发现仅仅设置R03H是不能设置方向的,还需要设置R32H,R33H的坐标位置。比如我现在是R03H=0x1000H,R20H=239-x,R21H=319-y:竖直正向R03H=0x1030H,R20H=x,R21H=y:竖直反向R03H=0x1028H,R20H=239-y,R21H=x:横屏向右R03H=0x1018H,R20H=y,R21H=319-x:横屏向左