main.lst

Hitex LPC2100 insider guide source code

ARM COMPILER V2.00f,  main                                                                 20/02/05  09:46:16  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: PLL                                        */
    3          /* Project:      LPC2100 Training course                    */
    4          /* Engineer:     T Martin       [e-mail]         */
    5          /* Filename:     main.c                                     */
    6          /* Language:     C                                          */
    7          /* Compiler:     Keil ARM   V2.00b                          */
    8          /* Assembler:                                               */
    9          /*                                                          */
   10          /************************************************************/
   11          /* COPYRIGHT: Hitex UK Ltd      2005                        */
   12          /* LICENSE:   THIS VERSION CREATED FOR FREE DISTRIBUTION    */
   13          /************************************************************/
   14          /* Function:                                                */
   15          /*                                                          */
   16          /* Example Phase locked loop configuration for LPC2100      */
   17          /*                                                          */
   18          /* Demonstrates setup of PLL and VPB divider                */
   19          /*                                                          */  
   20          /* Oscillator frequency 12.000 Mhz                          */
   21          /* Target board keil MCB21000                               */
   22          /************************************************************/
   23          
   24          #include <LPC210x.H>
   25          
   26          void init_PLL(void);
   27          
   28          
   29          int main(void)
   30          {
   31   1      init_PLL();                          // Configure the PLL and VPB divider
   32   1                                           //This is normally done in the startup code 
   33   1                                           //but for this example the startup config is disabled
   34   1      while(1)                             //main loop
   35   1      {
   36   2      ;                                    //Idle
   37   2      }
   38   1      }
   39          
   40          
   41          void init_PLL(void)
   42          {
   43   1      PLLCFG = 0x00000024;                        // Set multiplier and divider of PLL to give 60.00 Mhz
   44   1      PLLCON = 0x00000001;                        // Enable the PLL
   45   1      
   46   1      PLLFEED = 0x000000AA;                       // Update PLL registers with feed sequence
   47   1      PLLFEED = 0x00000055;
   48   1      
   49   1      while (!(PLLSTAT & 0x00000400))             // test Lock bit
   50   1      {
   51   2      ;
   52   2      }
   53   1      PLLCON = 0x00000003;                        // Connect the PLL
   54   1      
   55   1      PLLFEED = 0x000000AA;                       //Update PLL registers
   56   1      PLLFEED = 0x00000055;
   57   1      
   58   1      VPBDIV = 0x00000002;                        //Set the VLSI peripheral bus to 30.000Mhz
   59   1      }
ARM COMPILER V2.00f,  main                                                                 20/02/05  09:46:16  PAGE 2   

   60          
ARM COMPILER V2.00f,  main                                                                 20/02/05  09:46:16  PAGE 3   

ASSEMBLY LISTING OF GENERATED OBJECT CODE



*** EXTERNALS:
 EXTERN NUMBER (__startup)



*** PUBLICS:
 PUBLIC         init_PLL?T
 PUBLIC         main



*** CODE SEGMENT '?PR?main?main':
   29: int main(void)
 00000000  B500      PUSH        {LR}
   31: init_PLL();                          // Configure the PLL and VPB divider
 00000002  F7FF      BL          init_PLL?T  ; T=0x0001  (1)
 00000004  FFFD      BL          init_PLL?T  ; T=0x0001  (2)
   37: }
 00000008          L_1:
 00000008  E7FE      B           L_1  ; T=0x00000008
 0000000A  BC08      POP         {R3}
 0000000C  4718      BX          R3
 0000000E          ENDP ; 'main'


*** CODE SEGMENT '?PR?init_PLL?T?main':
   43: PLLCFG = 0x00000024;                        // Set multiplier and divider of PLL to give 60.00 Mhz
 00000000  2124      MOV         R1,#0x24
 00000002  4800      LDR         R0,=0xE01FC084
 00000004  7001      STRB        R1,[R0,#0x0]
   44: PLLCON = 0x00000001;                        // Enable the PLL
 00000006  2101      MOV         R1,#0x1
 00000008  4800      LDR         R0,=0xE01FC080
 0000000A  7001      STRB        R1,[R0,#0x0]
   46: PLLFEED = 0x000000AA;                       // Update PLL registers with feed sequence
 0000000C  21AA      MOV         R1,#0xAA
 0000000E  4800      LDR         R0,=0xE01FC08C
 00000010  7001      STRB        R1,[R0,#0x0]
   47: PLLFEED = 0x00000055;
 00000012  2155      MOV         R1,#0x55
 00000014  4800      LDR         R0,=0xE01FC08C
 00000016  7001      STRB        R1,[R0,#0x0]
   52: }
 00000018          L_5:
 00000018  4800      LDR         R0,=0xE01FC088
 0000001A  8800      LDRH        R0,[R0,#0x0]
 0000001C  4800      LDR         R1,=0x400
 0000001E  4208      TST         R0,R1
 00000020  D0FA      BEQ         L_5  ; T=0x00000018
   53: PLLCON = 0x00000003;                        // Connect the PLL
 00000022  2103      MOV         R1,#0x3
 00000024  4800      LDR         R0,=0xE01FC080
 00000026  7001      STRB        R1,[R0,#0x0]
   55: PLLFEED = 0x000000AA;                       //Update PLL registers
 00000028  21AA      MOV         R1,#0xAA
 0000002A  4800      LDR         R0,=0xE01FC08C
 0000002C  7001      STRB        R1,[R0,#0x0]
   56: PLLFEED = 0x00000055;
 0000002E  2155      MOV         R1,#0x55
 00000030  4800      LDR         R0,=0xE01FC08C
 00000032  7001      STRB        R1,[R0,#0x0]
   58: VPBDIV = 0x00000002;                        //Set the VLSI peripheral bus to 30.000Mhz
 00000034  2102      MOV         R1,#0x2
 00000036  4800      LDR         R0,=0xE01FC100
 00000038  7001      STRB        R1,[R0,#0x0]
   59: }
 0000003A  4770      BX          R14
 0000003C          ENDP ; 'init_PLL?T'


ARM COMPILER V2.00f,  main                                                                 20/02/05  09:46:16  PAGE 4   


Module Information          Static
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End of Module Information.


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