?? lcp.lst
字號:
02B6 E0 =1 569 MOVX A, @DPTR
02B7 DFFA =1 570 DJNZ R7, CopySD
=1 571 ; Fixup complete, get back to the program flow
02B9 D0E0 =1 572 POP ACC ; Get rid of the return address
02BB D0E0 =1 573 POP ACC
02BD E5F0 =1 574 MOV A, B ; Retrieve byte count
02BF 21A5 =1 575 JMP SendEP0InBuffer
576 $INCLUDE(DTables.A51)
=1 577 ; This module declares the descriptors
=1 578 ;
=1 579 ; This example has one Device Descriptor with:
=1 580 ; One Configuration - single IN port and single OUT port
=1 581 ; One Interface - there is only one method of accessing the ports
=1 582 ; One HID Descriptor - to make PC host software simpler
A51 MACRO ASSEMBLER LCP 25/07/99 18:37:13 PAGE 10
=1 583 ; No Endpoint Descriptors - HID Output Reports use EP0
=1 584 ; One Report Descriptor - six bytes OUT
=1 585 ; Multiple Sting Descriptors - to aid the user
=1 586 ;
---- =1 587 CSEG
02C1 =1 588 DeviceDescriptor:
02C1 1201 =1 589 DB 18, 1 ; Length, Type
02C3 0101 =1 590 DW 101H ; USB Rev 1.1
02C5 000000 =1 591 DB 0, 0, 0 ; Class, Subclass and Protocol
02C8 40 =1 592 DB 64 ; EP0 size
02C9 4242 =1 593 DW 4242H, 1, 1 ; Vendor ID, Product ID and Version
02CB 0001
02CD 0001
02CF 010200 =1 594 DB 1, 2, 0 ; Manufacturer, Product & Serial# Names
02D2 01 =1 595 DB 1 ; #Configs
02D3 =1 596 ConfigurationDescriptor:
02D3 0902 =1 597 DB 9, 2 ; Length, Type
02D5 1B00 =1 598 DB LOW(ConfigLength), HIGH(ConfigLength)
02D7 010100 =1 599 DB 1, 1, 0 ; #Interfaces, Configuration#, Config. Name
02DA 80 =1 600 DB 10000000b ; Attributes = Bus Powered
02DB 32 =1 601 DB 50 ; Max. Power is 50x2 = 100mA
02DC =1 602 InterfaceDescriptor:
02DC 0904 =1 603 DB 9, 4 ; Length, Type
02DE 000000 =1 604 DB 0, 0, 0 ; No alternate setting, HID OUTPUT uses EP0
02E1 03 =1 605 DB 3 ; Class = Human Interface Device
02E2 0000 =1 606 DB 0, 0 ; Subclass and Protocol
02E4 00 =1 607 DB 0 ; Interface Name
02E5 =1 608 HIDDescriptor:
02E5 0921 =1 609 DB 9, 21H ; Length, Type
02E7 0001 =1 610 DB 0, 1 ; HID Class Specification compliance
02E9 00 =1 611 DB 0 ; Country localization (=none)
02EA 01 =1 612 DB 1 ; Number of descriptors to follow
02EB 22 =1 613 DB 22H ; And it's a Report descriptor
02EC 1700 =1 614 DB LOW(ReportLength), HIGH(ReportLength)
001B =1 615 ConfigLength EQU $ - ConfigurationDescriptor
=1 616
02EE =1 617 ReportDescriptor: ; Generated with HID Tool, copied to here
02EE 0600FF =1 618 DB 6, 0, 0FFH ; Usage_Page (Vendor Defined)
02F1 0901 =1 619 DB 9, 1 ; Usage (I/O Device)
02F3 A101 =1 620 DB 0A1H, 1 ; Collection (Application)
02F5 1901 =1 621 DB 19H, 1 ; Usage_Minimum
02F7 2902 =1 622 DB 29H, 2 ; Usage_Maximum
02F9 1500 =1 623 DB 15H, 0 ; Logical_Minimum (0)
02FB 26FF00 =1 624 DB 26H, 255, 0 ; Logical_Maximum (255)
02FE 7508 =1 625 DB 75H, 8 ; Report_Size (8)
