rs_usb.lst

Example codes for ADuC842 CPU family

C51 COMPILER V7.07   RS_USB                                                                03/31/2004 00:03:19 PAGE 1   


C51 COMPILER V7.07, COMPILATION OF MODULE RS_USB
OBJECT MODULE PLACED IN rs_usb.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE rs_usb.c WARNINGLEVEL(0) OPTIMIZE(0,SPEED) REGFILE(.\usb.ORC) BROWSE DEBUG 
                    -OBJECTEXTEND SRC(.\rs_usb.SRC)

stmt level    source

   1          #include "rs_usb.h"
   2          
   3          
   4          
   5          void DelayUs(unsigned char count) {
   6   1              #pragma asm
   7   1      Jump_DelayUs:
   8   1                      DJNZ R7,Jump_DelayUs
   9   1              #pragma endasm
  10   1      }
  11          
  12          
  13          
  14          signed int ReadByte(void) {
  15   1              #pragma asm
  16   1                      CLR DSR_USB
  17   1                      MOV R7,#0xFF
  18   1                      MOV R6,#0x08
  19   1      Wait_Start:
  20   1                      MOV C,RxD_USB
  21   1                      JNC Read_0
  22   1                      DJNZ R7,Wait_Start
  23   1                      SETB DSR_USB
  24   1                      MOV R6,#0xFF
  25   1                      MOV R7,#0xFF
  26   1                      JMP Read_End
  27   1      Read_0:
  28   1                      CLR A   
  29   1      Read_1:
  30   1                      NOP     
  31   1                      NOP     
  32   1                      NOP     
  33   1                      MOV C,RxD_USB
  34   1                      RLC     A
  35   1                      DJNZ R6,Read_1
  36   1                      MOV R6,#0x08
  37   1                      SETB DSR_USB
  38   1      Read_2:
  39   1                      RRC A
  40   1                      XCH A,R7
  41   1                      RLC A
  42   1                      XCH A,R7
  43   1                      DJNZ R6,Read_2
  44   1                      MOV R6,#0x00
  45   1      Read_End:
  46   1              #pragma endasm
  47   1      }
  48          
  49          
  50          
  51          void SendByte(unsigned char data_byte) {
  52   1              #pragma asm
  53   1                      CLR TxD_USB
  54   1                      MOV     C,EA
C51 COMPILER V7.07   RS_USB                                                                03/31/2004 00:03:19 PAGE 2   

  55   1                      RLC     A
  56   1                      MOV     R5,A
  57   1                      CLR EA
  58   1                      MOV R6,#0x08
  59   1      Jump:
  60   1                      MOV A,R7  //data_byte
  61   1                      RRC A
  62   1                      MOV R7,A
  63   1                      MOV (0xB0.4),C
  64   1                      NOP
  65   1                      DJNZ R6,Jump
  66   1                      SETB TxD_USB
  67   1                      MOV A,R5
  68   1                      RRC     A
  69   1                      MOV EA,C
  70   1              #pragma endasm
  71   1      }
  72          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    154    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)