This is a PCI to USB bridge schematic that i was draw by hand from a PCI to USB card, the schematic use VT6212L to make bridge, the idear is that we c...
1 to 4 usb hub uPD720114 ET-0192 （4端口总线供电_自供电集线器）原理图...
This software allows users to see how a serial async com port can be used to comunicate with a sync device (SPI). In this case, the software reads a l...
USB的全称是Universal Serial Bus,USB支持热插拔,即插即用的优点,所以USB接口已经成为MP3的最主要的接口方式。USB有两个规范,即USB1.1和USB2.0。 USB1.1是目前较为普遍的USB规范,其高速方式的传输速率为12Mbps,低速方式的传输速率为。。。...
driver to interface AVR chip with USB port, compile with WinAVR, very cool...
