C51上RC500读卡芯的驱动程序

#include "reg52.h" #include "string.h" #define uchar unsigned char #define uint unsigned int #define ulong unsigned long //define spi #define SPI_REN() IE0=0;EX0=1 #define SPI_RDIS() EX0=0 //spi Error #define SPI_OK 0 #define SPI_ERR 255 extern uchar spi_send(uchar idata *dp,uchar lenght); extern uchar spi_rcv(uchar idata *dp); extern uchar spi_init(void); uchar idata spi_buffer[26]; //define spi_buffer #define SEQNR 0 #define COMMAND 1 #define STATUS 1 #define LENGTH 2 #define MODE 3 #define BCNT 3 #define ADR 3 #define SERNR 3 #define SIZE 3 #define TIME 3 #define TAGTYPE 3 #define INFO 3 #define DATA 3 #define SECNR 4 #define DATABYTES 4 #define VALUE 4 #define NKEY 5 #define AUTHMODE 7 #define ADRCHKWR 8 #define DATACHKWR 9 bit bdata newdata=0; //mifare error #define MI_OK 0 #define MI_CRCERR 2 //Timer 0 #define OSC_FREQ 11059200L //MCU晶振频率 #define EVLT_50MS 65536L-OSC_FREQ/240L //50ms的初值 #define H_50MS EVLT_50MS>>8 #define L_50MS EVLT_50MS #define T0_evaluate() TH0=H_50MS;TL0=L_50MS; //TH1=0x2c;TL1=0xb0; void spi_int(void) interrupt 0 using 1 { spi_rcv(spi_buffer); newdata=1; } uchar zlg500cmd(uchar length) { uchar spi_wdg=10; uchar i,BCC_sum; spi_buffer[length]=spi_buffer[0]; for(i=1;i<length;i++) { spi_buffer[length]^=spi_buffer[i]; } spi_buffer[length]=~spi_buffer[length]; T0_evaluate(); if(spi_send(spi_buffer,length+1)!=SPI_OK) return SPI_ERR; ET0=0; TF0=0; TR0=1; SPI_REN(); while(newdata==0&&spi_wdg!=0) { if(TF0==1) { T0_evaluate();TF0=0; spi_wdg--; } } TR0=0; SPI_RDIS(); if(newdata==0) return SPI_ERR; newdata=0; BCC_sum=spi_buffer[0]; for(i=1;i<(spi_buffer[LENGTH]+3);i++) { BCC_sum^=spi_buffer[i]; } if(BCC_sum==~spi_buffer[spi_buffer[LENGTH]+3]) return SPI_OK; else return MI_CRCERR; } uchar mifs_request(uchar _Mode,uchar idata *_TagType) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x41; spi_buffer[LENGTH]=0x01; spi_buffer[MODE]=_Mode; if(zlg500cmd(4)!=SPI_OK) return SPI_ERR; if(spi_buffer[STATUS]==MI_OK) { _TagType[0]=spi_buffer[TAGTYPE]; _TagType[1]=spi_buffer[TAGTYPE+1]; } return spi_buffer[STATUS]; } uchar mifs_anticoll(uchar _Bcnt,uchar idata *_SNR) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x42; spi_buffer[LENGTH]=0x01; spi_buffer[MODE]=_Bcnt; if(zlg500cmd(4)!=SPI_OK) return SPI_ERR; if(spi_buffer[STATUS]==MI_OK) { memcpy(_SNR,&spi_buffer[SERNR],4); } return spi_buffer[STATUS]; } uchar mifs_select(uchar idata *_SNR,uchar idata *_Size) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x43; spi_buffer[LENGTH]=0x04; memcpy(&spi_buffer[SERNR],_SNR,4); if(zlg500cmd(7)!=SPI_OK) return SPI_ERR; if(spi_buffer[STATUS]==MI_OK) { *_Size=spi_buffer[SIZE]; } return spi_buffer[STATUS]; } uchar mifs_authentication(uchar _Mode,uchar _SecNr) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x44; spi_buffer[LENGTH]=0x02; spi_buffer[MODE]=_Mode; spi_buffer[SECNR]=_SecNr; if(zlg500cmd(5)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_authentication2(uchar _Mode,uchar _SecNr,uchar _KeyNr) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x72; spi_buffer[LENGTH]=0x03; spi_buffer[MODE]=_Mode; spi_buffer[SECNR]=_SecNr; spi_buffer[DATA+2]=_KeyNr; if(zlg500cmd(6)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_authKey(uchar _Mode,uchar _SecNr,uchar *_Key) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x73; spi_buffer[LENGTH]=0x08; spi_buffer[DATA]=_Mode; spi_buffer[DATA+1]=_SecNr; memcpy(&spi_buffer[DATA+2],_Key,6); if(zlg500cmd(11)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_halt(void) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x45; spi_buffer[LENGTH]=0x00; if(zlg500cmd(3)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_read(uchar _Adr,uchar idata *_Data) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x46; spi_buffer[LENGTH]=0x01; spi_buffer[ADR]=_Adr; if(zlg500cmd(4)!