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Re: [avr-chat] avrdude fails to write STK500 & AT90S8515
From: |
Joerg Wunsch |
Subject: |
Re: [avr-chat] avrdude fails to write STK500 & AT90S8515 |
Date: |
Fri, 14 Sep 2007 23:30:40 +0200 (MET DST) |
jmonreal <address@hidden> wrote:
> PS: I've tried windows but avr studio told me something about ISP
> frequency mistaken :s
I guess this is also exactly your problem with avrdude. What CPU
frequency is your AVR running at? The ISP frequency must be below 1/4
of the CPU frequency. This is a non-volatile parameter in the STK500
itself. You can set it interactively in ``terminal mode'', i.e. by
running avrdude with the -t option. For a start, try something like
10 µs ISP clock period, that would be appropriate for CPU frequencies
of 500 kHz and above.
--
cheers, J"org .-.-. --... ...-- -.. . DL8DTL
http://www.sax.de/~joerg/ NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)