Lpc2000

--- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@a...> wrote:
> At 03:23 PM 3/6/05 +0000, david_z_lawson wrote:
> >I'm new to ARM / embedded / Philips. I've got some code that I've been
> >stepping through and one instruction is causing a data abort, I think,
> >since execution goes to 0x00000010 (the data abort vector). But core
> >interrupts are disabled. I guess that a data abort is not really an
> >interrupt. But what could cause this to happen?
> >
> >on the MCB2130 / LPC2138:
> >
> >r0 =    0x00000000
> >r1 =    0x4000f6f4
> >cpsr =  0x800000df
> >pc =    0x400000b4
> >
> >strcc   r0, [r1], #4    <<<< causes 'data abort', goes to 0x00000010
> 
> Doesn't the 2138 only have 32K RAM?  R1 is well above that point. 
You are 
> trying to access an area to no memory.
> 
> Robert
> 
> " 'Freedom' has no meaning of itself.  There are always restrictions,
> be they legal, genetic, or physical.  If you don't believe me, try to
> chew a radio signal. "
> 
>                          Kelvin Throop, III


You're right. I just tried defining 32k memory size in my linker file
and it works fine now. I thought that I read somewhere that this
processor had 64k of ram. I just looked it up and is says 32k.

David