Re: [Flashforth-devel] FlashForth on the ATmega2560

[Helge K. <Hel...@gm...>]

On 08.01.2023 08:20, Mikael Nordman wrote:
> Some thoughts.
>
> What is your output from avrdude -v -v ?
$ avrdude -v -v

avrdude: Version 7.0
          Copyright (c) Brian Dean, http://www.bdmicro.com/
          Copyright (c) Joerg Wunsch

          System wide configuration file is
"C:/Users/Helge/Bin/avrdude.conf"


avrdude: no programmer has been specified on the command line or the
config file
          Specify a programmer using the -c option and try again


> What is the md5 checksum of the hex file ?
$ md5 2560-16MHz-38400.hex
b196d7b782bc26ee11d26cb03a60f1ea (25,178)

> Mine is
> md5sum 2560-16MHz-38400.hex b196d7b782bc26ee11d26cb03a60f1ea
Looks as it is identical. I wouldn't expect anything else since I got
the file using git from github.

> Once  upon a time there was some ISP hardware (or avrdude version ?)
> that could not handle properly a hex file  where the first part is in the
> lower 128 Kbytes and the second part is in the higher 128 Kbytes of flash.
I connected a (Salea compatible) logic analyzer and recorded the traffic
at the ISP interface. The sigrok decoder outputs shows each byte in a
textual representation. I am currently converting this output to hex
file. I hope I can check what is going on on the ISP interface.

Best regards,
Helge