rc522的读卡程序，主要实现读卡功能串口发送卡号 -

#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "lcd.h"
#include "spi2.h"
#include "rc522.h"
#include "usb_lib.h"
#include "hw_config.h"
#include "usb_pwr.h"
unsigned char SN[4]; //卡号
extern u8 IDA[10];
extern u8 IDB[10];
int main(void)
{
u8 cmdb[2];
u8 status;
// u16 t;
// u16 len;
// u16 times=0;
u8 usbstatus=0;
Stm32_Clock_Init(9); //系统时钟设置
uart_init(72,115200); //串口初始化为115200
delay_init(72); //延时初始化
OUTPUT_Init(); //输出模块初始化
LED_Init(); //初始化与LED连接的硬件接口
LCD_Init(); //初始化LCD
SPI1_Init();
SPI1_SpeedSet(6); //APB1的256分频
POINT_COLOR=RED; //设置字体为红色
LCD_ShowString(30,50,200,16,16,"WarShip STM32");
LCD_ShowString(30,70,200,16,16,"USB Virtual USART TEST");
LCD_ShowString(30,90,200,16,16,"ATOM@ALIENTEK");
LCD_ShowString(30,110,200,16,16,"2015/1/28");
LCD_ShowString(30,130,200,16,16,"USB Connecting...");//提示USB开始连接
delay_ms(1800);
USB_Port_Set(0); //USB先断开
delay_ms(700);
USB_Port_Set(1); //USB再次连接
Set_USBClock();
USB_Interrupts_Config();
USB_Init();
CLR_NFC_RST;
delay_ms(10);
SET_NFC_RST;
delay_ms(1);
PcdConfig('A');
delay_ms(1);
while(1)
{
if(usbstatus!=bDeviceState)//USB连接状态发生了改变.
{
usbstatus=bDeviceState;//记录新的状态
if(usbstatus==CONFIGURED)
{
POINT_COLOR=BLUE;
LCD_ShowString(30,130,200,16,16,"USB Connected ");//提示USB连接成功
LED1=0;//DS1亮
}else
{
POINT_COLOR=RED;
LCD_ShowString(30,130,200,16,16,"USB disConnected ");//提示USB断开
LED1=1;//DS1灭
}
}
#if 1
PcdConfig('A');
delay_ms(1);
cmdb[1] = 0x52;
delay_ms(1);
status = ComReqA(cmdb);
if(status == MI_OK)
{
LED0 = 0;
usb_printf("ID:%02x %02x %02x %02x\r\n",IDA[0],IDA[1],IDA[2],IDA[3]);//发送卡号
//printf("ID:%02x %02x %02x %02x\r\n",IDA[0],IDA[1],IDA[2],IDA[3]);//发送卡号
}
else LED0 = 1;
delay_ms(10);
#endif
#if 1
PcdConfig('B');
delay_ms(1);
cmdb[1] = 0x08;
status = ComReqB(cmdb);
if(status == MI_OK)
{
LED1 = 0;
usb_printf("ID:%02x %02x %02x %02x %02x\r\n",IDB[0],IDB[1],IDB[2],IDB[3],IDB[4]);
//printf("ID:%02x %02x %02x %02x %02x\r\n",IDB[0],IDB[1],IDB[2],IDB[3],IDB[4]);//发送卡号
}
#endif
CLR_NFC_RST;
delay_ms(250);
LED1 = 1;
LED0 = 1;
#if 0
if(USB_USART_RX_STA&0x8000)
{
len=USB_USART_RX_STA&0x3FFF;//得到此次接收到的数据长度
printf("\r\n您发送的消息为:%d\r\n\r\n",len);
for(t=0;t<len;t++)
{
USB_USART_SendData(USB_USART_RX_BUF[t]);//以字节方式,发送给USB
}
printf("\r\n\r\n");//插入换行
USB_USART_RX_STA=0;
}
else
{
times++;
if(times%5000==0)
{
usb_printf("\r\n战舰STM32开发板USB虚拟串口实验\r\n");
usb_printf("正点原子@ALIENTEK\r\n\r\n");
}
if(times%200==0)usb_printf("请输入数据,以回车键结束\r\n");
if(times%30==0)LED0=!LED0;//闪烁LED,提示系统正在运行.
delay_ms(10);
}
#endif
}
}

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