csd2x_1.asm

带触摸按键的高端电磁炉设计 该方案采用CYPRESS的新器件CY8C22545,是一款专门针对中高端的家电触摸产品设计。除了集成触摸按键功能外

; Shield electrode configuration Right
IF CSD2X_1_RIGHT_SHIELD_ENABLE
	and reg[DAC_CR1], ~40h                                               ; Disable shield to GOO7 for Right channel
ENDIF

    ; Comparator Configuration
    and reg[CSD2X_1_CMP_L_CR2], ~1                     ; Disable Left Comparator power
	and reg[CSD2X_1_CMP_R_CR2], ~1                        ; Disable Right Comparator power

    ; Prechardge clock configuration
	and reg[CMPCLK0], ~30h                                ; Clear CSD0/CSD1 clocks as left and right comparator clock sources
	and reg[AMUXCFG1], ~09h                               ; Do not use CSD0/CSD1 as clocks sources for prechardge switches

    ; IDAC Configuration
	and reg[DAC_CR0], ~1	                                 ; Disable Right IDAC
	and reg[DAC_CR1], ~80h                                ; Disable Left IDAC
	and reg[IDACMODE], ~05h                               ; Disable IDAC On/Off switch following CSD_CNT_EN

    M8C_SetBank0

    RAM_EPILOGUE RAM_USE_CLASS_4
    ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: CSD2X_1_wGetPortPinLeft(BYTE bSensor)
;
;  DESCRIPTION:
;      Returns the port and pin mask from a given sensor number.  This
;      function uses the table CSD2X_1_Sensor_Table to retrieve this
;      information.
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:
;        A => Sensor Number  ( 0 to n )
;  RETURNS:
;        A  <=  Sensor Bitmap
;        X  <=  Port Number
;
;  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.
;
 CSD2X_1_wGetPortPinLeft:
_CSD2X_1_wGetPortPinLeft:
   RAM_PROLOGUE RAM_USE_CLASS_1

   asl    A                                       ; Multiply index by 2 since table is 2 bytes per sensor
   mov    X,A                                     ; Copy index*2 in x for next value
   index  CSD2X_1_Sensor_Table_Left               ; A contains the port value
   swap   A,X                                     ; Place port value in X and index*2 in A
   inc    A                                       ; Advance to next value (bitMask)
   index  CSD2X_1_Sensor_Table_Left               ; A contains bitMask, X has port number

   RAM_EPILOGUE RAM_USE_CLASS_1
   ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: CSD2X_1_wGetPortPinRight(BYTE bSensor)
;
;  DESCRIPTION:
;      Returns the port and pin mask from a given sensor number.  This
;      function uses the table CSD2X_1_Sensor_Table to retrieve this
;      information.
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:
;        A => Sensor Number  ( 0 to n )
;  RETURNS:
;        A  <=  Sensor Bitmap
;        X  <=  Port Number
;
;  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.
;
 CSD2X_1_wGetPortPinRight:
_CSD2X_1_wGetPortPinRight:
   RAM_PROLOGUE RAM_USE_CLASS_1

   asl    A                                      ; Multiply index by 2 since table is 2 bytes per sensor
   mov    X,A                                    ; Copy index*2 in x for next value
   index  CSD2X_1_Sensor_Table_Right             ; A contains the port value
   swap   A,X                                    ; Place port value in X and index*2 in A
   inc    A                                      ; Advance to next value (bitMask)
   index  CSD2X_1_Sensor_Table_Right             ; A contains bitMask, X has port number

   RAM_EPILOGUE RAM_USE_CLASS_1
   ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: CSD2X_1_EnableSensor(BYTE bSensorMask, BYTE bPort)
;
;  DESCRIPTION:
;    Configures sensor to be an input to be measured during next measurement
;    cycle; places sensor pin's drive mode in Analog Hi-Z mode and connects
;    to the analog mux bus.
;
;    This function does not do anything with the previous sensor.
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:
;          X =>  Port Number for given sensor
;          A =>  Bit mask for given sensor
;
;  RETURNS:      none
;
;  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.
;
 CSD2X_1_EnableSensor:
_CSD2X_1_EnableSensor:
	RAM_PROLOGUE RAM_USE_CLASS_4
    RAM_SETPAGE_CUR 0 ; direct access ram will always be in interrupt ram area

    ; Setup Mux for sensor
    mov  [CSD2X_1_bBitMask],A                              ; Store bit mask in temp location
    push X

    mov  A,X                                               ; Multiply port number by four for registor addresses
    asl  A
    asl  A
    mov  X,A                                               ; Restore Port address in X

