MCU.rar_C Builder

#include "reg52.h" #include "lcd.h" unsigned char Rec_Buffer[4]; #define DELAY_IIC_TIME 60 #define TRUE 1 #define FALSE 0 sbit SCL=P1^0; //时钟线 sbit SDA=P1^1; //数据线 unsigned int money; bit err_flag; //PC发送的命令 #define CardID_Addr 0x00 //卡号 地址 00~02 #define Password_Addr 0x0a //密码 0a~0d #define Money_Addr 0x0f //金额 0f~10 #define COM_RD_CARD 0x45 //上位机发的读卡命令 #define COM_WR_CARD 0x67 //上位机发的写卡命令 #define COM_ADD_MONEY 0xab //上位机发的充钱命令 #define COM_DEC_MONEY 0x89 //上位机发的扣钱命令 #define COM_WR_ERROR 0xdd //出错 #define FLAG_RD_OK 0x12 //上传的数据,表示读卡完毕 #define FLAG_WR_OK 0x34 //上传的数据,表示写卡完毕 #define FLAG_RD_ER 0x56 //上传的数据,表示读卡错误 #define FLAG_WR_ER 0x78 //上传的数据,表示写卡错误 #define FLAG_NO_MONEY 0x9a //卡上金额不足 #define FLAG_FULL_MONEY 0xbc //卡上金额过多 #define adr_mon_h 0x0f //钱的高位地址 #define adr_mon_l 0x10 unsigned char Card_num[]={"ID: "}; unsigned char Money_num[]={"MONEY: . "}; bit Check_Acknowledge(void); void I2C_Start(void); void I2C_Stop(void); unsigned char Read_One_Byte(unsigned char); unsigned char ReadI2CByte(void); void Send_0(void); void Send_1(void); void WriteI2CByte(unsigned char) ; void Write_One_Byte(unsigned char,unsigned char); /********** Function Definition 函数定义 ************/ void DELAY_IIC(unsigned int t) { while(t!=0) t--; } void I2C_Start(void) { SDA=1; SCL=1; DELAY_IIC(DELAY_IIC_TIME); SDA=0; DELAY_IIC(DELAY_IIC_TIME); SCL=0; DELAY_IIC(DELAY_IIC_TIME); } void I2C_Stop(void) { SDA=0; SCL=1; DELAY_IIC(DELAY_IIC_TIME); SDA=1; DELAY_IIC(DELAY_IIC_TIME); SCL=0; DELAY_IIC(DELAY_IIC_TIME); } void Send_0(void) { SDA=0; SCL=1; DELAY_IIC(DELAY_IIC_TIME); SCL=0; DELAY_IIC(DELAY_IIC_TIME); } void Send_1(void) { SDA=1; SCL=1; DELAY_IIC(DELAY_IIC_TIME); SCL=0; DELAY_IIC(DELAY_IIC_TIME); } bit Check_Acknowledge(void) { SDA=1; SCL=1; DELAY_IIC(DELAY_IIC_TIME/2); F0=SDA; DELAY_IIC(DELAY_IIC_TIME/2); SCL=0; DELAY_IIC(DELAY_IIC_TIME); if(F0==1) return FALSE; return TRUE; } void WriteI2CByte(unsigned char b) { char i; for(i=0;i<8;i++) if((b<<i)&0x80) Send_1(); else Send_0(); } unsigned char ReadI2CByte(void) { unsigned char b=0,i; for(i=0;i<8;i++) { SDA=1; SCL=1; DELAY_IIC(10); F0=SDA; DELAY_IIC(10); SCL=0; if(F0==1) { b=b<<1; b=b|0x01; } else b=b<<1; } return b; } /**********以下为读写24c02的函数**********/ void Write_One_Byte(unsigned char addr,unsigned char thedata) { bit acktemp=1; I2C_Start(); WriteI2CByte(0xa0); acktemp=Check_Acknowledge(); WriteI2CByte(addr); acktemp=Check_Acknowledge(); WriteI2CByte(thedata); acktemp=Check_Acknowledge(); I2C_Stop(); } unsigned char Read_One_Byte(unsigned char addr) { bit acktemp=1; unsigned char mydata; I2C_Start(); WriteI2CByte(0xa0); acktemp=Check_Acknowledge(); WriteI2CByte(addr); acktemp=Check_Acknowledge(); I2C_Start(); WriteI2CByte(0xa1); acktemp=Check_Acknowledge(); mydata=ReadI2CByte(); acktemp=Check_Acknowledge(); return mydata; I2C_Stop(); } char Num2Char(unsigned char ch) { if(ch<=9) return (ch+'0'); else return (ch-10+'a'); } void System_Init(void) { TMOD=0x21; //串行口初始化 TH1=0xfd;TL1=0xfd; //设定波特率 9600 PCON=0x00; TR1=1; //启动T1 SCON=0x50; //串行口工作在方式1，并允许接收 EA=1; ES=1; } void main(void) { System_Init(); //初始化 LCD_Init(); while(1) { //////////////此代码用来测试IIC读写///////////////// #ifdef _IIC_DUBG Write_One_Byte(0,2); //ADD0 写入数据2 Write_One_Byte(1,7); //ADD1 