這是野火的代碼,自己改了以后,可以直插直用,有問題,評論區見
單片機源程序如下:
- #include "rc522_function.h"
- #include "rc522_config.h"
- #include "stm32f10x.h"
- #include "bsp_SysTick.h"
- #define RC522_DELAY() Delay_us ( 200 )
- /**
- * @brief 向RC522發送1 Byte 數據
- * @param byte,要發送的數據
- * @retval RC522返回的數據
- */
- void SPI_RC522_SendByte ( uint8_t byte )
- {
- uint8_t counter;
- for(counter=0;counter<8;counter++)
- {
- if ( byte & 0x80 )
- RC522_MOSI_1 ();
- else
- RC522_MOSI_0 ();
-
- RC522_DELAY();
- RC522_SCK_0 ();
-
- RC522_DELAY();
- RC522_SCK_1();
-
- RC522_DELAY();
- byte <<= 1;
- }
- }
- /**
- * @brief 從RC522發送1 Byte 數據
- * @param 無
- * @retval RC522返回的數據
- */
- uint8_t SPI_RC522_ReadByte ( void )
- {
- uint8_t counter;
- uint8_t SPI_Data;
- for(counter=0;counter<8;counter++)
- {
- SPI_Data <<= 1;
- RC522_SCK_0 ();
-
- RC522_DELAY();
- if ( RC522_MISO_GET() == 1)
- SPI_Data |= 0x01;
-
- RC522_DELAY();
- RC522_SCK_1 ();
-
- RC522_DELAY();
- }
- return SPI_Data;
-
- }
- /**
- * @brief 讀RC522寄存器
- * @param ucAddress,寄存器地址
- * @retval 寄存器的當前值
- */
- uint8_t ReadRawRC ( uint8_t ucAddress )
- {
- uint8_t ucAddr, ucReturn;
-
- ucAddr = ( ( ucAddress << 1 ) & 0x7E ) | 0x80;
- RC522_CS_Enable();
-
- SPI_RC522_SendByte ( ucAddr );
- ucReturn = SPI_RC522_ReadByte ();
-
- RC522_CS_Disable();
-
- return ucReturn;
- }
- /**
- * @brief 寫RC522寄存器
- * @param ucAddress,寄存器地址
- * @param ucValue,寫入寄存器的值
- * @retval 無
- */
- void WriteRawRC ( uint8_t ucAddress, uint8_t ucValue )
- {
- uint8_t ucAddr;
-
- ucAddr = ( ucAddress << 1 ) & 0x7E;
- RC522_CS_Enable();
-
- SPI_RC522_SendByte ( ucAddr );
- SPI_RC522_SendByte ( ucValue );
-
- RC522_CS_Disable();
- }
- /**
- * @brief 對RC522寄存器置位
- * @param ucReg,寄存器地址
- * @param ucMask,置位值
- * @retval 無
- */
- void SetBitMask ( uint8_t ucReg, uint8_t ucMask )
- {
- uint8_t ucTemp;
- ucTemp = ReadRawRC ( ucReg );
- WriteRawRC ( ucReg, ucTemp | ucMask ); // set bit mask
- }
- /**
- * @brief 對RC522寄存器清位
- * @param ucReg,寄存器地址
- * @param ucMask,清位值
- * @retval 無
- */
- void ClearBitMask ( uint8_t ucReg, uint8_t ucMask )
- {
- uint8_t ucTemp;
- ucTemp = ReadRawRC ( ucReg );
- WriteRawRC ( ucReg, ucTemp & ( ~ ucMask) ); // clear bit mask
- }
- /**
- * @brief 開啟天線
- * @param 無
- * @retval 無
- */
- void PcdAntennaOn ( void )
- {
- uint8_t uc;
- uc = ReadRawRC ( TxControlReg );
- if ( ! ( uc & 0x03 ) )
