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blackfin and AD7476

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I want to use the AS7476A as a A/D convertor on a blackfin processor.

To try it out, I want to use a analog devices evaluation board for this AD7476 to be able to connect it toe the BF537 evaluation board that is supported by labview.

But what evaluation board do I need to use and what are the connection supported?

ir. Vincent Spruytte

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Accepted by topic author vspruytte

"devices, such as the AD7266 and the AD7476, are separate circuit boards that plug onto the EZ-KIT through the SPI or SPORT interface".  Taken from:

http://zone.ni.com/reference/en-XX/help/371653B-01/lvblackfinhelp/bf_devicedriver/

 

The drivers that are available are also documented here:

http://zone.ni.com/reference/en-XX/help/371653C-01/lvblackfinhelp/bf_driver_docs/

 

Let me know if you have any other questions,

David_B
Applications Engineer
National Instruments
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the problem is that I do not know what card of analog devices I need to use.

I have a EVAL-AD7476A/77A_CBZ card received from analog devices on their advice. But ... it has no SPI connector as said by the guy of analog devices. It connects through  the Converter Evaluation and Development Platform. This seems a very practical solution, but connects to the BF537 board through the U-connector on the back. Although this seems very integrated an practival, the guy of analog devices said that I this is not supperted by labview. 

 Then I find on the analog devices web site a AD7476A Stamp SPI Daughter Card. This card works of course thourgh the SPI connector, but I it maid for another type of BF537 card, a newer type, of which I do not know if it is supported by NI and I do not have it.

At last, on http://www.analog.com/en/analog-to-digital-converters/ad-converters/ad7476a/products/evaluation-boardstools/resources.html?display=popup I find 2 setups for high precision cards. Can I use those if I want to?

 

ir. Vincent Spruytte

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The SPI bus API has been implemented within LabVIEW, so if your daughter card accesses the Blackfin processor through the SPI bus, then you should be able to access your daughter card through LabVIEW.

David_B
Applications Engineer
National Instruments
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