Lpc2000

--- In lpc2000@yahoogroups.com, "philips_apps" <philips_apps@y...> wrote:
>
> The Philips ARM7 implementation can not be debugged through Reset for 
> a very simple reason, it is called code security.
> 
> 

Good enough reason!  :-)

If it is not too much trouble, I am curious why the code security
decision was not done using clock cycles between the release of the
external reset, and the release of the ARM core reset? That would just
look like XXX number of clock cycles between the release of external
reset and the very first memory fetch?  That would not cripple honest
debugging of non-secured code, and would still allow code security
wouldn't it?

Anyway, as you say, the inability to debug out of reset is something
that many people would never even notice, so it is probably no big deal.  

Thanks for the info!!!

--Dave


> 
> ARM7TDMI, the core itself could be debugged from reset, correct but we 
> prefer a higher security over minor restriction for debugging. 
> 
> Robert
>