uart0.lst

飞利浦公司lpc2148串口测试源代码 飞利浦公司lpc2148串口测试源代码

ARM COMPILER V2.42,  Uart0                                                                 06/01/06  13:37:33  PAGE 1   


ARM COMPILER V2.42, COMPILATION OF MODULE Uart0
OBJECT MODULE PLACED IN .\Obj\Uart0.obj
COMPILER INVOKED BY: C:\Keil\ARM\BIN\CA.exe Uart0.c THUMB BROWSE DEBUG PRINT(.\LST\UART0.LST) TABS(4) OBJECT(.\Obj\Uart0
                    -.obj) 

stmt  level    source

    1          
    2          #include <LPC214X.H>
    3          
    4          
    5          /****************************************************************************
    6          发送一个字节
    7          ****************************************************************************/
    8          void  Sent_Byte(unsigned char data)
    9          {  
   10   1          U0THR = data;                   // 发送数据
   11   1      
   12   1         while( (U0LSR&0x40)==0 );        // 等待数据发送完毕
   13   1      }
   14          
   15          
   16          /****************************************************************************
   17          发送一串字符
   18          ****************************************************************************/
   19          void  Sent_Str(unsigned char const *str)
   20          {  while(1)
   21   1         {  if( *str == '\0' ) break;
   22   2            Sent_Byte(*str++);        // 发送数据
   23   2         }
   24   1      }
   25          
   26          /****************************************************************************
   27          接收一个字节
   28          ****************************************************************************/
   29          
   30          int Get_Byte (void)  {                    /* Read character from Serial Port   */
   31   1      
   32   1        while (!(U0LSR & 0x01));
   33   1      
   34   1        return (U0RBR);
   35   1      }
ARM COMPILER V2.42,  Uart0                                                                 06/01/06  13:37:33  PAGE 2   

ASSEMBLY LISTING OF GENERATED OBJECT CODE



*** PUBLICS:
 PUBLIC         Sent_Byte?T
 PUBLIC         Sent_Str?T
 PUBLIC         Get_Byte?T



*** CODE SEGMENT '?PR?Sent_Byte?T?Uart0':
    8: void  Sent_Byte(unsigned char data)
 00000000  1C02      MOV         R2,R0 ; data
 00000002  ---- Variable 'data' assigned to Register 'R2' ----
   10:     U0THR = data;                   // 发送数据
 00000002  1C11      MOV         R1,R2 ; data
 00000004  4800      LDR         R0,=0xE000C000
 00000006  7001      STRB        R1,[R0,#0x0]
   12:    while( (U0LSR&0x40)==0 );        // 等待数据发送完毕
 00000008          L_1:
 00000008  4800      LDR         R0,=0xE000C014
 0000000A  7800      LDRB        R0,[R0,#0x0]
 0000000C  2140      MOV         R1,#0x40
 0000000E  4208      TST         R0,R1
 00000010  D0FA      BEQ         L_1  ; T=0x00000008
   13: }
 00000012  4770      BX          R14
 00000014          ENDP ; 'Sent_Byte?T'


*** CODE SEGMENT '?PR?Sent_Str?T?Uart0':
   19: void  Sent_Str(unsigned char const *str)
 00000000  B500      PUSH        {LR}
 00000002  1C03      MOV         R3,R0 ; str
 00000004  ---- Variable 'str' assigned to Register 'R3' ----
   20: {  while(1)
 00000004          L_7:
   21:    {  if( *str == '\0' ) break;
 00000004  1C18      MOV         R0,R3 ; str
 00000006  7800      LDRB        R0,[R0,#0x0] ; str
 00000008  2800      CMP         R0,#0x0
 0000000A  D005      BEQ         L_6  ; T=0x00000018
   22:       Sent_Byte(*str++);        // 发送数据
 0000000C  1C18      MOV         R0,R3 ; str
 0000000E  3301      ADD         R3,#0x1
 00000010  7800      LDRB        R0,[R0,#0x0] ; str
 00000012  F7FF      BL          Sent_Byte?T  ; T=0x0001  (1)
 00000014  FFF5      BL          Sent_Byte?T  ; T=0x0001  (2)
   23:    }
 00000016  E7F5      B           L_7  ; T=0x00000004
 00000018          L_6:
   24: }
 00000018  BC08      POP         {R3}
 0000001A  4718      BX          R3
 0000001C          ENDP ; 'Sent_Str?T'


*** CODE SEGMENT '?PR?Get_Byte?T?Uart0':
   32:   while (!(U0LSR & 0x01));
 00000000          L_10:
 00000000  4800      LDR         R0,=0xE000C014
 00000002  7800      LDRB        R0,[R0,#0x0]
 00000004  2101      MOV         R1,#0x1
 00000006  4208      TST         R0,R1
 00000008  D0FA      BEQ         L_10  ; T=0x00000000
   34:   return (U0RBR);
 0000000A  4800      LDR         R0,=0xE000C000
 0000000C  7800      LDRB        R0,[R0,#0x0]
 0000000E  4770      BX          R14
 00000010          ENDP ; 'Get_Byte?T'



ARM COMPILER V2.42,  Uart0                                                                 06/01/06  13:37:33  PAGE 3   

Module Information          Static
----------------------------------
  code size            =    ------
  data size            =    ------
  const size           =    ------
End of Module Information.


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