Sıfır(zero) noktasını pic'le nasıl yakalarız?

eypd

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7 Kas 2007
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Alternatif akımda picle dimmer kontrolünde sıfır noktası nasıl yakalanır.?
 
Forumda ve webde "Voltage Zero Crossing Circuit" olarak aratın.
 
Sanırım aradağın devre bende var, moc 3041 ile mikroişlemci kontrollü, sıfır geçiş devresi. Devreyi buraya ekleyemedim, eğer mail adresini verirsen gönderebilirim.
 
devreyi beslemek icin kullandıgın adaptörün düsük voltajlı kısmından direncle gerilim bölücü yap(5 voltu asmayacak sekilde 2-3 volt civarı) ve direk olarak pic e bagla.set veya reset noktalarını bu sekide yakalarsın.50 hz icin 20ms oldugundan 0 ile 10 ms arasında gecikmeli olarak moc 3041 i sürersen dimer yapmıs olursun.
 
aşagıdaki program sana fikir verebilir,incelemeni tavsiye ederim.benzer bir is icin yapılmıstı,trafoya voltaj eklemesi yaparak voltaj yükseltici regülatör icin yazmıstım.prensibi tamamen aynı
Kod:
;TRİACLA VOLTAJ KONTROLU YAPILIYOR(DIMMER)
;TRIAC  20 VOLT ILE 110 VOLT ARASINDA VOLTAJ CIKARTIYOR
;          LIST P=16C54C
          


        __CONFIG B'0101'
        __IDLOCS H'0503'


        LIST P=16F628


;
;==========================================================================
;
;       Register Definitions
;
;==========================================================================


W                            EQU     H'0000'
F                            EQU     H'0001'


;----- Register Files------------------------------------------------------


INDF                         EQU     H'0000'
TMR0                         EQU     H'0001'
PCL                          EQU     H'0002'
STATUS                       EQU     H'0003'
FSR                          EQU     H'0004'
PORT_A                        EQU     H'0005'
PORT_B                        EQU     H'0006'
PCLATH                       EQU     H'000A'
INTCON                       EQU     H'000B'
PIR1                         EQU     H'000C'
TMR1L                        EQU     H'000E'
TMR1H                        EQU     H'000F'
T1CON                        EQU     H'0010'
TMR2                         EQU     H'0011'
T2CON                        EQU     H'0012'
CCPR1L                       EQU     H'0015'
CCPR1H                       EQU     H'0016'
CCP1CON                      EQU     H'0017'
RCSTA                        EQU     H'0018'
TXREG                        EQU     H'0019'
RCREG                        EQU     H'001A'
CMCON                        EQU     H'001F'


OPTION_REG                   EQU     H'0081'
TRISA                        EQU     H'0085'
TRISB                        EQU     H'0086'
PIE1                         EQU     H'008C'
PCON                         EQU     H'008E'
PR2                          EQU     H'0092'
TXSTA                        EQU     H'0098'
SPBRG                        EQU     H'0099'
EEDATA                       EQU     H'009A'
EEADR                        EQU     H'009B'
EECON1                       EQU     H'009C'
EECON2                       EQU     H'009D'
VRCON                        EQU     H'009F'


;----- STATUS Bits --------------------------------------------------------


IRP                          EQU     H'0007'
RP1                          EQU     H'0006'
RP0                          EQU     H'0005'
NOT_TO                       EQU     H'0004'
NOT_PD                       EQU     H'0003'
Z                            EQU     H'0002'
DC                           EQU     H'0001'
C                            EQU     H'0000'


;----- INTCON Bits --------------------------------------------------------


GIE                          EQU     H'0007'
PEIE                         EQU     H'0006'
T0IE                         EQU     H'0005'
INTE                         EQU     H'0004'
RBIE                         EQU     H'0003'
T0IF                         EQU     H'0002'
INTF                         EQU     H'0001'
RBIF                         EQU     H'0000'


;----- PIR1 Bits ----------------------------------------------------------


EEIF                         EQU     H'0007'
CMIF                         EQU     H'0006'
RCIF                         EQU     H'0005'
TXIF                         EQU     H'0004'
CCP1IF                       EQU     H'0002'
TMR2IF                       EQU     H'0001'
TMR1IF                       EQU     H'0000'


;----- T1CON Bits ---------------------------------------------------------
T1CKPS1                      EQU     H'0005'
T1CKPS0                      EQU     H'0004'
T1OSCEN                      EQU     H'0003'
NOT_T1SYNC                   EQU     H'0002'
TMR1CS                       EQU     H'0001'
TMR1ON                       EQU     H'0000'


