RA8803的320*240的四级灰度液晶屏，自带字库，自己写的ARM CortexM3 lpc1768的驱动程序，程序注释比较详细，已经实际测试成功，实现的功能包括任意定位写字符串和画任意直线和任意大小的圆。-RA8803 320* 240 four-level grayscale LCD screen, comes with character, wrote ARM CortexM3 lpc1768 driver, a more detailed program notes, field-t