Unresponsive without error logs

[pebri86]

Hi, I just built a custom device using an ESP32-S3 DevKitC N16R8 and a 2.4-inch TFT module with resistive touch and an SD card operating in SDMMC mode. I created a new device port, and while everything initially works flawlessly, the device occasionally becomes randomly unresponsive. There are no logs appearing in the IDF Monitor when this happens. Is there anything specific I should check to resolve this, or has anyone else experienced similar issues?

[KenVanHoeylandt]

It's possibly an issue with a mutex.
If your SD card and display are on the same SPI bus, make sure to pass the LVGL lock to the SD card config.

[KenVanHoeylandt]

FYI/offtopic: I recently introduced a new driver subsystem and I just pushed some basic documentation for it:
https://docs.tactilityproject.org/#/device-development/drivers

I'll probably keep the old driver subsystem for the remainder of 2026 as it will take me a long time to refactor all driver subprojects.

[pebri86]

Ah, I think I see the problem. The display and SD card use different interfaces, but the display and touch controller are on the same SPI. I'll have to double-check the XPT2046 driver implementation. Thanks, you’ve been a big help!

[KenVanHoeylandt]

You're welcome!