[ECOS] AW: EB42 AT91 redboot load problem

["Volker Kamp" <vk at volkerkamp dot com>]

> I've already searched the newsgroup/web for a solution of the
> following problem, found the question twice, but without any
> answer helping me.
>
> My system is an EB42 with an AT91 processor. I flashed redboot as
> documented with angel and gdb. The RAM-version of redboot was
> able to load srec-files. The ROM-version, which I flashed with
> the RAM-version, isn't able to load files. The failing command is
>
> RedBoot> load -m ymodem
> CCC
>
> I tried out every protocol (x and ymodem), two baud-rates (38400
> and 115200) without success and also the -r option with -b
> pointing to free RAM. Even tried DOS and UNIX EOLs for the srec-file.
>
> Using a single-line srec-file sometimes is ok.
>
> GDB runs fine over a 115200 baud link with that redboot!
>
> First lines of srec-file:
> S3150200800018F09FE518F09FE518F09FE518F09FE538
> S3150200801018F09FE50000000018F09FE518F09FE5B4
> S31502008020408000021C820002408200026C82000232
> S31502008030888200020000000088830002508300024A
>
> My redboot:
> RedBoot> version
> RedBoot(tm) bootstrap and debug environment [ROM]
> Non-certified release, version UNKNOWN - built 19:03:32, Jun 25 2004
>
> Platform: Atmel AT91/ACC01 (ARM7TDMI)
> Copyright (C) 2000, 2001, 2002, Red Hat, Inc.
>
> RAM: 0x02000000-0x02040000, [0x02006a00-0x02040000] available
> FLASH: 0x01000000 - 0x01200000, 32 blocks of 0x00010000 bytes each.
> RedBoot>
>
> Any ideas?

Seems to be a pure speed problem of redboot. After decreasing the waitstates
for the flash, the download with 38400 works. What a waste, the cpu core
runs at 33Mhz...

Volker

> Thanks in advance,
> Volker
>


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