I will implement the sweep mode this afternoon and let you know the results. as the T6963C only accepts 1 byte at a time(8 pixels wide) I will try to make curser 3 bits wide and the space 5 bits wide, and take 8 samples to display together, this way it makes writing to the display 8 times faster.
I also have to think of a way to draw the scope squares on the display, I think thes should be done easily because they are constant all the time, solid outside border with dotted inside squares, will also make them multiple of 8 pixels for speed.
Michael you are a real treasure for this forum, very big thank you for your great ideas.
Mahmood