dac_view.lst

TI的digital motor control lib的源代码。了解TI的编程规范

dspa -q -l -s -i../../../rtmon -i../../../sys/bldc3_2/asm -i..\..\..\rtmon -i..\..\..\sys\bldc3_2\asm -v2xx -iC:/ti/c2400/cgtools/include -g dac_view.asm dac_view.obj 

TMS320C24xx COFF Assembler Version 7.02  Sun Apr 27 20:34:18 2003
Copyright (c) 1987-2002  Texas Instruments Incorporated 
dac_view.asm                                                         PAGE    1

       1            ;===========================================================================
       2            ; File Name:    DAC_VIEW.asm
       3            ;
       4            ; Module Name:  DAC_VIEW_DRV    
       5            ;
       6            ; Initialization Routine: DAC_VIEW_DRV_INIT
       7            ;
       8            ; Originator:   Digital Control Systems Group
       9            ;                       Texas Instruments
      10            ;
      11            ; Description:  Converts any s/w variable with Q15 representation into its 
      12            ;               equivalent Q0 format that spans the full input range of
      13            ;               a 12-bit DAC. Thus, it can be used to view the signal, 
      14            ;               represented by the variable, at the output of the 12-bit 
      15            ;               DAC on the 24x/24xx EVM. 
      16            ;                               |~~~~~~~~~~~~~~~|
      17            ;       DAC_IPTR0       o------>|               |----->o  DAC0 (pin)
      18            ;       DAC_IPTR1       o------>|               |----->o  DAC1 (pin)
      19            ;       DAC_IPTR2       o------>| DAC_VIEW_DRV  |----->o  DAC2 (pin)
      20            ;       DAC_IPTR3       o------>|               |----->o  DAC3 (pin)
      21            ;                               |_______________|
      22            ;
      23            ;       The input variables ( DAC_IPTR0,...etc) are pointers to Data RAM,
      24            ;       hence any Data RAM variable (in Q15 representation) can be output
      25            ;       to the DAC. Useful in Real-time mode to change DAC signals on the
      26            ;       "fly".
      27            ;
      28            ; Target: 'LF2407/F243/F240 EVM
      29            ;
      30            ;=====================================================================================
      31            ; History:
      32            ;-------------------------------------------------------------------------------------
      33            ; 9-15-2000     Release Rev 1.0
      34            ;===========================================================================
      35            ;(To use this Module, copy this section to main system file)
      36            ;               .ref    DAC_VIEW_DRV,DAC_VIEW_DRV_INIT          ; function call
      37            ;               .ref    DAC_IPTR0,DAC_IPTR1,DAC_IPTR2,DAC_IPTR3 ; Inputs
      38            ;===========================================================================
      39            ;Module definitions for external reference.
      40                            .def    DAC_VIEW_DRV,DAC_VIEW_DRV_INIT          ; function call
      41                            .def    DAC_IPTR0,DAC_IPTR1,DAC_IPTR2,DAC_IPTR3 ; Inputs
      42            ;===========================================================================
      43                            .include        x24x_app.h
      44            
      45      0fff  DAC_FLL_RES     .set    4095                    ; Note: DAC is 12bit res.
      46      07ff  DAC_HLF_RES     .set    2047
      47            
      48 0000       dac_hlf_rng     .usect "dac_view",1
      49 0001       dac_fll_rng     .usect "dac_view",1
      50 0002       DAC_IPTR0       .usect "dac_view",1
      51 0003       DAC_IPTR1       .usect "dac_view",1
      52 0004       DAC_IPTR2       .usect "dac_view",1
      53 0005       DAC_IPTR3       .usect "dac_view",1
      54 0006       DAC_tmp0        .usect "dac_view",1
TMS320C24xx COFF Assembler Version 7.02  Sun Apr 27 20:34:18 2003
Copyright (c) 1987-2002  Texas Instruments Incorporated 
dac_view.asm                                                         PAGE    2