=SPI_OK) return SPI_ERR; if(spi_buffer[STATUS]==MI_OK) { memcpy(_Data,&spi_buffer[DATABYTES-1],16); } return spi_buffer[STATUS]; } uchar mifs_write(uchar _Adr,uchar idata *_Data) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x47; spi_buffer[LENGTH]=17; spi_buffer[ADR]=_Adr; memcpy(&spi_buffer[DATABYTES],_Data,16); if(zlg500cmd(20)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_increment(uchar _Adr,long idata *_Value) { uchar *temp=(uchar *)_Value; spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x48; spi_buffer[LENGTH]=5; spi_buffer[ADR]=_Adr; spi_buffer[VALUE]=*(temp+3); spi_buffer[VALUE+1]=*(temp+2); spi_buffer[VALUE+2]=*(temp+1); spi_buffer[VALUE+3]=*temp; if(zlg500cmd(8)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_decrement(uchar _Adr,long idata *_Value) { uchar *temp=(uchar *)_Value; spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x49; spi_buffer[LENGTH]=5; spi_buffer[ADR]=_Adr; spi_buffer[VALUE]=*(temp+3); spi_buffer[VALUE+1]=*(temp+2); spi_buffer[VALUE+2]=*(temp+1); spi_buffer[VALUE+3]=*temp; if(zlg500cmd(8)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_restore(uchar _Adr) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x4A; spi_buffer[LENGTH]=1; spi_buffer[ADR]=_Adr; if(zlg500cmd(4)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_transfer(uchar _Adr) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x4B; spi_buffer[LENGTH]=1; spi_buffer[ADR]=_Adr; if(zlg500cmd(4)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_load_key(uchar _Mode,uchar _SecNr,uchar *_Nkey) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x4C; spi_buffer[LENGTH]=0x08; spi_buffer[MODE]=_Mode; spi_buffer[SECNR]=_SecNr; memcpy(&spi_buffer[NKEY],_Nkey,6); if(zlg500cmd(11)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_reset(uchar _Msec) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x4E; spi_buffer[LENGTH]=1; spi_buffer[TIME]=_Msec; if(zlg500cmd(4)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_get_info(uchar idata *_Info) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x4F; spi_buffer[LENGTH]=0; if(zlg500cmd(3)!=SPI_OK) return SPI_ERR; if(spi_buffer[STATUS]==MI_OK) { memcpy(_Info,&spi_buffer[INFO],spi_buffer[LENGTH]); } return spi_buffer[STATUS]; } uchar mifs_close(void) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x3F; spi_buffer[LENGTH]=0; if(zlg500cmd(3)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_config(void) { spi_buffer[SEQNR]=0; spi_buffer[COMMAND]=0x52; spi_buffer[LENGTH]=0; if(zlg500cmd(3)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_check_write(uchar idata *_SNR,uchar _Authmode,uchar _Adr,uchar idata *_Data) { spi_buffer[0]=0; spi_buffer[COMMAND]=0x53; spi_buffer[LENGTH]=22; memcpy(&spi_buffer[SERNR],_SNR,4); spi_buffer[AUTHMODE]=_Authmode; spi_buffer[ADRCHKWR]=_Adr; memcpy(&spi_buffer[DATACHKWR],_Data,16); if(zlg500cmd(25)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } uchar mifs_set_control_bit() { spi_buffer[0]=0; spi_buffer[COMMAND]=0x50; spi_buffer[LENGTH]=0; if(zlg500cmd(3)!=SPI_OK) return SPI_ERR; return spi_buffer[STATUS]; } u