Re: [avrdude-dev] avrftdi TPI support

[Joerg Wunsch]

As Hannes Weisbach wrote:

> > 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.

Or, just leave it to the user to supply the 12 V externally when
they need to handle a disabled /RESET pin.  After all, other
TPI-capable programmers (like the AVRISPmkII) don't handle this
either.
-- 
cheers, Joerg               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)