- SetBitMask(TxControlReg, 0x03);
- }
- /**
- * @brief 關閉天線
- * @param 無
- * @retval 無
- */
- void PcdAntennaOff ( void )
- {
- ClearBitMask ( TxControlReg, 0x03 );
- }
- /**
- * @brief 復位RC522
- * @param 無
- * @retval 無
- */
- void PcdReset ( void )
- {
- RC522_Reset_Disable();
- Delay_us ( 1 );
-
- RC522_Reset_Enable();
- Delay_us ( 1 );
-
- RC522_Reset_Disable();
- Delay_us ( 1 );
-
- WriteRawRC ( CommandReg, 0x0f );
-
- while ( ReadRawRC ( CommandReg ) & 0x10 );
-
- Delay_us ( 1 );
-
- //定義發送和接收常用模式 和Mifare卡通訊,CRC初始值0x6363
- WriteRawRC ( ModeReg, 0x3D );
-
- WriteRawRC ( TReloadRegL, 30 ); //16位定時器低位
- WriteRawRC ( TReloadRegH, 0 ); //16位定時器高位
-
- WriteRawRC ( TModeReg, 0x8D ); //定義內部定時器的設置
-
- WriteRawRC ( TPrescalerReg, 0x3E ); //設置定時器分頻系數
-
- WriteRawRC ( TxAutoReg, 0x40 ); //調制發送信號為100%ASK
-
- }
- /**
- * @brief 設置RC522的工作方式
- * @param ucType,工作方式
- * @retval 無
- */
- void M500PcdConfigISOType ( uint8_t ucType )
- {
- if ( ucType == 'A') //ISO14443_A
- {
- ClearBitMask ( Status2Reg, 0x08 );
-
- WriteRawRC ( ModeReg, 0x3D ); //3F
-
- WriteRawRC ( RxSelReg, 0x86 ); //84
-
- WriteRawRC( RFCfgReg, 0x7F ); //4F
-
- WriteRawRC( TReloadRegL, 30 );
-
- WriteRawRC ( TReloadRegH, 0 );
-
- WriteRawRC ( TModeReg, 0x8D );
-
- WriteRawRC ( TPrescalerReg, 0x3E );
-
- Delay_us ( 2 );
-
- PcdAntennaOn ();//開天線
-
- }
- }
- /**
- * @brief 通過RC522和ISO14443卡通訊
- * @param ucCommand,RC522命令字
- * @param pInData,通過RC522發送到卡片的數據
- * @param ucInLenByte,發送數據的字節長度
- * @param pOutData,接收到的卡片返回數據
- * @param pOutLenBit,返回數據的位長度
- * @retval 狀態值= MI_OK,成功
- */
- char PcdComMF522 ( uint8_t ucCommand,
- uint8_t * pInData,
- uint8_t ucInLenByte,
- uint8_t * pOutData,
- uint32_t * pOutLenBit )
- {
- char cStatus = MI_ERR;
- uint8_t ucIrqEn = 0x00;
- uint8_t ucWaitFor = 0x00;
- uint8_t ucLastBits;
- uint8_t ucN;
- uint32_t ul;
- switch ( ucCommand )
- {
- case PCD_AUTHENT: //Mifare認證
- ucIrqEn = 0x12; //允許錯誤中斷請求ErrIEn 允許空閑中斷IdleIEn
- ucWaitFor = 0x10; //認證尋卡等待時候 查詢空閑中斷標志位
- break;
-
- case PCD_TRANSCEIVE: //接收發送 發送接收
- ucIrqEn = 0x77; //允許TxIEn RxIEn IdleIEn LoAlertIEn ErrIEn TimerIEn
- ucWaitFor = 0x30; //尋卡等待時候 查詢接收中斷標志位與 空閑中斷標志位
- break;
-
- default:
- break;
- }
- //IRqInv置位管腳IRQ與Status1Reg的IRq位的值相反
- WriteRawRC ( ComIEnReg, ucIrqEn | 0x80 );
- //Set1該位清零時,CommIRqReg的屏蔽位清零
- ClearBitMask ( ComIrqReg, 0x80 );
