国家标准

本程序为实验板的总体测试程序，综合测试了整个实验板上的绝大多数功能,下载程序后会依次看到以下5种状态。 1.8个流水灯先会从上到下流动一遍，同时蜂鸣器发声。 2.接着DAC电流指示灯由暗变亮 3.接着前三位数码管显示温度值 4.接着AD数值显示在数码管的前三位 5.接着等待矩阵键盘的按下，按下后相应的数码显示在数码管的后三位上-This procedure for the experiment board" s overall test program, a comprehensive test of the vast majority of the entire experiment on-board features, download the program will in turn see the following five kinds of states. 1.8 water lights will first flow from top to bottom again, at the same time buzzer sound. 2. And then DAC current indicator light changes from the dark 3. And then the top three LED display temperature 4. And then AD values displayed in the top three digital tube 5. And then wait for the keyboard matrix is pressed, press the corresponding post- digital display in the digital control on the latter three

Freescale的LIN总线通讯和UART共用，需要模拟设置间隔点检测报文头，程序只是举例简单数组收发，可以以此为基础进行修改。

这是一个SPI总线的读写程序，适合新手入门使用，简单易学，本人就是从这个简单例程开始学习AVR SPI的 希望对新人有帮助-This is a SPI bus to read and write procedures, suitable for beginners to use, easy to learn, my routine is to start from this simple study of the AVR SPI would like to help newcomers

linux 串口通信驱动源码,该代码能够接PC机键盘-linux-source-driven serial communication, the code can access PC keyboard

弹片机的行列式（矩阵式）键盘，查询方式的，C语言的，其中SWICTH自己写.-Shrapnel machine determinant (matrix) keyboard, inquiry approach, C language, which swicth to write their own.

硬件基于8051与RTL8019 OpenTCP_8051 一共220K 提供了客户端，服务端，TCP，UDP等。

PIC系列单片机典型应用程序集: 17c42-PIC MCU sets typical applications: 17c42

串行调试

此代码基于NXP公司的LPC2138ARM7源代码，能够驱动超声波发射与接收器，测距精度小于1厘米，代码注释详细，学习参考价值大，欢迎来下载使用！

一个可以立即使用的嵌入式操作系统，已经在应用很稳定。具备实时性，支持设备扩充编程-an immediate use of embedded operating systems, the application has been very stable. With real-time, support equipment to expand programming