功能口 | 引脚 |
---|---|
MISO | DIO_8 |
MOSI | DIO_9 |
CLK | DIO_10 |
CSN | DIO_11 |
RST | DIO_1 |
查看 CC2640R2F学习笔记(22)——SPI接口使用
链接:https://pan.baidu.com/s/1ztR1SZrRsv7Bxhj1Vnpbaw 提取码:lasq
将 rc522.c 和 rc522.h 两个文件拖拽至CCS工程的Application文件夹下
/*********************************************************************
* INCLUDES
*/
#include
#include
#include
#include
#include
#include
#include "board.h"
#include "util.h"
#include "board_spi.h"
#include "board_uart.h"
#include "rc522.h"
static void rstPinInit(void);
static void rstPinSet(PIN_Id pinId, bool pinState);
static void irqCallback(PIN_Handle pinHandle, PIN_Id pinId);
static void irqChangeHandler(UArg arg);
static char pcdRequest(uint8_t reqCode, uint8_t *pTagType);
static char pcdAnticoll(uint8_t *pSnr);
static char pcdSelect(uint8_t *pSnr);
static char pcdAuthState(uint8_t authMode, uint8_t addr, uint8_t *pKey, uint8_t *pSnr);
static char pcdRead(uint8_t addr, uint8_t *pData);
static char pcdWrite(uint8_t addr, uint8_t *pData);
static void pcdReset(void);
static void calulateCRC(uint8_t *pInData, uint8_t len, uint8_t *pOutData);
static char pcdComMF522(uint8_t command, uint8_t *pInData, uint8_t inLenByte, uint8_t *pOutData, uint32_t *pOutLenBit);
static void pcdAntennaOn(void);
static void pcdAntennaOff(void);
static void setBitMask(uint8_t reg, uint8_t mask);
static void clearBitMask(uint8_t reg, uint8_t mask);
static uint8_t readRawRc(uint8_t addr);
static void writeRawRc(uint8_t addr, uint8_t writeData);
static void delayMs(uint8_t time);
/*********************************************************************
* LOCAL VARIABLES
*/
// RST引脚配置
static PIN_State s_rc522RstState;
static PIN_Handle s_rc522RstHandle;
static PIN_Config s_rc522RstPinsCfg[] =
{
RC522_RST_IO | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL | PIN_DRVSTR_MIN,
PIN_TERMINATE
};
// IRQ引脚配置
static PIN_State s_rc522IrqState;
static PIN_Handle s_rc522IrqHandle;
static PIN_Config s_rc522IrqPinsCfg[] =
{
RC522_IRQ_IO | PIN_GPIO_OUTPUT_DIS | PIN_INPUT_EN | PIN_PULLDOWN,
PIN_TERMINATE
};
static uint8_t s_irqValue; // 中断值
static Clock_Struct s_irqChangeClock; // 中断消抖时钟
static IrqCallback_t s_appIrqChangeHandler = NULL; // 对应应用层回调函数的函数指针
static uint8_t s_cardType[2]; // 卡类型
static uint8_t s_cardSerialNo[4]; // 卡序列号
static uint8_t s_defaultKeyA[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; // 默认密码A
/*********************************************************************
* PUBLIC FUNCTIONS
*/
/**
@brief RC522的初始化函数
@param 无
@return 无
*/
void RC522_Init(void)
{
SPI_Init(); // SPI初始化
rstPinInit(); // 复位引脚初始化
pcdReset(); // 复位
delayMs(5);
pcdAntennaOn(); // 开启天线发射
}
/**
@brief RC522中断初始化函数
@param appIrqCB -[in] 中断回调函数
@return 无
*/
void RC522_irqInit(IrqCallback_t appIrqCB)
