一个USB接口驱动编程例子

MCP73831 是一款高级线性充电管理控制器，它适用于 空间小而对成本敏感的应用场合。MCP73831 提供 8 引 脚2 mm x 3 mm DFN 和5 引脚SOT23 两种封装形式。 由于体积小且外接元件少，MCP73831 非常适用于便携 式设备。MCP73831 也可用于USB 充电设备，它符合 主流USB 总线电源的所有规范。 MCP73831 采用恒流/ 恒压充电算法，并提供预充选项 和充电结束控制选项。恒压充电调节有四个选择： 4.20V、4.35V、 4.40V 和4.50V，这可以适应最新涌现 出来的电池充电要求。恒流充电电流由一个外部电阻设 定。在高功率或高温的外界环境下， MCP73831 将根据 管芯温度对充电电流大小进行限制。热调节功能对充电 周期进行优化，并维持器件的可靠性。-err

High volume USB 2.0 devices will be designed using ASIC technology with embedded USB 2.0 support. For full-speed USB devices the operating frequency was low enough to allow data recovery to be handled in a vendors VHDL code, with the ASIC vendor providing only a simple level translator to meet the USB signaling requirements. Today s gate arrays operate comfortably between 30 and 60 MHz. With USB 2.0 signaling running at hundreds of MHz, the existing design methodology must change.

D12的驱动程序-D12 driver

2003-11-24_D12tst用户程序源代码.rar-2003- 11-24_D12tst user program source code. Rar

usb1.1协议的实现，usb设备端的开发-USB1.1 protocol implemented, USB Device Development

源码程序包，很不错的东西！希望感兴趣的可以下了-source package, a very good thing! Interested hope they can look at the ````````````````````````````

usb通信的上位机软件，适用于lpc的arm，可以实现收发三个端点-usb PC communications software, applied to LPC

非常好的的USB 接口程序 基于pic单片机-Very good procedures for the USB interface pic based on single chip

实现了PC机和外接硬件实验台的通信，查找设备，根据设备的参数和性能进行连接...对于硬件学习者有很好帮助作用。-Realize the PC and external hardware test-bed of communications, search equipment, according to equipment and performance parameters for the hardware to connect ... to help learners have a very good role.

USB固件程序,文件系统,USB2.0其它-USB firmware, file system, USB2.0 other