按键扫描 51单片机加8279 8279通过74LS 138译码器扩展4×4键盘、6位显示器。 由3...

摩托罗拉HCS08系列,用片内FLASH模拟EEPROM的程序在RAM中执行!很有价值!-Motorola HCS08 family, the EEPROM chip FLASH simulation procedure implemented in the RAM! Great value!

这个是一款LCD驱动芯片的源程序，LCD1621使用广泛，可以供大家参考讨论-This is a LCD driver chip of the source, LCD1621 widely used for your reference discussion

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?

一个27k的小程序24cxx.exe,这款程序不大,功能却不逊色于某些大型软件,搽读写校样样都能,最大的优点就是速度奇快,完全可以作为量写的工具-a small 27k 24cxx.exe process, not the product, not less functional in certain large-scale software, paint on everything the school can read and write, the biggest advantage is speed brilliantly quick, we can write as a tool for volume

边坡雷达监视系统单片机控制模块源程序 [电源管理，中断控制，串口通信]-Slope monitoring system MCU control module source

8051 单片机和外围　ＤＶＢ芯片通讯-8051 and external DVB-chip communication

pic16f上12864液晶显示，ad转换程序，时钟显示程序，串口程序。-12864 LCD pic16f on, ad conversion process, the clock display program, serial program.

非常完美的日历，带PROTEUS仿真。 另附日历星期算法。-Very perfect calendar, with PROTEUS simulation. Algorithm separate calendar weeks.

能准确测量输入频率，配备相应的C语言程序。-An accurate measure of input frequency, with the corresponding C language procedure.

[推荐]彭光红先生的《小容量单片机系统的C语言程序结构》Point RTOS monolithic integrated circuit real-time operating system -[Recommended] Mr. Peng Guanghong