main.lst

一个基于LPC21平台的CAN总线接收与发送实现源代码.

ARM COMPILER V2.00f,  main                                                                 20/02/05  14:46:36  PAGE 1   


ARM COMPILER V2.00f, COMPILATION OF MODULE main
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: C:\Keil\ARM\BIN\CA.exe main.c THUMB OPTIMIZE(7,SPEED) BROWSE DEBUG TABS(4) 

stmt  level    source

    1          /************************************************************/
    2          /* PROJECT NAME: CANRX                                      */
    3          /* Project:      LPC2100 Training course                    */
    4          /* Engineer:     T Martin        [e-mail]        */
    5          /* Filename:     main.c                                     */
    6          /* Language:     C                                          */
    7          /* Compiler:     Keil ARM   V1.3                            */
    8          /* Assembler:                                               */
    9          /*                                                          */
   10          /************************************************************/
   11          /* COPYRIGHT: Hitex UK Ltd      2004                        */
   12          /* LICENSE:   THIS VERSION CREATED FOR FREE DISTRIBUTION    */
   13          /************************************************************/
   14          /* Function:    CAN receive example                         */
   15          /*                                                          */
   16          /* Example                                                  */
   17          /*                                                          */
   18          /* Demonstrates the use of the Standard message acceptance  */
   19          /* and receiving a CAN packet                               */
   20          /*                                                          */
   21          /* Oscillator frequency 12.000 Mhz                          */
   22          /* Target board Keil MCB21000                               */
   23          /************************************************************/
   24          
   25          
   26          #include <LPC21xx.H> 
   27          extern void init_CAN2(void);
   28          extern void TX_CAN2(void);
   29          void CAN1IRQ (void)__irq;                               //Declare the RX IRQ
   30          
   31          
   32          unsigned  int StandardFilter[2]         _at_ 0xE0038000;    //Declare the standard acceptance filter table 
   33          unsigned  int GroupStdFilter[2]         _at_ 0xE0038008;
   34          unsigned  int IndividualExtFilter[2]    _at_ 0xE0038010;
   35          unsigned  int GroupExtFilter[2]         _at_ 0xE0038018;
   36          
   37          
   38          int main(void)
   39          {
   40   1      init_CAN2();
   41   1      
   42   1      VPBDIV                  =   0x00000001;                     //Set PClk to 60Mhz
   43   1      IODIR1                  =   0x00FF0000;                     // set all ports to output
   44   1      PINSEL1                 |=  0x00040000;                     //Enable Pin 0.25 as CAN1 RX
   45   1      C1MOD                   =   0x00000001;                     //Set CAN controller into reset
   46   1      C1BTR                   =   0x001C001D;                     //Set bit timing to 125k
   47   1      C1IER                   =   0x00000001;                     //Enable the Receive interrupt 
   48   1      VICVectCntl0            =   0x0000003A;                     //select a priority slot for a given interrupt
   49   1      VICVectAddr0            =   (unsigned)CAN1IRQ;              //pass the address of the IRQ into the VIC slot
   50   1      VICIntEnable            =   0x04000000;                     //enable interrupt
   51   1      AFMR                    =   0x00000001;                     //Disable the Acceptance filters to allow setup of the table
   52   1      StandardFilter[0]       =   0x20012002;
   53   1      StandardFilter[1]       =   0x20032004;
   54   1      GroupStdFilter[0]       =   0x2009200F;
   55   1      GroupStdFilter[1]       =   0x20112020;
   56   1      IndividualExtFilter[0]  =   0x40010000;
   57   1      IndividualExtFilter[1]  =   0x40020000;
   58   1      GroupExtFilter[0]       =   0x40030000;
   59   1      GroupExtFilter[2]       =   0x40040000;
ARM COMPILER V2.00f,  main                                                                 20/02/05  14:46:36  PAGE 2   

   60   1      SFF_sa                  =   0x00000000;                     //Set start address of Standard table
   61   1      SFF_GRP_sa              =   0x00000010;                     //Set start address of Standard group table
   62   1      EFF_sa                  =   0x00000018;                     //Set start address of Extended table
   63   1      EFF_GRP_sa              =   0x00000020;                     //Set start address of Extended group table
   64   1      ENDofTable              =   0x00000028;                     //Set end of table address
   65   1      AFMR                    =   0x00000000;                     //Enable Acceptance filters
   66   1      
   67   1      C1MOD                   =   0x00000000;                     //Release CAN controller
   68   1      
   69   1      while(1)
   70   1      {
   71   2      TX_CAN2();
   72   2      }
   73   1      }
   74          
   75          void CAN1IRQ (void)   __irq
   76          {
   77   1      
   78   1      IOCLR1                  =   ~C1RDA<<8;                          //clear output pins
   79   1      IOSET1                  =   C1RDA<<8;                           //set output pins
   80   1      C1CMR                   =   0x00000004;                     //release the recieve buffer
   81   1      VICVectAddr             =   0x00000000;                     //Signal the end of interrupt
   82   1      }
   83          
ARM COMPILER V2.00f,  main                                                                 20/02/05  14:46:36  PAGE 3   

ASSEMBLY LISTING OF GENERATED OBJECT CODE



*** EXTERNALS:
 EXTERN CODE16 (init_CAN2?T)
 EXTERN CODE16 (TX_CAN2?T)
 EXTERN NUMBER (__startup)



*** PUBLICS:
 PUBLIC         CAN1IRQ?A
 PUBLIC         main
 PUBLIC         StandardFilter
 PUBLIC         GroupStdFilter
 PUBLIC         IndividualExtFilter
 PUBLIC         GroupExtFilter



*** DATA SEGMENT '?DT0?AT_E0038000_?1?main':
 E0038000          StandardFilter:
 E0038000            DS          8

*** DATA SEGMENT '?DT0?AT_E0038008_?2?main':
 E0038008          GroupStdFilter:
 E0038008            DS          8

*** DATA SEGMENT '?DT0?AT_E0038010_?3?main':
 E0038010          IndividualExtFilter:
 E0038010            DS          8

*** DATA SEGMENT '?DT0?AT_E0038018_?4?main':
 E0038018          GroupExtFilter:
 E0038018            DS          8



*** CODE SEGMENT '?PR?main?main':
   38: int main(void)
 00000000  B500      PUSH        {LR}
   40: init_CAN2();
 00000002  F7FF      BL          init_CAN2?T  ; T=0x0001  (1)
 00000004  FFFD      BL          init_CAN2?T  ; T=0x0001  (2)
   42: VPBDIV                     =   0x00000001;                     //Set PClk to 60Mhz
 00000008  2101      MOV         R1,#0x1
 0000000A  4800      LDR         R0,=0xE01FC100
 0000000C  7001      STRB        R1,[R0,#0x0]
   43: IODIR1                     =   0x00FF0000;                     // set all ports to output
 0000000E  4800      LDR         R1,=0xFF0000
 00000010  4800      LDR         R0,=0xE0028018
 00000012  6001      STR         R1,[R0,#0x0]
   44: PINSEL1                 |=  0x00040000;                     //Enable Pin 0.25 as CAN1 RX