Top2004 Programmer and PIC Programming

Discussion in 'Embedded Systems and Microcontrollers' started by bjlevine, Mar 22, 2012.

  1. bjlevine

    Thread Starter New Member

    Mar 22, 2012
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    I have a Top2004 programmer which I use to program PIC16C55A MCUs. I've had no problem for the last couple of years, but all of the sudden, it seems to only write the first 512 bytes of code to the chip. I haven't changed any settings in the software. I'm assuming that the programmer has gone bad, but if anyone has any suggestions, I'd love to hear them.
     
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    The number "512" is suspiciously a clue as it is a power of 2. Mayhaps there is a bad address line that resets the unit when it should just go high. Or mebby the hex file (if one is used) or the master PROM is gone wrong.

    You can get one off EBay for 57 bucks.
     
  3. bjlevine

    Thread Starter New Member

    Mar 22, 2012
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    Thanks for the reply. I've already purchased a Genius G540 programmer, which seems to do the job, if I can just decipher the documentation. I much preferred the TopWin software to the program that came with the G540, so I may consider picking up another one.

    Does anyone make an inexpensive programmer that works in WIndows 7 64-bit?
     
  4. t06afre

    AAC Fanatic!

    May 11, 2009
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    The PICKIT 3 is a good and cheap programmer. It should work in windows 64 bit. But only for flash based chips
     
  5. spinnaker

    AAC Fanatic!

    Oct 29, 2009
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    PicKit 3 does not support the PIC16C55A.


    But I would suggest to the OP to get a new chip and a new programmer (Pickit 2 or 3).
     
  6. t06afre

    AAC Fanatic!

    May 11, 2009
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    Actually I made that reservation
    Funny I have not seen that OTP variants for some years now. I may be that Microchip still make them. But they will be costly like the 16f84 chip. I think it is time to update to newer and cheaper PICs
     
    Last edited: Mar 24, 2012
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