B4R Question Can the ESP32 ULP be used from B4R?

[Gerardo Tenreiro]

Hi,
I know it's a lot to ask, but the ESP32 has two cores and a ULP coprocessor that I was planning to use for a time-critical issue, setting a pin to "0" after a time that is set to "1". I know it seems easy and simple to do on the ESP32, but in the application I have both cores quite saturated and time is very critical, so I thought of using the ULP.

Can it be used from B4R?

Thank you very much.

 

[Erel]

Do you know how to do it with Arduino IDE? If so you might be able to implement it with inline C code.

 

[Gerardo Tenreiro]

In the Arduino IDE there are several ways to do it but it is always with a library that I do not have in B4R such as
"https://github.com/boarchuz/HULP" -> this would be a great library to be able to use the ULP of the ESP32, at the moment I am testing it in ARDUINO and I think it works correctly.
I am also reviewing other examples and options, but the good thing would be to have an option that works and is compatible with B4R.

The ULP is part of the ESP32 and we have it unused with the amount of trivial things that we dedicate the main process to, we could download part of it in the ULP, a simple flasher, or the ADC...

Thank you very much for being interested in this Erel.