Hello, I’m trying to add the ULP functionality to my project in order to read the Hall Sensor integrated in the ESP32 but VS is not able to find the ulp_main.h library needed. By looking in to the web, I found recommendations about how to add ULP toolchain but I don’t know if Platformio does it al…

Can you upload your current to a github repo and reference the working Arduion IDE version of the project?

I copy pasted the ulp_adc_example_main.c and adc.s files into a new project using ESP-IDF framework from this repo: https://github.com/espressif/esp-idf/tree/master/examples/system/ulp_adc/main Regards, Pascal.

Hello @maxgerhardt , Have you had time to take a look on this? I did some experiments, like removing the ulp_main.h and see what happens but what I get now is that VisualStudio can’t recognize assembly code… so seems like I really need to install the ULP toolchain somehow. I’m block on this, hope s…

I’m very sure the ESP-IDF has special build-scripts which invoke the assembler for the ULP and does other magic to the symbols to make the compilation work. The same for the Arduino IDE in which this is now also possible (refer to #252 ESP32 Ultra Low Power (ULP) core made easy in the Arduino IDE in…

Yeah pretty much what I thought. [image] GitHub - duff2013/ulptool: Program the esp32 ULP coprocessor in Arduino Program the esp32 ULP coprocessor in Arduino. Contribute to duff2013/ulptool development by creating an account on GitHub. Under the Hood: All …

Done, took a look into the video which is not very useful as is for Arduino in Arduino IDE. About the files needed to program the esp32 ulp, well is a tutorial for MAC and again for Arduino IDE… not useful for the reason of this purpose. I’m using Windows. Also, took a look into the issue in espres…

Found the next steps to add the ULP Toolchain for Windows: https://github.com/espressif/esp-iot-solution/blob/master/documents/low_power_solution/esp32_ulp_co-processor_and_assembly_environment_setup_en.md#32-windows How could I adjust it to make it to work in C:.platformio\packages\framework-espi…

Bottom line: needs the binutils for the ESP32 ULP ( Releases · espressif/binutils-esp32ulp · GitHub ), esp32ulp-elf-as needs pyhton implementation of the compilation process Page not Found - ESP32 - — ESP-IDF Programming Guide latest documentation esp-idf/component_ulp_common.cmake at master · es…

Ok! Thanks for the information. Is there any expectation that PlatformIO will add this support?

@ivankravets will sure prioritize feature implementations according to their community votes / importances, so the best thing we can do is upvote the issue or start writing code ourselves for a pull request :slight_smile:

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Ulp_main.h is not found in ESP-IDF when I compile

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maxgerhardt June 28, 2019, 3:20pm 18

Solved in latest release see Espressif 32 dev/platform v1.9.0: ULP programming, ESP-IDF 3.2.2 and platform-espressif32/examples/espidf-ulp-adc at develop · platformio/platform-espressif32 · GitHub