576 lines
14 KiB
C
576 lines
14 KiB
C
/*
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* rs522.c
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*
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* Created on: Sep 3, 2021
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* Author: wuwenfeng
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*/
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#include "rs522.h"
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extern SPI_HandleTypeDef hspi1;
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/*
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* 函数名：ReadRawRC
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* 描述 ：读RC522寄存器
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* 输入 ：ucAddress，寄存器地址
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* 返回 : 寄存器的当前值
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* 调用 ：内部调用
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*/
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uint8_t ReadRawRC ( uint8_t ucAddress )
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{
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uint8_t ucAddr, ucReturn;
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ucAddr = ( ( ucAddress << 1 ) & 0x7E ) | 0x80;
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HAL_GPIO_WritePin(RC522_CS_GPIO_Port, RC522_CS_Pin, 0);
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HAL_SPI_Transmit(&hspi1,&ucAddr,1,100);
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HAL_SPI_Receive(&hspi1,&ucReturn,1,100);
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HAL_GPIO_WritePin(RC522_CS_GPIO_Port, RC522_CS_Pin, 1);
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return ucReturn;
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}
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/*
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* 函数名：WriteRawRC
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* 描述 ：写RC522寄存器
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* 输入 ：ucAddress，寄存器地址
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* ucValue，写入寄存器的值
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* 返回 : 无
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* 调用 ：内部调用
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*/
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void WriteRawRC ( uint8_t ucAddress, uint8_t ucValue )
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{
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uint8_t ucAddr;
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ucAddr = ( ucAddress << 1 ) & 0x7E;
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HAL_GPIO_WritePin(RC522_CS_GPIO_Port, RC522_CS_Pin, 0);
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HAL_SPI_Transmit(&hspi1,&ucAddr,1,100);
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HAL_SPI_Transmit(&hspi1,&ucValue,1,100);
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HAL_GPIO_WritePin(RC522_CS_GPIO_Port, RC522_CS_Pin, 1);
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}
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/*
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* 函数名：SetBitMask
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* 描述 ：对RC522寄存器置位
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* 输入 ：ucReg，寄存器地址
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* ucMask，置位值
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* 返回 : 无
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* 调用 ：内部调用
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*/
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void SetBitMask ( uint8_t ucReg, uint8_t ucMask )
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{
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uint8_t ucTemp;
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ucTemp = ReadRawRC ( ucReg );
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WriteRawRC ( ucReg, ucTemp | ucMask ); // set bit mask
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}
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/*
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* 函数名：ClearBitMask
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* 描述 ：对RC522寄存器清位
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* 输入 ：ucReg，寄存器地址
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* ucMask，清位值
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* 返回 : 无
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* 调用 ：内部调用
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*/
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void ClearBitMask ( uint8_t ucReg, uint8_t ucMask )
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{
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uint8_t ucTemp;
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ucTemp = ReadRawRC ( ucReg );
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WriteRawRC ( ucReg, ucTemp & ( ~ ucMask) ); // clear bit mask
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}
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/*
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* 函数名：PcdAntennaOn
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* 描述 ：开启天线
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* 输入 ：无
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* 返回 : 无
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* 调用 ：内部调用
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*/
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void PcdAntennaOn ( void )
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{
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uint8_t uc;
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uc = ReadRawRC ( TxControlReg );
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if ( ! ( uc & 0x03 ) )
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{
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SetBitMask(TxControlReg, 0x03);
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}
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}
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/*
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* 函数名：PcdAntennaOff
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* 描述 ：开启天线
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* 输入 ：无
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* 返回 : 无
