Asking again... Getting ULP tool example “espidf-ulp-pulse” to work

1

It’s been a few months so I thought I’d ask again if anyone has had success with ULP and ESP32-S3.
Here is the background… THANKS!

This is about the code from here: platform-espressif32/examples/espidf-ulp-pulse/

After a few days of trying lots of things I find about using ULP under platformio, I finally surrender to ask for help…when suddenly I figure out the following…

I am sticking directly to the code downloaded from this URL. No embellishments… Just want to get something running first.

First I encounter that ulp.h is not found. … EXAMPLE CODE SHOULD READ:

//#include "ulp.h"  // this does not work
#include "esp32/ulp.h"  // but this does...

So yea! that compiles. Now I need it to run on ESP32_S3_DEVKIT1 (for which I use [env:esp32-s3-devkitc-1] . THIS IS WHERE I AM STUCK. It seems the whole environment running under the espidf framework is missing paths to lots of .h files that are required. Has anyone gotten this working on S3?

2

Therea re no recent ULP issues in platform-espressif32: Issues · platformio/platform-espressif32 · GitHub

So, since what you want is not working, could you open a new issue there?

3

Thanks. Done.

4

Added the S3 in the example. Compiles fine.

Oh just saw the Platformio repo still has the old examples. I updated the examples using the code from espressif.

5

I completely cleaned out and rebuilt my VSC/platformio as I could not get anything at all to build under the espidf framework. So I have a complete new install with Espressif 32 6.3.2 and can build basic programs unrelated to ULP. At this point though, after spending another full day on this, I don’t seem to have either esp32s3/ulp.h nor ulp_main.h (and presumably also not the correct source for ulp_main and ulp related to these .h files. I have not been able to find a source for those. Not sure why they did not build into the espressif 32 installation. Any pointers on either how to get those to install or where I can source the correct files? (I find other versions such as from the ulptool-pio library but I’m pretty sure that’s not what I am looking for).

After several year and hundreds of projects on many platforms using VSC/platformio, this is the first I have needed to use the espidf framework so I am not familiar with its ways.

Thanks!