生物计量电子员工考勤登记密码保护

一个嵌入式操作系统(microwindows)的源代码-An embedded operating system (microwindows) source code

mcs51单片机键盘扫描程序，很适合单片机初学者使用学习-Singlechip mcs51 keyboard scanning process, it is suitable for beginners to use single-chip learning

能实现：打印机初始化，自动送纸，字车电机右加速，字车电机右减速，字车电机右常速，字车电机右慢速，字车电机左进…… 纸电机慢速进纸，走纸电机退纸，打印一行内容……

TI DSP BIOS user manual and driver development ,TI官方提出的BIOS使用手册,有利用完善DSP嵌入式系统的编程工具

在NIOS中生成dds的.h文件，配合相应的.c文件，生成dds，由于要尽量使软件符合软件工程要求，故在main函数中仅需调用.c，在头文件中添加.h-Dds in NIOS generated the. H file, with the corresponding. C files, generate dds, As we have to try to make the software meet the software engineering requirements, it is only in the main function call. C, add in the header file. H

基于单片机处理的方式的数字示波器是以单片机为控制中心，通过对采样电路的控制进行波形实时采样、数据处理和存储显示-Microcontroller-based ways to handle the digital oscilloscope is a single-chip microcomputer control center, through the control of the sampling circuit waveforms real-time sampling, data processing and storage display

最简单的20键PS/2键值读取程序，PS/2的clk接INT0，data接P1_0--A simple read/write program from 20-keys PS/2 keyboard. PS/2 s clk connects to INTO and data connects to P1_0.

PC-Lint是一个历史悠久，功能异常强劲的静态代码检测工具。它的使用历史可以追溯到计算机编程的远古时代（30多年以前）。经过这么多年的发展，它不但能够监测出许多语法逻辑上的隐患，而且也能够有效地帮你提出许多程序在空间利用、运行效率上的改进点，在很多专业级的软件公司，比如Microsoft， PC-Lint检查无错误无警告是代码首先要过的第一关，我个人觉得，对于小公司和个人开发而言，PC-Lint也非常重要，因为基于开发成本考虑，小公司和个人往往不能拿出很多很全面的测试，这时候，PC-Lint的强劲功能可以很好地提高软件的质量。--PC-Lint is an old and very powerful static code checking tool. After more than 30 years development, it could not only detect potential bugs in the codes, but also help improving the space usage of your programs. In some big software companies, like Microsoft, the first requirement of the code is to pass PC-Lint. For small companies or personal developers, PC-Lint could also be very helpful.

这是单机测试串口发送和接收数据的程序,很简单啊!完成基本的串口工作-This is the single test of transmitting and receiving serial data procedure is very simple ah! Completed the basic work of the serial

这是我们自己找到的一个单片机开发板，它是STC51的比89C51有更多的功能，自带A/D转换，里面资料齐全，原理图，实物图都有-This is our own to find a microcontroller development board, which is STC51 more than 89C51 functions, bring their own A/D conversion, which information is available, schematics, physical map has