Hello folks,
I am following this tutorial with an STM32F405 + TJA1050 on one end of a CAN bus and a USB CAN module on the other end.
I wanted to test reducing the bardrate from 250,000 in the tutorial to 125,000. I also changed the USB CAN module to match. Unfortunately, I start seeing CAN bus errors when I do this. I can probably leave it at 250k, but I am curious why I am struggling to adjust it? Anyone have a clue? Is this related to clock frequency on the microcontroller? Changing to 500k works, but not 125k.
Thanks,
Karl
Trouble with reducing canio baudrate stm32
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- NewUserDave
- Posts: 8
- Joined: Thu May 11, 2023 7:07 pm
Re: Trouble with reducing canio baudrate stm32
Hi .. any advice you might have on getting one of these devices connected using canio? Any good example programs you might share perchance? I'll try an chip in when I get to baudrate questions, but if any assist would be grateful.
- KarlParks
- Posts: 3
- Joined: Sat Feb 23, 2019 4:35 am
Re: Trouble with reducing canio baudrate stm32
> any advice you might have on getting one of these devices connected using canio?
Sure. I have been following this tutorial: https://learn.adafruit.com/using-canio- ... n/overview Buy 2 STM32F405 from Adafruit. Then buy a set of 5 TJA1050 transceivers off of amazon. You'll also need the breadboards and jumper cables to hook everything up.
Sure. I have been following this tutorial: https://learn.adafruit.com/using-canio- ... n/overview Buy 2 STM32F405 from Adafruit. Then buy a set of 5 TJA1050 transceivers off of amazon. You'll also need the breadboards and jumper cables to hook everything up.
Please be positive and constructive with your questions and comments.