Sridhar k wrote:
Hi everyone,
Am trying to load a simple hello world program after loading the
Redboot image into my LPCE2214 target(host is windows/cygwin).
The redboot image seems to be working fine.am able to ping the board
from the host and also i can ping the host from the target board
(from redboot prompt in terminal app). And here are the some redboot
command outputs for ref..
*******************************
Non-certified release, version UNKNOWN - built 03:05:23, Oct 19 2006
Platform: Olimex LPC-E2294 development board (ARM7TDMI)
Copyright (C) 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.RedBoot(tm)
bootstrap and debug environment [ROM]
Copyright (C) 2003, 2004, 2005, 2006 eCosCentric Limitedrelease,
version UNKNOWN - built 03:05:23, Oct 19 2006
RAM: 0x81000000-0x81100000, [0x8100cce0-0x810ed000] available
Platform: Olimex LPC-E2294 development board (ARM7TDMI)
FLASH: 0x80000000 - 0x80100000, 16 blocks of 0x00010000 bytes each.
2000, 2001,
RedBoot> fis list
Name FLASH addr Mem addr Length Entry point
RedBoot 0x80000000 0x80000000 0x00020000 0x00000000
FIS directory 0x800F0000 0x800F0000 0x0000F000 0x00000000
RedBoot config 0x800FF000 0x800FF000 0x00001000 0x00000000
RedBoot>
RedBoot> channel
Current console channel id: 0
*******************************
/* this is a simple hello world program */
#include <stdio.h>
#include <cyg/kernel/kapi.h>
#include <cyg/infra/diag.h>
#include <cyg/io/io.h>
int main(void)
{
diag_printf("Hello, eCos world!\n");
return 0;
}
*******************************
I h've compiled this hello.c using the Makefile from exapmles
directory and made the "hello.srec" from "hello.o" using the
arm-elf-objcopy.
I have loaded this hello.sre file using the folowing command from
windows hyperterminal redboot promt.
*******************************
RedBoot> load -m ymodem -b 0x81010400
CCCAddress offset = 0x81010400
Entry point: 0x81010400, address range: 0x81010400-0x81010420
xyzModem - CRC mode, 2(SOH)/1(STX)/0(CAN) packets, 5 retries
RedBoot>
RedBoot> go
*******************************
$ arm-elf-size hello.srec
text data bss dec hex filename
0 52 0 52 34 hello.srec
after loading this when i give "go" command its hanging..its coming
out of this hang state only if i reset the target.
Please correct me if am doing any thing wrong.Please suggest.
Why are you forcing the address? eCos programs are not position
independent and the code needs to load at the address it was linked
to run at. Try the 'load' command without the '-b XXX' option and
see what happens.
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
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