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Lpc2000

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Re: ETM on the LPC2114

2004-04-24 by lpc2100_fan

Pontus,

on the LPC2114 and all 64-pin LPC2000 devices that I know, you can
pick either JTAG or ETM+JTAG so you got it right. On the LPC210x
(48-pin devices) this is a little more tricky. Enabling  debug does
enable JTAG + ETM, that's why there were many questions about the
secondary JTAG on the LPC210x. There is no such thing as a secondary
JTAG (documented?) on the LPC2114.

Cheers, Bob

--- In lpc2000@yahoogroups.com, pontus.oldberg@i... wrote:
> I just read through the users manual for the LPC2114 and from what i 
> can deduce the ETM output can be individually disabled simply by not 
> tying a pull up resisitor to P1.20/TRACESYNC. I.e. you should be able 
> to use the ETM port pins as normal IO pins while debugging through 
> the JTAG interface. Did i understand this correctly or have i jumped 
> to conclusions ?
> 
> /Pontus

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