Hi Wildcat,
I’m not aware of the priority in the menu, at a first look I would simply say long press btn1 to enter and long press btn4 to leave the “fast control” mode.
Definitely skipping vertical lines isn’t always a good thing, it could be another modality selectable in the ch4 menu.
I guess the simplest way is to skip to draw any dot which has less than N pixels increment in the x axis than the previous
or more than N pixels increment in the y axis according to scanning direction.
You’re right, now I remember the same thing, a drop to 0 or 4095 when passing from the end to the begin of the output wave buffer, this evening I’ll take a look at my pawn code to see how I managed this.
Ciao