2008/9/5 ron minnich <rminnich@gmail.com>

On Fri, Sep 5, 2008 at 12:45 AM, Jackie Pan <jackiepan93@gmail.com> wrote:
> Hi all,
> I'm wondering if it's possible to place code into cache-emulated RAM, I
> tested on an intel T2300,
> after CAR setup, I can read/write to the mapped region, however code
> execution seems not working.
> Postcode reveals that the CPU seems to be spinning on the very first
> instruction in the 'RAM' region.
> Anyone could give some hints? thanks.

It is possible and it works. What you might do is dump the contents of
the CAR once you have copied to it and see what is there.

ron

I just got an XDP emulator, now the emulator tells me that the code has been correctly

copied to the CAR region, which is 0xc0000, I can see the code through both disassembly

window and the data window, but when I try to step on the first instruction, source-point

pops up a window saying 'memory access failed', then the emulator connection is lost.

btw, the simulator is an ARIUM ECM-XDP3, I've followed the advice in its manual to set

0xc0000 to be a SRAM region.

so, is the XDP lying to me? or I missed some points?

@Stefan: I'm trying to port v2 to several grantsdale/calistoga boards that we manufactured.