这是一个使用stm32使用mtr4048 读取UID的代码，有点乱，但是肯定调试好了 -

//头文件调用
#include "usually.h"
#include "usart.h"
#include "rtc.h"
#include "stm32f10x_spi.h"
//#include "define.h"
#include "iso14443_4.h"
#include "iso14443a.h"
#include "mh523.h"
#include "stdio.h"
#include "mfrc522.h"
//声明变量
extern struct Data_Time timer;
void delay_t(int time)
{
volatile int d = time * 10;
int i = 0;
for(;i < time; i++)
d = d+1;
}
//函数申明
void Init_LED(void);
void Init_NVIC(void);
void Delay_Ms(uint16_t time);
void Delay_Us(uint16_t time);
#define SPI_FLASH_CS_HIGH() GPIO_SetBits(GPIOA, GPIO_Pin_4)
#define SPI_FLASH_CS_LOW() GPIO_ResetBits(GPIOA, GPIO_Pin_4)
void SPI_FLASH_Init(void)
{
SPI_InitTypeDef SPI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOD, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
/* SCK */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* MISO */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* MOS */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* CS */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
SPI_FLASH_CS_HIGH();
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_256;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStructure);
SPI_Cmd(SPI1, ENABLE);
}
/*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
** 函数名称: main
** 功能
描述: 主函数入口
** 参数描述：无
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::*/
int main(void)
{
uint8_t t=0;
int ret = 0;
int fd;
u8 status = 0;
int block = 0;
u8 preaddata[16];
int j = 0, i = block - block % 4;
u8 pkey[] = {0x20, 0x10, 0x03, 0x22, 0x00, 0x00};
u8 psak;
u8 tag_type[16] = {0};
SystemInit(); //系统时钟配置
Init_NVIC(); //中断向量表注册函数
//Init_Usart(); //串口引脚配置
//Usart_Configure(115200); //串口配置设置波特率为115200
Init_LED(); //LED初始化
SPI_FLASH_Init();
#if 1
//Init_RTC(); //内部RTC初始化
//Time_Update(2013,6,26,0,0,0);
// pcd_lpcd_start();
//sleep(1);
i = 0;
//for(;;)
//{
// ret = ReadRawRC (0x0 + i++);
// status = ret;
//}
PcdReset();
//PcdAntennaOff();
//PcdAntennaOn();
__loop_mian:
M500PcdConfigISOType('B');
///////////////////////////////////////
//status = PcdRequest(0x52, tag_type);
status = pcd_request_b(0x52, tag_type);
if (status != 0)
{
delay_t(100);
PcdAntennaOff();
goto __loop_mian;
}
#if 1
status = pcd_attri_b(0x52, tag_type);
if (status != 0)
{
delay_t(100);
goto __loop_mian;
}
status = get_idcard_num(0x52, tag_type);
if (status != 0)
{
delay_t(100);
goto __loop_mian;
}
goto __loop_mian;
/////////////////////////////////
status = PcdAnticoll(tag_type);
if(status != 0)
{
delay_t(100);
goto __loop_mian;
}
#if 1
// printf("ID %02X%02X%02X%02X\n", tag_type[0], tag_type[1], tag_type[2], tag_type[3]);
////////////////////////////
status = PcdSelect(tag_type);
if(status != 0)
{
delay_t(100);
goto __loop_mian;
}
// printf("psak %02X\n", psak);
status = PcdAuthState(0x60, 7, pkey,tag_type );
if(status != 0)
{
delay_t(100);
goto __loop_mian;
}
PcdRead(4,preaddata);
if(status != 0)
{
delay_t(100);
goto __loop_mian;
}
LED1 = ~LED1;
delay_t(10000);
LED1 = ~LED1;
#endif
goto __loop_mian;
#endif
#endif
}
/*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
** 函数名称: LED_Init
** 功能描述: LED IO引脚配置
** 参数描述：无
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::*/
void Init_LED(void)
{
GPIO_InitTypeDef GPIO_InitStructure; //定义一个GPIO结构体变量
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE); //使能各个端口时钟，重要！！！
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 ; //配置LED端口挂接到6、12、13端口
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //通用输出推挽
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz; //配置端口速度为50M
GPIO_Init(GPIOA, &GPIO_InitStructure); //将端口GPIOD进行初始化配置
}
/*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
** 函数名称: NVIC_Configuration
** 功能描述: 系统中断配置
** 参数描述：无
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::*/
void Init_NVIC(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
#ifdef VECT_TAB_RAM //向量表基地址选择
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0); //将0x20000000地址作为向量表基地址(RAM)
#else
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0); //将0x08000000地址作为向量表基地址(FLASH)
#endif
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); //先占优先级1位,从优先级3位
NVIC_InitStructure.NVIC_IRQChannel = RTC_IRQn; //RTC全局中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //先占优先级1位,从优先级3位
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //先占优先级0位,从优先级4位
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能该通道中断
NVIC_Init(&NVIC_InitStructure); //根据NVIC_InitStruct中指定的参数初始化外设NVIC寄存器
}
/*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
** 函数名称: Delay_Ms_Ms
** 功能描述: 延时1MS (可通过仿真来判断他的准确度)
** 参数描述：time (ms) 注意time<65535
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::*/
void Delay_Ms(uint16_t time) //延时函数
{
uint16_t i,j;
for(i=0;i<time;i++)
for(j=0;j<10260;j++);
}
/*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
** 函数名称: Delay_Ms_Us
** 功能描述: 延时1us (可通过仿真来判断他的准确度)
** 参数描述：time (us) 注意time<65535
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::*/
void Delay_Us(uint16_t time) //延时函数
{
uint16_t i,j;
for(i=0;i<time;i++)
for(j=0;j<9;j++);
}
/*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
End:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::*/

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