用EVC编写的windowce.net系统下的串口键盘驱动的例子CPU为PXA255.-prepared with the EVC system windowce.net serial keyboard for example CPU PXA255.

zlg7289A 串行接口LED 数码管及键盘管理器件的驱动-LED Display serial digital interface, and keyboard control management device driver

既昨天的430串口程序后又添加了几个程序模块。3*4的矩阵键盘扫描以及通过锁存器IO口复用来驱动数码管。功能是这样：先对按键进行消抖，然后判断键值通过数码管显示通过串口发送出去。-Both procedures after yesterday' s 430 serial port to add a few program modules. 3* 4 matrix keyboard scanning and recovery through the latch to drive the di