Problem to get message from bus


I have developed code to manage the bus. I am using VMB1USB to connect my raspberry pi to the bus.

Today no problem to send message to the bus but I can’t receive any message from the bus. I did not see message passing on the bus or asynchronous response to my request.

Any idea about it?


The problem could be your code, the bus, the driver, the vmb1usb, the wiring, the raspberry pi or something else

You’re right.
The same code is running on other pc.
It seems that the SerialPortEvent gets the event but problem to read the stream it self. Could it be due to the speed, baudrate?

On Windows, the baud rate for the USB interface does not matter

FYI I had defined the baudrate to 9600.