这个代码是用8989C51和12887开发的。

单片机课程设计 数字频率计 对于大家的课程设计很有帮助-SCM curriculum design, digital frequency meter for everyone" s helpful in course design

EZ-USB 2100系列单片机原理、编程及应用.PDF 北航出版社 编著者:颜荣江 余志强 张进 阴大兴 -EZ-USB 2100 Series Single-chip principle and application programming. PDF BUAA Press edited From:颜荣Jiang Yin Zhang Daxing余志强

U2270B，对U2270B芯片进行了详细介绍。-U2270B, on U2270B chip described in detail.

用C语言实现的1602液晶显示程序，程序已经调试好了-Using C language program of the 1602 liquid crystal display, the program has good debugging

一个基本的平安钟控制程序，帮别人写的，学习的人可以看看，不错的。-Ping

51单片机C语言编程实例，从基本的点亮发光二极管、蜂鸣器，到串口通信、LCD、最后详细介绍了51单片机在智能电动小车上的应用。-51 Microcontroller C programming examples, from basic light-emitting diode, buzzer, to the serial communications, LCD, lastly, a detailed description of the 51 SCM in the smart mini-car applications.

电动车里程表,安装在自行车上,能显示当前速度,显示总里程数,可以用来做别的,抛砖引玉-Electric vehicle odometer, installed on the bike, can display the current speed, showing the total mileage that can be used to do anything else, start

8路AD采集系统，数字电压表，采用ADC0809模数转换芯片，单片机控制的数字采集系统-8-channel AD acquisition systems, digital voltage meter, the ADC0809 analog-to-digital converter chip, single-chip microcomputer controlled data acquisition system

S3C44B0X 是常用的一款基于ARM7TDMI 内核的RISC 处理器，这是它的LCD公测程序-S3C44B0X is one of the commonly used kernel based on the ARM7TDMI RISC processor, This is its LCD Gongce procedures

单片机的动态显示程序设计-SCM dynamic display program design