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Thread: Inchworm ICD2 Bootstrap loader BETA

  1. #1
    William At MyBlueRoom Newbie
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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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    Bill
    Home of the
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  2. #2
    BeeBop Excellent BeeBop Excellent BeeBop Excellent BeeBop Excellent BeeBop Excellent BeeBop Excellent
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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

  3. #3
    mramos1 Excellent mramos1 Excellent mramos1 Excellent mramos1 Excellent
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    Happy Birthday Bill..

    Still like a blue board..

    BeeBop: ditto..

  4. #4
    Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent
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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.

  5. #5
    William At MyBlueRoom Newbie
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    Been here since 61
    Bill
    Home of the
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  6. #6
    Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent
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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.

  7. #7
    mramos1 Excellent mramos1 Excellent mramos1 Excellent mramos1 Excellent
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    Late 59 here, so about 400 days before you here..

  8. #8
    BeeBop Excellent BeeBop Excellent BeeBop Excellent BeeBop Excellent BeeBop Excellent BeeBop Excellent
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    Shoot, early '56, but I am only 25 years old!

  9. #9
    Mike, K8LH Excellent Mike, K8LH Excellent Mike, K8LH Excellent Mike, K8LH Excellent Mike, K8LH Excellent Mike, K8LH Excellent Mike, K8LH Excellent
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    Happy Birthday Bill, you old codger (grin).

    Mike

  10. #10
    William At MyBlueRoom Newbie
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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.
    Bill
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  11. #11
    Mike, K8LH Excellent Mike, K8LH Excellent Mike, K8LH Excellent Mike, K8LH Excellent Mike, K8LH Excellent Mike, K8LH Excellent Mike, K8LH Excellent
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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

  12. #12
    mramos1 Excellent mramos1 Excellent mramos1 Excellent mramos1 Excellent
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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.

  13. #13
    William At MyBlueRoom Newbie
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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.
    Bill
    Home of the
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    http://www.blueroomelectronics.com

  14. #14
    phalanx Newbie
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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?"

  15. #15
    Matt(Pic progger) Newbie
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    Wow, I thought I was old (1968)!!! You have made my day! Happy Birthday!!
    Regards


    MATT!

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