{
s_rc522IrqHandle = PIN_open(&s_rc522IrqState, s_rc522IrqPinsCfg); // 初始化中断的IO
PIN_registerIntCb(s_rc522IrqHandle, irqCallback); // 注册回调函数
// 修改成双沿中断触发,以避免睡眠之后中断不灵
PIN_setConfig(s_rc522IrqHandle, PIN_BM_IRQ, RC522_IRQ_IO | PIN_IRQ_BOTHEDGES); // PIN_IRQ_NEGEDGE
#ifdef POWER_SAVING // 低功耗下的配置
PIN_setConfig(s_rc522IrqHandle, PINCC26XX_BM_WAKEUP, RC522_IRQ_IO | PINCC26XX_WAKEUP_NEGEDGE);
#endif // POWER_SAVING
// 初始化按键定时事件
Util_constructClock(&s_irqChangeClock, irqChangeHandler, IRQ_DEBOUNCE_TIMEOUT, 0, false, 0);
s_appIrqChangeHandler = appIrqCB; // 保存应用层的函数指针
}
/**
@brief RC522读取卡片块数据
@param addr -[in] 块地址
@return 状态值,0 - 成功;2 - 无卡;3 - 防冲撞失败;4 - 选卡失败;5 - 密码错误
*/
uint8_t RC522_ReadCardDataBlock(uint8_t addr)
{
memset(s_cardSerialNo, 0, 4);
if(pcdRequest(PICC_REQALL, s_cardType) == MI_OK)
{
}
else
{
return 2; // 无卡
}
if(pcdAnticoll(s_cardSerialNo) == MI_OK)
{
}
else
{
return 3; // 防冲撞失败
}
if(pcdSelect(s_cardSerialNo) == MI_OK)
{
}
else
{
return 4; // 选卡失败
}
if(pcdAuthState(0x60, addr, s_defaultKeyA, s_cardSerialNo) == MI_OK)
{
return 0;
}
else
{
return 5; // 密码错误
}
}
/*********************************************************************
* LOCAL FUNCTIONS
*/
/**
@brief RC522的RST引脚初始化
@param 无
@return 无
*/
static void rstPinInit(void)
{
s_rc522RstHandle = PIN_open(&s_rc522RstState, s_rc522RstPinsCfg);
}
/**
@brief RC522的RST引脚设置
@param pinId -[in] 引脚号
@param pinState -[in] 引脚状态
@return 无
*/
static void rstPinSet(PIN_Id pinId, bool pinState)
{
if(pinState == RC522_RST_OFF)
{
PIN_setOutputValue(s_rc522RstHandle, pinId, 1);
}
else if(pinState == RC522_RST_ON)
{
PIN_setOutputValue(s_rc522RstHandle, pinId, 0);
}
}
/**
@brief IRQ中断回调函数
@param pinHandle -[in] 引脚句柄
@param pinId -[in] 引脚号
@return 无
*/
static void irqCallback(PIN_Handle pinHandle, PIN_Id pinId)
{
s_irqValue = 0; // 清除中断值
if(PIN_getInputValue(RC522_IRQ_IO) == RC522_IRQ_ON) // 判断卡片是否接近
{
s_irqValue |= 0x0001; // 保存键值
}
Util_startClock(&s_irqChangeClock); // 启动定时器进行消抖
}
/**
@brief IRQ中断的消抖处理函数
@param 无
@return 无
*/
static void irqChangeHandler(UArg arg)
{
if(s_appIrqChangeHandler != NULL) // 判断是否有注册
{
if(PIN_getInputValue(RC522_IRQ_IO) == RC522_IRQ_ON) // 消抖
{
s_irqValue |= 0x0001;
}
(*s_appIrqChangeHandler)(s_irqValue); // 调用中断应用层处理函数
}
}
/**
@brief 寻卡
@param reqCode -[in] 寻卡方式,0x52 寻感应区内所有符合1443A标准的卡,0x26 寻未进入休眠状态的卡
@param 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
@return 状态值,MI OK - 成功;MI_ERR - 失败
*/
static char pcdRequest(uint8_t reqCode, uint8_t *pTagType)
{
char status;
uint32_t len;
uint8_t comMF522Buf[MAXRLEN];
clearBitMask(Status2Reg, 0x08);
writeRawRc(BitFramingReg, 0x07);
setBitMask(TxControlReg, 0x03);
comMF522Buf[0] = reqCode;
status = pcdComMF522(PCD_TRANSCEIVE, comMF522Buf, 1, comMF522Buf, &len); // 发送并接收数据