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* 调用 ：内部调用
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*/
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void PcdAntennaOff ( void )
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{
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ClearBitMask ( TxControlReg, 0x03 );
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}
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/*
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* 函数名：PcdRese
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* 描述 ：复位RC522
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* 输入 ：无
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* 返回 : 无
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* 调用 ：外部调用
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*/
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void PcdReset ( void )
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{
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HAL_Delay(1);
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WriteRawRC ( CommandReg, 0x0f );
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while ( ReadRawRC ( CommandReg ) & 0x10 );
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HAL_Delay(1);
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WriteRawRC ( ModeReg, 0x3D ); //定义发送和接收常用模式 和Mifare卡通讯，CRC初始值0x6363
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WriteRawRC ( TReloadRegL, 30 ); //16位定时器低位
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WriteRawRC ( TReloadRegH, 0 ); //16位定时器高位
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WriteRawRC ( TModeReg, 0x8D ); //定义内部定时器的设置
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WriteRawRC ( TPrescalerReg, 0x3E ); //设置定时器分频系数
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WriteRawRC ( TxAutoReg, 0x40 ); //调制发送信号为100%ASK
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}
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/*
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* 函数名：M500PcdConfigISOType
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* 描述 ：设置RC522的工作方式
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* 输入 ：ucType，工作方式
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* 返回 : 无
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* 调用 ：外部调用
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*/
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void M500PcdConfigISOType ( uint8_t ucType )
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{
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if ( ucType == 'A') //ISO14443_A
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{
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ClearBitMask ( Status2Reg, 0x08 );
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WriteRawRC ( ModeReg, 0x3D );//3F
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WriteRawRC ( RxSelReg, 0x86 );//84
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WriteRawRC( RFCfgReg, 0x7F ); //4F
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WriteRawRC( TReloadRegL, 30 );//tmoLength);// TReloadVal = 'h6a =tmoLength(dec)
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WriteRawRC ( TReloadRegH, 0 );
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WriteRawRC ( TModeReg, 0x8D );
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WriteRawRC ( TPrescalerReg, 0x3E );
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HAL_Delay(1);
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PcdAntennaOn ();//开天线
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}
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}
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/*
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* 函数名：PcdComMF522
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* 描述 ：通过RC522和ISO14443卡通讯
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* 输入 ：ucCommand，RC522命令字
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* pInData，通过RC522发送到卡片的数据
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* ucInLenByte，发送数据的字节长度
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* pOutData，接收到的卡片返回数据
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* pOutLenBit，返回数据的位长度
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* 返回 : 状态值
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* = MI_OK，成功
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* 调用 ：内部调用
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*/
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char PcdComMF522 ( uint8_t ucCommand, uint8_t * pInData, uint8_t ucInLenByte, uint8_t * pOutData, uint32_t * pOutLenBit )
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{
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char cStatus = MI_ERR;
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uint8_t ucIrqEn = 0x00;
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uint8_t ucWaitFor = 0x00;
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uint8_t ucLastBits;
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uint8_t ucN;
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uint32_t ul;
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switch ( ucCommand )
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{
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case PCD_AUTHENT: //Mifare认证
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ucIrqEn = 0x12; //允许错误中断请求ErrIEn 允许空闲中断IdleIEn
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ucWaitFor = 0x10; //认证寻卡等待时候 查询空闲中断标志位
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break;
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case PCD_TRANSCEIVE: //接收发送 发送接收
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ucIrqEn = 0x77; //允许TxIEn RxIEn IdleIEn LoAlertIEn ErrIEn TimerIEn
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ucWaitFor = 0x30; //寻卡等待时候 查询接收中断标志位与 空闲中断标志位
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break;
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default:
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break;
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}
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WriteRawRC ( ComIEnReg, ucIrqEn | 0x80 ); //IRqInv置位管脚IRQ与Status1Reg的IRq位的值相反
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ClearBitMask ( ComIrqReg, 0x80 ); //Set1该位清零时，CommIRqReg的屏蔽位清零
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WriteRawRC ( CommandReg, PCD_IDLE ); //写空闲命令
