PFC8583 Connection and I2Cwrite I2cread!

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  1. - 20th February 2006, 11:17 #1
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    robert0
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    "and what must be min configuration for connecting PFC!
    I connected scl and SDA pin!"


    Did you put two resistors tied to VDD??

    roberto
  2. - 20th February 2006, 13:26 #2
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    i connected resistors..
    i couldn't read and write clock data from PFC?

    ps: i read previous topics but i couldn't find solution ...
  3. - 20th February 2006, 15:33 #3
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    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

    ....
  4. - 21st February 2006, 08:58 #4
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    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)
  5. - 24th February 2006, 07:34 #5
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    thx!

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

    please help !!
  6. - 24th February 2006, 12:17 #6
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    Default 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]
    ------------------------------------
  7. - 24th February 2006, 19:51 #7
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    thx elektroline!!
    i am going to send my problem on monday !!
  8. - 24th February 2006, 20:00 #8
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    Default ds1302 AND pfc8583

    pfc 8583 is counting 1 minute in 2 minute ?
    and second is counting to 99?
    Last edited by uludere72; - 24th February 2006 at 20:02.
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