Firmware Programme Design Based on AN2131QC USB
Hongju Mi
Abstract
Hongju Mi
Abstract
Universal Serial Bus(USB)is the standard equipment of the PC,using USB interface can connect many different devices,it sustains plug and play,and has the function of autodetection.To know well and design the USB device,it has to use the microcontroller which has the USB interface or special interface controlling chip.The paper discusses the instance of USB interface built-in the common AN2131QC USB single chip,and describes the characteristics of EZ-USB AN2131QC,the communication of the computer and device,transfers,frame and USB interface firmware programme design simply.
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Universal Serial Bus(USB)is the standard equipment of the PC,using USB interface can connect many different devices,it sustains plug and play,and has the function of autodetection.To know well and design the USB device,it has to use the microcontroller which has the USB interface or special interface controlling chip.The paper discusses the instance of USB interface built-in the common AN2131QC USB single chip,and describes the characteristics of EZ-USB AN2131QC,the communication of the computer and device,transfers,frame and USB interface firmware programme design simply.
Key concepts: USB, Firmware, eXtensible Host Controller Interface (xHCI), Host controller interface, USB hub, PC Card, Embedded system, Interface (matter)