if((status == MI_OK) && (len == 0x10))
{
*pTagType = comMF522Buf[0];
*(pTagType+1) = comMF522Buf[1];
}
else
{
status = MI_ERR;
}
return status;
}
/**
@brief 防冲撞
@param pSnr -[out] 卡片序列号,4字节
@return 状态值,MI OK - 成功;MI_ERR - 失败
*/
static char pcdAnticoll(uint8_t *pSnr)
{
char status;
uint8_t i, snrCheck = 0;
uint32_t len;
uint8_t comMF522Buf[MAXRLEN];
clearBitMask(Status2Reg, 0x08); // 寄存器包含接收器和发送器和数据模式检测器的状态标志
writeRawRc(BitFramingReg, 0x00); // 不启动数据发送,接收的LSB位存放在位0,接收到的第二位放在位1,定义发送的最后一个字节位数为8
clearBitMask(CollReg, 0x80); // 所有接收的位在冲突后将被清除
comMF522Buf[0] = PICC_ANTICOLL1;
comMF522Buf[1] = 0x20;
status = pcdComMF522(PCD_TRANSCEIVE, comMF522Buf, 2, comMF522Buf, &len);
if(status == MI_OK)
{
for(i = 0; i < 4; i++)
{
*(pSnr + i) = comMF522Buf[i];
snrCheck ^= comMF522Buf[i];
}
if(snrCheck != comMF522Buf[i]) // 返回四个字节,最后一个字节为校验位
{
status = MI_ERR;
}
}
setBitMask(CollReg, 0x80);
return status;
}
/**
@brief 选定卡片
@param pSnr -[in] 卡片序列号,4字节
@return 状态值,MI OK - 成功;MI_ERR - 失败
*/
static char pcdSelect(uint8_t *pSnr)
{
char status;
uint8_t i;
uint8_t comMF522Buf[MAXRLEN];
uint32_t len;
comMF522Buf[0] = PICC_ANTICOLL1;
comMF522Buf[1] = 0x70;
comMF522Buf[6] = 0;
for(i = 0; i < 4; i++)
{
comMF522Buf[i + 2] = *(pSnr + i);
comMF522Buf[6] ^= *(pSnr + i);
}
calulateCRC(comMF522Buf, 7, &comMF522Buf[7]);
clearBitMask(Status2Reg, 0x08);
status = pcdComMF522(PCD_TRANSCEIVE, comMF522Buf, 9, comMF522Buf, &len);
if((status == MI_OK ) && (len == 0x18))
{
status = MI_OK;
}
else
{
status = MI_ERR;
}
return status;
}
/**
@brief 验证卡片密码
@param authMode -[in] 密码验证模式,0x60 验证A密钥,0x61 验证B密钥
@param addr -[in] 块地址
@param pKey -[in] 密码
@param pSnr -[in] 卡片序列号,4字节
@return 状态值,MI OK - 成功;MI_ERR - 失败
*/
static char pcdAuthState(uint8_t authMode, uint8_t addr, uint8_t *pKey, uint8_t *pSnr)
{
char status;
uint8_t i, comMF522Buf[MAXRLEN];
uint32_t len;
comMF522Buf[0] = authMode;
comMF522Buf[1] = addr;
for(i = 0; i < 6; i++)
{
comMF522Buf[i + 2] = *(pKey + i);
}
for(i = 0; i < 6; i++)
{
comMF522Buf[i + 8] = *(pSnr + i);
}
status = pcdComMF522(PCD_AUTHENT, comMF522Buf, 12, comMF522Buf, &len);
if((status != MI_OK ) || ( ! (readRawRc(Status2Reg) & 0x08)))
{
status = MI_ERR;
}
return status;
}
/**
@brief 读取M1卡一块数据
@param addr -[in] 块地址
@param pData -[out] 读出的数据,16字节
@return 状态值,MI OK - 成功;MI_ERR - 失败
*/
static char pcdRead(uint8_t addr, uint8_t *pData)
{
char status;
uint8_t i, comMF522Buf[MAXRLEN];
uint32_t len;
comMF522Buf[0] = PICC_READ;
comMF522Buf[1] = addr;
calulateCRC(comMF522Buf, 2, &comMF522Buf[2]);
status = pcdComMF522(PCD_TRANSCEIVE, comMF522Buf, 4, comMF522Buf, &len);
if((status == MI_OK) && (len == 0x90))
{
for(i = 0; i < 16; i++)
{
*(pData + i) = comMF522Buf[i];
}
}
else
{
status = MI_ERR;
}
return status;
}
