If I want to use 1wire then I would also use the corresponding 1wire library. This is a half-duplex serial transmission over a serial interface. The SoftwareSerial library included in the Seeeduino SAMD21 IDE has a bug. Now an expert is needed to correct this bug. This library was written by Chiara Ruggeri ([email protected]). Unfortunately this eMail address does not work anymore.
Github space at: https://github.com/chiararuggeri