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Hot!"The target circuit may require more power than the debug tool can provide"

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Lucky Luka
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2019/05/06 01:40:33 (permalink)
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"The target circuit may require more power than the debug tool can provide"

Hi all
I cannot undertand why the message "The target circuit may require more power than the debug tool can provide" appears since I have said not to power the target circuit using pickit...
Can anyone help me to understand this issue?
Cheers

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#1

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    qhb
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    Re: "The target circuit may require more power than the debug tool can provide" 2019/05/06 02:17:14 (permalink)
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    Have you only just changed the setting?
    It does not take effect until you restart MPLABX, or take some other action that causes it to access the programmer.
    MPLAB8 was much more intuitive in this regard.
     

    Nearly there...
    #2
    Lucky Luka
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    Re: "The target circuit may require more power than the debug tool can provide" 2019/05/06 02:50:21 (permalink)
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    This setting was untouched since the beginning.
    I've programmed several times my PIC without problems but yesterday, trying a new project using (as always mplab x and xc8 and PIC18F4580) that message appeared. My last project involved more stuff than the previous ones involved (LCD 16x2, LEDs and a color sensor) but since I provide power to my breadboard I cannot understand what's the origin of this issue...
    #3
    PStechPaul
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    Re: "The target circuit may require more power than the debug tool can provide" 2019/05/06 12:07:16 (permalink)
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    I don't recall ever having seen that message about the parameter not going into effect until the next communication with the PICkit. I have just clicked "Apply" and the power is applied or removed as requested. But sometimes it is necessary to restart the USB connection, or close and re-open MPLABX, and even possibly rebooting the PC.

     
    #4
    qhb
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    Re: "The target circuit may require more power than the debug tool can provide" 2019/05/06 13:19:19 (permalink)
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    I'm going off previous reports on this forum, and that message displayed at the bottom of the image in the first post.
     

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    #5
    Lucky Luka
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    Re: "The target circuit may require more power than the debug tool can provide" 2019/05/09 06:45:25 (permalink)
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    Hi all
    For the sake of completeness of this thread I would like to say something more.
    It looks like that using a program of a friend of mine I had inadvertently activated the function that I previously said I haven't activated. In his mplab x ide my friend enabled the "power target circuit from PICkit3" option. When I used his program I even used his setting in my mplab x ide...
    So... problem solved.... I suppose...
    Cheers
    #6
    oliverb
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    Re: "The target circuit may require more power than the debug tool can provide" 2019/05/24 10:00:10 (permalink)
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    FWIW it seems to require clicking "apply" to make the change take effect. Clicking "OK" seemed to just change the project setting, but not actually act on it. This was probably in MPLAB X 4.05.
    #7
    NorthGuy
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    Re: "The target circuit may require more power than the debug tool can provide" 2019/05/24 10:34:46 (permalink)
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    When PICkit3 powers the board, it measures the voltage and if it's less than desired it display this message. If the board is already powered, the voltage you get may be lower than PICkit3 wants. Hence the message.
    #8
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