PFC8583 Connection and I2Cwrite I2cread!

[uludere72]

pfc 8583 is counting 1 minute in 2 minute ?
and second is counting to 99?

[ffambrin]

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