CAN communication between NXP and STM

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CAN communication between NXP and STM

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r_1280
Contributor II

Hello,

I am currently working on a project which involves a CAN bus between a MPC5744P and STM32F777 on respectively 54MHz and 80MHz. In this case, the MPC5744P is the only device that sends messages. On the oscilloscope I can see the MPC5744P trying to send a message with auto retransmission on, I think. 

My first thought after seeing the oscilloscope is that the bit timing is off, but according to the calculator it should be fine for 1Mb/s and 75%. Can anyone help me fix this issue?

Attached are the source files of the NXP chip and both CAN bit timings.

Here is a short video of the oscilloscope: https://files.fm/u/hedjt2rc8 

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