Re: [ECOS] ADC

Re: [ECOS] ADC

[rob.wj.jansen]

Trenton,

Gary Thomas wrote:

>> On 13-Jul-2001 Trenton D. Adams wrote:
>> Is there a standard api/interface for Analog to Digital Converters in
>> eCos?  I would guess not since programming of an ADC would generally be
>> quite simple.  Correct?
>
> Correct - you are on your own on this one.

Why ? I guess there are others out here that would like a defined API for this.

I would go for a character based interface where it is possible to send/receive data as a byte stream
containing the words from/to the ADC.
Set/get properties of the ADC would contain data like the resolution (in bits), sample period and maybe
also if it is linear/aLaw/uLaw. Just define what you need and leave other fields zero (reserved for future use).

Good luck,

     Rob Jansen

Software Engineer
Competence Center Platforms
BU Mobile Communications
Meijhorst 60-10, 6537 KT Nijmegen, The Netherlands
Tel: +31-24-353-6329
Fax: +31-24-353-3613
mailto:Rob.WJ.Jansen@philips.com

RE: [ECOS] ADC

[Andy Simpkins]

Whilst a defined API would be nice don't forget that the physical device
will need a driver, this would be component and platform specific.  However
if the format of the API can be agreed there is nothing stopping you from
writing your device drivers to use this convention (or Paying Red Hat to do
the work on your behalf cue Jonathan :-) )

Andy

> -----Original Message-----
> From: ecos-discuss-owner@sources.redhat.com
> [ mailto:ecos-discuss-owner@sources.redhat.com]On Behalf Of
> rob.wj.jansen@philips.com
> Sent: 16 July 2001 08:43
> To: tadams@extremeeng.com
> Cc: ecos-discuss@sources.redhat.com
> Subject: Re: [ECOS] ADC
>
>
>
> Trenton,
>
> Gary Thomas wrote:
>
> >> On 13-Jul-2001 Trenton D. Adams wrote:
> >> Is there a standard api/interface for Analog to Digital Converters in
> >> eCos?  I would guess not since programming of an ADC would generally be
> >> quite simple.  Correct?
> >
> > Correct - you are on your own on this one.
>
> Why ? I guess there are others out here that would like a defined
> API for this.
>
> I would go for a character based interface where it is possible
> to send/receive data as a byte stream
> containing the words from/to the ADC.
> Set/get properties of the ADC would contain data like the
> resolution (in bits), sample period and maybe
> also if it is linear/aLaw/uLaw. Just define what you need and
> leave other fields zero (reserved for future use).
>
> Good luck,
>
>      Rob Jansen
>
> Software Engineer
> Competence Center Platforms
> BU Mobile Communications
> Meijhorst 60-10, 6537 KT Nijmegen, The Netherlands
> Tel: +31-24-353-6329
> Fax: +31-24-353-3613
> mailto:Rob.WJ.Jansen@philips.com
>
>

RE: [ECOS] ADC

[Gary Thomas]

On 13-Jul-2001 Trenton D. Adams wrote:
> Is there a standard api/interface for Analog to Digital Converters in
> eCos?  I would guess not since programming of an ADC would generally be
> quite simple.  Correct?

Correct - you are on your own on this one.

[ECOS] ADC

[Trenton D. Adams]

Is there a standard api/interface for Analog to Digital Converters in
eCos?  I would guess not since programming of an ADC would generally be
quite simple.  Correct?