0300 9506 =1 626 DB 95H, 6 ; Report_Count (6) = Lighting Values
0302 9102 =1 627 DB 91H, 2 ; Output (Data,Var,Abs)
0304 C0 =1 628 DB 0C0H ; End_Collection
0017 =1 629 ReportLength EQU $-ReportDescriptor
=1 630
0305 =1 631 String0: ; Declare the UNICODE strings
0305 04030904 =1 632 DB 4, 3, 9, 4 ; Only English language strings supported
0309 =1 633 String1: ; Manufacturer
0309 2C03 =1 634 DB (String2-String1),3 ; Length, Type
030B 55005300 =1 635 DB "U",0,"S",0,"B",0," ",0,"D",0,"e",0,"s",0,"i",0,"g",0,"n",0," ", 0
030F 42002000
0313 44006500
0317 73006900
031B 67006E00
031F 2000
0321 42007900 =1 636 DB "B",0,"y",0," ",0,"E",0,"x",0,"a",0,"m",0,"p",0,"l",0,"e",0
0325 20004500
0329 78006100
032D 6D007000
0331 6C006500
0335 =1 637 String2: ; Product Name
A51 MACRO ASSEMBLER LCP 25/07/99 18:37:13 PAGE 11
0335 1E03 =1 638 DB (EndOfDescriptors-String2),3
0337 4C006900 =1 639 DB "L",0,"i",0,"g",0,"h",0,"t",0,"i",0,"n",0,"g",0
033B 67006800
033F 74006900
0343 6E006700
0347 20005000 =1 640 DB " ",0,"P",0,"a",0,"n",0,"e",0,"l",0
034B 61006E00
034F 65006C00
0353 =1 641 EndOfDescriptors:
0353 0000 =1 642 DW 0 ; Backstop for String Descriptors
=1 643
=1 644
=1 645
646 $INCLUDE(Main.A51)
=1 647 ; This module initializes the microcontroller then executes MAIN forever
=1 648 ;
=1 649
0355 =1 650 Reset:
0355 7581EB =1 651 MOV SP, #235 ; Initialize the Stack at top of internal memory
0358 75927F =1 652 MOV PageReg, #7FH ; Needed to use MOVX @Ri
=1 653
035B 78D6 =1 654 MOV R0, #LOW(USBControl) ; Simulate a disconnect
035D E2 =1 655 MOVX A, @R0
035E 54F3 =1 656 ANL A, #11110011b ; Clear DISCON, DISCOE
0360 F2 =1 657 MOVX @R0, A
0361 1203AB =1 658 CALL Wait100msec ; Give the host time to react
0364 E2 =1 659 MOVX A, @R0 ; Reconnect with this new identity
0365 4406 =1 660 ORL A, #00000110b ; Set DISCOE to enable pullup resistor
0367 F2 =1 661 MOVX @R0, A ; Set RENUM so that 8051 handles USB requests
0368 E4 =1 662 CLR A
0369 F520 =1 663 MOV FLAGS, A ; Start in Default state
036B =1 664 InitializeIOSystem: ; This example uses PortA an OUT and
=1 665 ; the lower 4 bits of PortC as IN
=1 666 ; Assume a pre-existing configuration (ie Dscope)
036B 7893 =1 667 MOV R0, #LOW(PortA_Config) ; PageReg = 7F = HIGH(PortA_Config)
036D E4 =1 668 CLR A
036E F2 =1 669 MOVX @R0, A ; No alternate functions
036F 799C =1 670 MOV R1, #LOW(PortA_OE)
0371 F4 =1 671 CPL A ; = 0FFH
0372 F3 =1 672 MOVX @R1, A ; Enable PortA for Output
0373 7895 =1 673 MOV R0, #LOW(PortC_Config) ; PageReg = 7F = HIGH(PortC_Config)
0375 799E =1 674 MOV R1, #LOW(PortC_OE)
0377 E2 =1 675 MOVX A, @R0 ; Get current configuration
0378 54F0 =1 676 ANL A, #0F0H
037A F2 =1 677 MOVX @R0, A ; No alternate functions on lower nibble
037B E3 =1 678 MOVX A, @R1 ; Get current configuration
037C 54F0 =1 679 ANL A, #0F0H
