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From: jarul <joearul09@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Using LIBIIO sending DATA to DAC and capturing the output from DAC
Date: Tue, 8 May 2018 18:12:57 -0700 (MST)	[thread overview]
Message-ID: <1525828377261-0.post@n7.nabble.com> (raw)

I would like to ask a question and if anybody can answer my question, I would
very much appreciate.

I am using Z706 and AD9361. I have setup the SD card image on the server
side and I have a client machine which is a Linux machine. I am using
ad9361-iiostream file where I send my data using sin and cos function to DAC
and try to get the output from DAC. If I send the random number which does
not exceed 2047, do the left shift 4 bit and send the data to DAC. It
creates a nice waveform file and the waveform can be seen on oscilloscope
clearly.  Using random number I can get the output from DAC. However, when I
send the sin and cos function, the output from DAC can not be captured or I
get just 0 and one single value as output.

I have used iio_channel_read_raw function to capture the output else
iio_channel_read function to capture the output from DAC. I want to capture
the DAC output and then send the output to ADC and finally I want to capture
the ADC output to compare the digital data on both side.

Can any export or whoever is familiar with the subject libiio can answer my
question. Thanks a lot.



--
Sent from: http://linux-kernel.2935.n7.nabble.com/

             reply	other threads:[~2018-05-09  1:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-09  1:12 jarul [this message]
2018-05-09  1:14 ` Using LIBIIO sending DATA to DAC and capturing the output from DAC Randy Dunlap
2018-05-09  9:10   ` Lars-Peter Clausen

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