📄 text7.c
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#include "send.h"
void main(void)
{
bit searchcard_f=0,key_f=0,check_f=0,read_f=0,write_f=0;
bee=0;
TMOD = 0x20;
SCON = 0xd0;
TH1 = 250;
TL1 = 250;
TR1 = 1;
PCON = 0x80; // SMOD=1
EA = 0;
DE=0; //禁止发送，禁止接收
RE=1;
LCD_Init ();
while(!searchcard_f) //寻卡
{
write_f=0;
searchcard_f=search();
Delay_ms(5);
}
while(!key_f) //发送密码
{
searchcard_f=0;
key_f=password();
Delay_ms(5);
}
while(!check_f) //密码验证
{
key_f=0;
check_f=check_password();
Delay_ms(5);
}
while(!read_f) //读数据
{
check_f=0;
read_f=read();
Delay_ms(5);
}
DE=1; //允许发送，允许接收
RE=0;
Delay_ms(50);
while(!Transmit_f) //主从机通信
{
Transmit();
}
dataprocess();
DE=0; //禁止发送，禁止接收
RE=1;
Delay_ms(2);
while(!write_f) //写数据
{
read_f=0;
write_f=write();
bee=write_f;
Delay_ms(255);
Delay_ms(255);
bee=0;
}
Display();
Delay_ms(255);
while(1);
}
/********************寻卡过程*********************/
bit search()
{
uchar i;
TB8=1;
Send(SEARCHCARD[0]);
TB8=0;
Send(SEARCHCARD[1]);
Send(SEARCHCARD[2]);
Send(SEARCHCARD[3]);
TB8=1;
Send(SEARCHCARD[4]);
for(i=0;i<9;i++)
{
return_frame[i]=Receive();
if(return_frame[0]!=0x47)
return 0;
}
for(i=0;i<9;i++)
{
Send(return_frame[i]);
}
if(return_frame[2]!=0x00)
return 0;
else
{
return 1;
}
}
/***********************发送密码******************/
bit password()
{
uint i;
TB8=1;
Send(KEY[0]);
TB8=0;
Send(KEY[1]);
Send(KEY[2]);
Send(KEY[3]);
Send(KEY[4]);
TB8=1;
Send(KEY[5]);
Send(KEY[6]);
Send(KEY[7]);
Send(KEY[8]);
Send(KEY[9]);
Send(KEY[10]);
Send(KEY[11]);
for(i=0;i<5;i++)
{
return_frame[i]=Receive();
if(return_frame[0]!=0x47)
return 0;
}
if(return_frame[2]!=0x00)
return 0;
for(i=0;i<5;i++)
{
Send(return_frame[i]);
}
return 1;
}
/********************密码验证*********************/
bit check_password()
{
uchar i;
TB8=1;
Send(CHECK[0]);
TB8=0;
Send(CHECK[1]);
Send(CHECK[2]);
Send(CHECK[3]);
Send(CHECK[4]);
TB8=1;
Send(CHECK[5]);
for(i=0;i<5;i++)
{
return_frame[i]=Receive();
if(return_frame[0]!=0x47)
return 0;
}
if(return_frame[2]!=0x00)
return 0;
for(i=0;i<5;i++)
{
Send(return_frame[i]);
}
return 1;
}
/********************读卡*********************/
bit read()
{
uchar i;
TB8=1;
Send(READDATA[0]);
TB8=0;
Send(READDATA[1]);
Send(READDATA[2]);
Send(READDATA[3]);
TB8=1;
Send(READDATA[4]);
for(i=0;i<21;i++)
{
return_frame[i]=Receive();
if(return_frame[0]!=0x47)
return 0;
}
if(return_frame[2]!=0x00)
return 0;
for(i=0;i<21;i++)
{
Send(return_frame[i]);
}
DATA[0]=return_frame[4];
DATA[1]=return_frame[5];
DATA[2]=return_frame[6];
return 1;
}
/********************写卡*********************/
bit write()
{
uchar i;
TB8=1;
Send(WRITEDATA[0]);
TB8=0;
Send(WRITEDATA[1]);
Send(WRITEDATA[2]);
Send(WRITEDATA[3]);
TB8=1;
Send(WRITEDATA[4]);
TB8=0;
Send(WRITEDATA[5]);
Send(WRITEDATA[6]);
for(i=7;i<20;i++)
{
Send(WRITEDATA[i]);
}
TB8=0;
Send(WRITEDATA[20]);
for(i=0;i<5;i++)
{
return_frame[i]=Receive();
if(return_frame[0]!=0x47)
return 0;
}
for(i=0;i<5;i++)
{
Send(return_frame[i]);
}
if(return_frame[2]!=0x00)
return 0;
else
{
return 1;
}
}
/***************发送单字节数据********************/
void Send(uchar m)
{
TI = 0;
DE = 0;
