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booting from ROM
- To: eCos discussion <ecos-discuss at sources dot redhat dot com>
- Subject: [ECOS] booting from ROM
- From: Warren Jasper <Warren dot Jasper at bops dot com>
- Date: Tue, 9 Oct 2001 13:12:32 -0400
I know this has been asked before, but could someone please tell me
EXACTLY what needs to be done from going from a RAM build to a ROM BUILD?
I'm on a custom board that uses the SA1110, very close to the assabet or
brutus
boards.
I have built redboot, gdb_module.bin and applications. Now I just want a
ROM standalone version of an application. I tried the following:
1. In my ecos.ecc file, I changed the user value of the
CYG_HAL_STARTUP component to
user_value ROM
2. ecosconfig tree
make
3. I then pointed my install directory to the new ROM install, and remade
the hello program, but used diag_printf("Hello World\n");
4. then I ran
arm-elf-objcopy -O binary hello hello.bin
5. Jflash hello.bin (copies the binary image into FLASH)
6. launch minicom
7. push the little red button ... (nothing)
I also put a diag_printf towards the end of my hal to see if something would
happen,
but I just get a blank space on the screen on reboot.
Any suggestions?
Thanks,
Warren