I have the chinese PDF file yes, so I know what it looks like.
I am going to try to do something very simple without button, just using keys for up/down etc etc, and using SDL to render the screen....
If it works we will be to see the trace in the command line window....
I have just compiled rk27xx.dll
I have to add my own functions for TR (trace)
Then I will try to start the system .....
I will let you know