From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934472AbeEIJK0 (ORCPT ); Wed, 9 May 2018 05:10:26 -0400 Received: from www381.your-server.de ([78.46.137.84]:55578 "EHLO www381.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934195AbeEIJKX (ORCPT ); Wed, 9 May 2018 05:10:23 -0400 Subject: Re: Using LIBIIO sending DATA to DAC and capturing the output from DAC To: Randy Dunlap , jarul , linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org References: <1525828377261-0.post@n7.nabble.com> From: Lars-Peter Clausen Message-ID: <804ea1be-1f2b-d95c-ee59-0552ed1f17d1@metafoo.de> Date: Wed, 9 May 2018 11:10:20 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Authenticated-Sender: lars@metafoo.de Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Same question was also posted on the ADI support forums, we'll discuss it there since this is a ADI product specific question. See https://ez.analog.com/thread/106116 On 05/09/2018 03:14 AM, Randy Dunlap wrote: > [adding linux-iio mailing list] > > On 05/08/2018 06:12 PM, jarul wrote: >> 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/ > >