CAN failed to reinit after deinit for STM32F105

[supgz]

Can failed to reinit after deinit.

1. Two cans was used for my projects which was generated by stm32cubemx

2. after run for a short while , I turn off both cans by HAL_CAN_DeInit

3. then I reinit both cans by MX_canx_init and found it failed in HAL_CAN_Init

4. I have tried to pull both can rx and tx pins but does not work

5. Before reinit I have checked both rx and tx pins is high

Questions:

1. Possible reason for can reinit failed.

2. Any checlist for reinit?

Thank you & BR

[SofLit]

Hello,

See this thread: https://community.st.com/t5/stm32-mcus-products/can-initializing-issue/m-p/689766

[supgz]

Hi SofLit:

    Thanks for your reply.

    I have measured Can_rx pin is high during reinit which means recessive bits.

    reinit still failed.

    is there any other reason for reinit fail?

[SofLit]

As stated in the thread I gave, did you implement this requirement?:

[supgz]

Hi SofLit:

   Thanks for your reply.

   I have found the reason is that I deinit the same can twice which cause the reinit failure.

  After modify code the can reinit successfuly.