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Stm32F4 CANbus Acknowledgment error problem

Sergen
Associate III

Hello everyone. The last time I opened a form related to bit timing, I realized that the problem was in the Canbus transceiver. I added 1-2 revisions and replaced it with the MCP2551 transceiver. Even though there is a device on the other side, I get an acknowledgment error and the logic analyzer is as follows.

12 REPLIES 12
Sergen
Associate III

I did but let me do it again

thanks

Sergen
Associate III

Solution: First, I changed the CAN2 mode to loopback and tried to receive data, but I could not receive it. Then I edited the time segment 1 and 2 values ​​and after receiving the data in loopback mode, I tried normal mode and my system worked.