12f629

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  1. - 13th March 2008, 00:24 #1
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    Question 12f629

    It looks like I'm going to be using a 12F629 for an application.

    Any warnings/surprises/secrets and/or obscure aspects I should be aware of?
    Russ
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  2. - 13th March 2008, 02:04 #2
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    Hi Russ,

    I have been using the 675 quite a bit lately and getting used to GPIO.X instead of PORT?.X is my only problem.
    Dave
    Always wear safety glasses while programming.
  3. - 13th March 2008, 08:08 #3
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    Quote Originally Posted by RussMartin View Post
    It looks like I'm going to be using a 12F629 for an application.

    Any warnings/surprises/secrets and/or obscure aspects I should be aware of?
    We are using thousands of F629 in a month.

    The only issue we have is with the chip's eeprom. Most of the time, the eeprom is not good.
    So, we return lots of them; and this is time consuming.

    When we use F675, we do not get any bad eeprom issue.

    So, if you have lots of "write" routines in your application, I would say, go with F675.

    F675 is more expensive then F629 ( for us it is; for some other is does not matter).
    "If the Earth were a single state, Istanbul would be its capital." Napoleon Bonaparte
  4. - 13th March 2008, 15:13 #4
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    Be sure to turn off the analog comparators if you don't want them. Default has them turned on.

    sayzer, that's odd. I don't use thousands a month, but I do use hundreds a month. I use the eeprom area quite aggressively and so far (knock on wood) I have yet to find an eeprom issue with the 12F629's. This is what I make and sell: http://www.york-electronics.com/
  5. - 13th March 2008, 16:24 #5
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    Hi, "JD123"

    I think I've seen that gadget somewhere else ... but Where ??? ( LOL !!! )

    Welcome here , Gary !

    Alain

    PS : Those 12F629 are a Very Special Turkish batch ... like Sayzer's programmer ... ( a Special Turkish copy of the K149 from Kits'r us ... )
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
  6. - 13th March 2008, 16:56 #6
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    Hi Alain,

    Yep, I'm not know for being 'under cover' for very long.

    I wish I was named JD... who in their right mind thinks of "Gary" when they name their kids?
  7. - 13th March 2008, 17:03 #7
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    Quote Originally Posted by Acetronics View Post
    PS : Those 12F629 are a Very Special Turkish batch ... like Sayzer's programmer ... ( a Special Turkish copy of the K149 from Kits'r us ... )
    LOL! I just caught this. LOL
  8. - 13th March 2008, 17:27 #8
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    Quote Originally Posted by JD123 View Post
    Hi Alain,
    I wish I was named JD... who in their right mind thinks of "Gary" when they name their kids?
    What about Gary Gliter ???

    Not so bad ...

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
  9. - 13th March 2008, 17:34 #9
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    Quote Originally Posted by Acetronics View Post
    What about Gary Gliter ???

    Not so bad ...

    Alain
    Okay, I have to admit... it could be worse.
  10. - 14th March 2008, 19:02 #10
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    Thanks for the information, folks!

    It looks like I need a single analog port now, so I'll probably graduate to the 675.
    Russ
    N0EVC, xWB6ONT, xWN6ONT

    "Easy to use" is easy to say.
  11. - 15th March 2008, 17:55 #11
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    Hi, Russ

    If your Analog measurements are ... not so precise, or slow ...comparators AND the trimmable voltage ref , or the RCTime function can do it ...

    Without any ADCs ...

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
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