So guys I'm adding FreeRTOS to my device, but I'm stuck on task priorities. Even though I've checked

So guys I'm adding FreeRTOS to my device, but I'm stuck on task priorities. Even though I've checked everything I could check, higher-priority tasks aren't interrupting lower ones , preempting as it's called. Any ideas on what might be causing this?

SShrushti I tried installing Jenkins on my Raspberry Pi but ran into some errors. Running ...

techielew•4/2/24, 1:10 AM

I've never heard of anyone trying something like this. As I'm sure you're aware, Jenkins is primarily a build/test/release automation tool. So, not sure if I know of any example use cases. Might check out Dojo 5 blog: https://dojofive.com/blog.

MMarvee Amasi So guys I'm adding FreeRTOS to my device, but I'm stuck on task priorities. Even...

techielew•4/2/24, 1:13 AM

Sounds like you might be dealing with a priority inversion, which can happen when the lower priority tasks continues because of a mutex or semaphore

MMarvee Amasi So guys I'm adding FreeRTOS to my device, but I'm stuck on task priorities. Even...

techielew•4/2/24, 1:14 AM

Check out Shawn's blog on Digi-Key: https://www.digikey.com/en/maker/projects/introduction-to-rtos-solution-to-part-11-priority-inversion/abf4b8f7cd4a4c70bece35678d178321

DigiKey

Introduction to RTOS - Solution to Part 11 (Priority Inversion)

Priority inversion occurs when a high priority task yields to a low priority task because the low priority task holds a lock, such as a mutex or semaphore, needed by the high priority task.

techielew•4/2/24, 1:16 AM

techielew•4/2/24, 1:17 AM

techielew•4/2/24, 1:18 AM

This happens to @Guillotine all the time on my mother's rtos

shaunak•4/2/24, 2:30 AM

I was working with #ArduinoMega and here I am with a new blog !

In this blog, I am carrying forward my previous work on the Modbus RTU Function Subset Implementation based on a Generic Library. I had tested this library on Cypress PSoC5 and TI Stellaris Launchpad Kit. This time I have tested it with Arduino Mega and Uno.

Link to the blog :
https://www.embverse.com/blogs/generic-library-for-microcontroller-as-modbus-rtu-slave

EmbVerse - Generic Library for Microcontroller as Modbus RTU Slave

Date : March 30, 2024
Hey, this is Shaunak !
In this blog, I am carrying forward my previous work on the Modbus RTU Function Subset Implementation based on a Generic Library. I had tested this library on Cypress PSoC5 and TI Stellaris Launchpad Kit. This time I have tested it with Arduino Mega and

Saßì•4/2/24, 2:43 AM

@as-WIN-th @MizuHex @Kartikeya Welcome to the community! We're eager to learn more about you. Can you introduce yourself and tell us about your professional life?

Donald Will•4/2/24, 2:48 AM

Hi guys I facing this issue with my esp32-s3 timer isr i am using platformio esp-idf any clue to solve this warning?

Sshaunak I was working with #ArduinoMega and here I am with a new blog ! In this blog, I...

techielew•4/2/24, 2:57 AM

Hey @shaunak this is amazing. Is the repo private? Can we fork it to the DH repo?

Sshaunak I was working with #ArduinoMega and here I am with a new blog ! In this blog, I...

Navadeep•4/2/24, 4:40 AM

great detials, @shaunak !

DDonald Will Hi guys I facing this issue with my esp32-s3 timer isr i am using platformio esp...

techielew•4/2/24, 4:41 AM

@Umesh Lokhande @MCU, MPU & Firmware gang? Any help for @kingrom?

DDonald Will Hi guys I facing this issue with my esp32-s3 timer isr i am using platformio esp...

AJAY KUMAR V•4/2/24, 4:57 AM

Declaration (src/Test_timer.c:32:23): This is where the function is first introduced before its actual definition. Make sure the section attribute here matches the one you intend to use.
Definition (src/Test_timer.c:51:1): This is where the function's code is actually written. The section attribute here must match the one in the declaration.
Choose which section you actually want to use (.iram1.0 or .iram1.1), and then make sure both the declaration and definition of timer_callback use that same section. Hope this will resolve the warning.
@Umesh Lokhande @MCU, MPU & Firmware seniors Please give feedback about the answer

AAJAY KUMAR V Declaration (src/Test_timer.c:32:23): This is where the function is first introd...