/**
@brief 写入M1卡一块数据
@param addr -[in] 块地址
@param pData -[out] 写入的数据,16字节
@return 状态值,MI OK - 成功;MI_ERR - 失败
*/
static char pcdWrite(uint8_t addr, uint8_t *pData)
{
char status;
uint8_t i, comMF522Buf[MAXRLEN];
uint32_t len;
comMF522Buf[0] = PICC_WRITE;
comMF522Buf[1] = addr;
calulateCRC(comMF522Buf, 2, &comMF522Buf[2]);
status = pcdComMF522(PCD_TRANSCEIVE, comMF522Buf, 4, comMF522Buf, &len);
if((status != MI_OK) || (len != 4) || ((comMF522Buf[0] & 0x0F) != 0x0A))
{
status = MI_ERR;
}
if(status == MI_OK)
{
for(i = 0; i < 16; i++)
{
comMF522Buf[i] = *(pData + i);
}
calulateCRC(comMF522Buf, 16, &comMF522Buf[16]);
status = pcdComMF522(PCD_TRANSCEIVE, comMF522Buf, 18, comMF522Buf, &len);
if((status != MI_OK) || (len != 4) || ((comMF522Buf[0] & 0x0F) != 0x0A))
{
status = MI_ERR;
}
}
return status;
}
/**
@brief 复位RC522
@return 无
*/
static void pcdReset(void)
{
// 需先保持高电平,后给个下降沿
RC522_RST_LOW;
delayMs(5);
RC522_RST_HIGH;
delayMs(10);
writeRawRc(CommandReg, PCD_RESETPHASE); // 和MI卡通讯,CRC初始值0x6363
delayMs(1);
writeRawRc(ModeReg, 0x3D);
writeRawRc(TReloadRegL, 30);
writeRawRc(TReloadRegH, 0);
writeRawRc(TModeReg, 0x8D);
writeRawRc(TPrescalerReg, 0x3E);
writeRawRc(TxASKReg, 0x40);
}
/**
@brief 用MF522计算CRC16
@param pInData -[in] 计算CRC16的数组
@param len -[in] 计算CRC16的数组字节长度
@param pOutData -[out] 存放计算结果存放的首地址
@return 无
*/
static void calulateCRC(uint8_t *pInData, uint8_t len, uint8_t *pOutData)
{
uint8_t i, n;
clearBitMask(DivIrqReg, 0x04);
writeRawRc(CommandReg, PCD_IDLE);
setBitMask(FIFOLevelReg, 0x80);
for(i = 0; i < len; i++)
{
writeRawRc(FIFODataReg, *(pInData + i));
}
writeRawRc(CommandReg, PCD_CALCCRC);
i = 0xFF;
do
{
n = readRawRc(DivIrqReg);
i--;
}
while((i != 0) && ! (n & 0x04));
pOutData[0] = readRawRc(CRCResultRegL);
pOutData[1] = readRawRc(CRCResultRegM);
}
/**
@brief 通过RC522和ISO14443卡通讯
@param command -[in] RC522命令字
@param pInData -[in] 通过RC522发送到卡片的数据
@param inLenByte -[in] 发送数据的字节长度
@param pOutData -[out] 接收到的卡片返回数据
@param pOutLenBit -[out] 返回数据的位长度
@return 状态值,MI OK - 成功;MI_ERR - 失败
*/
static char pcdComMF522(uint8_t command, uint8_t *pInData, uint8_t inLenByte, uint8_t *pOutData, uint32_t *pOutLenBit)
{
char status = MI_ERR;
uint8_t irqEn = 0x00;
uint8_t waitFor = 0x00;
uint8_t lastBits;
uint8_t n;
uint32_t i;
uint8_t j;
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); // 清空FIFO
for(i = 0; i < inLenByte; i++)
{
writeRawRc(FIFODataReg, pInData[i]); // 数据写入FIFO
}
writeRawRc(CommandReg, command); // 命令写入命令寄存器
if(command == PCD_TRANSCEIVE)
{
setBitMask(BitFramingReg, 0x80); // 开始发送
}
i = 6000; // 根据时钟频率调整,操作M1卡最大等待时间25ms
do
{
n = readRawRc(ComIrqReg);
i--;
}
while((i != 0) && !(n & 0x01) && !(n & waitFor));
clearBitMask(BitFramingReg, 0x80);
if(i != 0)
{
j = readRawRc(ErrorReg);
