[ECOS] Run Redboot from flash

Nick Garnett nickg@ecoscentric.com
Thu Dec 11 11:35:00 GMT 2003

<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

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