I'm trying to rotate and scale down a picture with the HEO Layer of the LCD controller. I have successfully rotate unscaled pictures and I have successfully scaled down an unrotated picture. But if I try to scale and rotate a picture at the same time it doesn't work (I always get overflow interrupts). In datasheet it not explicitly said that it is (im-)possible. Does someone know if it is and if so could give me a little hint what to consider?