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  1. Replies
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    Re: Leaves the mainloop???

    Well I feel like an idiot.

    I connected a 2.5 ohm 100 watt resistor as my load instead of the electronic load (5 amps).

    No issues....works like it should. So the electronic (programmable) load...
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    Re: Leaves the mainloop???

    The massive output FETs are to supply 12V to service vehicle equipment. Its an automotive environment, but - by the time it gets to my circuit, the voltage is isolated from the alternator noise, etc,...
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    Re: Leaves the mainloop???

    My personality is hurry up and ask questions and get an answer. I need to slow down and think of my questions first and organize them. I want the asnwer in miliseconds - lol.

    no no no - asking me...
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    Re: Leaves the mainloop???

    9444


    see attached - do I own an oscillopscope I was asked? This is my proto lab.

    I'm 67 years old who survived open heart surgery 4 months ago at NU hospital in Chicago, so not in the mood...
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    Re: Leaves the mainloop???

    uncle.... do they have that expression down under? It means enough...
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    Re: Leaves the mainloop???

    Is there a way to kill a thread?
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    Re: Leaves the mainloop???

    9441

    here's rough schematic again - sorry for the wild goose chase guys - really appreciate the help.

    Q2 is only driving the gate of some P channel mosfets. With the load attached to the drain...
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    Re: Leaves the mainloop???

    The schematic shows it drives 2 P channel Mosfets which supply power to a resistor load. - the 10k and 6k on the collector drive the gate when the npn is on.

    The odd thing about this is when it...
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    Re: Leaves the mainloop???

    I should just say 12V, not IG - its 12V
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    Re: Leaves the mainloop???

    yes - thats my test code
  11. Replies
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    Re: Leaves the mainloop???

    DC electronic load - it works at 1 amp - any higher it fails (PIC cant drive the base).. no noise - PS can handle 20 amps.. The base of the npn must be sinking too much current for the PIC pin to...
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    Re: Leaves the mainloop???

    9439

    see attached - I changed to LATs as suggested but I still cannot drive the base of my npn with the load in. If I remove the load and turn the FET on - its ok.

    I dont get it.


    #CONFIG...
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    Re: Leaves the mainloop???

    I need porta.2 to be a analog input - the rest are not analog - so how do I do that?
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    Re: Leaves the mainloop???

    please email me if you can - easier to explain and I'd like to talk for 5 mins
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    Re: Leaves the mainloop???

    Here's what I need


    A0 - Led1 output
    A1 - led2 output
    A2 - Analog in
    A3 - CLR
    A4 - TTL Output to turn on FET
    A5 - Input (TTL)
  16. Replies
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    Re: Leaves the mainloop???

    yout lat code worked but...

    I used this

    WDTE_OFF and it didnt come out of mainloop - worked

    I also tried this

    PWRTE_OFF - and I was able to write to my fet which had a load connected to...
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    Re: Leaves the mainloop???

    didnt help..

    OUTPUT PORTA.4
    OUTPUT PORTA.1

    HIGH PORTA.1
    PAUSE 10000


    mainloop:
  18. Replies
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    Leaves the mainloop???

    I'll ask again - why does my program leave the mainloop?

    porta.1 goes high and low..continuously


    OUTPUT PORTA.1
    OUTPUT PORTA.4

    HIGH PORTA.1
    PAUSE 10000
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