if(!(j & 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 < n; i++)
{
pOutData[i] = readRawRc(FIFODataReg);
}
}
}
else
{
status = MI_ERR;
}
}
setBitMask(ControlReg, 0x80); // stop timer now
writeRawRc(CommandReg, PCD_IDLE);
return status;
}
/**
@brief 开启天线【每次启动或关闭天线发射之间至少有1ms的间隔】
@return 无
*/
static void pcdAntennaOn(void)
{
uint8_t temp;
temp = readRawRc(TxControlReg);
if(!(temp & 0x03))
{
setBitMask(TxControlReg, 0x03);
}
}
/**
@brief 关闭天线
@return 无
*/
static void pcdAntennaOff(void)
{
clearBitMask(TxControlReg, 0x03);
}
/**
@brief 置RC522寄存器位
@param reg -[in] 寄存器地址
@param mask -[in] 置位值
@return 无
*/
static void setBitMask(uint8_t reg, uint8_t mask)
{
char temp = 0x00;
temp = readRawRc(reg) | mask;
writeRawRc(reg, temp | mask); // set bit mask
}
/**
@brief 清RC522寄存器位
@param reg -[in] 寄存器地址
@param mask -[in] 清位值
@return 无
*/
static void clearBitMask(uint8_t reg, uint8_t mask)
{
char temp = 0x00;
temp = readRawRc(reg) & (~mask);
writeRawRc(reg, temp); // clear bit mask
}
/**
@brief 写RC522寄存器
@param addr -[in] 寄存器地址
@param writeData -[in] 写入数据
@return 无
*/
static void writeRawRc(uint8_t addr, uint8_t writeData)
{
SPI_CS_LOW;
addr <<= 1;
addr &= 0x7e;
SPI_ReadWriteData(&addr, NULL, sizeof(uint8_t));
SPI_ReadWriteData(&writeData, NULL, sizeof(uint8_t));
SPI_CS_HIGH;
}
/**
@brief 读RC522寄存器
@param addr -[in] 寄存器地址
@return 读出一字节数据
*/
static uint8_t readRawRc(uint8_t addr)
{
uint8_t writeData = 0xff;
uint8_t readData;
SPI_CS_LOW;
addr <<= 1;
addr |= 0x80;
SPI_ReadWriteData(&addr, NULL, sizeof(uint8_t));
SPI_ReadWriteData(&writeData, &readData, sizeof(uint8_t));
SPI_CS_HIGH;
return readData;
}
/**
@brief 毫秒级延时函数
@param time -[in] 延时时间(毫秒)
@return 无
*/
static void delayMs(uint8_t time)
{
CPUdelay(12000 * time);
}
/*************************************END OF FILE*************************************/
#ifndef _RC522_H_
#define _RC522_H_
/*********************************************************************
* INCLUDES
*/
/*********************************************************************
* DEFINITIONS
*/
#define RC522_RST_ON 0
#define RC522_RST_OFF 1
#define RC522_IRQ_ON 1
#define RC522_IRQ_OFF 0
#define RC522_RST_IO IOID_1
#define RC522_IRQ_IO IOID_5
#define IRQ_DEBOUNCE_TIMEOUT 20 // 超时时间
#define RC522_RST_HIGH rstPinSet(RC522_RST_IO, RC522_RST_OFF)
#define RC522_RST_LOW rstPinSet(RC522_RST_IO, RC522_RST_ON)
#define MAXRLEN 18
#define MIN_STRENGTH 228
#define DEF_FIFO_LENGTH 64 // FIFO size = 64byte;
//******************************************************************/
// RC522命令字 /
//******************************************************************/
#define PCD_IDLE 0x00 // 取消当前命令
#define PCD_AUTHENT 0x0E // 验证密钥
#define PCD_RECEIVE 0x08 // 接收数据
#define PCD_TRANSMIT 0x04 // 发送数据
#define PCD_TRANSCEIVE 0x0C // 发送并接收数据
#define PCD_RESETPHASE 0x0F // 复位
#define PCD_CALCCRC 0x03 // CRC计算
//******************************************************************/
// Mifare_One卡片命令字 */
//******************************************************************/
#define PICC_REQIDL 0x26 // 寻天线区内未进入休眠状态
#define PICC_REQALL 0x52 // 寻天线区内全部卡
#define PICC_ANTICOLL1 0x93 // 防冲撞
#define PICC_ANTICOLL2 0x95 // 防冲撞
#define PICC_AUTHENT1A 0x60 // 验证A密钥
#define PICC_AUTHENT1B 0x61 // 验证B密钥
#define PICC_READ 0x30 // 读块
#define PICC_WRITE 0xA0 // 写块
#define PICC_DECREMENT 0xC0 // 扣款
#define PICC_INCREMENT 0xC1 // 充值
#define PICC_RESTORE 0xC2 // 调块数据到缓冲区
#define PICC_TRANSFER 0xB0 // 保存缓冲区中数据
#define PICC_HALT 0x50 // 休眠
//******************************************************************/
// MF522寄存器定义 /
//******************************************************************/
// PAGE 0
#define RFU00 0x00
#define CommandReg 0x01
#define ComIEnReg 0x02
#define DivlEnReg 0x03
#define ComIrqReg 0x04
#define DivIrqReg 0x05
#define ErrorReg 0x06
#define Status1Reg 0x07
#define Status2Reg 0x08
#define FIFODataReg 0x09
#define FIFOLevelReg 0x0A
#define WaterLevelReg 0x0B
#define ControlReg 0x0C
#define BitFramingReg 0x0D
#define CollReg 0x0E
#define RFU0F 0x0F
// PAGE 1
#define RFU10 0x10
#define ModeReg 0x11
#define TxModeReg 0x12
#define RxModeReg 0x13
#define TxControlReg 0x14
#define TxASKReg 0x15
#define TxSelReg 0x16
#define RxSelReg 0x17
#define RxThresholdReg 0x18
#define DemodReg 0x19
#define RFU1A 0x1A
#define RFU1B 0x1B
#define MifareReg 0x1C
#define RFU1D 0x1D
#define RFU1E 0x1E
#define SerialSpeedReg 0x1F
// PAGE 2
#define RFU20 0x20
#define CRCResultRegM 0x21
#define CRCResultRegL 0x22
#define RFU23 0x23
#define ModWidthReg 0x24
#define RFU25 0x25
#define RFCfgReg 0x26
#define GsNReg 0x27
#define CWGsCfgReg 0x28
#define ModGsCfgReg 0x29
#define TModeReg 0x2A
#define TPrescalerReg 0x2B
#define TReloadRegH 0x2C
#define TReloadRegL 0x2D
#define TCounterValueRegH 0x2E
#define TCounterValueRegL 0x2F
// PAGE 3
#define RFU30 0x30
#define TestSel1Reg 0x31
#define TestSel2Reg 0x32
#define TestPinEnReg 0x33
#define TestPinValueReg 0x34
#define TestBusReg 0x35
#define AutoTestReg 0x36
#define VersionReg 0x37
#define AnalogTestReg 0x38
#define TestDAC1Reg 0x39
#define TestDAC2Reg 0x3A
#define TestADCReg 0x3B
#define RFU3C 0x3C
#define RFU3D 0x3D
#define RFU3E 0x3E
#define RFU3F 0x3F
//******************************************************************/
// RC522通讯返回错误代码 /
//******************************************************************/
#define MI_ERR 0xFE
//#define MI_ERR //(-2)
// Mifare Error Codes
// Each function returns a status value, which corresponds to the
// mifare error codes.
