CAN id incorrect

[PRODNAV]

I have a STM32G474 mcu that i am learning to program. I have the CANBUS tx on PA12 working by loopback mode. I have connected my logic analyzer and i receive the data correctly.

There is only one thing wrong: The ID has bit1 that keeps being set to 1. So if i would give the adress

0x200 (0b0010 0000 0000) it outputs 0b0110 0000 0000)

0x100 (0b0001 0000 0000) it outputs 0b0101 0000 0000)

 

Anyone with idea's how this is possible?

Thanks!

[mƎALLEm]

Hello @PRODNAV and welcome to the community,

No sure I understood the case.

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@PRODNAV wrote:

There is only one thing wrong: The ID has bit1 that keeps being set to 1. So if i would give the adress

0x200 (0b0010 0000 0000) it outputs 0b0110 0000 0000)

0x100 (0b0001 0000 0000) it outputs 0b0101 0000 0000)

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How did you test this behavior? Could you please elaborate? maybe share screenshots?

Thank you.

[PRODNAV]

As you can see, Bit 1 is high for the ID. But i have programmed 0x180 for the 11bit ID, but somehow it sets the Bit1 high

[mƎALLEm]

Hello,

Do you have a communication issue? are you receiving bad ID messages in loopback mode?