Yahoo Groups archive

Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

Re: lpc2292 we signal problem

2005-10-26 by roelof t Hooft

--- In lpc2000@yahoogroups.com, Greg Deuerling <egads@f...> wrote:
> Try setting the RBLE (bit 10) high in the BCFGx register. I was
> seeing the exact same behavior and this got it going.

I did and it generates the we signal when an access
is made to external Flash memory.
The text in the manual should be different :
RBLE set = WE signal enabled
RBLE cleared = WE signal disabled

The bls signals are active no matter the rble setting.
This might have something to do with the MW bits.


> From my understanding of the
> description of this bit setting it low should have been correct
> for an 8-bit bus ???

Or byte wide devices on a word or double word data bus.
I think the text is confusing.


> Anyways, give it a try!

I did :-)

Now I have to fix the actual writing to memory : the we signal
is present but nothing (apparantly) is written into the Flash.

Thank you.

roelof

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.