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Visitor II
February 10, 2026
Question

My MCU CAN Communication is Not working After i generate the new STMCubeMX Code

  • February 10, 2026
  • 1 reply
  • 113 views

Hello ST Community, 

My MCU Part No. is STM32F103C8T6.
My MCU Firmware Package is STM32Cube FW_F1 V1.8.6 and This Package CAN Communication is Working Fine and When Ever i Change one GPIO Pin and Generate the Code then CAN is Not Working 
What is The Problem Behind it ? If Any body Idea About That ? 

Thanks In Advance .

1 reply

Andrew Neil
Super User
February 10, 2026

Welcome to the forum.

Please give some more details - see: How to write your question to maximize your chances to find a solution

In particular: what board are you using? What IDE? Your CAN setup?

What investigation/testing/debugging have you done to find what goes wrong after you make the change?

Perhaps attach before & after examples.

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.