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Lpc2000

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

Message

Re: lpc2294 external bus query

2004-10-13 by itsjustimpossible

Thats great!
I had setup the EMC config, but had bypassed the PINSEL2 register 
when compiling for internal FLASH!

I have added another section to the start-up file to configure 
PINSEL2 and magically everything works as expected.

many thanks
Simon

--- In lpc2000@yahoogroups.com, "douglasbolton" <doug@c...> wrote:
> 
> --- In lpc2000@yahoogroups.com, "itsjustimpossible" <simonjh@b...> 
> wrote:
> > 
> > Hi
> > Does anyone know if it is possible to run with internal FLASH and 
> > RAM, but also have an additional SRAM and 8-bit peripheral on the 
> > external bus?
> > 
> > From the data sheet it looks like it should be, but if I run from 
> > internal FLASH I don't get any bus activity if I try to access 
the 
> > external memory.
> > 
> > many thanks
> > Simon
> 
> You sure can. I'm currently running an external 8 bit lcd and 2*16 
> bit sram chips. I also use both the internal flash and sram.
> 
> I'm using CS1,CS2 and CS3 for the external devices. Below is my 
setip 
> code and it seems just to work!

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