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SetBitMask ( FIFOLevelReg, 0x80 ); //置位FlushBuffer清除内部FIFO的读和写指针以及ErrReg的BufferOvfl标志位被清除
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for ( ul = 0; ul < ucInLenByte; ul ++ )
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{
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WriteRawRC ( FIFODataReg, pInData [ ul ] ); //写数据进FIFOdata
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}
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WriteRawRC ( CommandReg, ucCommand ); //写命令
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if ( ucCommand == PCD_TRANSCEIVE )
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{
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SetBitMask(BitFramingReg,0x80); //StartSend置位启动数据发送 该位与收发命令使用时才有效
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}
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ul = 1000;//根据时钟频率调整，操作M1卡最大等待时间25ms
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do //认证 与寻卡等待时间
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{
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ucN = ReadRawRC ( ComIrqReg ); //查询事件中断
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ul --;
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} while ( ( ul != 0 ) && ( ! ( ucN & 0x01 ) ) && ( ! ( ucN & ucWaitFor ) ) ); //退出条件i=0,定时器中断，与写空闲命令
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ClearBitMask ( BitFramingReg, 0x80 ); //清理允许StartSend位
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if ( ul != 0 )
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{
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if ( ! (( ReadRawRC ( ErrorReg ) & 0x1B )) ) //读错误标志寄存器BufferOfI CollErr ParityErr ProtocolErr
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{
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cStatus = MI_OK;
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if ( ucN & ucIrqEn & 0x01 ) //是否发生定时器中断
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{
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cStatus = MI_NOTAGERR;
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}
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if ( ucCommand == PCD_TRANSCEIVE )
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{
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ucN = ReadRawRC ( FIFOLevelReg ); //读FIFO中保存的字节数
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ucLastBits = ReadRawRC ( ControlReg ) & 0x07; //最后接收到得字节的有效位数
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if ( ucLastBits )
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{
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* pOutLenBit = ( ucN - 1 ) * 8 + ucLastBits; //N个字节数减去1（最后一个字节）+最后一位的位数 读取到的数据总位数
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}
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else
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{
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* pOutLenBit = ucN * 8; //最后接收到的字节整个字节有效
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}
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if ( ucN == 0 )
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{
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ucN = 1;
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}
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if ( ucN > MAXRLEN )
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{
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ucN = MAXRLEN;
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}
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for ( ul = 0; ul < ucN; ul ++ )
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{
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pOutData [ ul ] = ReadRawRC ( FIFODataReg );
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}
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}
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}
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else
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{
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cStatus = MI_ERR;
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}
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}
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SetBitMask ( ControlReg, 0x80 ); // stop timer now
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WriteRawRC ( CommandReg, PCD_IDLE );
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return cStatus;
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}
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/*
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* 函数名：PcdRequest
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* 描述 ：寻卡
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* 输入 ：ucReq_code，寻卡方式
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* = 0x52，寻感应区内所有符合14443A标准的卡
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* = 0x26，寻未进入休眠状态的卡
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* pTagType，卡片类型代码
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* = 0x4400，Mifare_UltraLight
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* = 0x0400，Mifare_One(S50)
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* = 0x0200，Mifare_One(S70)
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* = 0x0800，Mifare_Pro(X))
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* = 0x4403，Mifare_DESFire
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* 返回 : 状态值
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* = MI_OK，成功
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* 调用 ：外部调用
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*/
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char PcdRequest ( uint8_t ucReq_code, uint8_t * pTagType )
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{
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char cStatus;
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uint8_t ucComMF522Buf [ MAXRLEN ];
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uint32_t ulLen;
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ClearBitMask ( Status2Reg, 0x08 ); //清理指示MIFARECyptol单元接通以及所有卡的数据通信被加密的情况
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WriteRawRC ( BitFramingReg, 0x07 ); // 发送的最后一个字节的 七位
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SetBitMask ( TxControlReg, 0x03 ); //TX1,TX2管脚的输出信号传递经发送调制的13.56的能量载波信号
