MTK_Device Driver_Training

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1、DeviceDriverLiuYong2005SepYong_liu@mtkcn.comOutline¢DriverOverview¢PWM¢Addressmapping¢UART¢Bootup¢USB¢EMI&Flash¢Audioconfigure¢PMIC&SIM¢LCD¢ADCEINTAUXtask¢Camera¢BMT¢Keypad¢GPIO2OverviewMMIL4IrDADeviceDriverLayer1BasebandChipsetRFPMICModuleBluetoothSynthe-sizerTouchCameraUSBSD/PanelMedi

2、aAudioLCDLCDICAudioMMCDisplayDisplayCodecIn/OutAccessories:BluetoothheadsetUSBdatacable3MT6205SolutionDiagram4MT6218SolutionDiagram5MT6219SolutionDiagram6Basebandaddressmapping(Example)MCU32bitMemoryAddressSpaceFFFF_FFFFh-ReservedA000_0000h9FFF_FFFFh9800_0000hReserved-9000_0000h9000_000

3、0hVirtualFIFO8FFF_FFFFh-APBPeripherals8000_0000h7FFF_FFFFh7800_0000hLCD-7000_0000h7000_0000hUSB6FFF_FFFFh-MCUDSPinterface5000_0000h4FFF_FFFFh-Internalmemory4000_0000h3FFF_FFFFh-Externalmemory0000_0000h7BootremappingChipSelect0(CS0)toFlashMT6218BMCPMCPBOOTROMChipSelect1(CS1)toSRAMorPSR

4、AM¢Remapping¢Hardwaresetting(@reset)¢iBoottiedtolow⇒BootfromBOOTROM¢iBoottiedtohigh⇒BootfromCS0BIT1BIT0Description00Address0x00atBOOTROM.10Address0x00atCS011Address0x00atCS18MCUClockChipsetNotationDescriptionMT6205BMT6218/MT6219/17EXT_CLOCKExternalEXT_13M,EXT_13M,EXT_26MPLLEXT_26MMCU

5、_CLOCKMCUClockMCU_13M,MCU_26M,MCU_52MMCU_26Mmake$(CUSTOM)_$(PROJECT).mak9BootupandInitializationRESETBootfromReceivingstart-upNOSwitchPCtoExternalpatternviaUART1BOOTROMDeviceBank#0within150ms?YESAssignSupervisorModeSPMETAModeIfabnormalresetYESResponsetheIsdetected?abnormalresetNOConfi

6、gureEMIDatacopyfromflashtoSRAMAssignSPtovariousoperationmodesdefinedbyARMCPU.initsrcinit.cApplicationinitialization10EMI¢8externalchipselects(CS0toCS7)¢Features¢Deepaddressrangeupto64MB¢Fixedstartaddress¢Pagemodesupportable¢Availablepagesizeare8,16,32or64Bytes.¢8-bitsor16-bitsdevic

7、esupportable¢Richoffine-tuneitems¢Readset-uptime¢Writeset-uptime¢Writeholdtime11EMIECLK¢READcycleRLT+1EAECSn#C2RSERD#EDEADVRLT=4,C2RS=2ECLKWST+C2WH+2EA¢WritecycleECSn#C2WSC2WH+1EWR#EDEADVWST=3,C2WS=2,C2WH=1¢RefertoBasebandchipdatasheetandsystemconfigurationguidefordetailsofEMI.