Several fixes to 1-Wire on ESP32

[up-streamer]

Description

• Add missing configuration for the GPIO pin as Open Drain.
• Fix lockup on search loop.

Motivation and Context

This is necessary to make 1-Wire bus work correctly on ESP32.

• Fixes Instabilities on 1-Wire when seaching devices Home#567.
• Fixes UART pins aren't configured correctly to use 1-Wire Home#540.

How Has This Been Tested?

It was tested by connecting three 18B20 sensors, In C#, looping to get the address and than looping to read each one temperature.
This also remove the need of a Open-drain or Open-Collector non inverter drive on UART TX output pin.
The 4.7k pull up resistor on 1-Wire bus is now mandatory as per 1-wire protocol.

Types of changes

• Improvement (non-breaking change that improves a feature, code or algorithm)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

Signed-off-by: Up-Streamer [email protected]

[nfbot]

Hi @up-streamer,

I'm nanoFramework bot.
Thank you for your contribution!

A human will be reviewing it shortly. 😉

[josesimoes]

LGTM.
Please just remove the other 2 files besides the 1Wire controller one. They don't belong to this PR.

[up-streamer]

Removed unecessary files for this PR

[josesimoes]

For some reason the CMakeSettings.json file is still showing…
Make sure you revert any changes to it. The file is not to delete.

[josesimoes]

LGTM.

(I've reverted the changes in the cmake json file myself)

[up-streamer]

Thanks!
I have recoverted to my previous CMakeSettings.json, I deleted but the original was lost in my attempts to build it.
Thanks for better title too.