Question about CAN boot mode protocol for MPC5643L micro-controller

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Question about CAN boot mode protocol for MPC5643L micro-controller

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qianwang
Contributor I

Hello,

I am trying to understand how codes in .mot file convert to CAN message based on trace file generated by MPC5634L micro-controller. I followed the protocol summarized in the table blow, but I still have some questions listed below.

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1. From the trace file generated by MPC5634L, I couldn’t find original codes in .mot file that correspond to the following CAN message. What does this BTL process correspond to?

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2. There are some random CAN message generated from .mot file that doesn’t correspond to any part of the codes in .mot file. For example: after line 42 (which is shorter than the other lines), random CAN messages (line 3280 – 3284) are in the trace file. I couldn’t find codes in .mot file that are response for these random CAN message. What do they come from?

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3. How is the address in .mot file converted to CAN message? For example: where does the address 22 03 and 22 0B (red box) in CAN messages come from? Which part in .mot file is response for defining the address in CAN message?

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