;----- T2CON Bits ---------------------------------------------------------
TOUTPS3                      EQU     H'0006'
TOUTPS2                      EQU     H'0005'
TOUTPS1                      EQU     H'0004'
TOUTPS0                      EQU     H'0003'
TMR2ON                       EQU     H'0002'
T2CKPS1                      EQU     H'0001'
T2CKPS0                      EQU     H'0000'


;----- CCP1CON Bits ---------------------------------------------------------
CCP1X                        EQU     H'0005'
CCP1Y                        EQU     H'0004'
CCP1M3                       EQU     H'0003'
CCP1M2                       EQU     H'0002'
CCP1M1                       EQU     H'0001'
CCP1M0                       EQU     H'0000'


;----- RCSTA Bits ---------------------------------------------------------
SPEN                         EQU     H'0007'
RX9                          EQU     H'0006'
SREN                         EQU     H'0005'
CREN                         EQU     H'0004'
ADEN                         EQU     H'0003'
FERR                         EQU     H'0002'
OERR                         EQU     H'0001'
RX9D                         EQU     H'0000'


;----- CMCON Bits ---------------------------------------------------------


C2OUT                        EQU     H'0007'
C1OUT                        EQU     H'0006'
C2INV                        EQU     H'0005'
C1INV                        EQU     H'0004'
CIS                          EQU     H'0003'
CM2                          EQU     H'0002'
CM1                          EQU     H'0001'
CM0                          EQU     H'0000'


;----- OPTION Bits --------------------------------------------------------


NOT_RBPU                     EQU     H'0007'
INTEDG                       EQU     H'0006'
T0CS                         EQU     H'0005'
T0SE                         EQU     H'0004'
PSA                          EQU     H'0003'
PS2                          EQU     H'0002'
PS1                          EQU     H'0001'
PS0                          EQU     H'0000'


;----- PIE1 Bits ----------------------------------------------------------


EEIE                         EQU     H'0007'
CMIE                         EQU     H'0006'
RCIE                         EQU     H'0005'
TXIE                         EQU     H'0004'
CCP1IE                       EQU     H'0002'
TMR2IE                       EQU     H'0001'
TMR1IE                       EQU     H'0000'


;----- PCON Bits ----------------------------------------------------------


OSCF                         EQU     H'0003'
NOT_POR                      EQU     H'0001'
NOT_BO                       EQU     H'0000'
NOT_BOR                      EQU     H'0000'


;----- TXSTA Bits ----------------------------------------------------------
CSRC                         EQU     H'0007'
TX9                          EQU     H'0006'
TXEN                         EQU     H'0005'
SYNC                         EQU     H'0004'
BRGH                         EQU     H'0002'
TRMT                         EQU     H'0001'
TX9D                         EQU     H'0000'


;----- EECON1 Bits ---------------------------------------------------------
WRERR                        EQU     H'0003'
WREN                         EQU     H'0002'
WR                           EQU     H'0001'
RD                           EQU     H'0000'


;----- VRCON Bits ---------------------------------------------------------


VREN                         EQU     H'0007'
VROE                         EQU     H'0006'
VRR                          EQU     H'0005'
VR3                          EQU     H'0003'
VR2                          EQU     H'0002'
VR1                          EQU     H'0001'
VR0                          EQU     H'0000'


;==========================================================================
;
;       RAM Definition
;
;==========================================================================


    __MAXRAM H'01FF'
    __BADRAM H'07'-H'09', H'0D', H'13'-H'14', H'1B'-H'1E' 
	__BADRAM H'87'-H'89', H'8D', H'8F'-H'91', H'93'-H'97', H'9E'
	__BADRAM H'105', H'107'-H'109', H'10C'-H'11F', H'150'-H'16F' 
	__BADRAM H'185', H'187'-H'189', H'18C'-H'1EF'


;==========================================================================
;
;       Configuration Bits
;
;==========================================================================


