基于单片机与ch451的键盘扫描与显示程序-Based on SCM and ch451 keyboard scanning and display program

00－59秒计时器（利用软件延时)带有生产的二进制文件。在Proteus和keil下联合调试通过。-00-59 seconds timer (using software delay) with the production of binary files. In the Proteus and keil adopted under the joint debugging.

4×4矩阵式键盘识别技术,在proteus和keil环境下运用汇编和C语言程序编写的，有生产的目标文件。-4 × 4 matrix keyboard recognition technology, the environment, the use of proteus and keil compile and C language programming, there are production of the target file.