SD卡的简单介绍，包括SD卡的分类，协议，脚位定义等。

4-20MA信号发生器，含电路图，使用说明以及汇编源程序-4-20MA signal generator, including schematics, source code for use as well as the compilation

FSK通信的编程等等,使用2051编的,有模拟UART.-FSK communications programming, and so on, the use of the 2051 series, to mock UART.

介绍顺德地区小家电电路设计的主要特点,为PPT格式，对大家了解小家电产品的电路开发有一定的帮助-Introduction of small household electrical appliances in Shunde the main features of circuit design, in order to PPT format, to all of us to understand the development of small household electrical appliances in the circuit is certainly helpful

一个12864液晶显示的程序，希望对大家有点用，希望有液晶开发经验的朋友来交流-a 12,864 LCD procedures, we hope to use a bit, LCD hope that the development experience of a friend to share

用C语言编写的PIC单片机一些例程源代码，很有参考价值。-C language prepared by the PIC source code of some routines, great reference value.

工程师在用Keil开发程序时，在代码性能要求较高的场合，需要对代码段的执行时间作统计。比如在做LED显示屏软件扫描程序，或一些定时采集数据程序，如果在软件仿真的时候就能够清晰知道代码段的运行时间，那就可以对程序进行优化，或者插入汇编代码(asm)达到最高运行速度。 关键字:Keil DLL C语言 ASM 汇编-engineers in the development process with Keil, the code performance requirements higher occasions, need to block the execution time statistics. For example, in the software do LED scanning procedures, or some regular data collection procedures, If the software simulation time can understand clearly code of the running time, it can process optimization, or insert code compilation (asm2) to achieve maximum speed. Keywords : Keil DLL C language compilation ASM

SD卡读写程序 1. sdconfig.h: 该文件为SD卡读写模块配置头文件，用户可根据实际硬件条件进行修改. 2. SD目录: SD卡读写模块的全部文件,一般不用修改. 3. 建议sdconfig.h文件不要放于SD目录中，因为SD目录中的文件一般无须修改, 而sdconfig.h通常会有改动.-1. Sdconfig.h: The document for the SD card reader module configuration header files, the user hardware according to actual conditions can be modified. 2. SD directory: SD card reader module of all the documents, the general need not be amended. 3. Proposed sdconfig. h files directory should not be put in SD because SD files in the directory are not normally required to be amended and the changes are usually sdconfig.h.

单片机串口通讯源程序，具体功能经过测试，请大家-microcontroller serial communication program, the specific function of the test, please s

can转以太网网关，采用NUTOS NUTNET-can switch to Ethernet gateway, using NUTOS NUTNET

fortune 98o22，24系列EEP读写子程序，使用接口函数，可直接调用-fortune 98o22, 24 series of EEP read and write subroutines, using the interface functions can directly call the