dualadcint.asm

Example_DUALADC_28pin CY3210-PSoCEVAL1 and CY3210-MiniEval1 Board Project

;;*****************************************************************************
;;*****************************************************************************
;;  FILENAME:   DUALADCINT.asm
;;  Version: 2.1, Updated on 2003/11/18 at 15:00:17
;;  Generated by PSoC Designer ver 4.1 b931 : 21 January, 2004
;;
;;  DESCRIPTION: DualADC Interrupt Service Routines.
;;
;;-----------------------------------------------------------------------------
;;  Copyright (c) Cypress MicroSystems 2001-2003. All Rights Reserved.
;;*****************************************************************************
;;*****************************************************************************

include "m8c.inc"
include "DUALADC.inc"

;-----------------------------------------------
;  Global Symbols
;-----------------------------------------------
export _DUALADC_CNT1_ISR
export _DUALADC_CNT2_ISR
export _DUALADC_PWM16_ISR

export  DUALADC_cCounter1U
export  DUALADC_cCounter2U
export _DUALADC_iResult1
export  DUALADC_iResult1
export _DUALADC_iResult2
export  DUALADC_iResult2
export _DUALADC_bfStatus
export  DUALADC_bfStatus
export  DUALADC_bSampC


;-----------------------------------------------
; Variable Allocation
;-----------------------------------------------
AREA bss(RAM)

 DUALADC_cCounter1U:     BLK   1  ;The Upper byte of the Counter
 DUALADC_cCounter2U:     BLK   1  ;The Upper byte of the Counter
_DUALADC_iResult1:
 DUALADC_iResult1:       BLK   2  ;A/D value
_DUALADC_iResult2:
 DUALADC_iResult2:       BLK   2  ;A/D value
_DUALADC_bfStatus:
 DUALADC_bfStatus:       BLK   1  ;Data Valid Flag
 DUALADC_bSampC:         BLK   1  ;# of times to run A/D


;@PSoC_UserCode_INIT@ (Do not change this line.)
;---------------------------------------------------
; Insert your custom declarations below this banner
;---------------------------------------------------

;------------------------
;  Constant Definitions
;------------------------


;------------------------
; Variable Allocation
;------------------------


;---------------------------------------------------
; Insert your custom declarations above this banner
;---------------------------------------------------
;@PSoC_UserCode_END@ (Do not change this line.)


;-----------------------------------------------
;  EQUATES and TABLES
;-----------------------------------------------
; Constant Definitions
LowByte:   equ 1
HighByte:  equ 0


AREA UserModules (ROM, REL)


.LITERAL
DUALADCMaxNegX4Table:
; Bits  7    8    9   10   11   12   13
   DB  FFh, FEh, FCh, F8h, F0h, E0h, C0h

DUALADCMaxPosX4Table:
IF (DUALADC_DATA_FORMAT)
; Bits (signed)    7    8    9   10   11   12   13
              DB  01h, 02h, 04h, 08h, 10h, 20h, 40h
ELSE
; Bits (unsigned)  7    8    9   10   11   12   13
              DB  02h, 04h, 08h, 10h, 20h, 40h, 80h

ENDIF
.ENDLITERAL


;-----------------------------------------------------------------------------
;  FUNCTION NAME: _DUALADC_CNT1_ISR (Counter8 Interrupt)
;
;
;  DESCRIPTION:
;    Increment the upper (software) half on the counter whenever the
;    lower (hardware) half of the counter underflows.  This counter
;    should start out at the most negative value (0xFF).
;
;-----------------------------------------------------------------------------
;
_DUALADC_CNT1_ISR:
   inc [DUALADC_cCounter1U]
   ;@PSoC_UserCode_BODY_1@ (Do not change this line.)
   ;---------------------------------------------------
   ; Insert your custom code below this banner
   ;---------------------------------------------------
   ;   NOTE: interrupt service routines must preserve
   ;   the values of the A and X CPU registers.

   ;---------------------------------------------------
   ; Insert your custom code above this banner
   ;---------------------------------------------------
   ;@PSoC_UserCode_END@ (Do not change this line.)
   reti


;-----------------------------------------------------------------------------
;  FUNCTION NAME: _DUALADC_CNT2_ISR (Counter8 Interrupt)
;
;
;  DESCRIPTION:
;  Increment the upper (software) half on the counter whenever the
;  lower (hardware) half of the counter underflows.  This counter
;  should start out at the most negative value (0xFF).
;
;-----------------------------------------------------------------------------
;
_DUALADC_CNT2_ISR:
   inc [DUALADC_cCounter2U]
   ;@PSoC_UserCode_BODY_2@ (Do not change this line.)
   ;---------------------------------------------------
   ; Insert your custom code below this banner
   ;---------------------------------------------------
   ;   NOTE: interrupt service routines must preserve
   ;   the values of the A and X CPU registers.

   ;---------------------------------------------------
   ; Insert your custom code above this banner
   ;---------------------------------------------------
   ;@PSoC_UserCode_END@ (Do not change this line.)
   reti


;-----------------------------------------------------------------------------
;  FUNCTION NAME: _DUALADC_PWM16_ISR  (PWM16 Interrupt)
;
;  DESCRIPTION:
;  This ISR is called when the ADC has completed and integrate cycle.
;  The ADC value is calculated and stored in a global location before
;  the end of the ISR.
;
;-----------------------------------------------------------------------------
;
_DUALADC_PWM16_ISR:
   and   reg[DUALADC_bCounter1_CR0], ~DUALADC_fDBLK_ENABLE ; Disable Counter
   and   reg[DUALADC_bCounter2_CR0], ~DUALADC_fDBLK_ENABLE ; Disable Counter
IF DUALADC_NoAZ
   or    reg[DUALADC_bfADC1cr2], DUALADC_fAutoZero         ; Put Integrator in AutoZero
   or    reg[DUALADC_bfADC2cr2], DUALADC_fAutoZero         ; Put Integrator in AutoZero
ENDIF
   or   reg[DUALADC_bfADC1cr3],DUALADC_fFSW0               ; Put Integrator in reset
   or   reg[DUALADC_bfADC2cr3],DUALADC_fFSW0               ; Put Integrator in reset

                                                           ; Enable interrupts for a short period of time just in case.
                                                           ; Make sure we didn't have a counter interrupt ready to fire
   M8C_EnableGInt
   nop                                                     ; Wait a couple cycles
   M8C_DisableGInt                                         ; Disable interrupt, read to complete processing
   push  A                                                 ; Save the Accumulator


   ; Get ADC1 result
   mov   A,reg[DUALADC_bCount1]                            ; Read counter value  (Bogus read puts value in Period register)
   mov   A,reg[DUALADC_bCompare1]                          ; Read counter value
   dec   A                                                 ; Decrement by one to make sure we didn't miss a count
   cpl   A                                                 ; Invert the value
   jnc   DUALADC_INT_CALCV1                                ; if carry, then inc MSB as well
   inc   [DUALADC_cCounter1U]