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Re: Memory-mapped A/D converter



Chip selects (CSP0 and CSP4) are available as testpoints and
the databus is available on the Logic analyser connector (not mounted)
/Johan

----- Original Message -----
From: "Rafael Collantes" <racb@xxxxxxx.com>
To: "Mikael Starvik" <starvik@xxxxxxx.com>
Sent: den 26 april 2002 09:53
Subject: RE: Memory-mapped A/D converter


> Mikael,
>
>    Thanks for the info. But the question was more related to the
> DEVELOPMENT BOARD. The databus and chip select signals are not accesible!
>
>    Best regards,
>
>
>      Rafael Collantes
>
> At 07:48 26/04/02 +0200, Mikael Starvik wrote:
> >I haven't looked at this particular chip but the ETRAX 100 provides
> >a large number of chip selects and two external DMA channels.
> >
> >Have you read this document?
> >
>
>http://developer.axis.com/doc/hardware/etrax100lx/des_ref/ET100LX_05_Bus_In
terface_010823.pdf
> >
> >/Mikael
> >
> >-----Original Message-----
> >From: owner-dev-etrax@xxxxxxx.com]On">mailto:owner-dev-etrax@xxxxxxx.com]On
> >Behalf Of Rafael Collantes
> >Sent: Thursday, April 25, 2002 4:40 PM
> >To: dev-etrax
> >Subject: Memory-mapped A/D converter
> >
> >
> >Hi all,
> >
> >    We are trying to use a MAX125 A/D converter in the Axis Development
> >Board. Has anyone had any experience in adding memory-mapped devices to
the
> >board?
> >How should we generate the chip select signals... is it possible to do it
> >from the ETRAX chip or should we use external logic?
> >
> >    Thanks a lot.
> >
> >    Rafael Collantes
>