st7529 在ucgui 的驱动程序,我是用16灰度的例子修改而成的,而在实际应用中只用到了5个灰度,故在用前景色画图时,
我是把0~15的索引值转换为我要用到的5个灰度.,st7529 in ucgui driver, I am using the 16 gray-scale examples of modifications made, and in practical applications only use a 5 gray, so the use of Foreground drawing, I was in the 0 to 15 index values I want to convert the five gray.