    ; Set mode do 10 (Hi-Z Analog) and connect to analog mux bus
    M8C_SetBank1
    mov  A,reg[X+DM1_OFFSET]                               ; Set DM1 to 1
    or   A,[CSD2X_1_bBitMask]
    mov  reg[X+DM1_OFFSET],A
    xor  [CSD2X_1_bBitMask],FFh                            ; Invert bitmask
    mov  A,reg[X+DM0_OFFSET]                               ; Clear DM0 bit to 0
    and  A,[CSD2X_1_bBitMask]
    mov  reg[X+DM0_OFFSET],A
    xor  [CSD2X_1_bBitMask],FFh                            ; Invert bitmask to get original mask
    pop X

    mov  A,X
    cmp  A,04h
    jz   _CSD2X_1_EnableSensor_1

    mov  A,reg[X+MUX_OFFSET]
    or   A,[CSD2X_1_bBitMask]
    mov  reg[X+MUX_OFFSET],A
    M8C_SetBank0
    jmp  _CSD2X_1_EnableSensor_2

_CSD2X_1_EnableSensor_1:
    mov  A,reg[MUX_CR4]
    or   A,[CSD2X_1_bBitMask]
    mov  reg[MUX_CR4],A
    M8C_SetBank0

_CSD2X_1_EnableSensor_2:
	RAM_EPILOGUE RAM_USE_CLASS_4
    ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: CSD2X_1_DisableSensor(BYTE bMask, BYTE bPort)
;
;  DESCRIPTION:
;    Disconnects the desired sensor from the analog mux bus and shunts to
;    ground.
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:
;          X =>  Port Number for given sensor
;          A =>  Bit mask for given sensor
;
;  RETURNS:      none
;
;  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.
;
 CSD2X_1_DisableSensor:
_CSD2X_1_DisableSensor:
	RAM_PROLOGUE RAM_USE_CLASS_4
	RAM_SETPAGE_CUR 0 ; direct access ram will always be in interrupt ram area

    ; Disconnect sensor from mux
    cpl  A                                       ; Invert bitmask
    mov  [CSD2X_1_bBitMask],A                    ; Store bit mask in temp location

    mov  A,X
    cmp  A,4h
    jz   _CSD2X_1_DisableSensor_1

   	M8C_SetBank1
    mov  A,reg[X+MUX_OFFSET]
    and  A,[CSD2X_1_bBitMask]
    mov  reg[X+MUX_OFFSET],A
   	M8C_SetBank0
    jmp  _CSD2X_1_DisableSensor_2

_CSD2X_1_DisableSensor_1:
   	M8C_SetBank1
    mov  A,reg[MUX_CR4]
    and  A,[CSD2X_1_bBitMask]
    mov  reg[MUX_CR4],A
   	M8C_SetBank0

_CSD2X_1_DisableSensor_2:
    mov  A,X                                     ; Multiply port number by four for register address
    asl  A
    asl  A
    mov  X,A                                     ; Restore Port address in X

    ; Set mode to 01 (Digital Strong)
   	M8C_SetBank1
    mov  A,reg[X+DM1_OFFSET]                     ; Set DM1 to 0
    and  A,[CSD2X_1_bBitMask]
    mov  reg[X+DM1_OFFSET],A
    xor  [CSD2X_1_bBitMask],FFh                  ; Invert bitmask back to normal
    mov  A,reg[X+DM0_OFFSET]                     ; Set DM0 bit to 1
    or   A,[CSD2X_1_bBitMask]
    mov  reg[X+DM0_OFFSET],A
	M8C_SetBank0

	RAM_EPILOGUE RAM_USE_CLASS_4
    ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: CSD2X_1_ScanSensor
;  DESCRIPTION:
;       Scan Selected pair of Sensors
;-----------------------------------------------------------------------------
;  ARGUMENTS: A = Sensor Number Left, X = Sensor Number Left
;  RETURNS:
;  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.
;-----------------------------------------------------------------------------
 CSD2X_1_ScanSensor:
_CSD2X_1_ScanSensor:
    RAM_PROLOGUE RAM_USE_CLASS_3
    RAM_SETPAGE_CUR 0 ; direct access ram will always be in interrupt ram area

    mov  [CSD2X_1_bSensorNumLeft], A                   ; Copy left sensor number
    mov  [CSD2X_1_bSensorNumRight], X                  ; Copy right sensor number

    cmp [CSD2X_1_bSensorNumLeft], 0FFh                 ; Check is scan enabled
    jnc .ScanRight

    ; Set Reference
    index  CSD2X_1_RefValue_Table_Left                 ; A contains the reference value
    call CSD2X_1_SetLeftRefValue

; Set DAC values
IF (CSD2X_1_AUTOCALIBRATION)
	mov A, [CSD2X_1_bSensorNumLeft]
	mov X, A                                                   ; Get array index
	RAM_SETPAGE_IDX >CSD2X_1_baDACCodeBaselineL
	mov A, [X+CSD2X_1_baDACCodeBaselineL]                 ; Get left DAC value from memory
   	call CSD2X_1_SetLeftDACValue
ELSE
    mov A, [CSD2X_1_bSensorNumLeft]
    index  CSD2X_1_DACL_Table                          ; A contains the left DAC value from ROM table
    call CSD2X_1_SetLeftDACValue
ENDIF

    ; Enable Sensor
	mov A, [CSD2X_1_bSensorNumLeft]
    call  CSD2X_1_wGetPortPinLeft                      ; Get sensor pin and port