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Re: [avr-chat] Load on programming pins
From: |
Adam Wysocki via ArcaBit |
Subject: |
Re: [avr-chat] Load on programming pins |
Date: |
Wed, 4 Jul 2007 17:23:29 +0200 (CEST) |
03.07.07 address@hidden wrote:
> >> Also, large MOSFETs have great capacitance of gate, so great current
> >> needed to recharge it during programming. It's ok with 2N7002 (50pF),
> >> but something with 400 pF and more would probably fail.
>
> > Are you talking about loads on pins used in programming (miso, mosi, sck)
>
> Yes, that's it.
>
> > or on other pins? If the second, aren't they in hi-z state when reset pin
> > is active?
>
> Yes, they are.
I think that Vincent was talking about pins not used in ISP programming:
"you mean that programming fails if the AVR drives an LED on one of its
(ISP un-related) pins ?"
--
[ Adam Wysocki, +48 22 532 69 07, +48 514 710 213, www.chmurka.net ]
[ Software Research and Development Department, ArcaBit Sp. z o.o. ]
[ Ul. Fortuny 9, 01-339 Warszawa, Poland * http://www.arcabit.com/ ]
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- Re: [avr-chat] Load on programming pins,
Adam Wysocki via ArcaBit <=
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