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標題: 單片機+rc522關于寫密碼寫不進去，困擾了幾天，幫我看一下例程 [打印本頁]

作者: 莫小豪 時間: 2020-5-4 13:59
標題: 單片機+rc522關于寫密碼寫不進去，困擾了幾天，幫我看一下例程
#define ReadWriteArea 0x01
extern unsigned char UID[4];
extern int g_SPI_Fd;

unsigned char SetKey_read[16];
unsigned char DefaultKey[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
unsigned char ResetKey[6] = {0xAB, 0xCD, 0xEF, 0xFF, 0xFF, 0xFF};
unsigned char SetKey_write[16] = {0xAB, 0xCD, 0xEF, 0xFF, 0xFF, 0xFF,
                                                                              0xFF, 0x07, 0x80, 0x69,
                                                                              0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
unsigned char Default_write[16] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
                                                                              0xFF, 0x07, 0x80, 0x69,
                                                                              0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
主程序中寫卡部分代碼
void my_register(void)
{
      while(1)
      {
            int i,j;
            HandleConfigMenu('A');//讀卡
            my_status = PcdSelect(UID);
            PcdHalt(); //我是這里設置的休眠，不知道會不會對讀寫有影響
            printf("Select:%x\n", my_status);
            if(MI_OK != my_status) continue;
            my_status = PcdAuthState(PICC_AUTHENT1A , ReadWriteArea, ResetKey, UID);//尋卡
            if(MI_OK == my_status)
            {
                     printf("The card has been registered!!!\n");
                     usleep(500000);

                     break;
            }
            else
            {
                     printf("Check\n");
                     my_status = PcdWrite(ReadWriteArea, SetKey_write);
                     printf("PcdWrite: %x\n", my_status);
                     printf("WRITE ...\n");
                     if(MI_OK == my_status)
                     {
                              my_status = MI_ERR;
                              printf("Registering...\n");
                              buzzer_control(DEVICE_BUZZER,BUZZERON);
                              usleep(500000);
                              buzzer_control(DEVICE_BUZZER,BUZZEROFF);
                              printf("!!!!!!!!\n");
                              printf("\n");
                              printf("The card register successfully!\n");
                              printf("\n");
                              printf("!!!!!!!!\n");

                              break;
                     }
            }
      }
}

下面貼出來PcdWrite、PcdAuthState相關代碼，有懂的朋友幫我看一下是不是哪里參數設置錯了
char PcdWrite(unsigned char addr,unsigned char *pData)
{
      char status;
      unsigned int  unLen;
      unsigned char i,ucComMF522Buf[MAXRLEN];

      ucComMF522Buf[0] = PICC_WRITE;
      ucComMF522Buf[1] = addr;
      CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);

      status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);

      if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A)) //根據終端打印信息，是這里出錯
      { printf("1.\n");
            status = MI_ERR; }

      if (status == MI_OK)
      {
            for (i=0; i<16; i++)
            { ucComMF522Buf[ i] = *(pData+i); }
            CalulateCRC(ucComMF522Buf,16,&ucComMF522Buf[16]);

            status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,18,ucComMF522Buf,&unLen);
            if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
            { printf("2.\n");
                     status = MI_ERR; }
      }

      return status;
}

char PcdAuthState(unsigned char auth_mode,unsigned char addr,unsigned char *pKey,unsigned char *pSnr)
{
      char status;
      unsigned int  unLen;
      unsigned char i,ucComMF522Buf[MAXRLEN];

      ucComMF522Buf[0] = auth_mode;
      ucComMF522Buf[1] = addr;
      for (i=0; i<6; i++)
      { ucComMF522Buf[i+2] = *(pKey+i); }
      for (i=0; i<6; i++)
      { ucComMF522Buf[i+8] = *(pSnr+i); }

      status = PcdComMF522(PCD_AUTHENT,ucComMF522Buf,12,ucComMF522Buf,&unLen);
      if ((status != MI_OK) || (!(ReadRawRC(Status2Reg) & 0x08)))
      { status = MI_ERR; }

      return status;
}

void Auto_Reader(void)
{
      int i = 0;
      while(1)
      {
            if(PcdRequest(0x26,UID) == MI_OK)
            {
                     if(PcdAnticoll(UID) == MI_OK)
                     {
                              printf("\n");
                              printf("\n");
                              printf("\n");
                              printf("ID:\t");
                              for(i=0; i<4; i++)
                              {
                                    printf("%x", UID[ i]);
                              }
                              printf("\n");
                              printf("\n");
                              printf("\n");
                     }
                     break;
            }
            else
            {
                     printf(".");
            }

            usleep(300000);
      }
}

作者: 莫小豪 時間: 2020-5-4 14:00
我在第二頁po出了其他相關代碼~有大佬能幫看一下，看了很多歷程后沒轍了

作者: lecturer 時間: 2020-5-12 01:03

莫小豪發表于 2020-5-4 14:00
我在第二頁po出了其他相關代碼~有大佬能幫看一下，看了很多歷程后沒轍了

if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A)) //那就重點檢查這里

將判斷拆開

if (status != MI_OK)
   printf("RC522與卡通信失敗");
if (unLen != 4)
   printf("返回數據長度出錯");
if ((ucComMF522Buf[0] & 0x0F) != 0x0A)
   printf("塊第一字節不為0A");

歡迎光臨 (http://m.zg4o1577.cn/bbs/)

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