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

[Joerg Wunsch]

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. ;-)