USBASP制作、驱动安装、下载的全过程。固件+ D ..

在做项目（工程）的时候，我们经常要用到比较多的按键，而且IO 资源紧张， 于是我们就想方设法地在别的模块中节省IO 口，好不容易挤出一两个IO 口，却 发现仍然不够用，实在没办法了就添加一个IC 来扫键。一个IC 虽然价格不高， 但对于大批量生产而且产品利润低的厂家来说，这是一笔不菲的开支! 那，我们能不能想到比较好的扫键方法：用最少的IO 口，扫最多的键？可以吗？-Doing the project (engineering), we often use the relatively large number of keys, and the IO resource constraints, so we are trying to save in another module IO ports, finally out of one or two IO ports, only to find is still not enough there is really no other way to add an IC to sweep on the keys. Although the price of an IC is not high, but low profits, high-volume production and product manufacturers, this is spending a lot of money! That, we can not think of a better scan key method: with a minimum of IO ports, scan Most of the keys? OK?

多路数据采集系统, -Multi-channel data acquisition systems, multi-channel data acquisition system,

SCM MarqueeSCM MarqueeSCM MarqueeSCM MarqueeSCM 51狙击手

keil c51 小模式下uc/os应用，版本keil uv2 6.12，很好用-decoder mode uc/os application, version 6.12 Keil uv2 good use

用５１芯片控制CF卡的技术文章，对广大５１开发者具有参考价值-control CF card chip technology articles, the majority of 51 developers have reference value

网络端口到进程PID 的转换例子。可以显示本机运行的网络进程对应的端口号-network port to the conversion process PID example. Be able to show the machine running the process corresponding to the network port number

对单片机初学者非常实用的一些小程序，这是第一部分-right MCU beginners very useful to a number of small, this is the first part

一线制通讯 communication-communications line communication system

51单片机的C语言编写的DS18B20的驱动程序，用于测试温度-51 Single-chip C-language driver DS18B20 for testing temperature

avr gcc rtc source code examples