PFC8583 Connection and I2Cwrite I2cread!

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- 20th February 2006, 11:04
uludere72

PFC8583 Connection and I2Cwrite I2cread!

I want to use PFC8583 . But i coludn't get/set any data .

I tried

i2cread sda,scl,$A2,2,[S]
i2CWrite sda,scl,$A2,4,[H]

andi changed $A2 =%10100010 ------> %10100001..

and what must be min configuration for connecting PFC!
I connected scl and SDA pin!

......

sec var bit

S var byte
M var byte
H var byte

SCL var PORTB.0
SDA var PORTA.4
....
.
.
.

'

Read 4,H
i2CWrite sda,scl,$A2,4,[H]
pause 20

Read 3,M
i2CWrite sda,scl,$A2,3,[M]
pause 20

.
...
call Display_clock
.

'''

Display_Clock:
toggle sec
i2cread sda,scl,$A2,2,[S]
i2cread sda,scl,$A2,3,[M]
i2cread sda,scl,$A2,4,[H]
'i2cread sda,scl,$A2,5,[D]
'i2cread sda,scl,$A2,6,[Mn]
'i2cread sda,scl,$A2,7,[y]
LCDout $FE,$C0

if sec=0 then
lcdout hex(H),":",hex(M),":",hex(S)

else
lcdout hex(H)," ",hex(M)," ",hex(S)
endif
return

thx
- 20th February 2006, 11:17
robert0

"and what must be min configuration for connecting PFC!
I connected scl and SDA pin!"

Did you put two resistors tied to VDD??

roberto
- 20th February 2006, 13:26
uludere72

i connected resistors..
i couldn't read and write clock data from PFC?

ps: i read previous topics but i couldn't find solution ...
- 20th February 2006, 15:33
uludere72

i started to read PFC

these codes works properly !!

i2cread sda,scl,$A2,2,[S] 'sec
i2cread sda,scl,$A2,3,[M] 'minute
i2cread sda,scl,$A2,4,[H] 'hour

but i couldn't set time ?

i want to set "18:59" time to PFC but this code didn't work ?

......
M = 45
H = 18

.....
i2cwrite sda,scl,$A2,2,[S] 'sec
i2cwrite sda,scl,$A2,3,[M] 'minute
i2cwrite sda,scl,$A2,4,[H] 'hour

....
- 21st February 2006, 08:58
Peder

You should use $A1 or $A0 as far as I know...

Is you control register set to the right value??
I2CWrite DPIN,CPIN, $A1,$00,[ $09 ] ( See datasheets for the value you need)
- 24th February 2006, 07:34
uludere72

thx!

i can read and setup time !
but , clock counts very slow !! I couldnt adjust with variable condansator !!

please help !!
- 24th February 2006, 12:17
elektroline

hi Uludere

i dont understand why it "slow" .. ..
you write me..

Hocam merhaba...
Pcf de sorun yaşamaman lazım.. Ben ikisinide kullandım. ds1307 veya pcf8583 problemsiz entegreler bunlar. bana sıkıntını tam yazarsan yardımcı olabilirim.

------------------------------------
Elektroline
www.labarna.com
[email protected]
------------------------------------
- 24th February 2006, 19:51
uludere72

thx elektroline!!
i am going to send my problem on monday !!
- 24th February 2006, 20:00
uludere72

ds1302 AND pfc8583

pfc 8583 is counting 1 minute in 2 minute ?
and second is counting to 99?
- 26th February 2006, 19:34
ffambrin

Help from Brazil

Hi, I am a Brazilian Electronic Engineer and my website is www.fdai.net

I would like to help my friends that have problems with PCF8583 and Melabs PICBasicPRO
My code for this :
'************************************************* ***************
' PCF 8583 APREDENDO_1.0
' programa para testar o chip PCF8583
' na placa do Distribuidor de Energia
' 26/Fev/2006
'************************************************* ***************
define OSC 20
DEFINE ADC_BITS 10
define ADC_CLOCK 1
DEFINE LCD_DREG PORTD
DEFINE LCD_DBIT 4
DEFINE LCD_RSREG PORTD
DEFINE LCD_RSBIT 2
DEFINE LCD_EREG PORTD
DEFINE LCD_EBIT 3
DEFINE LCD_BITS 4
DEFINE LCD_LINES 2
symbol SCL = PORTC.3 ' I2C clock
symbol SDA = PORTC.5 ' I2C data
symbol UP = PORTA.4
SYMBOL DOWN = PORTA.3
SYMBOL ENTER = PORTA.2
SYMBOL SEL = PORTA.1
;*******************************************
; Configuração do PIC
;*******************************************
TRISA=%00111111
TRISB=%00000000
TRISC=%00100000
TRISD=%00000000
ADCON1 = $0E 'Configura somente RA0 como entrada de AD
'******************************************
PORTB=%00000000
PORTC=%00000000
PORTD=%00000000
'*****************************************
'------------------------
' VARIAVEIS DO PROGRAMA
HOUR VAR BYTE
MINUTE VAR BYTE
DAY VAR BYTE
MONTHY VAR BYTE
YEAR VAR BYTE
S VAR BYTE
M VAR BYTE
H VAR BYTE
D var byte
Mn var byte
Y var byte
TEMPO VAR WORD
'-----------------------
lcdout $fe,1 'limpa o display
Pause 500
lcdout "PCF8583 Aprender"
Lcdout $fe,$c0
LCDOUT "FDAI Eletronica"
Pause 1500
lcdout $fe,1 'limpa o display
Pause 100

