dscr.lst

some examples of LCD dit display via USB

A51 MACRO ASSEMBLER  DSCR                                                                 04/03/2003 11:06:28 PAGE     1


MACRO ASSEMBLER A51 V6.14
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     
                       2     
  0001                 3     DSCR_DEVICE     equ     1       ;; Descriptor type: Device
  0002                 4     DSCR_CONFIG     equ     2       ;; Descriptor type: Configuration
  0003                 5     DSCR_STRING     equ     3       ;; Descriptor type: String
  0004                 6     DSCR_INTRFC     equ     4       ;; Descriptor type: Interface
  0005                 7     DSCR_ENDPNT     equ     5       ;; Descriptor type: Endpoint
                       8     
  0000                 9     ET_CONTROL      equ     0       ;; Endpoint type: Control
  0001                10     ET_ISO          equ     1       ;; Endpoint type: Isochronous
  0002                11     ET_BULK         equ     2       ;; Endpoint type: Bulk
  0003                12     ET_INT          equ     3       ;; Endpoint type: Interrupt
                      13     
                      14     public          DeviceDscr, ConfigDscr, StringDscr, UserDscr, ReportDscr, ReportDscrEnd
                      15     
                      16     DSCR    SEGMENT CODE
                      17     
                      18     ;;-----------------------------------------------------------------------------
                      19     ;; Global Variables
                      20     ;;-----------------------------------------------------------------------------
----                  21                     rseg DSCR               ;; locate the descriptor table in on-part memory.
                      22     
0000 12               23     DeviceDscr:     db      deviceDscrEnd-DeviceDscr                ;; Descriptor length
0001 01               24                     db      DSCR_DEVICE     ;; Decriptor type
0002 1001             25                     db      10H, 01H                ;; Specification Version (BCD)
0004 00               26                     db      00H             ;; Device class
0005 00               27                     db      00H             ;; Device sub-class
0006 00               28                     db      00H             ;; Device sub-sub-class
0007 40               29                     db      64              ;; Maximum packet size
0008 3412             30                     db      34H, 12H        ;; Vendor ID   ;;************************
000A 7856             31                     db      78H, 56H        ;; Product ID  ;;************************
000C 0001             32                     dw      0001H           ;; Product version ID
000E 01               33                     db      1               ;; Manufacturer string index
000F 02               34                     db      2               ;; Product string index
0010 00               35                     db      0               ;; Serial number string index
0011 01               36                     db      1               ;; Numder of configurations
0012                  37     deviceDscrEnd:
                      38     
0012 09               39     ConfigDscr:     db      ConfigDscrEnd-ConfigDscr                ;; Descriptor length
0013 02               40                     db      DSCR_CONFIG     ;; Descriptor type
0014 29               41                     db      EPAllDscrEnd-ConfigDscr ;; Configuration + End Points length (LSB)
0015 00               42                     db      00              ;; Configuration length (MSB)
0016 01               43                     db      1               ;; Number of interfaces
0017 01               44                     db      1               ;; Interface number
0018 00               45                     db      0               ;; Configuration string
0019 A0               46                     db      10100000b       ;; Attributes (b7 - buspwr, b6 - selfpwr, b5 - rwu)
001A 19               47                     db      25              ;; Power requirement (div 2 ma)
001B                  48     ConfigDscrEnd:
                      49     
001B                  50     IntrfcDscr:
001B 09               51                     db      IntrfcDscrEnd-IntrfcDscr                ;; Descriptor length
001C 04               52                     db      DSCR_INTRFC     ;; Descriptor type
001D 00               53                     db      0               ;; Zero-based index of this interface
001E 00               54                     db      0               ;; Alternate setting
001F 02               55                     db      2               ;; Number of end points 
0020 03               56                     db      03H             ;; Interface class
0021 00               57                     db      00H             ;; Interface sub class
0022 00               58                     db      00H             ;; Interface sub sub class
A51 MACRO ASSEMBLER  DSCR                                                                 04/03/2003 11:06:28 PAGE     2

0023 00               59                     db      0               ;; Interface descriptor string index
0024                  60     IntrfcDscrEnd:
                      61     
0024                  62     HIDDscr:
0024 09               63                     db      9               ;; Length
0025 21               64                     db      21H             ;; Type
0026 1001             65                     db      10H, 01H        ;; HID class spec.# compliance (0110 = 1.1)
0028 00               66                     db      0               ;; Country localization (0=none)
0029 01               67                     db      1               ;; Number of descriptors to follow (excluding endpo
                             int)
002A 22               68                     db      22H             ;; Descriptor type to follow (report)
002B 3400             69                     db      ReportDscrEnd - ReportDscr, 0   ;; Report descriptor length
                      70                     
002D                  71     HIDDscrEnd:
                      72     
002D                  73     EpO2Dscr:
002D 07               74                     db      EpO2DscrEnd-EpO2Dscr            ;; Descriptor length
002E 05               75                     db      DSCR_ENDPNT     ;; Descriptor type
002F 02               76                     db      00000010b       ;; Endpoint number, and direction
0030 03               77                     db      ET_INT          ;; Endpoint type
0031 40               78                     db      40H             ;; Maximun packet size (LSB)
0032 00               79                     db      00H             ;; Max packect size (MSB)
0033 64               80                     db      100             ;; Polling interval
0034                  81     EpO2DscrEnd:
                      82                     
0034                  83     EpI1Dscr:
0034 07               84                     db      EpI1DscrEnd-EpI1Dscr            ;; Descriptor length
0035 05               85                     db      DSCR_ENDPNT     ;; Descriptor type
0036 81               86                     db      10000001b       ;; Endpoint number, and direction
0037 03               87                     db      ET_INT          ;; Endpoint type
0038 40               88                     db      40H             ;; Maximun packet size (LSB)
0039 00               89                     db      00H             ;; Max packect size (MSB)
003A 64               90                     db      100             ;; Polling interval
003B                  91     EpI1DscrEnd:
                      92     
003B                  93     EpAllDscrEnd:
                      94     
003B                  95     ReportDscr:
003B 06A0FF           96                     db      06H, 0A0H, 0FFH ;; Usage Page (FFA0H = vendor defined)
003E 0901             97                     db      09H, 01H        ;; Usage (Vendor defined)
0040 A101             98                     db      0A1H, 01H       ;; Collection (Application)
0042 0902             99                     db      09H, 02H        ;; Usage (vendor defined)
0044 A100            100                     db      0A1H, 00H       ;; Collection (Physical)
0046 06A1FF          101                     db      06H, 0A1H, 0FFH ;; Usage Page (vendor defined)
                     102     
                     103     ;; The input report
0049 0903            104                     db      09H, 03H        ;; Usage (vendor defined)
004B 0904            105                     db      09H, 04H        ;; Usage (vendor defined)
004D 1580            106                     db      15H, 80H        ;; Logical minimum (80H = -128)
004F 257F            107                     db      25H, 7FH        ;; Logical maximum (7FH = 127)
0051 3500            108                     db      35H, 00H        ;; Physical minimum (0)
0053 45FF            109                     db      45H, 0FFH       ;; Physical maximum (255)
0055 7508            110                     db      75H, 08H        ;; Report size (8 bits)
0057 9508            111                     db      95H, 08H        ;; Report count (2 fields)        ;;***************
                             *
0059 8102            112                     db      81H, 02H        ;; Input (Data, Variable, Absolute)
                     113     ;; The output report