Setup for CAN communication with NUCLEO-H7A3ZI-Q and NUCLEO-F429ZI

[Anusree_k]

Hello

I looking to do Classic CAN communication (Not FD) Between NUCLEO-H7A3ZI-Q and  NUCLEO-F429ZI  in normal mode. I am using MCP2551 transceiver on both boards. I added termination resistors on both side  But i didn't Receive the message.

My configurations are:

In NUCLEO-H7A3ZI-Q :

In NUCLEO-F429ZI :

Can you please check if there are any configuration issues? 

 

[mƎALLEm]

Hello,

BS1=2, BS2 = 2 values are not good mainly for H7.

You need to in crease them at maximum with BS1 =~75% (BS1+BS2).

So decrease the CAN prescalers too.

Also what is the source clock of your system? If you are using HSI as system source of clock, I recommend you to used HSE instead with an external Crystal.

[Dragonmonkey]

Hi,

I want to jump in here to find solution for my error

Fatal error stm32h7xx_hal_can.h: No such file or directory

 

How can I download and install it?

Appreciate any help

[mƎALLEm]

Hello @Dragonmonkey 

I suggest you to open a new thread for your issue as it's different.