<?xml-stylesheet type="text/xsl" href="https://community.element14.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Use the ZYNQ XADC with DMA part 2: get and show samples in PYNQ</title><link>/technologies/fpga-group/b/blog/posts/use-the-zynq-xadc-with-dma-part-2-get-and-show-samples-in-pynq</link><description>In this series of 2 blogs, I&amp;#39;m trying to sample the ADC at high speed and move the samples to memory fast.The goal is to achieve the highest speed - 1 MSPS ( Megasamples per second = millions of samples per second ).In the previous article ,&amp;amp;n...</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: Use the ZYNQ XADC with DMA part 2: get and show samples in PYNQ</title><link>https://community.element14.com/technologies/fpga-group/b/blog/posts/use-the-zynq-xadc-with-dma-part-2-get-and-show-samples-in-pynq</link><pubDate>Thu, 11 May 2023 09:59:16 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:2932836c-912c-47ee-9e2c-e2f65fd063b0</guid><dc:creator>yepe</dc:creator><slash:comments>2</slash:comments><description>&lt;p&gt;One question you may have thought about. My goal is to capture a signal up to 10 kHz and programmatically determine the frequency using an FFT (and/or create a spectrogram). I would need to know a timestamp or delta_t. Is it correctly understood if you have a static sample rate on the ADC? That way you know the time between each sample.&lt;/p&gt;
&lt;p&gt;Also I noticed you used the V_N and V_P differential ADC input. What if you had to use two inputs? Are you able to pipe the input to, say, A0 and A1, or are they limited in some way?&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=22389&amp;AppID=19&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item><item><title>RE: Use the ZYNQ XADC with DMA part 2: get and show samples in PYNQ</title><link>https://community.element14.com/technologies/fpga-group/b/blog/posts/use-the-zynq-xadc-with-dma-part-2-get-and-show-samples-in-pynq</link><pubDate>Thu, 11 May 2023 09:44:08 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:2932836c-912c-47ee-9e2c-e2f65fd063b0</guid><dc:creator>yepe</dc:creator><slash:comments>0</slash:comments><description>&lt;p&gt;Great blog post Jan! I am studying this to develop my next sub-module for the same project as the ultrasound pulser. The Arduino XADC I have been testing is too slow with only 1 kS/s [emoticon:4191f5ee34e248a29fa0dbe8d975f74a]&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=22389&amp;AppID=19&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item><item><title>RE: Use the ZYNQ XADC with DMA part 2: get and show samples in PYNQ</title><link>https://community.element14.com/technologies/fpga-group/b/blog/posts/use-the-zynq-xadc-with-dma-part-2-get-and-show-samples-in-pynq</link><pubDate>Tue, 30 Nov 2021 22:00:48 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:2932836c-912c-47ee-9e2c-e2f65fd063b0</guid><dc:creator>genebren</dc:creator><slash:comments>0</slash:comments><description>&lt;p&gt;Very cool!&amp;nbsp; This was a great sampling experiment.&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=22389&amp;AppID=19&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item></channel></rss>