键盘与串口驱动设计，编写程序完成键盘驱动，实现键盘扫描，及键值的显示，及七段数码管的显示-The keyboard with the serial port driver design, write a program to complete the keyboard driver, realize the keyboard scan, and, according to the key value of and seven segment digital tube display

基于CH451的键盘扫描程序设计采用AVR单片机ATmega16进行读取CH451的接收到的按键值，CH451可以实现8*8矩阵键盘输入，且带有中断提醒，接收到的按键值在12864液晶上显示。程序中采用的是2*3矩阵。系统采用AVR Studio+WinAVR构成的AVR GCC编译环境。-CH451 based keyboard scanner design uses AVR microcontroller ATmega16 reads received the key value CH451