RE = 0;
SBUF = m;
while(!TI);
TI = 0;
}
/***************接收单字节数据*******************/
uchar Receive()
{
uchar tmp,j=0,i;
DE = 1;
RE = 1;
RI = 0;
while ((!RI)&&j<200)
{
for(i=0;i<50;i++);
j++;
}
if(RI)
{
tmp = SBUF;
RI=0;
return tmp;
}
else
return 0xff;
}
/**********延时1ms程序*************/
void Delay_ms(uint count)
{
uchar i,j;
for(;count>0;count--)
{
for(j=2;j>0;j--)
for(i=0;i<248;i++)
;
}
}
/**********修改卡数据*************/
void dataprocess()
{
uchar k;
if(DATA[2]==0x0A)
{
DATA[2]=0x05; //修改为还车状态
}
else if(DATA[2]==0x05) //如果是还车状态的话，先扣费，再转为取车状态
{
if(DATA[0]!=0x00)
{
DATA[0]=DATA[0]-1;
DATA[2]=0x0A;
}
else
bee=1; //如果余额为0，蜂鸣器长鸣
}
for(k=0;k<3;k++)
{
WRITEDATA[4+k]=DATA[k];
}
if(DATA[2]==0x0A)
{
WRITEDATA[20]=0x97^DATA[0]+0x80;
}
else if(DATA[2]==0x05)
{
WRITEDATA[20]=0x98^DATA[0]+0x80;
}
}
/**********液晶显示余额及卡状态*************/
void Display()
{
Account[10]=DATA[0]/100%10+0x30;
Account[11]=DATA[0]/10%10+0x30;
Account[12]=DATA[0]%10+0x30;
Borrow_bicycle[4]=addr/100%10+0x30;
Borrow_bicycle[5]=addr/10%10+0x30;
Borrow_bicycle[6]=addr%10+0x30;
Return_bicycle[4]=addr/100%10+0x30;
Return_bicycle[5]=addr/10%10+0x30;
Return_bicycle[6]=addr%10+0x30;
if(DATA[2]==0x05)
{
LCD_Wcmd ( 0x01 );
OutWord(0x88, 8, Account);
OutWord(0x90, 8, Borrow_bicycle);
}
else if(DATA[2]==0x0a)
{
LCD_Wcmd ( 0x01 );
OutWord(0x88, 8, Account);
OutWord(0x90, 8, Return_bicycle);
}
Delay_ms(200);
Delay_ms(200);
}
void LCD_Busy () /*判断lcd是否处于忙状态，是返回1，否返回0*/
{
lcd_port = 0xff;
RS = 0;
RW = 1;
EN = 1;
while (rd);
EN = 0;
}
void LCD_Wcmd ( uchar cmd ) /*对lcd指令寄存器写显示控制命令字*/
{
LCD_Busy();
RS = 0;
RW = 0;
lcd_port = cmd; /*写指令到端口上*/
EN = 1;
_nop_ ();
EN = 0;
}
void LCD_Wdat ( uchar dat ) /*对lcd数据寄存器写显示数据*/
{
LCD_Busy();
RS = 1;
RW = 0;
lcd_port = dat; /*写数据到端口上*/
EN = 1;
_nop_ ();
EN = 0;
}
void LCD_Init () /*lcd初始化*/
{
LCD_Wcmd ( 0x30 ); /*功能设置*/
LCD_Wcmd ( 0x01 ); /*清屏*/
LCD_Wcmd ( 0x0c ); /*显示开，光标关，光标闪烁关*/
OutWord(0x80, 8, Wellcome);
OutWord(0x88, 8, Unit);
OutWord(0x90, 8, Design);
OutWord(0x98, 8, Time);
Delay_ms(200);
Delay_ms(200);
}
void OutWord( uchar place, uchar unit, uchar charcode[] ) /*输出中文或字符*/
{
uchar i;
LCD_Wcmd ( place );
for ( i=0; i < unit*2; i++)
LCD_Wdat ( charcode[i] );
}
void Transmit()
{
uchar tmp,i;
P1= 0xFF;
addr=P1;
tmp = addr-1;
i=0;
while(tmp!=addr)
{
uint j=0;
i++;
DE = 1;
RE = 1;
/* 发送从机地址 */
TI = 0;
TB8 = 1; // 发送地址帧
SBUF = addr;
while(!TI);
TI = 0;
DE = 0;
RE = 0;
RI=0;
/* 接收从机应答 */
while ((!RI)&&j<1000)
{
j++;
}
if(RI)
{
tmp = SBUF;
RI=0;
}
else if(i==10)
{
tmp=addr;
i=0;
}
}
/* 发送数据并接收校验信息，如果接收到SUCC，表示从机接收成功，否则将重新发送该组数据 */
tmp = ERR;
i=0;
while(tmp!=SUCC)
{
uint j=0;
i++;
DE = 1;
RE = 1;
TI = 0;
TB8 = 0;
SBUF =DATA[2];
while(!TI);
TI = 0; // 发送数据
DE = 0;
RE = 0;
RI = 0;
while ((!RI)&&j<1000)
{
j++;
}
if(RI)
{
tmp = SBUF;
if(tmp==SUCC)
{
Transmit_f=1;
}
else if(tmp==ERR)
{
tmp=SUCC;
LCD_Wcmd(0x01);
OutWord(0x88, 8, Transmit_error);
// Delay_ms(1000);
}
RI = 0;
}
else if(i==10)
{
tmp=SUCC;
i=0;
LCD_Wcmd(0x01);
OutWord(0x88, 8, Transmit_error);
// Delay_ms(1000);
}
}
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