用51单片机c语言编写的键盘扫描程序

There are many different (and often confusing) terms associated with clock-based devices. This application note attempts to clarify these terms, and hence serves as a comprehensive reference on clock terminology. This application note can be divided into two sections. The first section describes and distinguishes between various clock sources available today. The second section defines and distinguishes between various parameters used to describe clocks. This section also provides methods of measuring some of these parameters.

单片机与嵌入式的经典应用推荐－－阻抗测量芯片AD5933.doc-Microcontroller and Embedded classic application of the recommendation- impedance measurement chip AD5933.doc

MCS-51系列单片机实例详解和案例代码，代码都是基于C语言-MCS-51 series single-chip Detailed examples and case code, the code are based on C language

KeilC51manual

用keil c编写的PID算法,不错噢.-with keil c prepared by the PID algorithm, Oh Yes. Ha ha

语音小车电路图 用凌阳单片机做的 语音小车电路图 用凌阳单片机做的

热电偶的冷端补偿和线性化.pdf 网上搜下来的，-Thermocouple cold junction compensation and linearization. Pdf

基于51单片机的公交车报站系统程序 基于51单片机的公交车报站系统程序-Based on 51 MCU bus stop announcement system program

16键盘程序，按任何一个键都可以返回相应的键值，可以下载，绝对好用！-16 keyboard procedures, any key that one can return to the corresponding keys, can be downloaded for absolutely everything!

基于PIC单片机的IC卡读写器的设计，以pic167c4单片机为核心的IC卡读写器的设计-PIC microcontroller-based IC card reader designed to pic167c4 microcontroller core of the IC card reader design