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ucComMF522Buf [ 0 ] = ucReq_code; //存入 卡片命令字
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cStatus = PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 1, ucComMF522Buf, & ulLen ); //寻卡
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if ( ( cStatus == MI_OK ) && ( ulLen == 0x10 ) ) //寻卡成功返回卡类型
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{
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* pTagType = ucComMF522Buf [ 0 ];
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* ( pTagType + 1 ) = ucComMF522Buf [ 1 ];
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}
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else
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{
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cStatus = MI_ERR;
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}
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return cStatus;
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}
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/*
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* 函数名：PcdAnticoll
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* 描述 ：防冲撞
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* 输入 ：pSnr，卡片序列号，4字节
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* 返回 : 状态值
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* = MI_OK，成功
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* 调用 ：外部调用
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*/
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char PcdAnticoll ( uint8_t * pSnr )
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{
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char cStatus;
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uint8_t uc, ucSnr_check = 0;
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uint8_t ucComMF522Buf [ MAXRLEN ];
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uint32_t ulLen;
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ClearBitMask ( Status2Reg, 0x08 ); //清MFCryptol On位 只有成功执行MFAuthent命令后，该位才能置位
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WriteRawRC ( BitFramingReg, 0x00); //清理寄存器 停止收发
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ClearBitMask ( CollReg, 0x80 ); //清ValuesAfterColl所有接收的位在冲突后被清除
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ucComMF522Buf [ 0 ] = 0x93; //卡片防冲突命令
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ucComMF522Buf [ 1 ] = 0x20;
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cStatus = PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 2, ucComMF522Buf, & ulLen);//与卡片通信
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if ( cStatus == MI_OK) //通信成功
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{
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for ( uc = 0; uc < 4; uc ++ )
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{
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* ( pSnr + uc ) = ucComMF522Buf [ uc ]; //读出UID
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ucSnr_check ^= ucComMF522Buf [ uc ];
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}
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if ( ucSnr_check != ucComMF522Buf [ uc ] )
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{
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cStatus = MI_ERR;
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}
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}
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SetBitMask ( CollReg, 0x80 );
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return cStatus;
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}
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/*
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* 函数名：CalulateCRC
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* 描述 ：用RC522计算CRC16
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* 输入 ：pIndata，计算CRC16的数组
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* ucLen，计算CRC16的数组字节长度
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* pOutData，存放计算结果存放的首地址
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* 返回 : 无
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* 调用 ：内部调用
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*/
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void CalulateCRC ( uint8_t * pIndata, uint8_t ucLen, uint8_t * pOutData )
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{
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uint8_t uc, ucN;
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ClearBitMask(DivIrqReg,0x04);
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WriteRawRC(CommandReg,PCD_IDLE);
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SetBitMask(FIFOLevelReg,0x80);
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for ( uc = 0; uc < ucLen; uc ++)
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{
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WriteRawRC ( FIFODataReg, * ( pIndata + uc ) );
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}
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WriteRawRC ( CommandReg, PCD_CALCCRC );
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uc = 0xFF;
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do
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{
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ucN = ReadRawRC ( DivIrqReg );
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uc --;
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} while ( ( uc != 0 ) && ! ( ucN & 0x04 ) );
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pOutData [ 0 ] = ReadRawRC ( CRCResultRegL );
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pOutData [ 1 ] = ReadRawRC ( CRCResultRegM );
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}
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/*
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* 函数名：PcdSelect
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* 描述 ：选定卡片
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* 输入 ：pSnr，卡片序列号，4字节
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* 返回 : 状态值
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* = MI_OK，成功
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* 调用 ：外部调用
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*/
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char PcdSelect ( uint8_t * pSnr )
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{
