通过串行方式对ST7920写入状态字来控制12864显示汉字，图片等内容,ST7920 serial manner to control the characters written into the state showed 12,864 Chinese characters, images, etc.

12864液晶的中文资料，老是说功能说明太少，读不知道写啥了-12864 LCD of Chinese data, saying that too few functional descr iption, reading does not know to write train of