_BODEN_ON                    EQU     H'3FFF'
_BODEN_OFF                   EQU     H'3FBF'
_CP_ALL                      EQU     H'03FF'
_CP_75                       EQU     H'17FF'
_CP_50                       EQU     H'2BFF'
_CP_OFF                      EQU     H'3FFF'
_PWRTE_OFF                   EQU     H'3FFF'
_PWRTE_ON                    EQU     H'3FF7'
_WDT_ON                      EQU     H'3FFF'
_WDT_OFF                     EQU     H'3FFB'
_LVP_ON                      EQU     H'3FFF'
_LVP_OFF                     EQU     H'3F7F'
_MCLRE_ON                    EQU     H'3FFF'
_MCLRE_OFF                   EQU     H'3FDF'
_ER_OSC_CLKOUT               EQU     H'3FFF'
_ER_OSC_NOCLKOUT             EQU     H'3FFE'
_INTRC_OSC_CLKOUT            EQU     H'3FFD'
_INTRC_OSC_NOCLKOUT          EQU     H'3FFC'
_EXTCLK_OSC                  EQU     H'3FEF'
_LP_OSC                      EQU     H'3FEC'
_XT_OSC                      EQU     H'3FED'
_HS_OSC                      EQU     H'3FEE'
INDR      EQU    00h
RTCC      EQU    01h
PC        EQU    02h
STATUS    EQU    03h
FSR       EQU    04h
PORT_A    EQU    05h     
PORT_B    EQU    06h     
COUNT1    EQU    07H
COUNT2    EQU    08H
COUNT3    EQU    09H
TEMP      EQU    0AH
TEMP1     EQU    0BH
TEMP2     EQU    0CH
SCOUNT    EQU    0DH


;************************
;PORT B TANIMLARI
#DEFINE     LAMBA               PORT_B,7
#DEFINE     FAZ                 PORT_A,0
#DEFINE     SENS                PORT_A,1
;**************************


           ORG    01FFH
           GOTO   PWRUP
           ORG    0H
           MOVLW   0X07
           MOVWF   CMCON
PWRUP      MOVLW    B'11000011'  
           OPTION  
           CLRF     PORT_A
           MOVLW     B'11111111'
           TRIS      PORT_A
           CLRF     PORT_B
           MOVLW     B'01111111'
           TRIS      PORT_B
;************************************************************
           CLRF     PORT_A
           CLRF     PORT_B
           CLRF     TEMP1
           CLRF     SCOUNT
BASLA      MOVLW    .200
           MOVWF    COUNT1
           CLRWDT
           bcf      LAMBA
         MOVLW    .100       ;49 ıken 215 volt cıkardı gırıs 120 ıken
           MOVWF    TEMP   
           CALL     BEKLE1   ;73 ıken 210 volt cıkardı gırıs 140 ıken
                             ;80 ıken 215 volt cıkardı gırıs 165 ıken


START     clrwdt
          BCF     LAMBA
          BTFSS    FAZ
           GOTO     START
          MOVF     TEMP,W
          CALL     BEKLE1
          BSF      LAMBA
          NOP
          CALL    KONTROL1
;*********          
DUR       clrwdt
          BCF    LAMBA
          BTFSC  FAZ
           GOTO   DUR
          MOVF   TEMP,W
         CALL   BEKLE2
        BSF    LAMBA
          CALL   KONTROL2
        BCF    LAMBA
          GOTO   START
          
;*****************************************************          
KONTROL1  nop
          nop
          nop
          nop
          nop
          nop
          nop
          nop
          DECFSZ COUNT1,F
          RETLW   0
          MOVLW    .100        ;her voltajdakı bekleme suresı
          MOVWF    COUNT1          
          NOP
          MOVF   TEMP,W
          XORLW  .10           ;54 IKEN 110 VOLT CIKIS VAR
          BTFSS  STATUS,Z
          RETLW  0
          NOP
          BCF    LAMBA
          GOTO   BASLA
KONTROL2  nop
          nop
          nop
          nop
          nop
          nop
          nop
          nop
          DECFSZ COUNT1,F
          RETLW   0
          MOVLW    .100      ;her voltajdakı bekleme suresı
          MOVWF    COUNT1          
;        DECF   TEMP,F
          MOVF   TEMP,W
          XORLW  .45           ;54 IKEN 110 VOLT CIKIS VAR
          BTFSS  STATUS,Z
          RETLW  0
          NOP
          BCF    LAMBA
          GOTO   BASLA         
;*****************************************************         
BEKLE1    MOVWF   TEMP1
          MOVLW   .26
          MOVWF   TEMP2
B1        DECFSZ  TEMP2,F
          GOTO    B1
          nop
          nop
          MOVLW   .26
          MOVWF   TEMP2          
          DECFSZ  TEMP1,F
          GOTO    B1
          RETLW   0


BEKLE2    MOVWF   TEMP1
          MOVLW   .26 
          MOVWF   TEMP2
B11       DECFSZ  TEMP2,F
          GOTO    B11
          NOP
          NOP
          MOVLW   .26
          MOVWF   TEMP2          
          DECFSZ  TEMP1,F
          GOTO    B11
          RETLW   0
           END

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