main.lst

USB的开发例子,用PIC18F4550实现.可以和电脑用USB控制连接.

HI-TECH Software PICC-18 Macro Assembler V8.35PL3
Serial number: HCPIC18-15668                           Wed Jun 15 13:32:20 2005

Licensed to: DESIGNREM LTD
     1                           	processor	18F4550
     2                           	opt	pw 80
     3                           	psect	__Z15668RS_,global,delta=1
     4                           	psect	text,global,reloc=2,class=CODE,delta=1
     5                           	psect	intsave_regs,global,class=BIGRAM,space=1,
      +                          delta=1
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    95                           
    96                           	psect	__Z15668RS_
    97  000004                     
    98  000004                     
    99                           
   100                           	psect	text
   101  0003D0                     _main:
   102  000000                     
   103                           ;main.c: 70: InitializeSystem();
   104  0003D0  D804               	call	_InitializeSystem	;wreg free
   105  0003D2                     l80:
   106                           ;main.c: 71: while(1)
   107                           ;main.c: 72: {
   108  0003D2  D80F               	call	_USBTasks	;wreg free
   109                           ;main.c: 74: ProcessIO();
   110  0003D4  ECE9  F005         	call	_ProcessIO	;wreg free
   111                           ;main.c: 75: }
   112  0003D8  D7FC               	goto	l80
   113                           ;main.c: 98: static void InitializeSystem(void)
   114                           ;main.c: 99: {
   115  0003DA                     _InitializeSystem:
   116  000000                     
   117                           ;main.c: 100: ADCON1 |= 0x0F;
   118  0003DA  0E0F               	movlw	15
   119  0003DC  12C1               	iorwf	4033,f,c
   120                           ;main.c: 110: {UCFG = 0x10|0x00|0x04|0x00; usb_d
      +                          evice_state = 0; usb_stat._byte = 0x00; usb_acti
      +                          ve_cfg = 0x00;};
   121  0003DE  0E14               	movlw	20
   122  0003E0  6E6F               	movwf	3951,c
   123  0003E2  0103               	movlb	_usb_device_state shr (0+8)
   124  0003E4  6B7B               	clrf	_usb_device_state& (0+255),b
   125  0003E6  0103               	movlb	_usb_stat shr (0+8)
   126  0003E8  6B7C               	clrf	_usb_stat& (0+255),b
   127  0003EA  0103               	movlb	_usb_active_cfg shr (0+8)
   128  0003EC  6B79               	clrf	_usb_active_cfg& (0+255),b
   129                           ;main.c: 112: UserInit();
   130  0003EE  EFCB  F005         	goto	_UserInit	;wreg free
   131                           ;main.c: 114: }
   132                           ;main.c: 131: void USBTasks(void)
   133                           ;main.c: 132: {
   134  0003F2                     _USBTasks:
   135  000000                     
   136                           ;main.c: 136: USBCheckBusStatus();
   137  0003F2  ECF4  F006         	call	_USBCheckBusStatus	;wreg free
   138                           ;main.c: 137: if(UCFGbits.UTEYE!=1)
   139  0003F6  AE6F               	btfss	3951,7,c	;volatile
   140                           ;main.c: 138: USBDriverService();
   141  0003F8  EC11  F007         	call	_USBDriverService	;wreg free
   142                           ;main.c: 141: CDCTxService();
   143  0003FC  EFD1  F003         	goto	_CDCTxService	;wreg free


HI-TECH Software PICC-18 Macro Assembler V8.35PL3
Symbol Table                                           Wed Jun 15 13:32:20 2005

                l80 03D2            _UserInit 0B96  
         _ProcessIO 0BD2                _main 03D0  
              start 0018    _InitializeSystem 03DA  
  _usb_device_state 037B            _usb_stat 037C  
 _USBCheckBusStatus 0DE8        _CDCTxService 07A2  
           __Lparam 00FC             __ramtop 0400  
    _usb_active_cfg 0379    _USBDriverService 0E22  
          _USBTasks 03F2