037E F3 =1 680 MOVX @R1, A ; Enable PortC_Bits[3:0] for Input
=1 681 ; Need to initialize Timer 0 to generate 40 microsecond interrupts
037F 758C50 =1 682 MOV Timer0High, #80 ; Reload Value
0382 E589 =1 683 MOV A, TimerMode ; Set up Timer 0 without changing Timer 1
0384 54F0 =1 684 ANL A, #0F0H ; Clear lower 4 bits
0386 D2E1 =1 685 SETB ACC.1 ; Set No Gate, Time, Mode 2
0388 F589 =1 686 MOV TimerMode, A
038A E588 =1 687 MOV A, TimerControl
038C 4430 =1 688 ORL A, #00110000b ; Turn on Timer 0
038E F588 =1 689 MOV TimerControl, A
=1 690
0390 =1 691 InitializeInterruptSystem: ; First initialize the USB level
0390 78AC =1 692 MOV R0, #LOW(IN07IEN)
0392 F2 =1 693 MOVX @R0, A ; Disable interrupts from IN Endpoints 0-7
0393 08 =1 694 INC R0
0394 F2 =1 695 MOVX @R0, A ; Disable interrupts from OUT Endpoints 0-7
0395 08 =1 696 INC R0
0396 7401 =1 697 MOV A, #00000001b
0398 F2 =1 698 MOVX @R0, A ; Enable (Resume, Suspend) and SUDAV INTs
A51 MACRO ASSEMBLER LCP 25/07/99 18:37:13 PAGE 12
0399 08 =1 699 INC R0
039A 7401 =1 700 MOV A, #00000001b
039C F2 =1 701 MOVX @R0, A ; Enable Auto Vectoring for USB interrupts
039D 78AA =1 702 MOV R0, #LOW(OUT07IRQ)
039F 74FF =1 703 MOV A, #0FFH
03A1 F2 =1 704 MOVX @R0, A ; Clear out any pending interrupts
=1 705 ; Now enable the main level
03A2 75E801 =1 706 MOV EIE, #00000001b ; Enable INT2 = USB Interrupt (only)
03A5 75A8C2 =1 707 MOV EI, #11000010b ; Enable interrupt subsystem: Timer 0 overflow
=1 708 ; (and Ser1 for Dscope)
=1 709
=1 710 ; Initialization Complete.
=1 711 ;
03A8 =1 712 MAIN:
03A8 00 =1 713 NOP ; Not much of a main loop for this example
03A9 80FD =1 714 JMP MAIN ; All actions are initiated by interrupts
=1 715 ; We are a slave, we wait to be told what to do
=1 716
03AB =1 717 Wait100msec:
03AB 754064 =1 718 MOV Temp, #100
03AE =1 719 Wait1msec: ; A delay loop
03AE 90FB50 =1 720 MOV DPTR, #-1200
03B1 A3 =1 721 More: INC DPTR ; 3 cycles
03B2 E582 =1 722 MOV A, DPL ; + 2
03B4 4583 =1 723 ORL A, DPH ; + 2
03B6 70F9 =1 724 JNZ More ; + 3 = 10 cycles x 1200 = 1msec
03B8 D540F3 =1 725 DJNZ Temp, Wait1msec
03BB 22 =1 726 RET
=1 727
03BC =1 728 ProcessOutputReport: ; A Report has just been received
=1 729 ; The report is six bytes long
=1 730 ; Save the values for the INTERRUPT service routine
03BC 7847 =1 731 MOV R0, #LightValues ; Initialize the pointers to be used
03BE 907EC0 =1 732 MOV DPTR, #EP0OutBuffer ; Point to the Report
03C1 7F06 =1 733 MOV R7, #6
03C3 E0 =1 734 CopyOR: MOVX A, @DPTR ; Retrieve Report Byte 1
03C4 F6 =1 735 MOV @R0, A
03C5 A3 =1 736 INC DPTR
03C6 08 =1 737 INC R0
03C7 DFFA =1 738 DJNZ R7, CopyOR
03C9 22 =1 739 RET
=1 740
03CA =1 741 CreateInputReport:
=1 742 ; Not used in this example
=1 743
=1 744
745 $INCLUDE(Timer.A51)
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