[SDC2150] Help to understand commands to send

I\'m trying to control my SDC2150 2x20A controller via USB under Ubuntu; i can successfully send commands to the controller but i\'m not able to understand what kind of string command i have to send in order to let motors move forward and to reverse their rotation direction.

At the moment, in the sample program, i\'ve seen that there is this command:

However, when i use this, motors just move forward for few seconds and then stop.

Can you help me to understand what kind of commands i have to send, please?

Is there any documentation about the protocol to use?
I\'ve read the text file included in the libraries, but it wasn\'t very clear for me.

Thanks a lot!

This is because of the watchdog.

If no new command is received within 1000ms (factory default), the motors stop.

You can either change/disable the watchdog, or repeat your commands within the timeout delay

Thanks for your reply!

I\'d like to disable to watchdog, what i should do to do this?

It\'s an operating system feature, or i have to disable it directly on the controller firmware?

Can i use a while loop and always send the same command?