- //寫空閑命令
- WriteRawRC ( CommandReg, PCD_IDLE );
-
- //置位FlushBuffer清除內部FIFO的讀和寫指針以及ErrReg的BufferOvfl標志位被清除
- SetBitMask ( FIFOLevelReg, 0x80 );
- for ( ul = 0; ul < ucInLenByte; ul ++ )
- WriteRawRC ( FIFODataReg, pInData [ ul ] ); //寫數據進FIFOdata
-
- WriteRawRC ( CommandReg, ucCommand ); //寫命令
- if ( ucCommand == PCD_TRANSCEIVE )
-
- //StartSend置位啟動數據發送 該位與收發命令使用時才有效
- SetBitMask(BitFramingReg,0x80);
- ul = 1000; //根據時鐘頻率調整,操作M1卡最大等待時間25ms
- do //認證 與尋卡等待時間
- {
- ucN = ReadRawRC ( ComIrqReg ); //查詢事件中斷
- ul --;
- } while ( ( ul != 0 ) && ( ! ( ucN & 0x01 ) ) && ( ! ( ucN & ucWaitFor ) ) );
- ClearBitMask ( BitFramingReg, 0x80 ); //清理允許StartSend位
- if ( ul != 0 )
- {
- //讀錯誤標志寄存器BufferOfI CollErr ParityErr ProtocolErr
- if ( ! ( ReadRawRC ( ErrorReg ) & 0x1B ) )
- {
- cStatus = MI_OK;
-
- if ( ucN & ucIrqEn & 0x01 ) //是否發生定時器中斷
- cStatus = MI_NOTAGERR;
-
- if ( ucCommand == PCD_TRANSCEIVE )
- {
- //讀FIFO中保存的字節數
- ucN = ReadRawRC ( FIFOLevelReg );
-
- //最后接收到得字節的有效位數
- ucLastBits = ReadRawRC ( ControlReg ) & 0x07;
-
- if ( ucLastBits )
-
- //N個字節數減去1(最后一個字節)+最后一位的位數 讀取到的數據總位數
- * pOutLenBit = ( ucN - 1 ) * 8 + ucLastBits;
- else
- * pOutLenBit = ucN * 8; //最后接收到的字節整個字節有效
-
- if ( ucN == 0 )
- ucN = 1;
-
- if ( ucN > MAXRLEN )
- ucN = MAXRLEN;
-
- for ( ul = 0; ul < ucN; ul ++ )
- pOutData [ ul ] = ReadRawRC ( FIFODataReg );
-
- }
- }
- else
- cStatus = MI_ERR;
- }
- SetBitMask ( ControlReg, 0x80 ); // stop timer now
- WriteRawRC ( CommandReg, PCD_IDLE );
-
- return cStatus;
- }
- /**
- * @brief 尋卡
- * @param ucReq_code,尋卡方式 = 0x52,尋感應區內所有符合14443A標準的卡;
- 尋卡方式= 0x26,尋未進入休眠狀態的卡
- * @param pTagType,卡片類型代碼
- = 0x4400,Mifare_UltraLight
- = 0x0400,Mifare_One(S50)
- = 0x0200,Mifare_One(S70)
- = 0x0800,Mifare_Pro(X))
- = 0x4403,Mifare_DESFire
- * @retval 狀態值= MI_OK,成功
- */
- char PcdRequest ( uint8_t ucReq_code, uint8_t * pTagType )
- {
- char cStatus;
- uint8_t ucComMF522Buf [ MAXRLEN ];
- uint32_t ulLen;
- //清理指示MIFARECyptol單元接通以及所有卡的數據通信被加密的情況
- ClearBitMask ( Status2Reg, 0x08 );
- //發送的最后一個字節的 七位
- WriteRawRC ( BitFramingReg, 0x07 );
- //TX1,TX2管腳的輸出信號傳遞經發送調制的13.56的能量載波信號
- SetBitMask ( TxControlReg, 0x03 );
- ucComMF522Buf [ 0 ] = ucReq_code; //存入 卡片命令字
- cStatus = PcdComMF522 ( PCD_TRANSCEIVE,
- ucComMF522Buf,
- 1,
- ucComMF522Buf,
- & ulLen ); //尋卡
- if ( ( cStatus == MI_OK ) && ( ulLen == 0x10 ) ) //尋卡成功返回卡類型
