Implementation Of USB Communication Protocol And Driver Development Based On PDIUSBD12

As a computer periphera l interface techonology of the importa nt cha nges,USB computer in the trad itiona l orga niza tiona l structure , based on the idea tointrod uce the network topolog y. With the end-users of its ease of use, wide ra ngeof applica tions, cha racteristic such as convenience add itions periphera ls to meetthe multimed ia capa bilities of modern computer expa nsion, has been grad ua llybecome the ma instrea m of the computer interface.Universa l Seria l Bus is a new Specifica tion for microcompu ter businterface. With the continuing adva nce of the clien ts' dema nd for the speed of adata collection system, USB is more and more widely used in data collectionsystem for its ad va nta ges such as convenience, expa nd ing port with ease andhigh speed etc. This article presents a particula r description of the design anddevelopment of a da ta collection system based on USB. Single chip progra msthe firewa re to the USB interface chip-PDIUSBD12 ; communica tion appea rsbetween D12 and up-loca tion computer and ma n-machine mutua l interfacecomes into being; lots of data from the ind ustry spot are printed, ana lyzed anddisposed on time. On the base of wonderful understa nd ing to USB protocol anddevice truss, I finish the ha rd wa re design and softwa re progra mme of the da tacollection system. And dra w the principle cha rt.The softwa re progra mme ma inly includes: the firewa re code in need ofD12's ma ximum tra nsmission ra te; USB device driver and clien t applica tionunder the circusta nce of Win XP opera tion system in computer. Throu gh the dataconmmunica tion system, we ca n master the sk ill of USB applica tion and ha vebetter comprehension in the adva nta ges of USB interface on the basic ofmastering USB communica tion protocol.