[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [avrdude-dev] avrftdi TPI support
From: |
Hannes Weisbach |
Subject: |
Re: [avrdude-dev] avrftdi TPI support |
Date: |
Fri, 3 May 2013 21:49:08 +0200 |
Am 03.05.2013 um 09:26 schrieb Joerg Wunsch:
> As Joerg Wunsch wrote:
>
>> Other AVRs require the HV on /RESET to be in the range of 11.5 through
>> 12.5 V. You have to measure the current consumption, but after all,
>> this is a MOS input only, so I wouldn't expect it to draw much beyond
>> of about 1 µA.
>
> Actually, it's more. I measured about 550 µA @ 12 V, but with a
> few 100 mV more, it could be about 2 mA already.
Hm. Too much current to supply from TPICLK (it's not running continuously).
Well, a ring oscillator/voltage tripler, then.
Hannes
Re: [avrdude-dev] avrftdi TPI support, Ing. Daniel Rozsnyó, 2013/05/05