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Can bus problem

Question asked by Amir Amir on Jun 10, 2018
Latest reply on Jun 12, 2018 by Amir Amir

Hello  everyone

I am using stm32f429 discovery board. I run CAN hal_lib example( networking ) and monitored tx pin on oscilloscope and got bellow signal( it is attached)

I know the can frame, but the signal that is captured is not like a can frame. Where is the problem?

note: I didn't connect tx to a can channel, I only want to see can frame.