MFRC522串口通信的问题

发表于 2016-5-18 21:57

我对这方面不太懂！！！
我在网上下的程序，运行后，发现程序好像停在了初始化的程序了！！！
char M500PcdConfigISOType(unsigned char type)
{
if (type == 'A')                   //ISO14443_A
{
   ClearBitMask(Status2Reg,0x08);
   WriteRawRC(ModeReg,0x3D);//3F
   WriteRawRC(RxSelReg,0x86);//84
   WriteRawRC(RFCfgReg,0x7F); //4F
   WriteRawRC(TReloadRegL,30);//tmoLength);// TReloadVal = 'h6a =tmoLength(dec)
   WriteRawRC(TReloadRegH,0);
   WriteRawRC(TModeReg,0x8D);
   WriteRawRC(TPrescalerReg,0x3E);
delay_10ms(1);
      PcdAntennaOn();
}
else{ return -1; }

return MI_OK;
}

发表于 2016-5-18 21:58

void InitializeSystem()
{
P0 = 0xFF; P1 = 0xFF; P3 = 0xFF;
ET2 = 0;
T2CON = 0x04;
PCON = 0x80;
SCON = 0x70;
TMOD = 0x21;       //TMOD = 0x22;

TH1 = BAUD_9600;
TL1 = TH1;
TR1 = 1;          // 波特率发生器
TH0 = 0x60;
TL0 = 0x60;
TR0 = 0;

ET0=0;
ET1=0;
EA=1;
EX0=1;
IT0 = 1;
TR2=0;
ES = 1;
CmdValid=0;

LED_GREEN = 1;
PcdReset();
PcdAntennaOff();
PcdAntennaOn();
LED_GREEN = 0;
M500PcdConfigISOType( 'A' );
// LED_GREEN = 0;
delay_10ms(10);
LED_GREEN = 1;
delay_10ms(10);
LED_GREEN = 0;
}

发表于 2016-5-18 22:00

但是看网上的程序都是这样子写的，小白求支招！！！

[51单片机] MFRC522串口通信的问题

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