On Tue, Nov 07, 2000 at 02:39:54PM -0000, Hugo Fiennes wrote:
> > it doesn`t seem to work, when i look at the comport (using an
> > comport-viewer) there is no traffic at
> > all from the host computer, the EP7211 does send the '<' or '>' char when
> > pussing reset/wakeup...
>
> You need to fit a link to set the 7211 to boot from its internal ROM to get
> the '<' prompt for internal memory load. Find the link, fit it, and then (at
> 9600bps) hit reset then wakeup. You *should* get the prompt.
The three conditions are:
-- JP2 (boot enable) should be jumpered. It's just above the keyboard,
on the left.
-- You should be using a crossover ("null modem") serial cable, not
straight-through.
-- The PC side should be set up as 9600 baud, 8N1.
With all this in place, you should see the prompt upon hitting wakeup.
If you don't trust your terminal program, try 'cat /dev/ttyS0' (or
wherever you have your serial cable hooked up). You should be able
to see the '<'s that way.
> Personally, I'd be trying to use 2.4 if at all possible: the 7211 eval board
> has 16MB of ram which although segmented, has (I seem to remember) 2MB
> segment sizes, meaning all the clever stuff the crash&burn patches did to
> set up the MMU enough so that the kernel would fit in one physical DRAM page
> (which were only 512k on the Psion) aren't actually needed - you just need
> tweak the arch/arm/mm/mm-xxxx bits to show the actual memory organisation &
> the kernel will sort itself out.
Yup, the 7211 board just has two 8MB banks (both RAM and flash are
discontiguous this way).
miket
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