应用VC++6.0开发的，利用max7221与计算机并口驱动8位数码管的程序。-VC 6.0 application development, the use of parallel computer max7221 with eight digital drive control procedures.

该程序包括驱动程序和应用程序，使用DP-1581开发板，完成了八位数据在数码管的显示。-The program, including drivers and applications, the use of DP-1581 development board, completed the eight data in digital tube display.

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

7219级联显示16个数码管的驱动程序，与单片机通过串口通信。简单实用。-7219 Cascade 16 LED display drivers, and the microcontroller through the serial port communication. Simple and practical.