AW: [ECOS] Huge memory footprint for a simple "hello world"

Socrates Socrates socrates.socrates@gmail.com
Mon Jun 12 13:15:00 GMT 2006


> Please keep your replies on the list so that all may benefit (and help).
Being newbie and all...thanks for that advice.

> There are explicit instructions for how to do this in the eCos
> documentation - have you followed them completely?
I am following the instructions
(http://ecos.sourceware.org/docs-latest/redboot/at91.html) to the word
with no sucess. Here are my steps:

1. arm-elf-gdb redboot.elf
~/work/atmel/020606-ARM/install/bin$ arm-elf-gdb redboot.elf
GNU gdb 5.3 (eCosCentric)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "--host=i686-pc-linux-gnu --target=arm-elf"...
(gdb) tar rdi /dev/ttyS0
Angel Debug Monitor (serial) 1.04 (Advanced RISC Machines SDT 2.5) for
AT91EB40 (2.00)
Angel Debug Monitor rebuilt on Apr 07 2000 at 12:40:31
Serial Rate:   9600
Connected to ARM RDI target.
(gdb) set $cpsr=0xd3
(gdb) load
Loading section .rom_vectors, size 0x40 lma 0x2020000
Loading section .text, size 0xb1bc lma 0x2020040
Loading section .rodata, size 0x1c37 lma 0x202b1fc
Loading section .data, size 0x404 lma 0x202ce34
Start address 0x2020040, load size 53815
Transfer rate: 6425 bits/sec, 498 bytes/write.
(gdb) cont
Continuing.

[3]+  Stopped                 arm-elf-gdb redboot.elf

Here I start minicom so I can load redboot.srec (I even desperately
tried redboot.img/bin)
~/work/atmel/020606-ARM/install/bin$ minicom -o

Welcome to minicom 2.1

OPTIONS: History Buffer, F-key Macros, Search History Buffer, I18n
Compiled on Nov  4 2005, 18:10:30.

Press CTRL-A Z for help on special keys

RedBoot> ver

RedBoot(tm) bootstrap and debug environment [RAM]
Non-certified release, version v2_0 - built 13:29:20, Jun  5 2006

Platform: Atmel AT91/EB40 (ARM7TDMI)
Copyright (C) 2000, 2001, 2002, Red Hat, Inc.

RAM: 0x02000000-0x02080000, 0x02033428-0x0207f000 available
FLASH: 0x01010000 - 0x01020000, 256 blocks of 0x00000100 bytes each.

RedBoot> load -m xmodem -b %{FREEMEMLO}

Address offset = 0x00013800
Entry point: 0x02033840, address range: 0x02033800-0x02040a38
xyzModem - CRC mode, 1264(SOH)/0(STX)/0(CAN) packets, 3 retries

RedBoot> fis wr -f 0x01010000 -b %{FREEMEMLO} -l 0xd238

* CAUTION * about to program FLASH

            at 0x01010000..0x0101d2ff from 0x02033800 - continue (y/n)? y

... Erase from 0x01010000-0x0101d300:
............................................................................................................
................................................................................
... Program from 0x02033800-0x02040b00 at 0x01010000:
............................................................................................
................................................................................
RedBoot>

After this step I set SW1 (on the EB40 board) to UPPER MEM then press
restart and nothing happens, meaning no output.


Thanks.

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