📄 sl811.lst
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629 void speed_detect(void)
630 {
631 //pNumPort = 0; // zero no. of downstream ports
632 bXXGFlags.bits.SLAVE_FOUND = FALSE; // Clear USB device found flag
633 //bXXGFlags.bits.FULL_SPEED = TRUE; // Assume full speed device
634 //HUB_DEVICE = FALSE; // not HUB device
635 bXXGFlags.bits.DATA_STOP = FALSE; //
636
637 SL811Write(cSOFcnt,0xAE); // Set SOF high counter, no change D+/D-, host mode
638 SL811Write(CtrlReg,0x08); // Reset USB engine, full-speed setup, suspend disable
639 DelayMs(10); // Delay for HW stablize
640 SL811Write(CtrlReg,0x00); // Set to normal operation
641 SL811Write(IntEna,0x61); // USB-A, Insert/Remove, USB_Resume.
642 SL811Write(IntStatus,INT_CLEAR); // Clear Interrupt enable status
643 DelayMs(10); // Delay for HW stablize
644
645 if(SL811Read(IntStatus)&USB_RESET)
646 { // test for USB reset
647 SL811Write(IntStatus,INT_CLEAR);// Clear Interrupt enable status
648 DelayMs(30); // Blink LED - waiting for slave USB plug-in
649 //OUTB ^= ACTIVE_BLINK; // Blink Active LED
650 //OUTA |= PORTX_LED; // clear debug LEDs
651 return ; // exit speed_detect()
652 }
653
654 //if((SL811Read(IntStatus)&USB_DPLUS)==0) // Checking full or low speed
655 //{ // ** Low Speed is detected ** //
656 // SL811Write(cSOFcnt,0xEE); // Set up host and low speed direct and SOF cnt
657 // SL811Write(cDATASet,0xE0); // SOF Counter Low = 0xE0; 1ms interval
658 // SL811Write(CtrlReg,0x21); // Setup 6MHz and EOP enable
659 //uHub.bPortSpeed[1] = 1; // low speed for Device #1
660 // bXXGFlags.bits.FULL_SPEED = FALSE; // low speed device flag
661 //}
662 //else
663 { // ** Full Speed is detected ** //
664 SL811Write(cSOFcnt,0xAE); // Set up host & full speed direct and SOF cnt
665 SL811Write(cDATASet,0xE0); // SOF Counter Low = 0xE0; 1ms interval
666 SL811Write(CtrlReg,0x05); // Setup 48MHz and SOF enable
667 //uHub.bPortSpeed[1] = 0; // full speed for Device #1
668 }
669
670 //OUTB |= ACTIVE_BLINK; // clear Active LED
671 //bXXGFlags.bits.SLAVE_FOUND = TRUE; // Set USB device found flag
672 bXXGFlags.bits.SLAVE_ENUMERATED = FALSE; // no slave device enumeration
673
674 SL811Write(EP0Status,0x50); // Setup SOF Token, EP0
675 SL811Write(EP0Counter,0x00); // reset to zero count
676 SL811Write(EP0Control,0x01); // start generate SOF or EOP
677
678 DelayMs(25); // Hub required approx. 24.1mS
679 SL811Write(IntStatus,INT_CLEAR); // Clear Interrupt status
680 //return 0; // exit speed_detect();
681 }
682 */
683 //*****************************************************************************************
684 // Detect USB Device
C51 COMPILER V7.20 SL811 12/13/2005 15:28:02 PAGE 14
685 //*****************************************************************************************
686 /*
687 void slave_detect(void)
688 {
689 //int retDataRW = FALSE;
690
691 //-------------------------------------------------------------------------
692 // Wait for EZUSB enumeration
693 //-------------------------------------------------------------------------
694 //if(!CONFIG_DONE) // start SL811H after EZ-USB is configured
695 // return;
696
697 //-------------------------------------------------------------------------
698 // Wait for SL811HS enumeration
699 //-------------------------------------------------------------------------
700 if(!bXXGFlags.bits.SLAVE_ENUMERATED) // only if slave is not configured
701 {
702 speed_detect(); // wait for an USB device to be inserted to
703 if(bXXGFlags.bits.SLAVE_FOUND) // the SL811HST host
704 {
705 if(EnumUsbDev(1)) // enumerate USB device, assign USB address = #1
706 {
707 bXXGFlags.bits.SLAVE_ENUMERATED = TRUE; // Set slave USB device enumerated flag
708 //uHub.bPortPresent[1] = 1; // set device addr #1 present
709 Set_ezDEV(1); // inform master of new attach/detach
710 }
711 }
712 }
713
714 //-------------------------------------------------------------------------
715 // SL811HS enumerated, proceed accordingly
716 //-------------------------------------------------------------------------
717 else
718 {
719 //OUTB &= ~ACTIVE_BLINK; // Turn on Active LED, indicate successful slave enum
720 if(Slave_Detach()) // test for slave device detach ???
