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Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?
From: |
Joerg Wunsch |
Subject: |
Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ? |
Date: |
Sun, 28 Jun 2009 23:18:34 +0200 (MET DST) |
Vincent Trouilliez <address@hidden> wrote:
> I do mean VERY slow. I timed it at a full minute for one single
> kilo byte of data from Flash.
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.
--
cheers, J"org .-.-. --... ...-- -.. . DL8DTL
http://www.sax.de/~joerg/ NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, (continued)
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Vincent Trouilliez, 2009/06/26
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, David Kelly, 2009/06/26
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Bill Gatliff, 2009/06/26
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Vincent Trouilliez, 2009/06/26
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, David Kelly, 2009/06/26
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Vincent Trouilliez, 2009/06/27
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Bill Gatliff, 2009/06/27
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Vincent Trouilliez, 2009/06/27
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Vincent Trouilliez, 2009/06/25
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Bill Gatliff, 2009/06/25
Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?,
Joerg Wunsch <=
Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Joerg Wunsch, 2009/06/28
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Vincent Trouilliez, 2009/06/28
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Daniel O'Connor, 2009/06/28
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Rogier Wolff, 2009/06/29
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Vincent Trouilliez, 2009/06/29
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, David Kelly, 2009/06/29
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Vincent Trouilliez, 2009/06/29
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Daniel O'Connor, 2009/06/29
- Re: [avr-chat] Dragon: mega slow at dumping Flash, normal ?, Vincent Trouilliez, 2009/06/29