Main:
I2CREAD SDA,SCL,%10100001,2,[S]
I2CREAD SDA,SCL,%10100001,3,[M]
I2CREAD SDA,SCL,%10100001,4,[H]
I2CREAD SDA,SCL,%10100001,5,[D]
I2CREAD SDA,SCL,%10100001,6,[Mn]
I2CREAD SDA,SCL,%10100001,7,[Y]

IF PORTA.1=0 THEN GOSUB ACERTAR

lcdout $fe,1 'Limpa o LCD
lcdout $fe,2 'cursor n primeira posição
lcdout "Hora: ", hex(H),":", hex2(M),":", hex2(S)
lcdout $fe,$c0 'segunda linha do display
lcdout "Data: ", hex2(D),".", hex2(Mn),".20",hex2(Y)

IF PORTA.1=0 THEN GOSUB ACERTAR

Pause 500
goto Main 'VOLTA PARA O LOOP PRINCIPAL

'************************************************* *****************
' Rotina de ajuste do relogio RTC
ACERTAR:
lcdout $fe,1
Lcdout "Acertar hora"
Pause 1000
TEMPO = 1000
'Verifica se algum botao de ajuste foi pressionado:
'------------------------
VER_BOTOES:

IF TEMPO =0 THEN
GOSUB GRAVAR_HORARIO
RETURN
ENDIF

tempo = tempo -1
' Checa se algum botao de ajuste de h/min foi pressionado
If PORTA.3 = 0 Then decmin
If PORTA.4 = 0 Then incmin ' Last 2 buttons set minute
If PORTA.1 = 0 Then dechr
If PORTA.2 = 0 Then inchr ' First 2 buttons set hour
pause 50
Goto VER_BOTOES

'*************************************************
' Increment minutes
incmin: minute = minute + 1
If minute >= 60 Then
minute = 0
Endif
Goto debounce

' Increment hours
inchr: hour = hour + 1
If hour >= 24 Then
hour = 0
Endif
Goto debounce

' Decrement minutes
decmin: minute = minute - 1
If minute >= 60 Then
minute = 59
Endif
Goto debounce

' Decrement hours
dechr: hour = hour - 1
If hour >= 24 Then
hour = 23
Endif
goto debounce
'************************************
'essa é uma parte da rotina de acerto do relogio
debounce: 'atualiza o relogio na tela na hora do acerto do relogio
pause 200
tempo= 90
lcdout $fe,1
Lcdout $fe,2
Lcdout "Acerte Horario:"
lcdout $fe,$c0
Lcdout dec2 hour, ":", dec2 minute, ":00"
goto VER_BOTOES
'************************************

'*************************************
GRAVAR_HORARIO:
'Converte para Hexadecimal
DAY = 26
MONTHY = 4
YEAR=06

M = MINUTE/10*16 + MINUTE//10
H= hour/10*16 + hour//10
D= DAY/10*16 + DAY//10

Mn= MONTHY/10*16 + MONTHY//10
Y = YEAR/10*16 + YEAR//10

I2cwrite SDA,SCL,%10100001,2,[0]
I2Cwrite SDA,SCL,%10100001,3,[M]
I2Cwrite SDA,SCL,%10100001,4,[H]
I2CWRITE SDA,SCL,%10100001,5,[D]
I2CWRITE SDA,SCL,%10100001,6,[Mn]
I2CWRITE SDA,SCL,%10100001,7,[Y]
RETURN
'************************************
End
- 27th February 2006, 12:24
Peder

Please give your code... It will be easier to see your problem ...
- 27th February 2006, 13:32
uludere72

here is my PFC code!!
I solved my problem changin PFC8583 to DS1302 :-)

Define LOADER_USED 1
;Define OSC 20
Define LCD_DREG PORTD ' Define LCD connections
Define LCD_DBIT 4
Define LCD_RSREG PORTE
Define LCD_RSBIT 0
Define LCD_EREG PORTE
Define LCD_EBIT 1

