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adding PCD_DumpVersionToSerial

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This commit is contained in:
kkloesener
2020-11-03 21:34:17 +01:00
parent a78cfa44da
commit a2c9c18e83
1 changed files with 23 additions and 0 deletions
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23
MFRC522_I2C.cpp
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@ -1213,6 +1213,29 @@ const __FlashStringHelper *MFRC522::PICC_GetTypeName(byte piccType ///< One of t
} }
} // End PICC_GetTypeName() } // End PICC_GetTypeName()
/**
* Dumps debug info about the connected PCD to Serial.
* Shows all known firmware versions
*/
void MFRC522::PCD_DumpVersionToSerial() {
// Get the MFRC522 firmware version
byte v = _dev->PCD_ReadRegister(VersionReg);
Serial.print(F("Firmware Version: 0x"));
Serial.print(v, HEX);
// Lookup which version
switch(v) {
case 0x88: Serial.println(F(" = (clone)")); break;
case 0x90: Serial.println(F(" = v0.0")); break;
case 0x91: Serial.println(F(" = v1.0")); break;
case 0x92: Serial.println(F(" = v2.0")); break;
case 0x12: Serial.println(F(" = counterfeit chip")); break;
default: Serial.println(F(" = (unknown)"));
}
// When 0x00 or 0xFF is returned, communication probably failed
if ((v == 0x00) || (v == 0xFF))
Serial.println(F("WARNING: Communication failure, is the MFRC522 properly connected?"));
} // End PCD_DumpVersionToSerial()
/** /**
* Dumps debug info about the selected PICC to Serial. * Dumps debug info about the selected PICC to Serial.
* On success the PICC is halted after dumping the data. * On success the PICC is halted after dumping the data.