一个IIC总线的代码，一个VGA显示文字代码，目前VGA可以显示彩条，但是现实文字较少，一个本科学生兰编写，还不错，共享下，大家参考，IIC编写的比较经典，可以 学习怎么写一个处理器的外设控制器。-IIC bus is a code, a VGA display text code, the current color VGA displays, but less realistic characters, a lan to prepare undergraduate students, but also good to share, the U.S. reference, IIC comparison prepared classics, can learn how to write a processor peripheral controller.