adcinc14.asm

此程序是用CYPRESS单片机编写

;;*****************************************************************************
;;*****************************************************************************
;;  ADCINC14.asm
;;  Version: 1.3, Updated on 2005/09/29 at 13:13:53
;;  Generated by PSoC Designer ver 4.2  b1013 : 02 September, 2004
;;
;;  DESCRIPTION: ADCINC14 User Module software implementation file for
;;               the 22/24/25/26/27xxx PSoC family of devices.
;;
;;  NOTE: User Module APIs conform to the fastcall16 convention for marshalling
;;        arguments and observe the associated "Registers are volatile" policy.
;;        This means it is the caller's responsibility to preserve any values
;;        in the X and A registers that are still needed after the API functions
;;        returns. For Large Memory Model devices it is also the caller's 
;;        responsibility to perserve any value in the CUR_PP, IDX_PP, MVR_PP and 
;;        MVW_PP registers. Even though some of these registers may not be modified
;;        now, there is no guarantee that will remain the case in future releases.
;;-----------------------------------------------------------------------------
;;  Copyright (c) Cypress MicroSystems 2000-2003. All Rights Reserved.
;;*****************************************************************************
;;*****************************************************************************

include "ADCINC14.inc"
include "m8c.inc"
include "memory.inc"

;-----------------------------------------------
;  Global Symbols
;-----------------------------------------------
export  ADCINC14_Start
export _ADCINC14_Start
export  ADCINC14_SetPower
export _ADCINC14_SetPower
export  ADCINC14_Stop
export _ADCINC14_Stop
export  ADCINC14_GetSamples
export _ADCINC14_GetSamples
export  ADCINC14_StopAD
export _ADCINC14_StopAD
export  ADCINC14_fIsData
export _ADCINC14_fIsData
export  ADCINC14_fIsDataAvailable
export _ADCINC14_fIsDataAvailable
export  ADCINC14_iGetData
export _ADCINC14_iGetData
export  ADCINC14_ClearFlag
export _ADCINC14_ClearFlag
export  ADCINC14_iGetDataClearFlag
export _ADCINC14_iGetDataClearFlag

;-----------------------------------------------
;  Constant Definitions
;-----------------------------------------------
LSB:       equ 1
MSB:       equ 0

CALCTIME_LSB:      equ   (ADCINC14_CALCTIME & 0x0000FF)
CALCTIME_ISB:      equ   ((ADCINC14_CALCTIME & 0x00FF00) >> 8)
CALCTIME_MSB:      equ   ((ADCINC14_CALCTIME & 0xFF0000) >> 16)

AREA UserModules (ROM, REL)

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: ADCINC14_Start
;  FUNCTION NAME: ADCINC14_SetPower
;
;  DESCRIPTION:
;     Applies power setting to the module's analog PSoc block.
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:
;   A  Contains power level setting 0 to 3
;
;  RETURNS:  NA
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to perserve their values across calls to fastcall16 
;    functions.
;
 ADCINC14_Start:
_ADCINC14_Start:
 ADCINC14_SetPower:
_ADCINC14_SetPower:
   RAM_PROLOGUE RAM_USE_CLASS_2
   and   A,ADCINC14_bfPOWERMASK                      ; Mask only the valid power setting bits
   mov   X, SP                                       ; Get location of next location on stack
   push  A                                           ; Save power value on temp location
   mov   A, reg[ADCINC14_bfAtoDcr3]                  ; Get current value of AtoDcr3
   and   A, ~ADCINC14_bfPOWERMASK                    ; Mask off old power value
   or    A, [X]                                      ; OR in new power value
   or    A, f0h                                      ; Make sure other register is set correctly
   mov   reg[ADCINC14_bfAtoDcr3], A                  ; Reload CR with new power value
   pop   A                                           ; Restore the stack and power value
   RAM_EPILOGUE RAM_USE_CLASS_2
   ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: ADCINC14_Stop
;
;  DESCRIPTION:
;     Removes power from the module's analog PSoc block, but the digital
;     blocks keep on running.
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS: None
;
;  RETURNS:   NA
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to perserve their values across calls to fastcall16 
;    functions.
;
 ADCINC14_Stop:
_ADCINC14_Stop:
   RAM_PROLOGUE RAM_USE_CLASS_1
   and   reg[ADCINC14_bfAtoDcr3], ~ADCINC14_bfPOWERMASK
   RAM_EPILOGUE RAM_USE_CLASS_1
   ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: ADCINC14_Get_Samples
;
;  DESCRIPTION:
;     Starts the A/D convertor and will place data is memory.  A flag
;     is set whenever a new data value is available.
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:
;  A  Number of samples to be taken.  A zero will cause the ADC to run
;     continuously.
;
;  RETURNS:  NA
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to perserve their values across calls to fastcall16 
;    functions.
;          
;    Currently only the page pointer registers listed below are modified: 
;          CUR_PP
;
 ADCINC14_GetSamples:
_ADCINC14_GetSamples:
   RAM_PROLOGUE RAM_USE_CLASS_4
   RAM_SETPAGE_CUR >ADCINC14_bSampC                  
   mov   [ADCINC14_bSampC], A                              ; Store sample count