Donald Will•4/2/24, 5:46 AM

what is (.iram1.0 or .iram1.1) ?

DDonald Will what is (.iram1.0 or .iram1.1) ?

Umesh Lokhande•4/2/24, 6:56 AM

This represents memory regions inside the internal RAM (IRAM) of ESP32. I don't use PlatformIO but usually because of the deprecated timer.htimer.h build failed. In your case, it seems like IDE couldn't locate the relevant libraries. Please try this example code to test and also follow instructions from the readme filereadme file https://github.com/espressif/esp-idf/blob/master/examples/system/esp_timer/main/esp_timer_example_main.c

AAJAY KUMAR V Declaration (src/Test_timer.c:32:23): This is where the function is first introd...

Donald Will•4/2/24, 10:11 AM

thank you

UUmesh Lokhande This represents memory regions inside the internal RAM (IRAM) of ESP32. I don't ...

Donald Will•4/2/24, 10:11 AM

thank you :goodjob:

Saßì•4/2/24, 12:28 PM

@SultanXY @Davcodin Welcome to the community! We're eager to learn more about you. Can you introduce yourself and tell us about your professional life?

TIETIBIEKA Moussine•4/2/24, 1:02 PM

hi , i'm student in Electrical and Electronic Engineering ; i appreciate that for given me the opportunity to be with you

Fiqih Prawida•4/2/24, 1:15 PM

Camila_99$$•4/2/24, 1:32 PM

Hello everyone, I have some concerns bothering me.I would like to know how one can estimate the lifespan of a microcontroller (for example AVR).
And can microcontrollers work 24/7 ??

CCamila_99$$Hello everyone, I have some concerns bothering me.I would like to know how one c...

aymen ammari•4/2/24, 1:47 PM

Microcontroller lifespan estimation depends on operational and environmental conditions. Properly designed microcontrollers can work 24/7 with adequate power management and cooling.

Aaymen ammari Microcontroller lifespan estimation depends on operational and environmental con...

Camila_99$$•4/2/24, 2:22 PM

Hum actually I want to use the AVR for a project that will run for several days maybe. I would like to know if the AVR will be able to handle it.

aymen ammari•4/2/24, 2:31 PM

Most avr can work 24/7, the most important thing is to keep cooling and low humidity and away from Dust t, these are the ennemis of electronics

Aaymen ammari Most avr can work 24/7, the most important thing is to keep cooling and low humi...

Camila_99$$•4/2/24, 2:34 PM

Haha yeah

Saßì•4/2/24, 3:26 PM

@TIETIBIEKA Moussine@Fiqih Prawida @ryanc3282002 Hi, welcome to the community! We'd love to hear more about you. Could you introduce yourself and share your profession with us?

TTIETIBIEKA Moussine hi , i'm student in Electrical and Electronic Engineering ; i appreciate that fo...

techielew•4/2/24, 3:48 PM

Welcome!

wafa_ath•4/2/24, 4:30 PM

Hi, guys am curious about what AI u use mostly to solve your problems …
A- CHATGPT
B- CLAUDE
C- GEMINI
D- Other ( mention it)

Wwafa_ath Hi, guys am curious about what AI u use mostly to solve your problems … A- CH...

aymen ammari•4/2/24, 4:31 PM

I use CHATGPT most of the time, but with some photo related subjects and academic research I use COPILOT

Ttechielew Welcome!

TIETIBIEKA Moussine•4/2/24, 4:33 PM

thank sir

JeremyCook•4/2/24, 4:33 PM

Hello, I'm working on an article about why you should consider .8mm PCBs over 1.6mm PCBs (mostly in the context of 2-layer boards). Anything I should mention?

I'm not advocating that in all cases over 1.6mm thickness, but seems like something that beginners especially wouldn't even consider I think the most obvious factors are weight, volume, and cost, but I know captive issues come into play as well. Any insight/references on capacitance that I should look at?

Also I saw some mention of how it affects solder joint fatigue, would welcome your thoughts on that too!

