压缩包中的内容：
上位机以及完整程序在文件夹中，大家可自己下载
地址是：http://www.ruidan.com/bbs/dpj-19033-1.html
下面是接受端的源代码：
#include
#include "string.h"
//液晶块
#define LCM_RW P3_6 //定义引脚
#define LCM_RS P3_5
#define LCM_E P3_7
#define LCM_Data P1
#define Busy 0x80 //用于检测LCM状态字中的Busy标识
typedef int byte;
typedef unsigned int word;
void Read_Temp(void);
void mychar(char,char);
void WriteDataLCM(unsigned char WDLCM);
void WriteCommandLCM(unsigned char WCLCM,BuysC);
unsigned char ReadDataLCM(void);
unsigned char ReadStatusLCM(void);
void LCMInit(void);
void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData);
void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData);
void Delay5Ms(void);
void Delay400Ms(void);
void delay(word useconds)
{
for(;useconds>0;useconds--);
}
void mychar(char xx,char yy)
{
DisplayOneChar(0,0,0x54);
DisplayOneChar(1,0,0x65);
DisplayOneChar(2,0,0x6D);
DisplayOneChar(3,0,0x70);
DisplayOneChar(4,0,0x65);
DisplayOneChar(5,0,0x72);
DisplayOneChar(6,0,0x61);
DisplayOneChar(7,0,0x74);
DisplayOneChar(8,0,0x75);
DisplayOneChar(9,0,0x72);
DisplayOneChar(10,0,0x65);
DisplayOneChar(11,0,0x3A);
///////////////////////自定义字符
WriteCommandLCM(0x48, 0); //第一行
WriteDataLCM(0x06);
WriteCommandLCM(0x49, 0); //第2行
WriteDataLCM(0x09);
WriteCommandLCM(0x4a, 0); //第3
WriteDataLCM(0x09);
WriteCommandLCM(0x4b, 0); //第4
WriteDataLCM(0x06);
WriteCommandLCM(0x4c, 0); //第5
WriteDataLCM(0x00);
WriteCommandLCM(0x4d, 0); //第6
WriteDataLCM(0x00);
WriteCommandLCM(0x4e, 0); //第7
WriteDataLCM(0x00);
WriteCommandLCM(0x4f, 0); //第8
WriteDataLCM(0x00);
DisplayOneChar(xx,yy,0x01);
DisplayOneChar(xx+1,yy,0x43);
}
//写数据
void WriteDataLCM(unsigned char WDLCM)
{
ReadStatusLCM(); //检测忙
LCM_Data = WDLCM;
LCM_RS = 1;
LCM_RW = 0;
LCM_E = 0; //若晶振速度太高可以在这后加小的延时
LCM_E = 0; //延时
LCM_E = 1;
}
//写指令
void WriteCommandLCM(unsigned char WCLCM,BuysC) //BuysC为0时忽略忙检测
{
if (BuysC) ReadStatusLCM(); //根据需要检测忙
LCM_Data = WCLCM;
LCM_RS = 0;
LCM_RW = 0;
LCM_E = 0;
LCM_E = 0;
LCM_E = 1;
}
//读状态
unsigned char ReadStatusLCM(void)
{
LCM_Data = 0xFF;
LCM_RS = 0;
LCM_RW = 1;
LCM_E = 0;
LCM_E = 0;
LCM_E = 1;
while (LCM_Data & Busy); //检测忙信号
return(LCM_Data);
}
void LCMInit(void) //LCM初始化
{
LCM_Data = 0;
WriteCommandLCM(0x38,0); //三次显示模式设置，不检测忙信号
Delay5Ms();
WriteCommandLCM(0x38,0);
Delay5Ms();
WriteCommandLCM(0x38,0);
Delay5Ms();
WriteCommandLCM(0x38,1); //显示模式设置,开始要求每次检测忙信号
WriteCommandLCM(0x08,1); //关闭显示
WriteCommandLCM(0x01,1); //显示清屏
WriteCommandLCM(0x06,1); // 显示光标移动设置
WriteCommandLCM(0x0C,1); // 显示开及光标设置
}
//按指定位置显示一个字符
void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData)
{
Y &= 0x1;
X &= 0xF; //限制X不能大于15，Y不能大于1
if (Y) X |= 0x40; //当要显示第二行时地址码+0x40;
X |= 0x80; //算出指令码
WriteCommandLCM(X, 0); //这里不检测忙信号，发送地址码
WriteDataLCM(DData);
}
//按指定位置显示一串字符 ***原来的遇到空格0x20就不显示***
void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData)
{
unsigned char ListLength,j;
ListLength = strlen(DData);
Y &= 0x1;
