I've recently been dipping my toes into Nim as a C/C++ replacement for writing for the ESP32-S3. Using nim-arduino and nim-platformio, I've managed to compile a simple blink, and with a tool called Futhark, I've also managed to wrap and compile LVGL for displays. However, a big part of writing for esp32 involves lower level access to functions like those in FreeRTOS for multi-threading etc.
As of writing, I've spent about 3 days fighting with Futhark and Nimterop trying to generate a wrapper to communicate with the IDF, but I've had no luck. When trying to run Futhark in the "components" directory of the IDF source, I get error after error with missing headers etc. I've even wrote a python script to catch the missing headers and write empty files in their place (I know it's silly but I was desperate), to no avail. After LVGL wrapped like butter, I cannot seem to understand why IDF won't. There are clearly differences in scale between the two, and the IDF requires configuration before building, but how does that apply here?
Is there something I'm missing or is ESP-IDF really just too complex for automatic wrapping?
Any help appreciated!
PS. Although Nesper exists and accomplishes the same goal, it is written for older versions of the IDF and seems unmaintained. Additionally, as new versions of the IDF come out, a repo like that would have to be manually updated, while Futhark wrapping is automatic.
PPS. If manual memory management is required to use ESP-IDF in Nim, I am willing to make that sacrifice. However... it would be nice if there was cleaner interop with Nim GC.
Hi! I'm trying to wrap ESP-IDF v5.1.2. It seems to only build successfully with the Espressif provided scripts, and parsing through Futhark throws many "header not found" errors.
import futhark, os
importc:
outputPath currentSourcePath.parentDir / "generated.nim"
path "."