- Joined Aug 24, 2022
Hi, I am trying to log can-bus data between a joystick and its command receiver. But I keep getting error frames from my logger. I checked the signal using an oscilloscope and found the signal was weird. When the bus is silent, the voltage is around 2.5V, which is correct. But when the command was sent, the can_H and can_L signals became between 3.8v to 0v. I think that's why my can-bus logger can't decode the signal. But the joystick receiver can receive the command correctly. There are only two nodes on this bus one is the joystick, and one is the joystick command receiver. I check the resistance, and it is 60 ohm. Does anyone know what can cause this problem? I attached one picture here.