Lpc2000

> 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

Try setting the RBLE (bit 10) high in the BCFGx register.  I was seeing the
exact same behavior and this got it going.  From my understanding of the
description of this bit setting it low should have been correct for an 8-bit
bus???

Anyways, give it a try!

Greg Deuerling
Fermi National Accelerator Laboratory

> -----Original Message-----
> From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] On Behalf
> Of roelof t Hooft
> Sent: Wednesday, October 26, 2005 6:06 AM
> To: lpc2000@yahoogroups.com
> Subject: [lpc2000] lpc2292 we signal problem
> 
> 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
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
>