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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>The questions of current consumption in the datasheet</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/47153/the-questions-of-current-consumption-in-the-datasheet</link><description>Hi Sir, 
 According to the nRF52832_PS_v1.4.pdf, In section 17.1.1, the table shows the current consumption of Radio. What&amp;#39;s difference w/ Iradio_tx0 and Is0? Why do we get higher consumption in Is0? 
 in section 7.2.1, for CPU performance What&amp;#39;s the</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 13 May 2019 11:57:00 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/47153/the-questions-of-current-consumption-in-the-datasheet" /><item><title>RE: The questions of current consumption in the datasheet</title><link>https://devzone.nordicsemi.com/thread/186684?ContentTypeID=1</link><pubDate>Mon, 13 May 2019 11:57:00 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:b1dc731b-e922-4679-bc00-922da30f805f</guid><dc:creator>Amanda Hsieh</dc:creator><description>&lt;p&gt;Hi,&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Sorry for that I am not aware of the permission. There might be the useful information from that case for you:&lt;/p&gt;
&lt;p&gt;&lt;span&gt;In general I would say that pre- and post processing is CPU running code from flash, while radio TX and RX are with CPU idle for most part. If you want to run CPU while radio is in TX or RX, you may add about 2mA on the peak currents as a rough estimate.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;-Amanda&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: The questions of current consumption in the datasheet</title><link>https://devzone.nordicsemi.com/thread/186600?ContentTypeID=1</link><pubDate>Mon, 13 May 2019 09:04:37 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:d5061c0c-1fe4-4945-a41d-8818d89391a2</guid><dc:creator>Hsu</dc:creator><description>&lt;p&gt;HI Amanda,&lt;/p&gt;
&lt;p&gt;Thanks for the update.&lt;/p&gt;
&lt;p&gt;The post for the&amp;nbsp;&lt;span&gt;CPU running CoreMark from Flash is &lt;em&gt;private&lt;/em&gt;. (I got the Access Denied.)&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Could you check this part?&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Thank you&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;BRs, Han&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: The questions of current consumption in the datasheet</title><link>https://devzone.nordicsemi.com/thread/186569?ContentTypeID=1</link><pubDate>Mon, 13 May 2019 07:59:04 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:6423dbde-dc91-4bb9-a08c-d77ce6d76311</guid><dc:creator>Amanda Hsieh</dc:creator><description>&lt;p&gt;Hi,&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
[quote user=""]What&amp;#39;s difference w/ Iradio_tx0 and Is0? Why do we get higher consumption in Is0?[/quote]
&lt;p&gt;&lt;span&gt;Iradio_tx0 is measurement with CPU in &lt;/span&gt;&lt;span&gt;WFI/WFE sleep as the Table 23 described. &lt;/span&gt;&lt;span&gt;Is0&amp;nbsp; is measurement while &lt;/span&gt;&lt;span&gt;CPU running CoreMark from Flash. Please see this &lt;/span&gt;&lt;a href="https://devzone.nordicsemi.com/support-private/support/38540"&gt;&lt;span&gt;post&lt;/span&gt;&lt;/a&gt;&lt;span&gt;.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
[quote user=""]What&amp;#39;s the purpose and difference for &amp;quot;running from flash&amp;quot; (ex: Iddflashcache) and &amp;quot;running from RAM&amp;quot; (ex: Iddram)?[/quote]
&lt;p&gt;It shows the data is taken from flash or RAM.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
[quote user=""]How to set the &amp;quot;running from flash&amp;quot; or &amp;quot;running from RAM&amp;quot;?[/quote]
&lt;p&gt;&lt;a href="https://devzone.nordicsemi.com/question/28726/how-to-execute-code-from-ram-on-nrf51/" rel="noopener noreferrer" target="_blank"&gt;This post&lt;/a&gt;&lt;span&gt;&amp;nbsp;describes how to execute code from RAM using Keil, and the&amp;nbsp;&lt;a href="https://devzone.nordicsemi.com/tutorials/b/getting-started/posts/adjustment-of-ram-and-flash-memory"&gt;the tutorial&lt;/a&gt;&amp;nbsp;shows the adjustment of RAM and Flash memory.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Best regards,&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Amanda&amp;nbsp;&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>