Hi all,
My USB Host Driver working fine with LPC1768 for USB HID Devices. But I want to use this driver with LPC1788(On Embedded Artist Board) its doesnt work. LPC1788 works fine with USB Host Lite sample. And I use this sammple's Hardware init function but my driver didnt work.
I have a Hardware Init block. It looks like :
#if IC == 1788 #define USBControlReg (LPC_USB->Control) #define USBOTGStatusControlReg (LPC_USB->StCtrl) #define USBInterruptStatusReg (LPC_USB->InterruptStatus) #define USBControlHeadEDReg (LPC_USB->ControlHeadED) #define USBBulkHeadEDReg (LPC_USB->BulkHeadED) #define USBCommandStatusReg (LPC_USB->CommandStatus) #define USBFMIntervalReg (LPC_USB->FmInterval) #define USBPeriodicStartReg (LPC_USB->PeriodicStart) #define USBRhStatusReg (LPC_USB->RhStatus) #define USBHCCAReg (LPC_USB->HCCA) #define USBInterruptEnableReg (LPC_USB->InterruptEnable) #define USBRhPortStatus1Reg (LPC_USB->RhPortStatus1) #elif (IC == 1768) #define USBControlReg (LPC_USB->HcControl) #define USBOTGStatusControlReg (LPC_USB->OTGStCtrl) #define USBInterruptStatusReg (LPC_USB->HcInterruptStatus) #define USBControlHeadEDReg (LPC_USB->HcControlHeadED) #define USBBulkHeadEDReg (LPC_USB->HcBulkHeadED) #define USBCommandStatusReg (LPC_USB->HcCommandStatus) #define USBFMIntervalReg (LPC_USB->HcFmInterval) #define USBPeriodicStartReg (LPC_USB->HcPeriodicStart) #define USBRhStatusReg (LPC_USB->HcRhStatus) #define USBHCCAReg (LPC_USB->HcHCCA) #define USBInterruptEnableReg (LPC_USB->HcInterruptEnable) #define USBRhPortStatus1Reg (LPC_USB->HcRhPortStatus1) #else #error "Undefined IC" #endif PRIVATE void hwInit(HCCA *cca) { NVIC_DisableIRQ(USB_IRQn); // turn on power for USB CLKPWR_ConfigPPWR(CLKPWR_PCONP_PCUSB, ENABLE); // Enable USB host clock, port selection and AHB clock USBClockControlReg |= CLOCK_MASK; // Wait for clocks to become available while ((USBClockStatusReg & CLOCK_MASK) != CLOCK_MASK); // We are a Host USBOTGStatusControlReg |= 1; configuratePins(); // Reset OHCI block USBControlReg = 0; USBControlHeadEDReg = 0; USBBulkHeadEDReg = 0; USBCommandStatusReg = HostControllerReset; USBFMIntervalReg = DEFAULT_FMINTERVAL; USBPeriodicStartReg = FRAMEINTERVAL * 90 / 100; USBControlReg = (USBControlReg & (~HostControllerFunctionalState)) | OperationalMask; USBRhStatusReg = SetGlobalPower; USBHCCAReg = (U32)cca; USBInterruptStatusReg |= USBInterruptStatusReg; USBInterruptEnableReg = MasterInterruptEnable | WritebackDoneHead | RootHubStatusChange | FrameNumberOverflow; NVIC_SetPriority(USB_IRQn, 0); NVIC_EnableIRQ(USB_IRQn); // 10ms delay before diving in hostDelayMS(10); }
There is All hardware dependent code. But system not work same with LPC1768 and LPC1788.
Is there any difference between LPC1768 and LPC1788 USB unit?
Thanks.
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