1-Wire not working (tiny1614 on PA5)

[VigonOracle]

Hi Spence!

I'm getting an issue with OneWire on a atTiny1614 with megaTinyCore, running at 20MHz programmed onArduino IDE 1.8.13, using OneWire from Paul Stoffregen 2.3.7. I'm quite sure the problem isn't the board as I can easily "blink" the PIN_PA5 with a simple blink code.

None of those two work (replacing 1-wire pin by "PIN_PA5" or "1"):

• https://github.com/SpenceKonde/OneWire/blob/master/examples/DS18x20_Temperature/DS18x20_Temperature.pde
• https://github.com/milesburton/Arduino-Temperature-Control-Library/blob/master/examples/Simple/Simple.ino

Analyzing the line it remains high all the time (analyzer doesn't trigger any falling edge).

Except old posts (from 2021), I coudn't find information that would explain why this isn't working.

Any idea / suggestion?

[twaymouth]

I hade the same issue with oneWire 2.3.8, tiny1614 on PA6 and was able to resolve it by merging the patch referenced here:

#215

With the latest version of OneWire_direct_gpio.h

Pre patched file attached if you like, no idea if I have done it correct but it works for me, simply replace the file in your Arduino library.

OneWire_direct_gpio.zip