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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.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/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>nRF52840 features and capability</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/44461/nrf52840-features-and-capability</link><description>Hello, We planned use nRF52840 in our project, and I have some questions about this MCU. 1) Is it possible to process signal from 8-GPIO with frequency of request 32MHz? We plan use 8-bit parallel ADC with sample rate 32MHz and length of packet 1 kB.</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 11 Mar 2019 08:53:49 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/44461/nrf52840-features-and-capability" /><item><title>RE: nRF52840 features and capability</title><link>https://devzone.nordicsemi.com/thread/175262?ContentTypeID=1</link><pubDate>Mon, 11 Mar 2019 08:53:49 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:015449d3-898c-4d54-9c66-3fcd90b81318</guid><dc:creator>Egor Karlin</dc:creator><description>&lt;p&gt;&lt;span&gt;Thanks!&amp;nbsp;&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF52840 features and capability</title><link>https://devzone.nordicsemi.com/thread/174828?ContentTypeID=1</link><pubDate>Thu, 07 Mar 2019 14:05:54 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:fe30d827-596d-4c83-92bf-fb3bcbfe8a63</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;Unfortunately, the GPIO peripheral itself runs on a 16 MHz clock, which means that it can&amp;#39;t sample a 32 MHz signal.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF52840 features and capability</title><link>https://devzone.nordicsemi.com/thread/174698?ContentTypeID=1</link><pubDate>Thu, 07 Mar 2019 05:04:55 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:8b95e45c-d4b6-4739-b428-797fbe74bbfe</guid><dc:creator>Egor Karlin</dc:creator><description>&lt;p&gt;1) Oh no, we don&amp;#39;t plan to use embedded ADC. We have external 8-bit parallel ADC.&amp;nbsp; MCU processing possibility of 8-bit digital signal from 8 GPIO with freq 32 MHz is important for us. Is it possible?&amp;nbsp; Quantity of semples, which must be remembered and processed, is 1024.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;2) Thanks. It&amp;#39;s very very good.&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Thanks in advanced&amp;nbsp;&lt;/span&gt;&lt;br /&gt;&lt;span&gt;Karlin Egor&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF52840 features and capability</title><link>https://devzone.nordicsemi.com/thread/174603?ContentTypeID=1</link><pubDate>Wed, 06 Mar 2019 14:21:58 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c92a0a6e-0431-4c47-9f1e-9d2f43ddd9e7</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;1) No, this is not supported. &lt;a href="https://www.nordicsemi.com/DocLib/Content/Product_Spec/nRF52840/latest/saadc?889#unique_949791996"&gt;Maxmimum sampling rate of the ADC is 200 kHz.&amp;nbsp;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;2) Zephyr or freeRTOS. We have examples for &lt;a href="https://www.nordicsemi.com/DocLib/Content/SDK_Doc/nRF5_SDK/v15-3-0/ble_sdk_app_hrs_freertos"&gt;FreeRTOS in the SDK.&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Best regards&lt;/p&gt;
&lt;p&gt;Jared&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>