STC89C52单片机RC522射频读写卡器以及OLED显示源程序 -

#include <stc8.h>
#include <main.h>
#include <stdio.h>
#include "mfrc522.h"
#include "oled12864.h"
#include "codetab.h"
#include "intrins.h"
unsigned char code DefaultKey[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
unsigned char idata TagType[2];
unsigned char idata SelectedSnr[4];
/////////////////////////////////////////////////////////////////////
//系统初始化
/////////////////////////////////////////////////////////////////////
void InitializeSystem()
{
P0 = 0xFF; P1 = 0xFF; P3 = 0xFF; P5 = 0xFF;
PcdReset(); //RC522复位
PcdAntennaOff(); //关闭RC522天线
PcdAntennaOn(); //打开RC522天线
M500PcdConfigISOType( 'A' ); //设置RC522工作方式
}
void main( )
{
char idata status,word_number;
unsigned char idata snr, buf[16];
InitializeSystem( ); //系统初始化
OLED_Init(); //OLED初始化
OLED_Fill(0xff); //全屏亮
delayms(100);
OLED_Fill(0x00); //全屏灭
delayms(100);
while (1)
{
status= PcdRequest(REQ_ALL,TagType); //RC522开始寻卡
if(!status)
{
status = PcdAnticoll(SelectedSnr); //防冲撞
if(!status)
{
status=PcdSelect(SelectedSnr); //选择卡片
if(!status)
{
snr = 0; //选择卡片扇区0
status = PcdAuthState(KEYA, (snr*4+3), DefaultKey, SelectedSnr); //校验0扇区密码，密码位于每一扇区第3块
{
if(!status)
{
status = PcdRead((snr*4+1), buf); //读卡，读取0扇区1块数据到buf[16]
for(word_number=0; word_number<3; word_number++)
{
OLED_P16x16Ch(40+word_number*16,0,word_number); //通过16*16点阵来显示汉字 -- word_number表示字表数组的位置
}
OLED_P8x16Str(50,3,buf); //将卡号在OLED上显示出来
delayms(800);
OLED_CLS(); //清屏
if(!status)
{
WaitCardOff(); //等待IC卡离开
}
}
}
}
}
}
}
}

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