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Lpc2000

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Re: LPC2106 parallel interface ?

2005-05-02 by cactusjac124

Hi Richard,
I can't use the LPC22xx due to other constraints...
However I have only one device to control via this bus. This device 
can be configured to work with different bus settings (Motorola or 
intel mode, Mux or Demuxed) so I have a lot of timing options.
Does anyone have an example of a code that emulates an "external 
memory controller" using the GPIO ? I can't seem to find any info 
about this on the web.

Thanks again for your swift reply,

Jack.


--- In lpc2000@yahoogroups.com, Richard Duits <yahoo@r...> wrote:
> Hi,
> 
> The LPC22xx series would be better for this, because they have an 
> external memory controller. But if you only have one or a few 
devices 
> that do not need to transfer a lot of data, you can emulate the 
> address/data bus in software. In the data sheet of the device you 
want 
> to control you will find the signals and timing. You can write to 
IOxPIN 
> to change all 32 pins at once (the ones mapped as gpio outputs). 
Or you  
> can use IOxSET or IOxCLR to set or clear only a few pins.
> 
> Richard.
> 
> 
> cactusjac124 wrote:
> 
> > Hi Guys,
> > I'm new to MCU and software so go easy on me,
> > I have a project with LPC2106 and I want to use it to control a
> > different component taht only have a parallel interface (8 bit 
data,
> > address, and control signals). can I use the LPC2106 GPIO to 
configure
> > that component (write to control registers and read from status
> > registers)?
> > Do you know if this can be done ?
> > Can I have a sample code ? do you know where can I find such a 
driver ?
> >
> > Thanks !
> >
> >
> >
> >
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