51 SCM

一个数据库引擎,可以创建和读写DBF格式的数据库文件-A database engine, you can create and read and write DBF database file format

美国TI公司的protel 元器件库，在应用中需要更新，本人收集了最新的版本共30M，为提高上传速度分六次上传。文件名依次为TI_1到TI_6。希望大家设计电路板时少走弯路。由于在上传时找不到分类，所以归结为书籍一类-TI" s U.S. Treasury protel components, need to be updated in the application, I collected a total of up-to-date version of 30M, to improve the upload speed upload six hours. File name followed by TI_1 to TI_6. Hope that the design of circuit board less detours. From when can not find in the classification, it comes down to a class of books

在C8051F930单片机上，利用端口匹配和PCA实现按键的长按、短按功能。-In the C8051F930 microcontroller, using the port matching and PCA to achieve a long button press, short press functions.

系统以AT89S51单片机为核心，利用单片机可根据实际的需要随时更改程序而实现功能的改变。包含程序和课程设计文章-AT89S51 microcontroller system to the core, the use of single-chip microcomputer according to actual need to change procedures and the achievement of functional change. Contains the procedures and curriculum design articles

arm嵌入式系统lpc22**看门狗溢出产生中断源代码-arm embedded system lpc22** watchdog overflow interrupt generated source code

AVR定时器功能 定时器每秒加一,0到255循环,通过数码管显示计数值-AVR timer function Timer per second, plus one, 0 to 255 cycles, through the LED display counts

里面是单片机的开发板的源程序，包括AD，DA转换，数码管显示，按键的识别，液晶的显示是、数据存储，等等 还有开发板配套的原理图和PCB图纸，让你看整个程序更容易-There is a single-chip development board of the source, including AD, DA conversion, digital tube display, identification keys, LCD display, the data storage, and so there is supporting development board schematic and PCB drawings, so that you look at the whole process easier

用51单片机写的电子钟程序，完全可用,但效率还不是很好-Single-chip with 51 minutes to write an electronic process, completely available, but efficiency is not very good

控制步进电机正转，如：p3.2正转,p3.3反转,p3.4停止 步进电机接p1.0p1.1p1.2p1.3，正转，反转各3圈，正反快慢功能，是步进机的经典程序。-Stepper motor control is transferred, such as: p3.2 is transferred, p3.3 inversion, p3.4 stop stepper motor then p1.0p1.1p1.2p1.3, is turn, reversal of the 3 lap, both positive and negative speed function, is a classic step process machine.

基于51系列单片机内部定时器写的一个时钟程序-51 Series single-chip based on an internal timer to write a clock procedures