Re: [ECOS] Congratulations and well done!

["AL Chane" <al_chane at issc dot com dot tw>]

Hi,

     As you mentioned previously, how did you deal with exception vectors
remapping in your ARM porting?

best regards,

Al

> > > 2) It also appears that vectors.S his hard wired to expect the
exception
> > > vectors at address 0.  I can understand why this is the case, since
the
> > > processor is hard wired to find its vectors at this address, but some
> > > processors offer a means to change the default vector location to high
> > > memory.  Or, in my case, I might have a ROM at address 0 that
> > > branches to a RAM vector table.  (Yes, I know this is more expensive
> > > than having RAM at address 0 and less correct/elegant than using the
> > > MMU to map RAM to address 0, but it's what I have today).  How
> > > difficult would it be for me to add a CDL option to allow the vectors
> > > to be remapped to an arbitrary (correctly aligned) address?  Am I
> > > setting myself up for failure if I attempt this?

----- Original Message -----
From: "Patrick Doyle" <wpd@delcomsys.com>
To: <ecos-discuss@sources.redhat.com>
Sent: Wednesday, November 27, 2002 6:26 AM
Subject: [ECOS] Congratulations and well done!


> I just wanted to say congratulations and well done to the designers and
> developers of eCos.  In less than a day, I was able to bring up a RedBoot
> prompt on a new (ARM) platform.  Less than two hours later, I was able to
> store, load, and run a program to/from flash.  In contrast, it took me a
> week just to get the serial port and flash devices working well enough to
> provide me with a load-and-go S-record loader that I used to load in my
> RedBoot image.
>
> I couldn't have done this without the countless manhours of effort that
have
> gone into this such a reliable product.  Thank you for making me look good
> :-)
>
> Now, if I could just get the MMU figured out...
>
> --wpd
>
>
> --
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> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
>
>
>


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