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char ucN;
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uint8_t uc;
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uint8_t ucComMF522Buf [ MAXRLEN ];
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uint32_t ulLen;
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ucComMF522Buf [ 0 ] = PICC_ANTICOLL1;
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ucComMF522Buf [ 1 ] = 0x70;
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ucComMF522Buf [ 6 ] = 0;
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for ( uc = 0; uc < 4; uc ++ )
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{
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ucComMF522Buf [ uc + 2 ] = * ( pSnr + uc );
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ucComMF522Buf [ 6 ] ^= * ( pSnr + uc );
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}
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CalulateCRC ( ucComMF522Buf, 7, & ucComMF522Buf [ 7 ] );
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ClearBitMask ( Status2Reg, 0x08 );
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ucN = PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 9, ucComMF522Buf, & ulLen );
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if ( ( ucN == MI_OK ) && ( ulLen == 0x18 ) )
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{
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ucN = MI_OK;
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}
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else
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{
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ucN = MI_ERR;
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}
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return ucN;
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}
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/*
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* 函数名：PcdAuthState
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* 描述 ：验证卡片密码
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* 输入 ：ucAuth_mode，密码验证模式
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* = 0x60，验证A密钥
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* = 0x61，验证B密钥
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* u8 ucAddr，块地址
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* pKey，密码
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* pSnr，卡片序列号，4字节
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* 返回 : 状态值
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* = MI_OK，成功
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* 调用 ：外部调用
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*/
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char PcdAuthState ( uint8_t ucAuth_mode, uint8_t ucAddr, char * pKey, uint8_t * pSnr )
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{
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char cStatus;
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uint8_t uc, ucComMF522Buf [ MAXRLEN ];
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uint32_t ulLen;
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ucComMF522Buf [ 0 ] = ucAuth_mode;
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ucComMF522Buf [ 1 ] = ucAddr;
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for ( uc = 0; uc < 6; uc ++ )
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{
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ucComMF522Buf [ uc + 2 ] = * ( pKey + uc );
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}
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for ( uc = 0; uc < 6; uc ++ )
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{
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ucComMF522Buf [ uc + 8 ] = * ( pSnr + uc );
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}
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cStatus = PcdComMF522 ( PCD_AUTHENT, ucComMF522Buf, 12, ucComMF522Buf, & ulLen );
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if ( ( cStatus != MI_OK ) || ( ! ( ReadRawRC ( Status2Reg ) & 0x08 ) ) )
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{
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// if(cStatus != MI_OK)
|
||
// printf("666") ;
|
||
// else
|
||
// printf("888");
|
||
cStatus = MI_ERR;
|
||
}
|
||
|
||
return cStatus;
|
||
|
||
}
|
||
|
||
|
||
/*
|
||
* 函数名：PcdWrite
|
||
* 描述 ：写数据到M1卡一块
|
||
* 输入 ：u8 ucAddr，块地址
|
||
* pData，写入的数据，16字节
|
||
* 返回 : 状态值
|
||
* = MI_OK，成功
|
||
* 调用 ：外部调用
|
||
*/
|
||
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;
|
||
|
||
}
|
||
|
||
|
||
/*
|
||
* 函数名：PcdRead
|
||
* 描述 ：读取M1卡一块数据
|
||
* 输入 ：u8 ucAddr，块地址
|
||
* pData，读出的数据，16字节
|
||
* 返回 : 状态值
|
||
* = MI_OK，成功
|
||
* 调用 ：外部调用
|
||
*/
|
||
char PcdRead ( uint8_t ucAddr, uint8_t * pData )
|
||
{
|
||
char cStatus;
|
||
uint8_t uc, ucComMF522Buf [ MAXRLEN ];
|
||
uint32_t ulLen;
|
||
ucComMF522Buf [ 0 ] = PICC_READ;
|
||
ucComMF522Buf [ 1 ] = ucAddr;
|
||
CalulateCRC ( ucComMF522Buf, 2, & ucComMF522Buf [ 2 ] );
|
||
cStatus = PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 4, ucComMF522Buf, & ulLen );
|
||
if ( ( cStatus == MI_OK ) && ( ulLen == 0x90 ) )
|
||
{
|
||
for ( uc = 0; uc < 16; uc ++ )
|
||
{
|
||
* ( pData + uc ) = ucComMF522Buf [ uc ];
|
||
}
|
||
}
|
||
else
|
||
{
|
||
cStatus = MI_ERR;
|
||
}
|
||
return cStatus;
|
||
|
||
}
|
||
|
||
|
||
/*
|
||
* 函数名：PcdHalt
|
||
* 描述 ：命令卡片进入休眠状态
|
||
* 输入 ：无
|
||
* 返回 : 状态值
|
||
* = MI_OK，成功
|
||
* 调用 ：外部调用
|
||
*/
|
||
char PcdHalt( void )
|
||
{
|
||
uint8_t ucComMF522Buf [ MAXRLEN ];
|
||
uint32_t ulLen;
|
||
ucComMF522Buf [ 0 ] = PICC_HALT;
|
||
ucComMF522Buf [ 1 ] = 0;
|
||
CalulateCRC ( ucComMF522Buf, 2, & ucComMF522Buf [ 2 ] );
|
||
PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 4, ucComMF522Buf, & ulLen );
|
||
return MI_OK;
|
||
|
||
}
|
||
|
||
|
||
void IC_CMT ( uint8_t * UID, uint8_t * KEY, uint8_t RW, uint8_t * Dat )
|
||
{
|
||
uint8_t ucArray_ID [ 4 ] = { 0 };//先后存放IC卡的类型和UID(IC卡序列号)
|
||
PcdRequest ( 0x52, ucArray_ID );//寻卡
|
||
PcdAnticoll ( ucArray_ID );//防冲撞
|
||
PcdSelect ( UID );//选定卡
|
||
PcdAuthState ( 0x60, 0x10, KEY, UID );//校验
|
||
if ( RW )//读写选择，1是读，0是写
|
||
{
|
||
PcdRead ( 0x10, Dat );
|
||
}
|
||
else
|
||
{
|
||
PcdWrite ( 0x10, Dat );
|
||
}
|
||
PcdHalt ();
|
||
|
||
}
|
||
|
||
void RC522_Init ( void )
|
||
{
|
||
PcdReset ();
|
||
M500PcdConfigISOType ( 'A' );//设置工作方式
|
||
}
|