SCL var PORTC.1
SDA var PORTC.3

UP var PORTB.0
DOWN var PORTB.1

temp var word
count_remain var byte
countPerC var byte

Menusay var Byte

LoBATT var byte
TMP var byte

sec var bit
'B0 var byte
S var byte
M var byte
H var byte
D var byte
W var byte
Mn var Byte
Y var byte
'ADCON1=7
'pause 100
s=0
M=0
h=0
d=0
W=0
Mn =0
Y = 0
adval var byte ' Create adval to store result

TRISA = %11111111 ' Set PORTA to all input
ADCON1 = %00000100 ' Set PORTA analog

Low PORTE.2 ' LCD R/W line low (W)
Pause 100 ' Wait for LCD to start up

OPTION_REG.7=0 ' pull direncleri aktif
TRISB=%00001111
PORTB=0

ADCON1=7
pause 100
I2Cwrite SDA,SCL,$A2,2,[S,m,h,d,W,MN,Y]
pause 50
main:

' goto main

'Lcdout $fe, 1 ' Clear screen
Lcdout $fe, 1 ,"Clock" ' Clear screen
pause 1000
TRISA=%00001110 ' port a 0 cıkıs 1 giris yapıldı
LOW PortA.0
menusay=0
mainloop:

if UP = 0 then
pause 50
IF MenuSay < 3 then
Menusay = Menusay+1
Lcdout $fe, 1,"MENU", dec menusay
pause 500

Gosub SetupMenu
else
menusay=0
endif
endif

if menusay = 0 then
GOsub SAAT

endif

Goto mainloop ' Do it all forever

''' SAAT RUTINI

SAAT:
' Lcdout $fe, 1, " OKUNUYOR"
' pause 1000
toggle sec

i2cread sda,scl,$A1,2,[S] 'sn
i2cread sda,scl,$A1,3,[M] 'dakika
i2cread sda,scl,$A1,4,[H] 'saat

'

Lcdout $fe, $c0,"Saat:",hex2 (H),":",hex2( M),":",Hex2 (S )
pause 250
return

SetupMenu:

Select Case MenuSay

'Case 1; Baslangis sicakligi

case 1 ; Saat Ayar

DevamSaat:
'Read 4,H ' epprom 1
'Lcdout $fe, 1,"S :" ,Dec (H)

' call RTC_write

Gosub ArtirAzalt
IF up = 0 and down=0 then goto CikisSaat
goto DevamSaat
cikisSaat:
Lcdout $fe, 1,"SET :S:" ,Dec (H)

'gosub RTCWrite
I2Cwrite SDA,SCL,$A1,4,[h]
pause 250

case 2 ; dakika ayar
DevamDakika:

Gosub ArtirAzalt
' i2CWrite sda,scl,$A2,3,[M] 'saat
'

IF up = 0 and down = 0 then goto CikisDakika

goto DevamDakika
cikisDakika:
Lcdout $fe, 1,"Dk Set"
'gosub rtcWrite
I2Cwrite SDA,SCL,$A1,3,[m]
pause 250
'Case 4 ; Gun Ayarla

'Case 5 ; Ay ayarla
Case 3 ;save
Lcdout $fe, 1,"Setup OK"
pause 1000
menusay = 0

end select

Return
;????????????????????????????????????????????????? ????????????????????????

;Azaltma Artirma Rutinleri
ArtirAzalt:

;Sıcalik Artir
Select Case Menusay

case 1 ' Saat
if up = 0 then
pause 50
if H = 23 then
H =0
else
H = H + 1
endif
endif
If Down = 0 then
pause 50
if H = 0 then
H = 23
else
H = H -1
Endif
endif
Lcdout $fe, 1,"Saat", dec H
pause 250

case 2 ' Dakika
if up=0 then
pause 50
if m = 59 then
m =0
else
m = m + 1
endif
endif

If Down = 0 then
pause 50
if M = 0 then
M = 59
else
m = m -1
Endif
endif
Lcdout $fe, 1,"Dakika", dec M
pause 250
end select
Return

RTCWrite:

tmp=S
S=(tmp dig 1<<4)+(tmp dig 0)
tmp=M
M=(tmp dig 1<<4)+(tmp dig 0)
tmp=H
H=(tmp dig 1<<4)+(tmp dig 0)
tmp=D
D=(tmp dig 1<<4)+(tmp dig 0)
tmp=MN
MN=(tmp dig 1<<4)+(tmp dig 0)
tmp=Y
Y=(tmp dig 1<<4)+(tmp dig 0)

I2CWRITE SDA,SCL,$A1,2,[S,M,H,D,W,MN,Y] 'Write parameters to RTC
pause 50
return

end