Lpc2000

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 !

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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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 !
> >
> >
> >
> >
> > -----------------------------------------------------------------
-------
> > *Yahoo! Groups Links*
> >
> >     * To visit your group on the web, go to:
> >       http://groups.yahoo.com/group/lpc2000/
> >        
> >     * To unsubscribe from this group, send an email to:
> >       lpc2000-unsubscribe@yahoogroups.com
> >       <mailto:lpc2000-unsubscribe@yahoogroups.com?
subject=Unsubscribe>

> >        
> >     * Your use of Yahoo! Groups is subject to the Yahoo! Terms of
> >       Service <http://docs.yahoo.com/info/terms/>.
> >
> >