dscr.lst

这是一款usb开发板的固件驱动ezusb_firmware

A51 MACRO ASSEMBLER  DSCR                                                                 05/27/2006 13:40:47 PAGE     1


MACRO ASSEMBLER A51 V7.10
OBJECT MODULE PLACED IN dscr.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE dscr.a51 SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     ; dscr.a51
                       2     ; Contains the Device Descriptor, Configuration(Interface, HID and Endpoint) Descriptor,
                       3     ; and String descriptors.
                       4     ;
                       5     
                       6     
  0001                 7     DSCR_DEVICE      equ   1                        ;; Descriptor type: Device
  0002                 8     DSCR_CONFIG      equ   2                        ;; Descriptor type: Configuration
  0003                 9     DSCR_STRING      equ   3                        ;; Descriptor type: String
  0004                10     DSCR_INTRFC      equ   4                        ;; Descriptor type: Interface
  0005                11     DSCR_ENDPNT      equ   5                        ;; Descriptor type: Endpoint
  0006                12     DSCR_DEVQUAL     equ   6                        ;; Descriptor type: Device Qualifier
  0007                13     DSCR_OTHERSPEED  equ   7 
                      14     
                      15     
  0000                16     ET_CONTROL   equ   0                            ;; Endpoint type: Control
  0001                17     ET_ISO       equ   1                            ;; Endpoint type: Isochronous
  0002                18     ET_BULK      equ   2                            ;; Endpoint type: Bulk
  0003                19     ET_INT       equ   3                            ;; Endpoint type: Interrupt
                      20     
                      21     public  DeviceDscr,ConfigDscr,StringDscr,HIDDscr,ReportDscr,ReportDscrEnd,StringDscr0, Stri
                             ngDscr1, StringDscr2
                      22     public  UserDscr
                      23      
                      24     ;EZ USB FX2 control panel Vendor ID 0h, product ID 2131h
                      25     ; Lakeview Research VID is 0925h. //这个是供货商ID  
  0925                26     VID     equ     0925h
  7689                27     PID     equ     7689h
  0000                28     DID     equ     0000h
                      29     
                      30     ;cseg at 0x90
                      31     DSCR   SEGMENT   CODE PAGE
                      32     
                      33     ;;-----------------------------------------------------------------------------
                      34     ;; Global Variables
                      35     ;;-----------------------------------------------------------------------------
----                  36           rseg DSCR      ;; locate the descriptor table in on-part memory.
                      37     
0000                  38     DeviceDscr:     
0000 12               39             db      DeviceDscrEnd - DeviceDscr              ; Descriptor length
0001 01               40             db      DSCR_DEVICE                     ; Descriptor type = DEVICE
0002 0001             41             db      00h,01h                         ; spec version (BCD) is 2.00               
0004 000000           42             db      0,0,0                           ; HID class is defined in the interface des
                             criptor
0007 40               43             db      64                              ; maxPacketSize
0008 2509             44             db      LOW(VID),HIGH(VID)
000A 8976             45             db      LOW(PID),HIGH(PID)
000C 0000             46             db      LOW(DID),HIGH(DID)
000E 00               47             db       0                              ; Manufacturer string index
000F 00               48             db       0                              ; Product string index
0010 00               49             db       0                              ; Serial number string index
0011 01               50             db       1                              ; Number of configurations
0012                  51     DeviceDscrEnd:
                      52     
                      53     
                      54     
0012                  55     ConfigDscr:
0012 09               56             db      ConfigDscrEnd - ConfigDscr              ; Descriptor length
A51 MACRO ASSEMBLER  DSCR                                                                 05/27/2006 13:40:47 PAGE     2

0013 02               57             db      DSCR_CONFIG                     ; Descriptor type = OTHER SPEED CONFIG
0014 22               58             db      LOW(word_allignment-ConfigDscr) ; Total length (conf+interface+HID+EP's)
0015 00               59             db      HIGH(word_allignment-ConfigDscr)
0016 01               60             db      01h                             ; Number of interfaces
0017 01               61             db      01h                             ; Value to select this interface
0018 03               62             db      03h                             ; String index to describe this config
0019 A0               63             db      10100000b                       ; b7=1; b6=self-powered; b5=Remote WU
001A 00               64             db      0d                              ; bus power = 80 ma
001B                  65     ConfigDscrEnd:
                      66      
001B                  67     HIDIntrfcDscr:                          ; Interface Descriptor
001B 09               68             db      HIDIntrfcDscrEnd -HIDIntrfcDscr ; Descriptor length
001C 04               69             db      DSCR_INTRFC                     ; Descriptor type: INTERFACE
001D 0000             70             db      0,0                             ; Interface 0, Alternate setting 0
001F 01               71             db      01h                             ; Number of endpoints
0020 030000           72             db      03h,0,0                         ; Class(03)HID, no subclass or protocol
0023 00               73             db      0h                              ; string index for this interface
0024                  74     HIDIntrfcDscrEnd:
                      75     
                      76     
0024                  77     HIDDscr:
0024 09               78             db      HIDDscrEnd -HIDDscr     ; Descriptor length
0025 21               79             db      21h                             ; Descriptor type - HID
0026 1001             80             db      10h,01h                         ; HID Spec version 1.10
0028 00               81             db      0                               ; country code(none)
0029 01               82             db      01h                             ; number of HID class descriptors
002A 22               83             db      22h                             ; class descriptor type: REPORT
002B 3F               84             db      LOW(ReportDscrEnd - ReportDscr)
002C 00               85             db      HIGH(ReportDscrEnd - ReportDscr)
002D                  86     HIDDscrEnd:
                      87     
002D                  88     HIDEpInDscr:    
002D 07               89             db      HIDEpInDscrEnd -HIDEpInDscr     ; Descriptor length
002E 05               90             db      DSCR_ENDPNT                     ; Descriptor type : ENDPOINT
002F 81               91             db      81h                             ; IN-1
0030 03               92             db      ET_INT                          ; Type: INTERRUPT
0031 4000             93             db      40h,0                           ; maxPacketSize = 64
0033 10               94             db      10h                             ; polling interval is 50 msec
0034                  95     HIDEpInDscrEnd:
                      96     
                      97     
0034                  98     word_allignment:
                      99     
0034 00              100             db  00h         ;Word alignment
                     101     
                     102     ;; usbhidio code start
0035                 103     ReportDscr:
0035 0501            104             db 05h, 01h     ; Usage Page (Generic Desktop)
0037 0906            105             db 09h, 06h     ; Usage (Keyboard)
0039 A101            106             db 0A1h, 01h     ; Collection (Application)
003B 0507            107             db 05h, 07h     ;       Usage Page (Key codes)
003D 19E0            108             db 19h, 0E0h    ;       Usage minimum (234)
003F 29E7            109             db 29h, 0E7h    ;       Usage maximum (231)
0041 1500            110             db 15h, 00h     ;       Logical minimum (0)