平凡51单片机教程，写得不错，适合初学者

cypress ez-usb usb-i2c-in 源码-cypress ez-usb usb- i2c-in-source

本文档包括单片机系统中常用到的时钟中断、通讯及键盘扫描等模块(见所附源程序)的说明。这些模块使用前后台系统模型。为达到最大的灵活性, 需要在用户工程中定义config.h文件, 在其中定义各模块可选参数的设置，而不是直接更改源代码。-this document, including SCM system clock used to the interruption communications and keyboard scanning modules (see accompanying source code) Note. These modules use before and after the Taiwan model. To achieve maximum flexibility in user defined config.h engineering documents, in the definition module optional parameter settings, and not to directly change the source code.

AT91SAM7S256开发板基础demo，已验证-AT91SAM7S256 development board based on demo, verified

AVR GCC IO口模拟的IIC总线。-AVR GCC IO port simulation IIC bus.

此程序为51实验板1602显示字符程序，经典字量少。-This procedure for 1602 show 51 characters board procedures, the classic word less.

4510开发板bios源码 (强烈推荐).zip-4510 development board bios source (strongly recommended). Zip

PIC16F74单片机A/D10位模拟量采集,12864LCD汉显,显示4位数带小数点-PIC16F74 microcontroller A/D10-analog acquisition, 12864LCD Han obviously, 4 shows the median with a decimal point

12864液晶屏驱动: 显示器片选0=CS1,1=CS2 BZPD 0=上8X8半字,1=下8X8半字 HZDH 0=显示汉字，1=显示动画-12,864 LCD Driver : Display- election CS1 = 0, 1 = 0 = CS2 BZPD on 8x8-word, a = half under 8x8 = 0 word HZDH show Chinese characters, animation shows a =

利用C8051F020作为控制器，对74LS165进行控制-C8051F020 use as a controller, control of the 74LS165

电子琴的源码，可以实现电子琴的开发以及应用、-dianzqin