日本北斗公司开发的usb鼠标源程序单片机为HITACHI

单片机编程的常用子程序，编程时候简单修改就可以使用。-Microcontroller Programmer common subroutines, programming time can use a simple modification.

LT_1B msp430开发板例子程序－TB6

利用MODEM实现单片机与PC通信-use MODEM SCM and PC communication

该例程是利用MC9S12DG128中TC0和TC7通道共同完成模拟PWM功能的实例。-The routine is the use of MC9S12DG128 the TC0 and TC7 simulated co-channel PWM function instance.

EEPROM读写程序: 先向EEPROM写入一幅图片数据，然后从EEPROM中读取，并在128*64显示屏显示出来。-EEPROM read and write procedures: first EEPROM write a piece of picture data, and then read from EEPROM, and 128* 64 screen is displayed.

一个能够控制抽油烟机定时开关及风速调节的程序-A timer switch to control the range and speed adjustment procedures

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?

交流采样的滤波资料和一些参考程序，对于做测控系统的有一定的参考意义-AC sampling filter information and some reference procedures for monitoring and control systems do have some reference value

Keil C51 example

SMC162的驱动 源码在51单片机中测试过-SMC162 source of the 51 drivers in single-chip tested