#include "include.h"
void ClearBitMask(unsigned char data reg,unsigned char data mask);
void WriteRawRC(unsigned char data Address, unsigned char data value);
void SetBitMask(unsigned char data reg,unsigned char data mask);
char PcdComMF522(unsigned char data Command,
unsigned char *pInData,
unsigned char data InLenByte,
unsigned char *pOutData,
unsigned int *pOutLenBit);
void CalulateCRC(unsigned char *pIndata,unsigned char data len,unsigned char *pOutData);
unsigned char ReadRawRC(unsigned char data Address);
void PcdAntennaOn(void);
void delay_ns(unsigned int data ns)
{
unsigned int data i;
for(i=0;i<ns;i++)
{
nop();
nop();
nop();
}
}
//------------------------------------------
// 读SPI数据
//------------------------------------------
unsigned char SPIReadByte(void)
{
unsigned char data SPICount; // Counter used to clock out the data
unsigned char data SPIData;
SPIData = 0;
for (SPICount = 0; SPICount < 8; SPICount++) // Prepare to clock in the data to be read
{
SPIData <<=1; // Rotate the data
CLR_SPI_CK; nop();nop(); // Raise the clock to clock the data out of the MAX7456
if(STU_SPI_MISO)
{
SPIData|=0x01;
}
SET_SPI_CK; nop();nop(); // Drop the clock ready for the next bit
} // and loop back
return (SPIData); // Finally return the read data
}
//------------------------------------------
// 写SPI数据
//------------------------------------------
void SPIWriteByte(unsigned char data SPIData)
{
unsigned char data SPICount; // Counter used to clock out the data
for (SPICount = 0; SPICount < 8; SPICount++)
{
if (SPIData & 0x80)
{
SET_SPI_MOSI;
}
else
{
CLR_SPI_MOSI;
} nop();nop();
CLR_SPI_CK;nop();nop();
SET_SPI_CK;nop();nop();
SPIData <<= 1;
}
}
/////////////////////////////////////////////////////////////////////
//功 能:寻卡
//参数说明: req_code[IN]:寻卡方式
// 0x52 = 寻感应区内所有符合14443A标准的卡
// 0x26 = 寻未进入休眠状态的卡
// pTagType[OUT]:卡片类型代码
// 0x4400 = Mifare_UltraLight
// 0x0400 = Mifare_One(S50)
// 0x0200 = Mifare_One(S70)
// 0x0800 = Mifare_Pro(X)
// 0x4403 = Mifare_DESFire
//返 回: 成功返回MI_OK
/////////////////////////////////////////////////////////////////////
char PcdRequest(unsigned char data req_code,unsigned char *pTagType)
{
char data status;
unsigned int data unLen;
unsigned char data ucComMF522Buf[MAXRLEN];
ClearBitMask(Status2Reg,0x08);
WriteRawRC(BitFramingReg,0x07);
SetBitMask(TxControlReg,0x03);
ucComMF522Buf[0] = req_code;
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,1,ucComMF522Buf,&unLen);
if ((status == MI_OK) && (unLen == 0x10))
{
*pTagType = ucComMF522Buf[0];
*(pTagType+1) = ucComMF522Buf[1];
}
else
{ status = MI_ERR; }
return status;
}
/////////////////////////////////////////////////////////////////////
//功 能:防冲撞
//参数说明: pSnr[OUT]:卡片序列号,4字节
//返 回: 成功返回MI_OK
/////////////////////////////////////////////////////////////////////
char PcdAnticoll(unsigned char *pSnr)
{
char data status;
unsigned char data i,snr_check=0;
unsigned int data unLen;
unsigned char data ucComMF522Buf[MAXRLEN];
ClearBitMask(Status2Reg,0x08);
WriteRawRC(BitFramingReg,0x00);
ClearBitMask(CollReg,0x80);
ucComMF522Buf[0] = PICC_ANTICOLL1;
