C51的单片机底层串口程序，对这个串口程序的要求
				是一个独立的模块。因为我要把这个串口程序襄入到我的程序里面，通过PC机来监视程序运
				行中一些标志和变量的变化，不知道在那里能找到这样的串口程序呢？？？ 
				
				too easy [程咬金] [36次] 01-12-28 上午 11:13:57 
				/**
				*    Program Name: ser_int.c
				*
				*    Creation Date:    10.25.2001
				*
				*    Programmers:  Liu Limin
				*
				*    Modifications:
				*
				*    Comments:    ...
				*
				*    Copyright (c) 2001 by CoreLogic Communication, INC.
				*
				**/
				
				#include 
				#include 
				#include "ser_int.h"
				
				void SerInitialize() 
				{
				    SerFlags = 0;
				
				    FlagTransIdle = 1;
				    FlagCvtInCR = 1;         // want to turn CRs into LFs
				    RR_iHead = RR_iTail = RR_cLev = RR_cMax = 0;
				    TR_iHead = TR_iTail = TR_cLev = TR_cMax = 0;
				    UnGotCh = -1;
				// 
				//--- set up Timer 1 to produce serial rate 
				    T2CON = 0x30;
				//    T2MOD = 0x00;
				
				    SCON = 0x50;
				    PCON |= 0x00;
				    RCAP2H = 0xFF;
				    RCAP2L = 0xDC;
				    TR2 = 1;
				 //   ET2 = 1;
				    ES = 1;
				    EA = 1;
				}
				
				//---------------------------------------------------------------------------
				// Serial interrupt handler 
				
				void SerInt() interrupt 4 using 1
				{
				    if(RI) {
				        if(RR_cLev				            RRing[RR_iHead] = SBUF;
				            RR_iHead++;
				            RR_cLev++;
				            if(RR_iHead==INRINGSIZE) RR_iHead = 0;
				        }
				        RI = 0;
				    }
				    if(TI) {
				        if(TR_cLev) {
				            SBUF = TRing[TR_iTail];
				            TR_cLev--;
				            TR_iTail++;
				            if(TR_iTail==OUTRINGSIZE) TR_iTail = 0;
				        } else FlagTransIdle = 1;
				        TI = 0;
				    }
				}
				
				//---------------------------------------------------------------------------
				// Send character to ..... 
				
				void putch(unsigned char TransChar)
				{
				    putc(TransChar);
				    if(TransChar=='\n') putc('\r');
				}
				
				unsigned char putc(unsigned char TransChar)
				{
				    while(TR_cLev>=OUTRINGSIZE);     
				    ES = 0;
				    TRing[TR_iHead] = TransChar;     
				    TR_iHead++;                      
				    TR_cLev++;
				    if(TR_iHead==OUTRINGSIZE) TR_iHead = 0;
				    if(FlagTransIdle) {
				        FlagTransIdle = 0;              
				        TI = 1;
				    }
				    ES = 1;
				    return(TransChar);
				}
				
				unsigned char chkch()
				{
				    return(RR_cLev);
				}
				
				//---------------------------------------------------------------------------
				// Wait for the serial transmitter to go idle 
				
				void SerWaitOutDone()
				{
				    while(TR_cLev);
				    while(!FlagTransIdle);
				} 
				
				//---------------------------------------------------------------------------
				// Flush the input buffer 
				// Returns number of chars flushed 
				
				void SerFlushIn() 
				{
				    ES = 0;
				    RR_iTail = 0;
				    RR_iHead = 0;
				    RR_cLev = 0;
				    ES = 1;
				}
				
				//---------------------------------------------------------------------------
				// Get character from ....
				
				char getch()
				{
				    int RetVal;
				
				    ES = 0;
				    if(RR_cLev) {
				        RetVal = RRing[RR_iTail];
				        if(RetVal=='\r') RetVal = '\n';
				        RR_iTail++;
				        RR_cLev--;
				        if(RR_iTail==INRINGSIZE) RR_iTail = 0;
				    } else RetVal = -1;
				    ES = 1;
				    return(RetVal);
				}
				
				//---------------------------------------------------------------------------
				// Send string to ........
				// putstr(char *pString); 
				
				void putstr(unsigned char *pstring)
				{
				    while(*pstring) {
				        putch(*pstring);
				        pstring++;
				    }
				}
				
				void main(void)
				{
				    unsigned int ch = 0;
				  //  unsigned char char_cnt = 0;
				
				    SerFlushIn();
				    SerInitialize();
				    for(;;) {
				    
				        if(chkch()) {
				            ch = getch();
				        }
				        if(ch) {
				            putch(ch);
				           // char_cnt ++;
				        }
				/*        if(!(char_cnt % 40)) {
				            char_cnt = 0;
				            putstr("\n\r");
				        }
				     */ 
				  //   for(ch = 0; ch < 0x3fff; ch ++);
				    //    putstr("Calling Number : 5551212 !!!\n\r");
				        //SerWaitOutDone();
				    }
				}
				
				
				你有与这个程序配套的PC端的程序吗？？ [lsp9672] [2次] 01-12-28 下午 12:01:08 
				先谢谢你，你有与这个程序配套的PC端的程序吗？？我在PC端怎么观察我要监视的对象
				呢？？ 
				 
				
				 
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