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Re: [avr-chat] ATMEL AVR UART Bootloader for AVR-GCC/avr-libc on ATmega1
From: |
Joerg Wunsch |
Subject: |
Re: [avr-chat] ATMEL AVR UART Bootloader for AVR-GCC/avr-libc on ATmega16 with avrdude |
Date: |
Fri, 15 Jan 2010 23:36:09 +0100 (MET) |
Alex Eremeenkov <address@hidden> wrote:
> I haven't board near now, so can't check that i got from latest
> avrdude. But first difference that i see it's a that your
> bootloader return correct buffer size for memory access with better
> h/w and s/w version.
I think that's been only an issue in your very old AVRDUDE version
(5.1). I bet AVRDUDE 5.8 did already much better in that respect.
>>> Programmer supports the following devices:
>>> Device code: 0x80
>>> Device code: 0x75
>> That's suspicious. A bootloader should never announce support for
>> more than a single MCU type.
> So in my case, it success with code 0x75, other one just ignored.
Yes, but a bootloader cannot possibly run on more than a single MCU
type (at any particular point in time). Offering a list of device
codes was intended for the AVR910 standalone programmer (and was a big
misconception anyway, so now, the device signature is used instead),
but makes no sense for a bootloader.
Martin Thomas' bootloader reported only one device code for me, but
more than one in your case. So I think you did something different
here.
> Can i ask you to run your avrdude again with additional -vvvv option
> and sent result full log to my email?
Will do in private mail, to not clutter the list.
Btw., I just released AVRDUDE version 5.9. The log I'll send to you
is from that version.
--
cheers, J"org .-.-. --... ...-- -.. . DL8DTL
http://www.sax.de/~joerg/ NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)