Lpc2000

Robert,

your statement about micros with JTAG not having an ICE is definitely
true. What JTAG is lagging is trace. ARM provides a debug interface
called ETM, Embedded Trace Macrocell(tm). Surpisingly this trace
interface did not make it onto many devices yet, usually only the high
priced versions, except the LPC2000 devices. They have the ETM
interface built in. So, if you need more than just 2 HW-breakpoints
offered if debugging from Flash, the ETM offers trace and tells you
HOW you got to the location you were never suppossed to end up at.

Cheers, Bob


> 
> JTAG is somewhere between printf type debugging and a fully functional 
> ICE.  It doesn't have the power of a full ICE but (especially if you
add 
> embedded trace) it comes close at a fraction of the cost.  I don't
think 
> I've seen a micro with JTAG available also have an ICE.
> 
> 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