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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>Speed of reading from flash address with nRF52840</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/23382/speed-of-reading-from-flash-address-with-nrf52840</link><description>Hi everyone, 
 I was wondering if anyone benchmarked the time for reading a word from flash on the nRF52840. I was able to find the write/erase time on the specs document but was not able to find anything about the reading speed (I apologize in advanced</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 02 Oct 2017 23:22:09 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/23382/speed-of-reading-from-flash-address-with-nrf52840" /><item><title>RE: Speed of reading from flash address with nRF52840</title><link>https://devzone.nordicsemi.com/thread/91914?ContentTypeID=1</link><pubDate>Mon, 02 Oct 2017 23:22:09 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:d6f48a55-c6f0-4123-9d1e-53d7bf36105b</guid><dc:creator>superpak</dc:creator><description>&lt;p&gt;Were you able to get any read times? If so, can you please share? Thanks!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Speed of reading from flash address with nRF52840</title><link>https://devzone.nordicsemi.com/thread/91915?ContentTypeID=1</link><pubDate>Mon, 10 Jul 2017 16:46:43 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c66b36b2-0211-4211-9e2d-fbc5c9ca575e</guid><dc:creator>Hung Bui</dc:creator><description>&lt;p&gt;Hi Jay,&lt;/p&gt;
&lt;p&gt;I don&amp;#39;t have a value, but reading from flash, directly using the address, should be very short, could be a few instruction (few clock cycles needed), just to clock the data from flash to CPU&amp;#39;s register and then to RAM via AHB bus. I don&amp;#39;t think the NVMC module involved here. Only when you do write or erase then the NVMC module needed. Other than that it&amp;#39;s just direct access from CPU to AHB.&lt;/p&gt;
&lt;p&gt;I would suggest to toggle a pin when you do a read from flash (access the flash word directly with its address) and toggle it again after you finish, and use a logic analyzer to check the pulse.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>