X &= 0xF; //限制X不能大于15，Y不能大于1
if (X <= 0xF) //X坐标应小于0xF
{
for(j=0;j
DisplayOneChar(X, Y, DData[j]); //显示单个字符
X++;
}
}
}
//5ms延时
void Delay5Ms(void)
{
unsigned int TempCyc = 5552;
while(TempCyc--);
}
//400ms延时
void Delay400Ms(void)
{
unsigned char TempCycA = 5;
unsigned int TempCycB;
while(TempCycA--)
{
TempCycB=7269;
while(TempCycB--);
};
}
sbit W_IN = P2^1;
sbit W_OUT = P2^0;
unsigned char w_data;//接收时用于存储两次上升沿之间的时长,发送时存储前半周
unsigned char send_busy = 0;//存储发送时后半周
unsigned char recv_timer = 0;
bit w_stat, last_w_stat;
unsigned char jiffies=0;
void clock_timer(void) interrupt 1 using 1{
if (send_busy){
if(w_data){
w_data--;
w_stat = 0;
}else{
send_busy--;
w_stat = 1;
}
W_OUT = w_stat;
}else{
w_stat = W_IN;
if (w_stat != last_w_stat){
last_w_stat = w_stat;
if (w_stat){
w_data = recv_timer;
recv_timer = 0;
}
}
if (~recv_timer)//if(recv_busy != 0xff)
recv_timer++;
}
jiffies++;
}
void clock_init(void){
jiffies = 0;
TMOD=0x02;
TH0=TL0=0x0ce;//12M,50us
//TH0=TL0=0x7a;//16M
//TH0=TL0=0x75;//16.59M
//TH0=TL0=0x72;//17M
//TH0=TL0=0x37;//24M
//TH0=TL0=0x47;//22.1844M, 100us
//TH0=TL0=0xa3;//22.1844M, 50us
EA=1;
ET0=1;
TR0=1;
}
void init_serialcomm(void)
{
SC = 0x50; //SCON: serail mode 1, 8-bit UART, enable ucvr
TMOD |= 0x20; //TMOD: timer 1, mode 2, 8-bit reload
PCON |= 0x80; //SMOD=1;
TH1 = 0x0e6; //Baud:2400 fosc=11.0592MHz :f4
= 0x0e6;
//IE |= 0x90; //Enable Serial Interrupt
TR1 = 1; // timer 1 run
RI=0;
TI=1;
}
void serial_out(unsigned char d){
while(!TI);
TI=0;
SBUF=(d);
}
void send_string_com(unsigned char *str,int strlen)//串口程序
{ unsigned char sum;
unsigned char k=0;
//serial_out(02);
do
{ //sum^=*(str+k);
serial_out(*(str + k));
//serial_out('a');
k++;
} while(k < strlen);
//serial_out(sum);
//serial_out('e');
}
//等待指定长度的串行数据到达,超时值为每两个字节之间的间隔时间而非等待整个串的时间.
//超时单位为time_out * 100uS
bit wait_serial(unsigned char *p, unsigned char len, unsigned char time_out){
unsigned int time=jiffies;
unsigned char n=0;
do{
if (RI){
p[n++]=SBUF;
RI=0;
if(n==len)
return 0;
time=jiffies;
}
}while(jiffies-time < time_out);
return 1;
}
sys_init(){
clock_init();
init_serialcomm();
}
//=============================================================
//发送程序 开始
//=============================================================
#define _0_WH 8//低电平脉宽
#define PULS_1_WIDTH 16//高电平脉宽
#define PULS_HEAD_WIDTH 8//前导信号脉宽
#define PULS_ART_WIDTH 24//引导信号脉宽
#define PULS_STOP_WIDTH 8//结束码脉宽
#define PULS_HEAD_COUS 16//前导信号长度
unsigned char send_buf[16];
#define send_byts send_buf[0]//剩余字节数,发送完后为0
unsigned char sending_byte;//当前正在发送的字节
unsigned char send_byte_p;//已发送字节数(含正在发送的字节)
unsigned char send_bit_p;//当前正在发送的字节已发送位数(含正在发送的位)
#define SEND_PROGRENG 0x41
#define SEND_FAILED 0x21
#define SEND_SESS 0x31
unsigned char send_stat = 0;//发送程序当前状态,为0时正常
unsigned char head_counts;//前导信号(包括引导信号)
void start_send(){
send_byte_p = 0;
send_bit_p = 0;
send_stat = SEND_PROGRESSING;
head_coun
