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Thread: Inchworm ICD2 Bootstrap loader BETA

  1. 29th July 2006 03:00 PM #1
    William At MyBlueRoom
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    Default Inchworm ICD2 Bootstrap loader BETA

    I've yet to test it. Today is my Birthday and kinda busy

    But I've cobbled together a simple schematic to make the Inchworm temporarily a sort of JDR style programmer. It's in TESTING and may not work but I've posted it for your study / amusement / suggestions...

    You will need to hook up your blank 16F877(A) to an external programming socket on the ICD connector (CON1). And currently I'm using a 100K pulldown to GND resistor on CON1 pins 1,2 at the target device (MCLR)

    It inverts most of the RS232 signals but fortuneately the Pony Prog software http://www.lancos.com/prog.html allows for inversion of the I/O pins on your COM port. (I'm using the JDR mode).

    If I / we can get it working it might be just the thing for those of you whom cannot get their hands on a programmer for the Inchworm (ICD2) Bootstrap BL010101.HEX file.

    PS don't forget I've moved my page http://www.blueroomelectronics.com, please reset your bookmarks!!!
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  2. 30th July 2006 01:05 AM #2
    BeeBop
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    Hi William,
    I'm not here to comment on the project, but rather to wish you a Happy Birthday! (At my age, I deny all birthdays!)
    Regards,
    Robert
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  3. 30th July 2006 02:56 AM #3
    mramos1
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    Happy Birthday Bill..

    Still like a blue board..

    BeeBop: ditto..
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  4. 30th July 2006 02:59 AM #4
    Pommie
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    Happy Birthday, may I ask how many years you have graced the planet with your presence?

    As to the problem of getting a bootloader into an ICD clone, why not use LVP as outlined on Lothars Page.

    Mike.
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  5. 30th July 2006 04:16 AM #5
    William At MyBlueRoom
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    Been here since 61
    Bill
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  6. 30th July 2006 04:29 AM #6
    Pommie
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    Quote Originally Posted by William At MyBlueRoom
    Been here since 61
    I get here before you then by just over 1K days (1037 to be exact).

    Mike.
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  7. 30th July 2006 11:37 AM #7
    mramos1
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    Late 59 here, so about 400 days before you here..
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  8. 30th July 2006 12:38 PM #8
    BeeBop
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    Shoot, early '56, but I am only 25 years old!
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  9. 30th July 2006 01:51 PM #9
    Mike, K8LH
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    Happy Birthday Bill, you old codger (grin).

    Mike
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  10. 30th July 2006 04:20 PM #10
    William At MyBlueRoom
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    Quote Originally Posted by Pommie
    As to the problem of getting a bootloader into an ICD clone, why not use LVP as outlined on Lothars Page.
    Mike.
    RB3 is used for the BUSY LED, we'd lose that. It's also a little bit of a fun challenge too.

    I do like the JDM software though.
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  11. 30th July 2006 05:22 PM #11
    Mike, K8LH
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    Yeah, but once you get the BL installed and the ICD2 up-n-runnin' you simply program another '877A with LVP off and replace that first '877A in the ICD2.

    Anyone heard if Mramos1 got his ICD2 working yet?

    Mike
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  12. 30th July 2006 09:43 PM #12
    mramos1
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    Mike K8LH, no running board yet. I have not etched the new board. I can etch the new one, I was tied up on business and other work. I just pop in when I get up and go to bed (and free time with the kids I sneak in). I fixed my drilling issues. I have the old one part stuffed. Do you guys need me to load it up to test something? I have your chip/BL here.. If I can help let me know.
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  13. 31st July 2006 01:00 PM #13
    William At MyBlueRoom
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    Quote Originally Posted by Mike, K8LH
    Yeah, but once you get the BL installed and the ICD2 up-n-runnin' you simply program another '877A with LVP off and replace that first '877A in the ICD2.
    Mike
    For some I'm sure getting the bootloader on a chip is the hardest part.
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  14. 31st July 2006 05:44 PM #14
    phalanx
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    Quote Originally Posted by William At MyBlueRoom
    For some I'm sure getting the bootloader on a chip is the hardest part.
    I can see the questions now: "Why do I need a programmer to program my programmer?"
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  15. 31st July 2006 05:53 PM #15
    Matt(Pic progger)
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    Wow, I thought I was old (1968)!!! You have made my day! Happy Birthday!!
    Regards


    MATT!
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