Working with an ESP32-S3, specifically the Adafruit Qualia ESP32-S3 for RGB666 Displays. I'm working on an application where I needed to move some of the program code into a task on the other core (due to needed delay() calls). It's working mostly, but I have occasional hangs/crashes. The main ta…

Welcome! Sounds like you might be talking about an ESP32 - how about telling us for sure? While you're thinking about that, please read: [image] How to get the best out of this forum Programming Questions Welcome to the Arduino forum! A guide explaining how to get the …

Thanks. I read it, and expanded on my original question with the specific board, and some additional background on what I am trying to do. (sorry about that, you're right, I have been messing with this all last night and this morning, and was kind of rushing)

Speaking of the crashes, is there a way to get the cause, or a stack trace, or something when it does happen? What I am seeing is the Serial output just stops at a println call, and my PC opens the bootloader drive on my PC. I googled and people seem to indicate that Serial should print out a stackt…

A few points: Delays are never “needed”. Even if programming in the classic setup() / loop() Arduino paradigm, delays can be totally avoided through proper non-blocking code techniques. There’s no reason to use two cores for the functions you describe. They can be handled on a single core with…

Technically, yes, needed is a strong word, and there are ways to work around it, but it makes the overall code (which is already going to be large and very complex) much harder to follow and trace through. Most times I opt for readability and easier understanding of the code instead of just doing co…

[image] bbroerman: setting shared variables Without debugging the code this is more a general discussion about what may be going wrong. Reading your post I thought about the following: Did you reserve enough stack for your tasks? You can check stack usage high water marks by calling uxTask…

[image] bbroerman: If you want the full code, I can send you a link to the Github repo. Maybe you missed this part when viewing "How to get the best out of this forum" [image] How to get the best out of this forum Please supply your complete code in code tags <CODE/>

Sure, please post the link, I'd like to see what you are doing. But honestly, I'm not particularly keen on debugging other programmers' code. And multitasking bugs are particularly difficult to find.

Question about multiple concurrent tasks using Serial, and Wire

Projects Programming

camsysca December 7, 2024, 4:58pm 2

Welcome!
Sounds like you might be talking about an ESP32 - how about telling us for sure? While you're thinking about that, please read:

which I have to assume you blew past in haste in order to post your question.

Topic		Replies	Views
Looking for pointers (ESP32 S3 intermittent crash) 3rd Party Boards	19	321	May 26, 2025
ESP32 RTOS tasks Deutsch	16	1409	July 23, 2022
ESP32 FreeRTOS single core tasks seemingly running at the same time Programming	20	1049	June 20, 2024
Debug exception reason: Stack canary watchpoint triggered (uart_event_task) Programming	17	198	July 11, 2026
Why is multi-tasking on ESP32 dual-cores not faster than single-tasking on one core? Networking, Protocols, and Devices	52	1760	November 10, 2024

Question about multiple concurrent tasks using Serial, and Wire

Related topics