ucComMF522Buf[1] = 0x20;
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,2,ucComMF522Buf,&unLen);
if (status == MI_OK)
{
for (i=0; i<4; i++)
{
*(pSnr+i) = ucComMF522Buf[i];
snr_check ^= ucComMF522Buf[i];
}
if (snr_check != ucComMF522Buf[i])
{ status = MI_ERR; }
}
SetBitMask(CollReg,0x80);
return status;
}
/////////////////////////////////////////////////////////////////////
//功 能:选定卡片
//参数说明: pSnr[IN]:卡片序列号,4字节
//返 回: 成功返回MI_OK
/////////////////////////////////////////////////////////////////////
char PcdSelect(unsigned char *pSnr)
{
char data status;
unsigned char data i;
unsigned int data unLen;
unsigned char data ucComMF522Buf[MAXRLEN];
ucComMF522Buf[0] = PICC_ANTICOLL1;
ucComMF522Buf[1] = 0x70;
ucComMF522Buf[6] = 0;
for (i=0; i<4; i++)
{
ucComMF522Buf[i+2] = *(pSnr+i);
ucComMF522Buf[6] ^= *(pSnr+i);
}
CalulateCRC(ucComMF522Buf,7,&ucComMF522Buf[7]);
ClearBitMask(Status2Reg,0x08);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,9,ucComMF522Buf,&unLen);
if ((status == MI_OK) && (unLen == 0x18))
{ status = MI_OK; }
else
{ status = MI_ERR; }
return status;
}
/////////////////////////////////////////////////////////////////////
//功 能:验证卡片密码
//参数说明: auth_mode[IN]: 密码验证模式
// 0x60 = 验证A密钥
// 0x61 = 验证B密钥
// addr[IN]:块地址
// pKey[IN]:密码
// pSnr[IN]:卡片序列号,4字节
//返 回: 成功返回MI_OK
/////////////////////////////////////////////////////////////////////
char PcdAuthState(unsigned char data auth_mode,unsigned char data addr,unsigned char *pKey,unsigned char *pSnr)
{
char data status;
unsigned int data unLen;
unsigned char data i,ucComMF522Buf[MAXRLEN];
ucComMF522Buf[0] = auth_mode;
ucComMF522Buf[1] = addr;
for (i=0; i<6; i++)
{ ucComMF522Buf[i+2] = *(pKey+i); }
for (i=0; i<6; i++)
{ ucComMF522Buf[i+8] = *(pSnr+i); }
// memcpy(&ucComMF522Buf[2], pKey, 6);
// memcpy(&ucComMF522Buf[8], pSnr, 4);
status = PcdComMF522(PCD_AUTHENT,ucComMF522Buf,12,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (!(ReadRawRC(Status2Reg) & 0x08)))
{ status = MI_ERR; }
return status;
}
/////////////////////////////////////////////////////////////////////
//功 能:读取M1卡一块数据
//参数说明: addr[IN]:块地址
// pData[OUT]:读出的数据,16字节
//返 回: 成功返回MI_OK
/////////////////////////////////////////////////////////////////////
char PcdRead(unsigned char data addr,unsigned char *pData)
{
char data status;
unsigned int data unLen;
unsigned char data i,ucComMF522Buf[MAXRLEN];
ucComMF522Buf[0] = PICC_READ;
ucComMF522Buf[1] = addr;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
if ((status == MI_OK) && (unLen == 0x90))
// { memcpy(pData, ucComMF522Buf, 16); }
{
for (i=0; i<16; i++)
{ *(pData+i) = ucComMF522Buf[i]; }
}
else
{ status = MI_ERR; }
return status;
}
/////////////////////////////////////////////////////////////////////
//功 能:命令卡片进入休眠状态
//返 回: 成功返回MI_OK
/////////////////////////////////////////////////////////////////////
char PcdHalt(void)
{
char data status;
unsigned int data unLen;
unsigned char data ucComMF522Buf[MAXRLEN];
ucComMF522Buf[0] = PICC_HALT;
ucComMF522Buf[1] = 0;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF5