复旦微ISO14443TypeA卡读卡芯片FM17522驱动程序(含LPCD低功耗寻卡功能).rar

#include<iostm8l052r8.h> #include "RC522.h" #include "delay.h" #include "lpcd.h" #include "config.h" #include "main.h" #include "Sound.h" #include "ReadCard.h" #include "Ble.h" #define ADC_REFERNCE_MIN 0x0 //实际并联电容值最小 #define ADC_REFERNCE_MAX 0xEF //实际电容值最大 unsigned char T3ClkDivK ; unsigned char LPCDBiasCurrent; unsigned char LpcdGainReduce;//2bit unsigned char LpcdGainAmplify;//3bit unsigned char LpcdADCRefernce;//7bit unsigned char Timer1Cfg;//4bit unsigned char Timer2Cfg;//5bit unsigned char Timer3Cfg;//5bit unsigned char ADCResultFullScale; //T3下满幅ADCResult信息 unsigned char ADCResultThreshold; //检测幅度，设置成相对值 unsigned char LpcdThreshold_L; //LPCD幅度低阈值 unsigned char LpcdThreshold_H; //LPCD幅度高阈值 unsigned char ADCResultCenter; //LPCD幅度中心点 unsigned char LpcdADCResult[10]; //Lpcd幅度信息，用于误触发判断 lpcd_para_t Lpcd = {0}; ///////////////////////////////////////////////////////////////////// //功 能：写NXP520 寄存器 //参数说明：addr:寄存器地址 // date:数据 ///////////////////////////////////////////////////////////////////// void nxp520_write_reg(unsigned char addr,unsigned char date) { //rc522Write(addr,date); WriteRawRC(addr,date); } ///////////////////////////////////////////////////////////////////// //功 能：读NXP520 寄存器 //参数说明：addr:寄存器地址 ///////////////////////////////////////////////////////////////////// unsigned char nxp520_read_reg(unsigned char addr) { unsigned char ret ; //rc522Read(addr,&ret); ret=ReadRawRC(addr); return ret; } /*--------------------------------------------------------------------------- 函数名称:nxp520_write_exreg 函数功能:向扩展寄存器写数据 入口参数:addr1 一级地址 addr2 二级地址 data 写入数据 出口参数: 创建时间:2015年6月3日 备 注: -----------------------------------------------------------------------------*/ void nxp520_write_exreg(unsigned char addr1,unsigned char addr2,unsigned char data) { // send_uart2_byte(addr1&0x7F);/*设置成写模式*/ // send_uart2_byte((addr2&0x3F)|0x40);/*写入二级地址*/ // send_uart2_byte(addr1&0x7F);/*设置成写模式*/ // send_uart2_byte((data&0x3F)|0xC0);/*写入数据*/ //rc522Write(addr1,addr2+0x40);/*写入二级地址*/ WriteRawRC(addr1,addr2+0x40); //rc522Write(addr1,data+0xC0);/*写入数据*/ WriteRawRC(addr1,data+0xC0); } /*--------------------------------------------------------------------------- 函数名称:nxp520_read_exreg 函数功能:读扩展寄存器数据 入口参数:addr1 一级地址 addr2 二级地址 出口参数: 创建时间:2015年6月3日 备 注: -----------------------------------------------------------------------------*/ unsigned char nxp520_read_exreg(unsigned char addr1,unsigned char addr2) { unsigned char ret ; //rc522Write(addr1,addr2+0x80);/*写入二级地址*/ WriteRawRC(addr1,addr2+0x80); //rc522Read(addr1,&ret); ret=ReadRawRC(addr1); return ret; } /*--------------------------------------------------------------------------- 函数名称:LPCD_Init 函数功能:低功耗外部卡片侦测 入口参数: 出口参数: 创建时间:2015年6月3日 备 注: -----------------------------------------------------------------------------*/ void LPCD_Init(void) { //rc522Write(WaterLevelReg,0x20);/*接收一半数据产生中断*/ WriteRawRC(WaterLevelReg,0x20); } /*--------------------------------------------------------------------------- 函数名称:LPCD_ParamInit 函数功能:LPCD参数设置 入口参数: 出口参数: 创建时间:2015年6月3日 备 注: -----------------------------------------------------------------------------*/ void LPCD_ParamInit(void) { LPCDBiasCurrent = LPCD_BIAS_CURRENT ; //由样片测试指标决定，在config文件中设定 LpcdGainReduce = 0x3; //1x LpcdGainAmplify = 0x0; //1x LpcdADCRefernce = 0; Timer1Cfg = TIMER1_CFG; Timer2Cfg = TIMER2_CFG; Timer3Cfg = TIMER3_CFG; if (Timer3Cfg > 0xF) //Timer3Cfg用到5bit，所以只能选择16分频 { T3ClkDivK = 2; //16分频 ADCResultFullScale = ((Timer3Cfg - 1)<<3); ADCResultCenter = (ADCResultFullScale >>1); ADCResultThreshold = (ADCResultFullScale >> LPCD_THRESHOLD_RATIO); } else if(Timer3Cfg > 0x7) //Timer3Cfg用到4bit，所以只能选择8分频 { T3ClkDivK = 1; //8分频 ADCResultFullScale = ((Timer3Cfg - 1)<<4); ADCResultCenter = (ADCResultFullScale >>1); //ADCResultThreshold = (ADCResultFullScale >> LPCD_THRESHOLD_RATIO); ADCResultThreshold = CARD_LPCD_REF; } else { T3ClkDivK = 0; //4分频 ADCResultFullScale = ((Timer3Cfg - 1)<<5); ADCResultCenter = (ADCResultFullScale >>1); ADCResultThreshold = (ADCResultFullScale >> LPCD_THRESHOLD_RATIO); } LpcdThreshold_H = ADCResultCenter + ADCResultThreshold; LpcdThreshold_L= ADCResultCenter - ADCResultThreshold; } /*--------------------------------------------------------------------------- 函数名称:LpcdRegisterInit 函数功能:LPCD寄存器初始化 入口参数: 出口参数: 创建时间:2015年6月3日 备 注: -----------------------------------------------------------------------------*/ void LpcdRegisterInit(void) { /*中断设置*/ nxp520_write_reg(ComIEnReg,0x80); nxp520_write_reg(DivlEnReg,0x80); /*LpcdCtrl1*/ nxp520_write_exreg(ExReg,LpcdCtrl1,0x02);/*复位寄存器*/ nxp520_write_exreg(ExReg,LpcdCtrl1,0x22);/*复位放开寄存器*/ nxp520_write_exreg(ExReg,LpcdCtrl1,0x21);/*使能LPCD功能*/ nxp520_write_exreg(ExReg,LpcdCtrl1,(LPCD_IE<<5)|0x10);/*使能LPCD中断*/ nxp520_write_exreg(ExReg,LpcdCtrl1,(LPCD_AUTO_DETECT_TIMES<<5)|0x08);/*配置进场检测次数*/ /*LpcdCtrl2*/ nxp520_write_exreg(ExReg,LpcdCtrl2,((LPCD_TX2RFEN<<4)+(LPCD_CWN<<3)+LPCD_CWP));/*TX2使能，N管大驱动，P管驱动能力为4*/ /*LpcdCtrl3*/ nxp520_write_exreg(ExReg,LpcdCtrl3,LPCD_MODE<<3);/*低功耗模式为DPD，HPDEN=0*/ /*LpcdT1Cfg*/ nxp520_write_exreg(ExReg,LpcdT1Cfg,(T3ClkDivK<<4)+Timer1Cfg);/*T3分频，T1阶段时长*/ /*LpcdT2Cfg*/ nxp520_write_exreg(ExReg,LpcdT2Cfg,Timer2Cfg);/*T2阶段时长*/ /*LpcdT3Cfg*/ nxp520_write_exreg(ExReg,LpcdT3Cfg,Timer3Cfg);/*T2阶段时长*/ /*LpcdVmidBdCfg*/ nxp520_write_exreg(ExReg,LpcdVmidBdCfg,VMID_BG_CFG);/*配置Vmid建立时间*/ /*LpcdAutoWupCfg*/ nxp520_write_exreg(ExReg,LpcdAutoWupCfg,(AUTO_WUP_EN<<3)+AUTO_WUP_CFG);/*配置自动唤醒时间，12s*/ /*LpcdThresholdMin_L*/ nxp520_write_exreg(ExReg,LpcdThresholdMin_L,(LpcdThreshold_L & 0x3F));/*卡片侦测下阈值低6位*/ /*LpcdThresholdMin_H*/ nxp520_write_exreg(ExReg,LpcdThresholdMin_H,(LpcdThreshold_L>>6));/*卡片侦测下阈值高2位*/ /*LpcdThresholdMax_L*/ nxp520_write_exreg(ExReg,LpcdThresholdMax_L,(LpcdThreshold_H& 0x3F));/*卡片侦测上阈值低6位*/ /*LpcdThresholdMax_H*/ nxp520_write_exreg(ExReg,LpcdThresholdMax_H,(LpcdThreshold_H>>6));/*卡片侦测上阈值高2位*/ /*LpcdAutoWupCfg*/ nxp520_write_exreg(ExReg,LpcdAutoWupCfg,(AUTO_WUP_EN<<3)+AUTO_WUP_CFG);/*配置自动唤醒时间，12s*/ } /*--------------------------------------------------------------------------- 函数名称:LpcdInitCalibra 函数功能:Lpcd 调校 入口参数:*CalibraFlag调校标志，是否需要调校 出口参数: TRUE：调校成功 FALSE:调校失败 创建时间:2015年6月3日 备 注: -----------------------------------------------------------------------------*/ unsigned char LpcdInitCalibra(unsigned char *CalibraFlag) { unsigned char ret; unsigned char ADCResult; /*LPCD幅度信息*/ unsigned char GainCalibraFlag; /*增益调教结果*/ unsigned char ADCResult_Pre; /*幅度信息的前一个值*/ /*LpcdCtrl4*/ nxp520_write_exreg(ExReg,LpcdCtrl4,((LpcdGainAmplify << 2) + LpcdGainReduce));/*配置增益*/ /*LpcdBiasCurrent*/ nxp520_write_exreg(ExReg,LpcdBiasCurrent,((LpcdADCRefernce&0x40)>>1)+LPCDBiasCurrent&0x7);/*配置基准电流和参考电压*/ /*LpcdMisc*/ nxp520_write_exreg(ExReg,LpcdMisc,0x01);/*Calib