721 return; // exit now.
722 //----------------------------------------------
723 // HUB DEVICE Polling (Addr #1, EndPt #1)
724 //----------------------------------------------
725 // Polling of Hub deivce Endpoint #1 for any Port Attachement
726 // for onboard HUB device, after enumeration, start to
727 // transfer IN token to check for ports attachment
728 // wLen = wPayload = 1 byte, always use USB address #1
729 // if return is TRUE, a data pkt was ACK, data in HubChange
730 // else is a NAK, no data was received
731 } // end of else
732
733 return ;
734 }
735 */
736 //*****************************************************************************************
737 // Slave_Detach
738 //*****************************************************************************************
739 /*
740 unsigned char Slave_Detach(void)
741 {
742 if( (SL811Read(IntStatus)&INSERT_REMOVE) || (SL811Read(IntStatus)&USB_RESET) )
743 { // Test USB detached?
744 bXXGFlags.bits.SLAVE_ENUMERATED = FALSE; // return to un-enumeration
745 //uHub.bPortPresent[1] = 0; // Device #1 not present
746
C51 COMPILER V7.20 SL811 12/13/2005 15:28:02 PAGE 15
747 Set_ezDEV(1); // inform master of slave detach
748 SL811Write(IntStatus,INT_CLEAR); // clear interrupt status
749 return TRUE; // exit now !!!
750 }
751
752 return FALSE;
753 }
754 */
755 //*****************************************************************************************
756 // Indicate to EZUSB's endpoint #2 IN of a new device attach/detach
757 //*****************************************************************************************
758 /*
759 void Set_ezDEV(BYTE chg)
760 {
761 //if( (dsPoll) && (!(IN2CS & bmEPBUSY)) )
762 //{
763 // IN2BUF[0] = chg; // Arm endpoint #2, inform EZUSB host of attach/detatch
764 // IN2BC = 1;
765 //}
766 }
767 */
768 ///////////////////////////////////////////////////////////////////////////////////////////
769 void SL811_Init(void)
770 {
771 1 //int i;
772 1
773 1 //for(i=0;i<MAX_DEV;i++)
774 1 //{
775 1 // uHub.bPortPresent[i] = 0;
776 1 // uHub.bPortNumber[i] = 0;
777 1 //}
778 1
779 1 //SL811H_DATA = 0x00;
780 1 //SL811H_ADDR = 0x00;
781 1 //pNumPort = 0x00;
782 1
783 1 //bXXGFlags.bits.FULL_SPEED = TRUE;
784 1 //HUB_DEVICE = FALSE;
785 1 bXXGFlags.bits.SLAVE_ONLINE = FALSE;
786 1 bXXGFlags.bits.SLAVE_FOUND = FALSE;
787 1 bXXGFlags.bits.SLAVE_REMOVED=FALSE;
788 1
789 1 bXXGFlags.bits.SLAVE_ENUMERATED = FALSE;
790 1 bXXGFlags.bits.SLAVE_IS_ATTACHED = FALSE;
791 1
792 1 //bXXGFlags.bits.BULK_OUT_DONE = FALSE;
793 1 //DESC_XFER = FALSE;
794 1 //DATA_XFER = FALSE;
795 1 //DATA_XFER_OUT = FALSE;
796 1 //DATA_INPROCESS = FALSE;
797 1 //pLS_HUB = FALSE;
798 1 //IN2BUF[0] = 0;
799 1
800 1 //dsPoll = 1; // poll downstream port conections
801 1
802 1 //----------------------------
803 1 // SL811H + EZUSB I/Os setup
804 1 //----------------------------
805 1 //PORTBCFG &= 0xAC; // Select i/o function for PB6, PB4, PB1, PB0
806 1 //OEB |= 0x43; // Set PB6(Output), PB4(Input), PB1(Output), PB0(Output)
807 1 //OUTB |= 0x43; // Default output high
808 1
C51 COMPILER V7.20 SL811 12/13/2005 15:28:02 PAGE 16
809 1 //PORTACFG &= 0x0F; // Select i/o function for PA7~PA4
810 1 //OEA |= 0xF0; // Set PA7~PA4(Output)
811 1 //OUTA |= 0xF0; // Default output high
812 1
813 1 //----------------------------
814 1 // Debug Monitor I/Os setup
815 1 //----------------------------
816 1 //PORTBCFG |= 0x0C; ⌨️ 快捷键说明
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