   call  ADCINC14_StopAD                                   ; Halt PWM and counter, Disable
                                                           ; Interrupts, Put A/D in reset


   mov   reg[ADCINC14_bPWM_IntTime_LSB], FFh       ; Int time = (2^14)*4 = 2^16 = 0x010000
   mov   reg[ADCINC14_bPWM_IntTime_ISB], FFh
   mov   reg[ADCINC14_bPWM_IntTime_MSB], 00h

   mov   A,<(0x010000 - 1)                        ; Add CalcTime to integrate period to get total
   add   A,CALCTIME_LSB                           ; period.
   mov   reg[ADCINC14_bPWM_Period_LSB],A
   mov   A,>(0x010000 - 1)
   adc   A,CALCTIME_ISB
   mov   reg[ADCINC14_bPWM_Period_ISB],A
   mov   A,0
   adc   A,CALCTIME_MSB
   mov   reg[ADCINC14_bPWM_Period_MSB],A


IF (ADCINC14_DATA_FORMAT)
   mov   [ADCINC14_iCounterU+LSB], 0xE0                    ; Start counter at -(2^14)/2 = -8192 for signed result
   mov   [ADCINC14_iCounterU+MSB], 0xFF                    ; Start counter at -(2^14)/2 = -8192 for signed result
ELSE
   mov   [ADCINC14_iCounterU+LSB], 00h                     ; Always start at zero for unsigned values
   mov   [ADCINC14_iCounterU+MSB], 00h                     ; Always start at zero for unsigned values
ENDIF

   mov   A, reg[ADCINC14_bPWM_IntTime_LSB]                 ; Dummy Read  - required do not remove
   mov   reg[ADCINC14_bPeriod], FFh                        ; Make sure counter starts at FF

   and   reg[ADCINC14_bfAtoDcr3],~ADCINC14_fFSW0           ; Take Integrator out of reset
IF ADCINC14_NoAZ
   and   reg[ADCINC14_bfAtoDcr2],~ADCINC14_fAutoZero       ; Take Integrator out of AutoZero
ENDIF

                                                               ; Enable the A/D and Start it!
   or    reg[ADCINC14_bCounter_CR0], (ADCINC14_fDBLK_ENABLE|ADCINC14_fPULSE_WIDE)   ; Enable the Counter
   or    reg[ADCINC14_fPWM_LSB_CR0], ADCINC14_fDBLK_ENABLE          ; Enable PWM
   or    reg[ADCINC14_bfPWM24_INT_REG], ADCINC14_bfPWM24_Mask  ; Enable PWM and Counter interrupts
   or    reg[ADCINC14_bfCounter_INT_REG], ADCINC14_bfCounter_Mask
   RAM_EPILOGUE RAM_USE_CLASS_4
   ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: ADCINC14_StopAD
;
;  DESCRIPTION:
;     Completely shuts down the A/D is an orderly manner.  Both the
;     Timer and Counter are disabled and their interrupts are deactivated.
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:  None
;
;  RETURNS: NA
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to perserve their values across calls to fastcall16 
;    functions.
;
 ADCINC14_StopAD:
_ADCINC14_StopAD:
   RAM_PROLOGUE RAM_USE_CLASS_1
   and   reg[ADCINC14_fPWM_LSB_CR0], ~ADCINC14_fDBLK_ENABLE    ; Disable the PWM

   and   reg[ADCINC14_bCounter_CR0], ~ADCINC14_fDBLK_ENABLE           ; Disable the Counter