- {
- * pTagType = ucComMF522Buf [ 0 ];
- * ( pTagType + 1 ) = ucComMF522Buf [ 1 ];
- }
- else
- cStatus = MI_ERR;
- return cStatus;
- }
- /**
- * @brief 防沖撞
- * @param pSnr,卡片序列號,4字節
- * @retval 狀態值= MI_OK,成功
- */
- char PcdAnticoll ( uint8_t * pSnr )
- {
- char cStatus;
- uint8_t uc, ucSnr_check = 0;
- uint8_t ucComMF522Buf [ MAXRLEN ];
- uint32_t ulLen;
-
- //清MFCryptol On位 只有成功執行MFAuthent命令后,該位才能置位
- ClearBitMask ( Status2Reg, 0x08 );
- //清理寄存器 停止收發
- WriteRawRC ( BitFramingReg, 0x00);
- //清ValuesAfterColl所有接收的位在沖突后被清除
- ClearBitMask ( CollReg, 0x80 );
-
- ucComMF522Buf [ 0 ] = 0x93; //卡片防沖突命令
- ucComMF522Buf [ 1 ] = 0x20;
-
- cStatus = PcdComMF522 ( PCD_TRANSCEIVE,
- ucComMF522Buf,
- 2,
- ucComMF522Buf,
- & ulLen); //與卡片通信
- if ( cStatus == MI_OK) //通信成功
- {
- for ( uc = 0; uc < 4; uc ++ )
- {
- * ( pSnr + uc ) = ucComMF522Buf [ uc ]; //讀出UID
- ucSnr_check ^= ucComMF522Buf [ uc ];
- }
-
- if ( ucSnr_check != ucComMF522Buf [ uc ] )
- cStatus = MI_ERR;
- }
-
- SetBitMask ( CollReg, 0x80 );
-
- return cStatus;
- }
- /**
- * @brief 用RC522計算CRC16
- * @param pIndata,計算CRC16的數組
- * @param ucLen,計算CRC16的數組字節長度
- * @param pOutData,存放計算結果存放的首地址
- * @retval 無
- */
- void CalulateCRC ( uint8_t * pIndata,
- uint8_t ucLen,
- uint8_t * pOutData )
- {
- uint8_t uc, ucN;
- ClearBitMask(DivIrqReg,0x04);
- WriteRawRC(CommandReg,PCD_IDLE);
- SetBitMask(FIFOLevelReg,0x80);
- for ( uc = 0; uc < ucLen; uc ++)
- WriteRawRC ( FIFODataReg, * ( pIndata + uc ) );
- WriteRawRC ( CommandReg, PCD_CALCCRC );
- uc = 0xFF;
- do
- {
- ucN = ReadRawRC ( DivIrqReg );
- uc --;
- } while ( ( uc != 0 ) && ! ( ucN & 0x04 ) );
-
- pOutData [ 0 ] = ReadRawRC ( CRCResultRegL );
- pOutData [ 1 ] = ReadRawRC ( CRCResultRegM );
- }
- /**
- * @brief 選定卡片
- * @param pSnr,卡片序列號,4字節
- * @retval 狀態值= MI_OK,成功
- */
- char PcdSelect ( uint8_t * pSnr )
- {
- char ucN;
- uint8_t uc;
- uint8_t ucComMF522Buf [ MAXRLEN ];
- uint32_t ulLen;
-
-
- ucComMF522Buf [ 0 ] = PICC_ANTICOLL1;
- ucComMF522Buf [ 1 ] = 0x70;
- ucComMF522Buf [ 6 ] = 0;
- for ( uc = 0; uc < 4; uc ++ )
- {
- ucComMF522Buf [ uc + 2 ] = * ( pSnr + uc );
- ucComMF522Buf [ 6 ] ^= * ( pSnr + uc );
- }
-
- CalulateCRC ( ucComMF522Buf, 7, & ucComMF522Buf [ 7 ] );
- ClearBitMask ( Status2Reg, 0x08 );
- ucN = PcdComMF522 ( PCD_TRANSCEIVE,
- ucComMF522Buf,
- 9,
