I2c classic procedure

基于sl1811芯片的功能，完成usb host 的功能-usb host

c8051f120_ad采样程序 ，很好用的-c8051f120_ad sampling procedures, well used

学习51串口的经典例程，对于学习51串口很好处；熟悉串口的初始化及给端口的理解很有帮助！-51 classic serial learning routines, learning well Office 51 serial port familiar with the serial port initialization and to the understanding of great help!

该源码采用标准c编写，使用SPI方式访问SD卡。-c prepared using standard, the use of SPI mode visit the SD Card.

MSP单片机开发应用实例，适用于任何型号-MSP development and application of single-chip example, apply to any model

12" LCD iniotial +SSD1289IC-12" LCD iniotial+SSD1289IC

PTR8000发送接收驱动程序。只需在主程序中只需做小小的改动就可以，使用这个模块！！！ -Send PTR8000 receive driver. Only in the main program in only small changes can make use of this module! ! !

C51的Usb实现代码及其固件工程文档，开发包（lib），及其相应函数。-C51 Usb achieve firmware code and project documentation, development kits (lib), and the corresponding function.

因需要，单片机的键盘扫描和数码管显示共用一口，用定时器实现，原创-Due to the needs of single-chip microcomputer keyboard scanning and sharing a digital tube display with a timer to achieve the original

用proteus进行的开发，和刚上传的c文件一起用-Proteus carried out with development, and the newly uploaded file with c