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Lpc2000

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Message

lpc2292 we signal problem

2005-10-26 by roelof t Hooft

Hi,

I would really appreciate somebody's help with the
following :

A lpc2292 with 2 m29w320 Flash memory connected to
it. The signals :
lpc    Fl
cs0    -> ce
oe     -> oe
we     -> we
A2-22  -> A0-20
D0-15  -> D0-15 first device
D16-31 -> D0-15 second device

idcy, wst1 and wst2 of bcfg0 are set to the max.
mw is set for 32 bits memory. Everything else is
zero.

Now I have hooked up a logic analyzer and that shows
me that the we signal is not used to write to Flash.
But instead the bls signals are active.

It would be easy to connect bls0 to the we inputs
but I would like to understand why this happens.
Does the processor "see" an one in rble no matter
what I put in it ?  (philips support ?????)

roelof

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