Microchip的USB设备固件框架的用户指南

ThisdocumentdiscussesthetechnicaldetailsandfunctionalityoftheMicrochipUSB

DeviceFirmwareFramework.Itassumesthattheprogrammeralreadyisfamiliarwith

thefollowing:

ïHowtowriteCprograms

ïHowtousetheMPLABIntegratedDevelopmentEnvironment(IDE)

ïThemicrocontrollerdatasheetforwhichthecodeisbeingwritten

ïBasicUSBconcepts,suchasthosecoveredinchapters5,8and9intheofficial

USB2.0specifications

Itemsdiscussedinthischapterinclude:

ïConventionsUsedinthisGuide

ïRecommendedReading

ïTheMicrochipWebSite

ïDevelopmentSystemsCustomerChangeNotificationService

ïCustomerSupport

ïDocumentRevisionHistoryMicrochipUSBDeviceFirmwareFrameworkUser’sGuide2008MicrochipTechnologyInc.DS51679BNotethefollowingdetailsofthecodeprotectionfeatureonMicrochipdevices:MicrochipproductsmeetthespecificationcontainedintheirparticularMicrochipDataSheet.Microchipbelievesthatitsfamilyofproductsisoneofthemostsecurefamiliesofitskindonthemarkettoday,whenusedintheintendedmannerandundernormalconditions.Therearedishonestandpossiblyillegalmethodsusedtobreachthecodeprotectionfeature.Allofthesemethods,toourknowledge,requireusingtheMicrochipproductsinamanneroutsidethe