JeremyCook•4/2/24, 7:15 PM

Actually, one thing I'd looked at a while ago is the RP2040 design guide https://datasheets.raspberrypi.com/rp2040/hardware-design-with-rp2040.pdf, section 2.4.1, where it talks about the differential impedance for the USB spec and having a ground plane nearby. Not certain if the distance to the ground plane actually affects characteristic impedance, or if that is a separate solution for minimizing crosstalk. Thoughts?

techielew•4/2/24, 9:45 PM

Hi @everyone!
Looking forward to seeing you at this week's Office Hours Meetup! @barafael will be sharing his experience as a Rust programmer, @wafa_athmani will talk about micropython, while other devs touch on their language of choice.

See you on Friday at 15:00 GMT: https://discord.gg/HQKgbpGQ?event=1224832746271150194

kristof-at-embeetle•4/3/24, 4:06 AM

Hi,
I'm trying to let Google Gemini access a codefile that is too large for ChatGPT4. Gemini has a larger context size compared to GPT4. However, I can't upload a text/code file to Gemini. I try to give it links to a publicly available text file so it can read it from there. I tried the following:

a link to a text file on our own server
a link to a text file on a public Github repo
a link to a (publicly available) text file on my Google Drive

But Google Gemini fails to read any of them. It always says that it can't access the file.

Has anyone here achieved to get Google Gemini analyze a text file?

PS: the text file (code file) is too large to copy-paste into the prompt.

Petr Dvořák•4/3/24, 4:38 AM

Hello, can you upload multiple files at the same time?

Saßì•4/3/24, 5:00 AM

@Chrissy Hello and welcome! We're curious to learn more about you. Can you introduce yourself and tell us about your profession?

techielew•4/3/24, 5:04 AM

Calling all @PCB & Analog engineers: Don't miss the premiere of our next Ask a Developer Demo with @ShreeshaN on April 3rd at 15:00 GMT (in 10 hours). He walks through selecting an LDO with LTSpice, comparing an Analog Devices voltage regulator and Linear Technologies voltage regulator in a theoretical battery application.

A great place to start if you're just getting your hands dirty in electrical design.

Find a link to the premiere here: https://discord.gg/devheads?event=1224945973625884764
Chat in the discussion thread: 🟩-pcb-and-analogAsk a Developer Demo: How to Select an LDO Using LTSpice

PPetr Dvořák Hello, can you upload multiple files at the same time?

kristof-at-embeetle•4/3/24, 5:38 AM

I can't even upload a single file to Google Gemini. Let alone multiple at once.

techielew•4/3/24, 6:53 AM

@onky I know you had been asking about the Office Hours recordings a while back. We've got a bunch of them now available here: https://www.youtube.com/watch?v=MadlOBr-K1w&list=PL2mKSkagAaJjiMdJ3MqRqUEDGi_Y79Cpe

We're playing catchup so the first episode from February is currently uploading but we'll get current over the next couple weeks. Thought you'd want to know.

YouTubeDevHeads

DevHeads Weekly Office Hours, December 11, 2023: The Role of the Io...

As a successful IoT professional, you not only have to be an experienced technologist. You also need a decent amount of domain expertise, business savvy, and preferably all three.

In the 12/11 Office Hours Meetup:

@InsightMike and @Umesh Lokhande related experience that the "IoT professional" in a company is usually a strong product manager....

Saßì•4/3/24, 7:13 AM

@Massaquoi Hey, welcome! We're excited to get to know you. Can you introduce yourself and share a bit about your professional background?

Kamaruu•4/3/24, 7:45 AM

hello guys, is there someone here who can help in relay ladder diagrams? I really need help

KKamaruu hello guys, is there someone here who can help in relay ladder diagrams? I reall...

Donald Will•4/3/24, 8:57 AM

plc programming ?

Kamaruu•4/3/24, 8:58 AM

Nop loke ladder diagram

Kamaruu•4/3/24, 8:58 AM

Like*

Kamaruu•4/3/24, 8:59 AM

Logic relay operations

Donald Will•4/3/24, 9:02 AM

any example ?

Kamaruu•4/3/24, 9:07 AM

Ill send

Kamaruu•4/3/24, 9:08 AM

Kamaruu•4/3/24, 9:08 AM

like this

Kamaruu•4/3/24, 9:09 AM

im trying to follow the parameters:

if S1 is pressed while S2 is off, Lamp 1 activates and latches

if S1 is pressed again but with S2 pressed, Lamp 1 turns off

So guys I'm adding FreeRTOS to my device, but I'm stuck on task priorities. Even though I've checked

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