- ucComMF522Buf,
- & ulLen );
-
- if ( ( ucN == MI_OK ) && ( ulLen == 0x18 ) )
- ucN = MI_OK;
- else
- ucN = MI_ERR;
-
- return ucN;
- }
- /**
- * @brief 驗證卡片密碼
- * @param ucAuth_mode,密碼驗證模式= 0x60,驗證A密鑰,
- 密碼驗證模式= 0x61,驗證B密鑰
- * @param uint8_t ucAddr,塊地址
- * @param pKey,密碼
- * @param pSnr,卡片序列號,4字節
- * @retval 狀態值= MI_OK,成功
- */
- char PcdAuthState ( uint8_t ucAuth_mode,
- uint8_t ucAddr,
- uint8_t * pKey,
- uint8_t * pSnr )
- {
- char cStatus;
- uint8_t uc, ucComMF522Buf [ MAXRLEN ];
- uint32_t ulLen;
-
- ucComMF522Buf [ 0 ] = ucAuth_mode;
- ucComMF522Buf [ 1 ] = ucAddr;
- for ( uc = 0; uc < 6; uc ++ )
- ucComMF522Buf [ uc + 2 ] = * ( pKey + uc );
- for ( uc = 0; uc < 6; uc ++ )
- ucComMF522Buf [ uc + 8 ] = * ( pSnr + uc );
- cStatus = PcdComMF522 ( PCD_AUTHENT,
- ucComMF522Buf,
- 12,
- ucComMF522Buf,
- & ulLen );
- if ( ( cStatus != MI_OK ) || ( ! ( ReadRawRC ( Status2Reg ) & 0x08 ) ) )
- cStatus = MI_ERR;
-
- return cStatus;
- }
- /**
- * @brief 寫數據到M1卡一塊
- * @param uint8_t ucAddr,塊地址
- * @param pData,寫入的數據,16字節
- * @retval 狀態值= MI_OK,成功
- */
- char PcdWrite ( uint8_t ucAddr, uint8_t * pData )
- {
- char cStatus;
- uint8_t uc, ucComMF522Buf [ MAXRLEN ];
- uint32_t ulLen;
-
-
- ucComMF522Buf [ 0 ] = PICC_WRITE;
- ucComMF522Buf [ 1 ] = ucAddr;
- CalulateCRC ( ucComMF522Buf, 2, & ucComMF522Buf [ 2 ] );
- cStatus = PcdComMF522 ( PCD_TRANSCEIVE,
- ucComMF522Buf,
- 4,
- ucComMF522Buf,
- & ulLen );
- if ( ( cStatus != MI_OK ) || ( ulLen != 4 ) ||
- ( ( ucComMF522Buf [ 0 ] & 0x0F ) != 0x0A ) )
- cStatus = MI_ERR;
-
- if ( cStatus == MI_OK )
- {
- //memcpy(ucComMF522Buf, pData, 16);
- for ( uc = 0; uc < 16; uc ++ )
- ucComMF522Buf [ uc ] = * ( pData + uc );
-
- CalulateCRC ( ucComMF522Buf, 16, & ucComMF522Buf [ 16 ] );
- cStatus = PcdComMF522 ( PCD_TRANSCEIVE,
- ucComMF522Buf,
- 18,
- ucComMF522Buf,
- & ulLen );
-
- if ( ( cStatus != MI_OK ) || ( ulLen != 4 ) ||
- ( ( ucComMF522Buf [ 0 ] & 0x0F ) != 0x0A ) )
- cStatus = MI_ERR;
-
- }
- return cStatus;
- }
- /**
- * @brief 讀取M1卡一塊數據
- * @param ucAddr,塊地址
- * @param pData,讀出的數據,16字節
- * @retval 狀態值= MI_OK,成功
- */
- char PcdRead ( uint8_t ucAddr, uint8_t * pData )
- {
- char cStatus;
- uint8_t uc, ucComMF522Buf [ MAXRLEN ];
- uint32_t ulLen;
-
- ucComMF522Buf [ 0 ] = PICC_READ;
- ……………………
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