简易IC卡收费器单片机课程设计(7)

*/

/* WriteRawRC(GsNReg,0x88); //as default??? WriteRawRC(CWGsCfgReg,0x20); //as default???

WriteRawRC(ModGsCfgReg,0x20); //as default???

WriteRawRC(TReloadRegL,30);//tmoLength);// TReloadVal = 'h6a =tmoLength(dec)

// PcdSetTmo(106);

delay_10ms(1);

PcdAntennaOn(); }

else{ return -1; }

return MI_OK; }

///////////////////////////////////////////////////////////////////// //功 能：读RC632寄存器 //参数说明：Address[IN]:寄存器地址 //返 回：读出的值

///////////////////////////////////////////////////////////////////// unsigned char ReadRawRC(unsigned char Address) {

unsigned char i, ucAddr; unsigned char ucResult=0;

MF522_SCK = 0; MF522_NSS = 0;

ucAddr = ((Address<<1)&0x7E)|0x80;

for(i=8;i>0;i--) {

MF522_SI = ((ucAddr&0x80)==0x80); MF522_SCK = 1; ucAddr <<= 1; MF522_SCK = 0;

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WriteRawRC(TReloadRegH,0); WriteRawRC(TPrescalerReg,0x3E);

WriteRawRC(TModeReg,0x8D);

}

for(i=8;i>0;i--) {

MF522_SCK = 1; ucResult <<= 1;

ucResult|=(bit)MF522_SO; MF522_SCK = 0; }

MF522_NSS = 1; MF522_SCK = 1; return ucResult; }

///////////////////////////////////////////////////////////////////// //功 能：写RC632寄存器 //参数说明：Address[IN]:寄存器地址 // value[IN]:写入的值

/////////////////////////////////////////////////////////////////////

void WriteRawRC(unsigned char Address, unsigned char value) {

unsigned char i, ucAddr;

MF522_SCK = 0; MF522_NSS = 0;

ucAddr = ((Address<<1)&0x7E);

for(i=8;i>0;i--) {

MF522_SI = ((ucAddr&0x80)==0x80); MF522_SCK = 1; ucAddr <<= 1; MF522_SCK = 0; }

for(i=8;i>0;i--) {

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MF522_SI = ((value&0x80)==0x80); MF522_SCK = 1; value <<= 1; MF522_SCK = 0; }

MF522_NSS = 1; MF522_SCK = 1; }

///////////////////////////////////////////////////////////////////// //功 能：置RC522寄存器位 //参数说明：reg[IN]:寄存器地址 // mask[IN]:置位值

/////////////////////////////////////////////////////////////////////

void SetBitMask(unsigned char reg,unsigned char mask) {

char tmp = 0x0; tmp = ReadRawRC(reg);

WriteRawRC(reg,tmp | mask); // set bit mask }

///////////////////////////////////////////////////////////////////// //功 能：清RC522寄存器位 //参数说明：reg[IN]:寄存器地址 // mask[IN]:清位值

/////////////////////////////////////////////////////////////////////

void ClearBitMask(unsigned char reg,unsigned char mask) {

char tmp = 0x0; tmp = ReadRawRC(reg);

WriteRawRC(reg, tmp & ~mask); // clear bit mask }

///////////////////////////////////////////////////////////////////// //功 能：通过RC522和ISO14443卡通讯 //参数说明：Command[IN]:RC522命令字

// pInData[IN]:通过RC522发送到卡片的数据 // InLenByte[IN]:发送数据的字节长度

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// pOutData[OUT]:接收到的卡片返回数据 // *pOutLenBit[OUT]:返回数据的位长度 ///////////////////////////////////////////////////////////////////// char PcdComMF522(unsigned char Command, unsigned char *pInData, unsigned char InLenByte, unsigned char *pOutData, unsigned int *pOutLenBit) {

char status = MI_ERR; unsigned char irqEn = 0x00; unsigned char waitFor = 0x00; unsigned char lastBits; unsigned char n; unsigned int i; switch (Command) {

case PCD_AUTHENT: irqEn = 0x12; waitFor = 0x10; break;

case PCD_TRANSCEIVE: irqEn = 0x77; waitFor = 0x30; break; default: break; }

WriteRawRC(ComIEnReg,irqEn|0x80); ClearBitMask(ComIrqReg,0x80); WriteRawRC(CommandReg,PCD_IDLE); SetBitMask(FIFOLevelReg,0x80);

for (i=0; i

{ WriteRawRC(FIFODataReg, pInData[i]); WriteRawRC(CommandReg, Command);

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}

if (Command == PCD_TRANSCEIVE) { SetBitMask(BitFramingReg,0x80); }

// i = 600;//根据时钟频率调整，操作M1卡最大等待时间25ms i = 2000; do {

n = ReadRawRC(ComIrqReg); i--; }

while ((i!=0) && !(n&0x01) && !(n&waitFor)); ClearBitMask(BitFramingReg,0x80);

if (i!=0) {

if(!(ReadRawRC(ErrorReg)&0x1B)) {

status = MI_OK; if (n & irqEn & 0x01)

{ status = MI_NOTAGERR; } if (Command == PCD_TRANSCEIVE) {

n = ReadRawRC(FIFOLevelReg);

lastBits = ReadRawRC(ControlReg) & 0x07; if (lastBits)

{ *pOutLenBit = (n-1)*8 + lastBits; } else

{ *pOutLenBit = n*8; } if (n == 0) { n = 1; } if (n > MAXRLEN) { n = MAXRLEN; } for (i=0; i

{ pOutData[i] = ReadRawRC(FIFODataReg); } } else

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}