OPAMP example?

[metanav]

How can we configure and use the OPAMP? I could not find any code related to the OPAMP peripheral in the core. Only there are a few defines in the variants directory.

[maxgerhardt]

This Arduino core was compiled without the "OPAMP" component of the underlying Renesas FSP framework. However, you

1. Can still add those missing files (https://github.com/renesas/fsp/tree/v4.0.0)
2. Use direct writes to the OPAMP peripheral registers

I just copied the missing files next to the sketch and created a working OPAMP example for the Uno R4 WiFi, whose OPAMP pins are exposed on the analog pins A1 (Plus), A2 (Minus) and A3 (Output). I successfully tested a simple voltage follower example.

See https://github.com/maxgerhardt/uno-r4-opamp

[Fashion-Corp]

Dear Alexander Entinger et al, I am a software development professional with 41 calendar-years of experience, hereof somem 15 years in embedded and microprocessors, ranging since the Z80, and up till todays date. I am CTO in SkyFi Energy Aps of Denmark and CEO of Rational Intuitive Ltd. of Kenya. My question is: I am heading a team of quite young developers with maybe 2 to 5 years of experience, mainly on the Web/Fullstack side of it. We have decided on developing a product which will be using the Arduino UNO R4, due to its versatility, Bluetooth, WiFi, CAN-bus, RTC etc., and I would therefore like to understand how I can contribute from time to time on the development of the software residing on GitHub. Sincerely Yours, David Svarrer

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