#define MI_OK 0
#define MI_CHK_OK 0
#define MI_CRC_ZERO 0
#define MI_CRC_NOTZERO 1
#define MI_NOTAGERR 0xFF
#define MI_CHK_FAILED 0xFF
#define MI_CRCERR 0xFE
#define MI_CHK_COMPERR 0xFE
#define MI_EMPTY 0xFD
#define MI_AUTHERR 0xFC
#define MI_PARITYERR 0xFB
#define MI_CODEERR 0xFA
#define MI_SERNRERR 0xF8
#define MI_KEYERR 0xF7
#define MI_NOTAUTHERR 0xF6
#define MI_BITCOUNTERR 0xF5
#define MI_BYTECOUNTERR 0xF4
#define MI_IDLE 0xF3
#define MI_TRANSERR 0xF2
#define MI_WRITEERR 0xF1
#define MI_INCRERR 0xF0
#define MI_DECRERR 0xEF
#define MI_READERR 0xEE
#define MI_OVFLERR 0xED
#define MI_POLLING 0xEC
#define MI_FRAMINGERR 0xEB
#define MI_ACCESSERR 0xEA
#define MI_UNKNOWN_COMMAND 0xE9
#define MI_COLLERR 0xE8
#define MI_RESETERR 0xE7
#define MI_INITERR 0xE7
#define MI_INTERFACEERR 0xE7
#define MI_ACCESSTIMEOUT 0xE5
#define MI_NOBITWISEANTICOLL 0xE4
#define MI_QUIT 0xE2
#define MI_RECBUF_OVERFLOW 0xCF
#define MI_SENDBYTENR 0xCE
#define MI_SENDBUF_OVERFLOW 0xCC
#define MI_BAUDRATE_NOT_SUPPORTED 0xCB
#define MI_SAME_BAUDRATE_REQUIRED 0xCA
#define MI_WRONG_PARAMETER_VALUE 0xC5
#define MI_BREAK 0x9E
#define MI_NY_IMPLEMENTED 0x9D
#define MI_NO_MFRC 0x9C
#define MI_MFRC_NOTAUTH 0x9B
#define MI_WRONG_DES_MODE 0x9A
#define MI_HOST_AUTH_FAILED 0x99
#define MI_WRONG_LOAD_MODE 0x97
#define MI_WRONG_DESKEY 0x96
#define MI_MKLOAD_FAILED 0x95
#define MI_FIFOERR 0x94
#define MI_WRONG_ADDR 0x93
#define MI_DESKEYLOAD_FAILED 0x92
#define MI_WRONG_SEL_CNT 0x8F
#define MI_RC531_WRONG_READVALUE 0x8E // LI ADDED 09-4-24
#define MI_WRONG_TEST_MODE 0x8C
#define MI_TEST_FAILED 0x8B
#define MI_TOC_ERROR 0x8A
#define MI_COMM_ABORT 0x89
#define MI_INVALID_BASE 0x88
#define MI_MFRC_RESET 0x87
#define MI_WRONG_VALUE 0x86
#define MI_VALERR 0x85
/*********************************************************************
* TYPEDEFS
*/
typedef void (*IrqCallback_t)(uint8_t irqValue);
/*********************************************************************
* API FUNCTIONS
*/
void RC522_Init(void);
void RC522_irqInit(IrqCallback_t appIrqCB);
uint8_t RC522_ReadCardDataBlock(uint8_t addr);
#endif /* _RC522_H_ */
需包含头文件 rc522.h
RC522_Init
功能 | RC522的初始化函数 |
---|---|
函数定义 | void RC522_Init(void) |
参数 | 无 |
返回 | 无 |
RC522_irqInit
功能 | RC522中断初始化函数 |
---|---|
函数定义 | void RC522_irqInit(IrqCallback_t appIrqCB) |
参数 | appIrqCB:中断回调函数 |
返回 | 无 |
RC522_ReadCardDataBlock
功能 | RC522读取卡片块数据 |
---|---|
函数定义 | uint8_t RC522_ReadCardDataBlock(uint8_t addr) |
参数 | addr:块地址 |
返回 | 状态值,0 - 成功;2 - 无卡;3 - 防冲撞失败;4 - 选卡失败;5 - 密码错误 |
1)添加头文件(例multi_role.c中)
#include "rc522.h"
2)添加初始化代码(multi_role.c的multi_role_init函数末尾中)
// RC522初始化
RC522_Init();
3)读取数据块4
RC522_ReadCardDataBlock(4);
• 由 Leung 写于 2019 年 8 月 27 日