used to achieve the 4046 10m below the signal phase

8９Ｓ51的程序，实现秒表功能秒表C51程序，包含键盘扫描，在数码管上显示各个数字，使用80C51单片机 -89S51 procedures to achieve stopwatch function stopwatch C51 procedures, keyboard scanning, digital control in the various figures show that the use of 80C51 microcontroller

单片机键盘阵列扫描源程序解析，让你更好的理解按键扫描的原理-Single-chip arrays to scan the source code to resolve the keyboard, allows you to better understand the key principle of scanning

本方案适用于研究生、本科、大专、职业技术学院的嵌入式系统（单片机/ARM7） 应用、信息通信、应用电子、机电一体化、微机应用、数控技术、自动化控制、计 算机原理与应用、仪表及控制、汽车工程等与“电子/微机/总线”有紧密联系的相关 专业。-The program applies to postgraduate, undergraduate and post-secondary schools, vocational and technical colleges Embedded System (SCM/ARM7) applications, information communications, electronic, electromechanical integration, application of computer, NC technology, automatic control, computer science and application, Instrumentation and Control , automotive engineering, and "electronic/computer/bus" is closely linked to the relevant professional.

摩托车的步进电机驱动。用的是LPC900系列单片机的RTC定时器，虽然简单，但足以说明问题。-motorcycle stepper motor driver. The LPC900 Series is the RTC timer, although simple, but enough to illustrate the problem.

16乘2的液晶显示屏演示程序，对于研究液晶屏很有帮助

液晶显示模块手册中文详细说明，解决英文难懂的问题

it can be used to learn programing for 51

ds12c87读写程序，经过测试是可以用的。-ds12c87 literacy procedures, the test can be used.

8816发烧级芯片,请大家放心下载 -8816 fever-on-chip, please rest assured that everyone download