写入数据3 LCD_Wr_Char(0,0,Read_One_Byte(0)+'0'); //读取24C02 并在LM016显示 LCD_Wr_Char(1,0,Read_One_Byte(1)+'0'); #endif //////////////////IIC测试结束////////////////////////// Money_num[6]=((money/10000)%10)+'0'; Money_num[7]=((money/1000)%10)+'0'; Money_num[8]=((money/100)%10)+'0'; Money_num[9]=((money/10)%10)+'0'; Money_num[11]=(money%10)+'0'; LCD_Wr_String(0,0,Card_num); LCD_Wr_String(0,1,Money_num); } } //IC卡读和写子程序,中断 void rxdata(void) interrupt 4 using 0 { unsigned char i,j; unsigned char rdbuf[20]; //读取卡中的数据缓冲 unsigned char RxBuf[20]; //读取串口数据缓冲 EA=0; for(i=0;i<2;i++) ////读取命令,第一个字节为命令字节,第二个字节为在第二个字节之后还有多少个字节 { while(!RI); RI=0; RxBuf[i]=SBUF; } if(RxBuf[1]!=0) //如果字节数不是0，则继续读取剩余的数据 { for(i=0;i<RxBuf[1];i++) { while(!RI); RI=0; RxBuf[2+i]=SBUF; } } if(RxBuf[0]==COM_RD_CARD) //读卡命令 { err_flag=0; rdbuf[0]=Read_One_Byte(CardID_Addr); //读卡中的ID号 rdbuf[1]=Read_One_Byte(CardID_Addr+1); rdbuf[2]=Read_One_Byte(CardID_Addr+2); rdbuf[3]=Read_One_Byte(CardID_Addr+3); rdbuf[4]=Read_One_Byte(CardID_Addr+4); rdbuf[5]=Read_One_Byte(Money_Addr); rdbuf[6]=Read_One_Byte(Money_Addr+1); SBUF= COM_RD_CARD; //发送读卡命令返回PC while(!TI); TI=0; for(j=0;j<7;j++) //发送卡数据返回PC { SBUF=rdbuf[j]; while(!TI); TI=0; } Card_num[3]=(rdbuf[0]>>4) +'0'; Card_num[4]=(rdbuf[0]&0x0f) +'0'; Card_num[5]=(rdbuf[1]>>4) + '0'; Card_num[6]=(rdbuf[1]&0x0f) + '0'; Card_num[7]=(rdbuf[2]>>4) + '0'; Card_num[8]=(rdbuf[2]&0x0f) + '0'; Card_num[9]=(rdbuf[3]>>4) + '0'; Card_num[10]=(rdbuf[3]&0x0f) + '0'; Card_num[11]=(rdbuf[4]>>4) + '0'; Card_num[12]=(rdbuf[4]&0x0f) + '0'; money=rdbuf[5]*256+rdbuf[6]; } else if(RxBuf[0]==COM_WR_CARD) //写卡命令 { err_flag=0; Write_One_Byte(CardID_Addr,RxBuf[2]); //写卡号 Write_One_Byte(CardID_Addr+1,RxBuf[3]); Write_One_Byte(CardID_Addr+2,RxBuf[4]); Write_One_Byte(CardID_Addr+3,RxBuf[5]); Write_One_Byte(CardID_Addr+4,RxBuf[6]); Write_One_Byte(Money_Addr,RxBuf[7]); Write_One_Byte(Money_Addr+1,RxBuf[8]); SBUF=COM_WR_CARD;while(!TI);TI=0; SBUF=COM_WR_CARD;while(!TI);TI=0; SBUF=COM_WR_CARD;while(!TI);TI=0; /*if((Read_One_Byte(CardID_Addr)!=RxBuf[2]) ||(Read_One_Byte(CardID_Addr+1)!=RxBuf[3]) ||(Read_One_Byte(CardID_Addr+2)!=RxBuf[4]) ||(Read_One_Byte(CardID_Addr+3)!=RxBuf[5]) ||(Read_One_Byte(CardID_Addr+4)!=RxBuf[6])) err_flag=1; if(!err_flag) { SBUF=COM_WR_CARD;while(!TI);TI=0; SBUF=COM_WR_CARD;while(!TI);TI=0; SBUF=COM_WR_CARD;while(!TI);TI=0; SBUF=COM_WR_CARD;while(!TI);TI=0; } else { SBUF=COM_WR_ERROR; while(!TI); TI=0; } */ } else if(RxBuf[0]==COM_ADD_MONEY) //充钱命令 { err_flag=0; money=Read_One_Byte(Money_Addr)*256+Read_One_Byte(Money_Addr+1); money += (RxBuf[7]*256 + RxBuf[8]); if( Read_One_Byte(Money_Addr)!=(money/256) || Read_One_Byte(Money_Addr+1)!=(money%256)) err_flag=1; if(!err_flag) { SBUF=COM_ADD_MONEY; while(!TI); TI=0; }else { SBUF=COM_WR_ERROR; while(!TI); TI=0; } } else if(RxBuf[0]==COM_DEC_MONEY) { err_flag=0; money=Read_One_Byte(Money_Addr)*256+Read_One_Byte(Money_Addr+1); money -= (RxBuf[7]*256 + RxBuf[8]); Write_One_Byte(Money_Addr,money/256); Write_One_Byte(Money_Addr+1,money%256); if( Read_One_Byte(Money_Addr)!=(money/256) || Read_One_Byte(Money_Addr+1)!=(money%256)) err_flag=1; if(!err_flag) { SBUF=COM_DEC_MONEY; while(!TI); TI=0; }else { SBUF=COM_WR_ERROR; while(!TI); TI=0; } } EA=1; }