使用PIC17CXXX 下载16进制文件到外部快闪记忆体

ThePIC17CXXXdeviceshavethecapabilitytointer-faceexternalFLASHmemoryintothe64Kx16pro-grammemoryspace.Coupledwiththisfeatureisthe

abilitytoreadandwritetotheentireprogrammemory

ofthedevice.Usingoneofthestandardserialinter-facesonthePICmicro(USART,SPI,I

2

C™),acom-pletehexfilecanbedownloadedintotheexternal

FLASHmemorybyabootloaderprogram.The

PIC17CXXXfamilyconsistsofsevendevicesasshownMDownloadingHEXFilestoExternalFLASHMemoryTB024UsingPIC17CXXXPICmicroMicrocontrollersAuthor:RodgerRicheyMicrochipTechnologyInc.INTRODUCTIONThePIC17CXXXdeviceshavethecapabilitytointer-faceexternalFLASHmemoryintothe64Kx16pro-grammemoryspace.Coupledwiththisfeatureistheabilitytoreadandwritetotheentireprogrammemoryofthedevice.Usingoneofthestandardserialinter-facesonthePICmicro(USART,SPI,I2C),acom-pletehexlecanbedownloadedintotheexternalFLASHmemorybyabootloaderprogram.ThePIC17CXXXfamilyconsistsofsevendevicesasshowninTable1TABLE1