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Handle MAX31855 error conditions

pull/1/head
Scott Lahteine 8 years ago
parent
commit
149b8d9e4b
  1. 16
      Marlin/temperature.cpp

16
Marlin/temperature.cpp

@ -1333,8 +1333,22 @@ void Temperature::disable_all_heaters() {
WRITE(MAX6675_SS, 1); // disable TT_MAX6675 WRITE(MAX6675_SS, 1); // disable TT_MAX6675
if (max6675_temp & MAX6675_ERROR_MASK) if (max6675_temp & MAX6675_ERROR_MASK) {
SERIAL_ERROR_START;
SERIAL_ERRORPGM("Temp measurement error! ");
#if MAX6675_ERROR_MASK == 7
SERIAL_ERRORPGM("MAX31855 ");
if (max6675_temp & 1)
SERIAL_ERRORLNPGM("Open Circuit");
else if (max6675_temp & 2)
SERIAL_ERRORLNPGM("Short to GND");
else if (max6675_temp & 4)
SERIAL_ERRORLNPGM("Short to VCC");
#else
SERIAL_ERRORLNPGM("MAX6675");
#endif
max6675_temp = 4000; // thermocouple open max6675_temp = 4000; // thermocouple open
}
else else
max6675_temp >>= MAX6675_DISCARD_BITS; max6675_temp >>= MAX6675_DISCARD_BITS;

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