IF ADCINC14_NoAZ
   or   reg[ADCINC14_bfAtoDcr2], ADCINC14_fAutoZero            ; Put the Integrator into Autozero mode
ENDIF

   or   reg[ADCINC14_bfAtoDcr3], ADCINC14_fFSW0                ; Put Integrator into reset
   push A
   M8C_DisableIntMask ADCINC14_bfPWM24_INT_REG, ADCINC14_bfPWM24_Mask      ; Disable interrupts
   M8C_DisableIntMask ADCINC14_bfCounter_INT_REG, ADCINC14_bfCounter_Mask
   pop  A
   RAM_EPILOGUE RAM_USE_CLASS_1
   ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: ADCINC14_fIsData
;  FUNCTION NAME: ADCINC14_fIsDataAvailable
;
;  DESCRIPTION:
;     Returns the status of the A/D Data is set whenever a new data
;     value is available.
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS: None
;
;  RETURNS:
;  A  Returns data status  A == 0 no data available
;                          A != 0 data available
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to perserve their values across calls to fastcall16 
;    functions.
;          
;    Currently only the page pointer registers listed below are modified: 
;          CUR_PP
;
 ADCINC14_fIsData:
_ADCINC14_fIsData:
 ADCINC14_fIsDataAvailable:
_ADCINC14_fIsDataAvailable:
   RAM_PROLOGUE RAM_USE_CLASS_4
   RAM_SETPAGE_CUR >ADCINC14_bfStatus
   mov   A, [ADCINC14_bfStatus]                       ; Get status byte
   and   A, ADCINC14_fDATA_READY                      ; Mask off other bits
   RAM_EPILOGUE RAM_USE_CLASS_4
   ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: ADCINC14_iGetDataClearFlag
;  FUNCTION NAME: ADCINC14_iGetData
;
;  DESCRIPTION:
;     Returns the data from the A/D.  Does not check if data is available.
;     iGetDataClearFlag clears the result ready flag as well.
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS: None
;
;  RETURNS:
;  A:X  return the ADC result.
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to perserve their values across calls to fastcall16 
;    functions.
;          
;    Currently only the page pointer registers listed below are modified: 
;          CUR_PP
;
 ADCINC14_iGetDataClearFlag:
_ADCINC14_iGetDataClearFlag:
   RAM_PROLOGUE RAM_USE_CLASS_4
   RAM_SETPAGE_CUR >ADCINC14_bfStatus   
   and   [ADCINC14_bfStatus], ~ADCINC14_fDATA_READY  ; Clear Data ready bit
   mov   X, [(ADCINC14_iResult + MSB)]
   mov   A, [(ADCINC14_iResult + LSB)]
   RAM_EPILOGUE RAM_USE_CLASS_4
   ret

 ADCINC14_iGetData:
_ADCINC14_iGetData:
   RAM_PROLOGUE RAM_USE_CLASS_4
   RAM_SETPAGE_CUR >ADCINC14_bfStatus   
   mov   X, [(ADCINC14_iResult + MSB)]
   mov   A, [(ADCINC14_iResult + LSB)]
   RAM_EPILOGUE RAM_USE_CLASS_4
   ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: ADCINC14_ClearFlag
;
;  DESCRIPTION:
;     Clears the data ready flag.
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS: None
;
;  RETURNS: NA
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to perserve their values across calls to fastcall16 
;    functions.
;          
;    Currently only the page pointer registers listed below are modified: 
;          CUR_PP
;
 ADCINC14_ClearFlag:
_ADCINC14_ClearFlag:
   RAM_PROLOGUE RAM_USE_CLASS_4
   RAM_SETPAGE_CUR >ADCINC14_bfStatus      
   and   [ADCINC14_bfStatus], ~ADCINC14_fDATA_READY  ; Clear Data ready bit
   RAM_EPILOGUE RAM_USE_CLASS_4
   ret

.ENDSECTION
; End of File ADCINC14.asm