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

在dos下写的汇编程序。通过串口控制实验板上的矩阵键盘进行操作，模拟跳舞机，并由LED数码管显示。-When the program starts, the LED digital display the word "HELLO" waiting for players to press any key to start dancing. After the start of the game, alternating the left of the two digital tube displ

通过4X4矩阵键盘和数码管设置频率，按下确认按键后在AD9850输出相应的频率-keyboard scan