DevHeads IoT Integration Server•14mo ago

@accur4te we have the event now and lots of space to help with CVs

ZZacckOsiemo @accur4te we have the event now and lots of space to help with CVs

Accur4te•11/8/24, 3:10 PM

yeah mate , i am in the audience . Looking forward to a great session .

Nnour_oud @here 20 minutes until our event: ** Looking for Work? How to Beat an Applicant ...

nour_oud•11/8/24, 4:50 PM

*Thank you for your participation! *

If you're on the job hunt, be sure to explore exciting opportunities in our Jobs section here: jobs

Also, don’t miss this week's Engineering Hour session: AI with FreeRTOS.
https://discord.gg/FePxxTwt?event=1270584392628043787

Ssegfaultdev.elf the error mostprobably some ISR thing

Techist•11/8/24, 7:25 PM

Are you using any interrupt service routine for any other peripheral in your project? Say UART?

TTechist Are you using any interrupt service routine for any other peripheral in your pro...

segfaultdev.elf•11/8/24, 7:26 PM

Now it is working fine and I am using uart for debugging

Ssegfaultdev.elf Now it is working fine and I am using uart for debugging

Techist•11/8/24, 7:27 PM

Ok, mind to share how you fixed it?

TTechist Ok, mind to share how you fixed it?

segfaultdev.elf•11/8/24, 7:27 PM

the issue was how I treated FreeRTOS

segfaultdev.elf•11/8/24, 7:27 PM

i added rtos as a library to my project

segfaultdev.elf•11/8/24, 7:28 PM

for that reason when compiling ISRs weren’t linked perfectly

segfaultdev.elf•11/8/24, 7:29 PM

since ISR’s are weekly declared so if my linker found them first their symbols are resolved and it won’t look for strongly implemented ISR’s which were implemented by FreeRTOS

segfaultdev.elf•11/8/24, 7:30 PM

for that I added FreeRTOS as a source to my code

Techist•11/8/24, 7:30 PM

Ohhhhh, that makes much sense.

segfaultdev.elf•11/8/24, 7:30 PM

and everything working just fine

Techist•11/8/24, 7:31 PM

You could use Cubemx next time to avoid such problem.

TTechist You could use Cubemx next time to avoid such problem.

segfaultdev.elf•11/8/24, 7:31 PM

To be honest I am more comfortable in this way

segfaultdev.elf•11/8/24, 7:31 PM

Every time I face some issues like this

segfaultdev.elf•11/8/24, 7:31 PM

it teaches me a lot

Techist•11/8/24, 7:32 PM

It's fine, then.

That's how I learnt FreeRTOS my self.

Ssegfaultdev.elf since ISR’s are weekly declared so if my linker found them first their symbols a...

segfaultdev.elf•11/8/24, 7:32 PM

For example I learned this because of the issue

Techist•11/8/24, 7:32 PM

I only suggested using cubemx because it's more easier to use.

And it does all configurations underhood for you.

TTechist I only suggested using cubemx because it's more easier to use. And it does all ...

segfaultdev.elf•11/8/24, 7:33 PM

I know that maybe for rapid development I will use it but i am still learning

segfaultdev.elf•11/8/24, 7:33 PM

so for now I will give it a try

segfaultdev.elf•11/8/24, 7:34 PM

https://github.com/undefined2001/FreeRTOS-BlackPill.git

GitHub

GitHub - undefined2001/FreeRTOS-BlackPill: This repository contains...

This repository contains the necessary code to operate a STM32F411CEU6 - undefined2001/FreeRTOS-BlackPill

segfaultdev.elf•11/8/24, 7:34 PM

in case if you want to share some of your words in this

Ssegfaultdev.elf I know that maybe for rapid development I will use it but i am still learning

Techist•11/8/24, 7:34 PM

Perfect.

Been awhile I worked on freeRTOS though.

TTechist Perfect. Been awhile I worked on freeRTOS though.

segfaultdev.elf•11/8/24, 7:38 PM

even though it doesn’t make much sense but I love to write my own driver

Ssegfaultdev.elf https://github.com/undefined2001/FreeRTOS-BlackPill.git

Techist•11/8/24, 7:38 PM

I see you are using uart for logging purpose right?

Where are you calling the uart write function?

_io_puts private function?

segfaultdev.elf•11/8/24, 7:39 PM

you can check debug.c

segfaultdev.elf•11/8/24, 7:39 PM

for better information

segfaultdev.elf•11/8/24, 7:40 PM

_io_puts is called by a system call which is _write that is kinda overhead to what i exactly need

segfaultdev.elf•11/8/24, 7:40 PM

so I just wrote my printk to do the job

Ssegfaultdev.elf even though it doesn’t make much sense but I love to write my own driver

Techist•11/8/24, 7:41 PM

Yeah, I get you.

That's fine.

You should define your mask values and bit positions as macros too.

You'd have a hard time understanding that code in months to come.

TTechist Yeah, I get you. That's fine. You should define your mask values and bit posit...

segfaultdev.elf•11/8/24, 7:41 PM

in which file?

segfaultdev.elf•11/8/24, 7:42 PM

in main.c those configurations I did it was for rapid testing

segfaultdev.elf•11/8/24, 7:42 PM

I usually use CMSIS so those are already defined

Ssegfaultdev.elf _io_puts is called by a system call which is _write that is kinda overhead to wh...

Techist•11/8/24, 7:43 PM

Placing your uart write in io_puts should be able to achieve the same result.

I think so.

TTechist Placing your uart write in io_puts should be able to achieve the same result. ...

segfaultdev.elf•11/8/24, 7:43 PM

yeah no doubt about it

Ssegfaultdev.elf I usually use CMSIS so those are already defined

Techist•11/8/24, 7:43 PM

Ooh, makes much sense.

Yeah, I saw you your cmsis lib.

Techist•11/8/24, 7:43 PM

Kudos

segfaultdev.elf•11/8/24, 7:44 PM

but printf is invoking some system call which is more resource hungry so I get the functionality I need but a bit less cost

segfaultdev.elf•11/8/24, 7:45 PM

in the past I used to call my uart_send_char inside _io_putchar

segfaultdev.elf•11/8/24, 7:46 PM

also printf might use a larger buffer to store data i only made my buffer for 100 characters

segfaultdev.elf•11/8/24, 7:46 PM

which is more than enough to logging data

Techist•11/8/24, 7:48 PM

Well, the printk implementation is fine anyways.

It's justiable if you are using it for learning purpose.

segfaultdev.elf•11/8/24, 7:48 PM

also i thought it would better rather than sending character by character in each _io_putchar call

segfaultdev.elf•11/8/24, 7:49 PM

I am sending it as a buffer

segfaultdev.elf•11/8/24, 7:49 PM

:excusemewhat:

Ssegfaultdev.elf I am sending it as a buffer

Techist•11/8/24, 7:50 PM

Your uart driver still sends it per character, lol.

TTechist Your uart driver still sends it per character, lol.

segfaultdev.elf•11/8/24, 7:50 PM

yeah but in a single function call

Techist•11/8/24, 7:50 PM

So it doesn't make much difference, lol

@accur4te we have the event now and lots of space to help with CVs

Similar Threads

Similar Threads

Similar Threads