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adafruit / Adafruit_FreeTouch

A QTouch-compatible library
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Add support for M4 #11

Open inventhouse opened 5 years ago

inventhouse commented 5 years ago

Lack of support for M4 (specifically AT SAM D51) is blocking touchio support in CircuitPython: https://github.com/adafruit/circuitpython/issues/268

I'd really like to have touch inputs on the Adafruit M4-based boards, but the data sheet basically just says "use qtouch"; how can I help?

tannewt commented 5 years ago

We'd love to have it too! A while ago I spent time trying to document the registers on the SAMD51 and port FreeTouch to it. I did enough to believe it was tough and not the same register layout as the SAMD21.

I think the easiest approach would be to use qtouch. However, if you like figuring out how something works, freetouch support would be awesome.

inventhouse commented 5 years ago

I'd love to try some reverse-engineering, but I don't know when I'll find the time.

Why doesn't touchio use qtouch on the M4 builds?

tannewt commented 5 years ago

Stubborn-ness mainly. We definitely could. It's just not the ideal.

modelkayak commented 4 years ago

Plus one, would definitely like support for this. Especially given the larger size of the M4.

Any hints on how one could help you all add support?

DeamEyes commented 4 years ago

Also interested in a solution to this. I've looked for any tutorials to add the atmel library, but haven't found anything step-by-step. Is it possible to add qtouch in an unofficial branch?

wero1414 commented 1 year ago

Hello! we did the port to the SAML21 which clocks are kind of related to the SAMD51 in this fork if it helps to anybody to be looking at the SAMD51 port.

davepruitt commented 1 year ago

I am also very interested in support for the SAMD51. Is there any timeline on when this could happen?

s-light commented 1 year ago

I landed her from this question: https://arduino.stackexchange.com/questions/43663/built-in-capacitive-touch-detection-with-samd21-development-board-arduino-zero#43694

LibrePTC is not update to include samd51 support And i Aldi Süd not find any other lib..

Maybe as a work around (not tested yet) i can youse something like: https://github.com/martin2250/ADCTouch

Are there any other libs in this direction that are known to work?