      55            
      56 0000       DAC_VIEW_DRV_INIT:
      57 0000 bc00-                 LDP     #dac_hlf_rng
      58 0001 ae00-                 SPLK    #DAC_HLF_RES,dac_hlf_rng
         0002 07ff  
      59 0003 ae01-                 SPLK    #DAC_FLL_RES,dac_fll_rng
         0004 0fff  
      60 0005 ae02-                 SPLK    #300h,DAC_IPTR0
         0006 0300  
      61 0007 ae03-                 SPLK    #300h,DAC_IPTR1
         0008 0300  
      62 0009 ae04-                 SPLK    #300h,DAC_IPTR2
         000a 0300  
      63 000b ae05-                 SPLK    #300h,DAC_IPTR3
         000c 0300  
      64 000d ef00                  RET
      65            
      66 000e       DAC_VIEW_DRV:
      67            ;Convert Q15 input value to an absolute Q0 output to DAC0 channel
      68 000e bf01                  SPM     1
      69 000f 8b8e                  MAR     *,AR6
      70 0010 bc00-                 LDP     #DAC_IPTR0
      71 0011 0602-                 LAR     AR6,DAC_IPTR0
      72 0012 7380                  LT      *
      73 0013 5400-                 MPY     dac_hlf_rng             ; Normalise to half range of DAC
      74 0014 be03                  PAC                             ;
      75 0015 6100-                 ADDH    dac_hlf_rng             ; offset by 1/2 DAC max value
      76 0016 9806-                 SACH    DAC_tmp0
      77 0017 0c06-                 OUT     DAC_tmp0,PA0    ; DAC0 o/p
         0018 0000  
      78            
      79            ;Convert Q15 input value to an absolute Q0 output to DAC1 channel
      80 0019 0603-                 LAR     AR6,DAC_IPTR1
      81 001a 7380                  LT      *
      82 001b 5400-                 MPY     dac_hlf_rng             ; Normalise to half range of DAC
      83 001c be03                  PAC                             ;
      84 001d 6100-                 ADDH    dac_hlf_rng             ; offset by 1/2 DAC max value
      85 001e 9806-                 SACH    DAC_tmp0
      86 001f 0c06-                 OUT     DAC_tmp0,PA1    ;DAC1 o/p
         0020 0001  
      87            
      88            ;Convert Q15 input value to an absolute Q0 output to DAC2 channel
      89 0021 0604-                 LAR     AR6,DAC_IPTR2
      90 0022 7380                  LT      *
      91 0023 5400-                 MPY     dac_hlf_rng             ; Normalise to half range of DAC
      92 0024 be03                  PAC                             ;
      93 0025 6100-                 ADDH    dac_hlf_rng             ; offset by 1/2 DAC max value
      94 0026 9806-                 SACH    DAC_tmp0
      95 0027 0c06-                 OUT     DAC_tmp0,PA2    ;DAC2 o/p
         0028 0002  
      96            
      97            ;Convert Q15 input value to an absolute Q0 output to DAC3 channel
      98 0029 0605-                 LAR     AR6,DAC_IPTR3
      99 002a 7380                  LT      *
TMS320C24xx COFF Assembler Version 7.02  Sun Apr 27 20:34:18 2003
Copyright (c) 1987-2002  Texas Instruments Incorporated 
dac_view.asm                                                         PAGE    3

     100 002b 5400-                 MPY     dac_hlf_rng             ; Normalise to half range of DAC
     101 002c be03                  PAC                             ;
     102 002d 6100-                 ADDH    dac_hlf_rng             ; offset by 1/2 DAC max value
     103 002e 9806-                 SACH    DAC_tmp0
     104 002f 0c06-                 OUT     DAC_tmp0,PA3    ; DAC3 o/p
         0030 0003  
     105            ;update DAC:
     106 0031 0c06-                 OUT     DAC_tmp0,PA4    ; here DAC_tmp0 is only a dummy.
         0032 0004  
     107 0033 8b89                  mar     *,AR1                   ; C requirement
     108 0034 bf00                  SPM     0                       ; C requirement
     109 0035 ef00                  RET
     110            

 No Errors,  No Warnings