1 | //Abschnitt der Main Funktion:
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2 | uint8_t Login_Password_Byte[4] = {0x00, 0x00, 0x00, 0x00}; /*defined as a global variable
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3 | void AskForPassword(void)
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4 | { UART_sendCString("Default password (j/n)?: ");
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5 |
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6 | while(UART_Not_Recieved)
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7 | {
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8 |
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9 | }
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10 | UART_putNewLine();
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11 | UART_Not_Recieved = true;
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12 | if(RX == 0x6A)
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13 | {
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14 | Login_Password_Byte[0] = 0x00;
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15 | Login_Password_Byte[1] = 0x00;
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16 | Login_Password_Byte[2] = 0x00;
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17 | Login_Password_Byte[3] = 0x00;
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18 |
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19 | }else{
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20 | UART_sendCString("Please enter a valid 4 character password: ");
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21 |
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22 | while(UART_Not_Recieved)
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23 | {
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24 |
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25 | }
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26 | Login_Password_Byte[0] = RX;
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27 | UART_Not_Recieved = true;
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28 | while(UART_Not_Recieved)
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29 | {
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30 |
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31 | }
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32 | Login_Password_Byte[1] = RX;
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33 | UART_Not_Recieved = true;
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34 | while(UART_Not_Recieved)
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35 | {
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36 |
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37 | }
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38 | Login_Password_Byte[2] = RX;
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39 | UART_Not_Recieved = true;
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40 | while(UART_Not_Recieved)
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41 | {
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42 |
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43 | }
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44 | Login_Password_Byte[3] = RX;
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45 | UART_Not_Recieved = true;
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46 | UART_putNewLine();
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47 | }
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48 | }
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49 | //Abschnitt der LOGIN Funktion
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50 | oid Login(uint8_t Byte1, uint8_t Byte2, uint8_t Byte3, uint8_t Byte4)
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51 | {
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52 | uint8_t ui8Offset = 0;
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53 | g_pui8TrfBuffer[ui8Offset++] = 0x8F; // Reset FIFO
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54 | g_pui8TrfBuffer[ui8Offset++] = 0x91; // Send with CRC
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55 | g_pui8TrfBuffer[ui8Offset++] = 0x3D; // Write Continuous
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56 | g_pui8TrfBuffer[ui8Offset++] = 0x00; //length
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57 | g_pui8TrfBuffer[ui8Offset++] = 0xF0; // length
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58 | g_pui8TrfBuffer[ui8Offset++] = 0x22; // ISO15693 flags
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59 | g_pui8TrfBuffer[ui8Offset++] = 0xE4; // Login command code
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60 | g_pui8TrfBuffer[ui8Offset++] = 0x16; //IC Mfg Code
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61 | g_pui8TrfBuffer[ui8Offset++] = g_pui8Iso15693UId[0]; // Tag UID
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62 | g_pui8TrfBuffer[ui8Offset++] = g_pui8Iso15693UId[1]; // Tag UID
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63 | g_pui8TrfBuffer[ui8Offset++] = g_pui8Iso15693UId[2]; // Tag UID
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64 | g_pui8TrfBuffer[ui8Offset++] = g_pui8Iso15693UId[3]; // Tag UID
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65 | g_pui8TrfBuffer[ui8Offset++] = g_pui8Iso15693UId[4]; // Tag UID
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66 | g_pui8TrfBuffer[ui8Offset++] = g_pui8Iso15693UId[5]; // Tag UID
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67 | g_pui8TrfBuffer[ui8Offset++] = g_pui8Iso15693UId[6]; // Tag UID
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68 | g_pui8TrfBuffer[ui8Offset++] = g_pui8Iso15693UId[7]; // Tag UID
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69 |
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70 | g_pui8TrfBuffer[ui8Offset++] = Byte1; // Password
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71 | UART_putByte(Byte1);
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72 | g_pui8TrfBuffer[ui8Offset++] = Byte2;
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73 | UART_putByte(Byte2);
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74 |
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75 | g_pui8TrfBuffer[ui8Offset++] = Byte3;
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76 | UART_putByte(Byte3);
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77 |
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78 | g_pui8TrfBuffer[ui8Offset++] = Byte4;
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79 | UART_putByte(Byte4);
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80 | TRF79xxA_writeRaw(&g_pui8TrfBuffer[0], ui8Offset); // Issue the write Password command
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81 | g_sTrfStatus = TRF79xxA_waitRxData(5,15); // 5 millisecond TX timeout, 15 millisecond RX timeout
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82 |
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83 | if (g_sTrfStatus == RX_COMPLETE) // If data has been received
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84 | {
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85 | if (g_pui8TrfBuffer[0] == 0x00) // Confirm "no error" in response flags byte
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86 | {
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87 | UART_sendCString(" Login successful ");
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88 | UART_putNewLine();
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89 | }
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90 | else
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91 | {
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92 | UART_sendCString(" Login failed (wrong password)");
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93 | Write_Data = false;
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94 | New_Password = false;
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95 | Change_Protect_Status = false;
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96 | UART_putNewLine();
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97 | }
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98 | }
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99 | }
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