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Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?


From: Vincent Trouilliez
Subject: Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?
Date: Sun, 28 Jun 2009 23:49:15 +0200

On Sun, 28 Jun 2009 23:18:34 +0200 (MET DST)
address@hidden (Joerg Wunsch) wrote:

> IIRC, the Dragon ships with a terribly slow default ISP rate.  Bump
> it, either using the "sck" command of the terminal mode in avrdude, or
> with the -B option.  A good default value is 10 µs SCK period, this
> is safely below the < 250 kHz requirement to handle AVRs shipping with
> the 1 MHz RC oscillator.
> 
> For ISP, the SCK period value is "sticky" in the Dragon's EEPROM, so
> it will default to the value used last time.


Thanks Joerg. Unfortunately, neither option seem to have any effect on
the transfer speed of the Dragon. Target (ATmega32) runs at 16MHz, so
it's not a limiting factor. Well maybe my Dragon is defective...
mmpffff....


--
Vince




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