c51下的一个键盘程序，用循环轮训法检测是否有键按下。

用51 控制对接收来自0832的信号进行ad转换-With 51 receiving control signals from the 0832 conversion ad

该教案是嵌入式系统开发中，模块设计的文档资料，具有很高的参考价值，上课用的，拿来和大家分享一下-The teaching plan is to develop an embedded system, the modular design documentation, a high reference value, used in class, use and share with you

利用DSP的MCBSP串口调用其内部正弦表 重串口输出正弦-use DSP MCBSP serial called its internal sine table re-Serial output sinusoidal

电路原理图 电路原理图 -Circuit schematic circuit schematic circuit schematic circuit schematic

LED数码管动态显示函数 定时器 T1 ,A组比较中断产生5mS周期性中断 在中断里刷新显示 -LED digital tube dynamic display function timer T1, A group generated 5MS cyclical interruption interruption interruption in refresh display

programs for 8051 kit

读写USB端口的VC程序，编译说明 ： 1. 安装DDK 2. 把DDK的inc路径填在头文件的包含路径中 3. 把DDK的lib路径填在库文件的包含路径中 4. 注释掉原代码中的HIDD_ATTRIBUTES结构 // 不知作者为什么要添加这个结构定义 5. 添加setupapi.lib 如果不想安装DDK，就去掉前两步，但需要拷贝相关的头文件和库文件到工程目录--A VC program reading/writing USB port. Compilationg steps: 1. install DDK. 2. include DDK s inc path in header file s searching path. 3. include DDK s lib path in the library s search path. 4. comment out HIDD_ATTRIBUTES structure in the source file. 5. add setupapi.lib. If you don t want to install DDK, you could omit the first 2 steps, but you need to copy corresponding header files and library files.

8019中文数据手册，给阅读英文数据手册嫌麻烦的朋友-8019 manual to read English manual data as troublesome friend

nRF24L01 software driver running on AT89C5131A micrcontroller.-nRF24L01 driver software running on AT89C 5131A micrcontroller.

fat16 in compact flash