Re: [ECOS] Run Redboot from flash

["Ricardo Andrino" <ricardo_andrino@web.de>]

Hello and thank you again, I will do what you say.
Now i am running redboot fron RAM and try to run the hello program. I have made the following:

1)Convert the elf image (with no extension or .elf or .exe) to Binary (.bin) image:
for ARM:
$arm-elf-objcopy -O binary hello hello.bin

2)Open terminal:
for Linux: Open minicom
$ minicom

3)Set the baud rates & other Uart parameters:
usualy 38400 baud + 8bits + no parity + no handshake. Hardware and Software flow control NO.

4)RedBoot> load -r -m xmodem -b 0x000200c0 ( first memory zone available after download redboot_RAM.elf) 

5)After issuing the command send the .bin file using XMODEM protocol:
for Linux (minicom):
issue send file command <Cntl+A, S>, select "send xmodem", type the path to the file (.bin) & send

6)At the Redboot prompt "RedBoot> " issue the 'go' command:
RedBoot> go 0x20100( after 40 position for vectors, i am not sure about this, should be 0x000200c0?)

I should see the application running & the outputs on the terminal window but no output is diplayed but the led D3 light.........(EB40A)

I have made correct the redboot_RAM.elf, connecto to redboot, a hello RAM aplication etc, etc....

Any ideas?

Thanks in advance.







Nick Garnett <nickg@ecoscentric.com> schrieb am 11.12.03 12:35:45:
> 
> <ricardo_andrino@web.de> writes:
> 
> > Hello,
> >
> > I have built redboot (RAM start up mode) and i have followed
> > all the instructions for EB40A board.All run correct but after
> > programming the flash memory( fi wr -f 0x01100000 -b %{FREEMEMLO} -l
> > 0x10000), the Prompt Redboot> doesn't allow me to type any command
> > (hangs up)and when i set JP1 to the user position and make a reset,
> > all leds light and redboot doesn't allow me to type any command
> > too. Any idea?
> > 
> > Once Redboot is good installed in flash the way to run it is typing
> > minicom and a redboot prompt must on the screen?
> > 
> 
> If you are seeing RedBoot output the prompt then it should be ready to
> accept input. It is very rare for one direction to work and the other
> not. Check that minicom is not set up to expect hardware flow
> control. Presumably you loaded a RAM RedBoot via Angel and then
> downloaded and flashed the ROM RedBoot using that. If the RAM RedBoot
> worked I cannot see why the ROM one fails. Try rebuilding the ROM
> RedBoot from scratch, in a clean directory, it's a longshot but maybe
> it was misconfigured in some way.
> 
> 
> -- 
> Nick Garnett                    eCos Kernel Architect
> http://www.ecoscentric.com      The eCos and RedBoot experts
> 
> 
> -- 
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> 


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