C8051F040 t3可调频率方波输出例程

AVR单片机的C语言开发电子书 ，既可以作为教材使用又可以作为开发人员的查询手册！-AVR C language e-books, can be used as teaching materials can be developed as a manual of inquiries!

高速电路的信号完整性问题，共同学习，有借鉴意义-Based on the Signal Integrality theory, the key problem met during signal processing module design and its solution is given

本库利用51的timer2，9600bps适用于有片内外部存储器的51芯片占用32byte缓存，重写putchar,getchar函数，循环队列，后台操作。-for the use of timer2 51, 9600 applied to the external memory unit within the occupied 32byte 51 chip cache, rewritten putchar, getchar function, circulating cohort, background operation.

用89S52进行DS1820温度读取程序-89S52 used for DS1820 temperature reader

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?

pid控制的源程序，很不错的，请大家注意关注啊-pid control source, it is good, draw attention to concerns ah

PIC18F4550_USB开发原代码，可以给需要用单片机开发USB通信使用参考-PIC18F4550_USB development of the original code, can require the development of USB communication using single-chip reference

此程序为本人在公司开发的继电器功能测试仪，用KEIL C编写。可以测试线圈电阻，接触电阻，吸合释放电压，时间等参数。采用WINBONG W77E58 单片机。-This procedure I developed Relay Functional Tester, using KEIL C preparation. To test the coil resistance, contact resistance, pull-release voltage and time parameters. Singlechip WINBONG W77E58 used.

本程序是在c51下的93c46的驱动程序。对开发小产品大有好处。希望对大家有帮助.-is in the process of 93c46 decoder drivers. Small products in the development process. We want to help.

单片机简易频率计。包含有Proteus仿真程序-Simple single-chip frequency counter. Proteus simulation program contains