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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>About nRF52832,enter idle mode .How long does the 52832 enter  idle mode ,via calling WFI instruction.</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/44868/about-nrf52832-enter-idle-mode-how-long-does-the-52832-enter-idle-mode-via-calling-wfi-instruction</link><description>HI Nordic Team : 
 Our important customer uses nRF52832 to develop bluetooth key product . they want to know how long the 52832 enter IDLE mode by calling WFI instruction . please confrim official this value .They measure this value about 300us. 
 Thanks</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 18 Mar 2019 08:14:34 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/44868/about-nrf52832-enter-idle-mode-how-long-does-the-52832-enter-idle-mode-via-calling-wfi-instruction" /><item><title>RE: About nRF52832,enter idle mode .How long does the 52832 enter  idle mode ,via calling WFI instruction.</title><link>https://devzone.nordicsemi.com/thread/176614?ContentTypeID=1</link><pubDate>Mon, 18 Mar 2019 08:14:34 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:90c47d8a-a035-4080-a43d-8b971e212646</guid><dc:creator>run_ar</dc:creator><description>&lt;p&gt;&lt;a href="http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0552a/BABFEFIG.html"&gt;From ARM documentation:&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;em&gt;&lt;code&gt;WFI&lt;/code&gt; is a hint instruction that suspends execution until one of the following events occurs:&lt;/em&gt;&lt;/p&gt;
&lt;div&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;p&gt;&lt;em&gt;a non-masked interrupt occurs and is taken&lt;/em&gt;&lt;/p&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;p&gt;&lt;em&gt;an interrupt masked by PRIMASK becomes pending&lt;/em&gt;&lt;/p&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;p&gt;&lt;em&gt;a Debug Entry request.&lt;/em&gt;&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;Execution will be suspended when the instruction is run. Instead of using wfi I would recommend that you use the normal sev, wfe, wfe routine. More details in this thread: &lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/490/how-do-you-put-the-nrf51822-chip-to-sleep#reply-1589"&gt;devzone.nordicsemi.com/.../how-do-you-put-the-nrf51822-chip-to-sleep&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: About nRF52832,enter idle mode .How long does the 52832 enter  idle mode ,via calling WFI instruction.</title><link>https://devzone.nordicsemi.com/thread/176543?ContentTypeID=1</link><pubDate>Sat, 16 Mar 2019 07:18:11 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:a7773c1d-8211-4bfd-b660-911c02555583</guid><dc:creator>helen</dc:creator><description>&lt;p&gt;Hi&amp;nbsp; Run,&lt;br /&gt;&amp;nbsp; &amp;nbsp;I means how long time cpu from calling WFI instruction to enter idle mode .&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: About nRF52832,enter idle mode .How long does the 52832 enter  idle mode ,via calling WFI instruction.</title><link>https://devzone.nordicsemi.com/thread/176382?ContentTypeID=1</link><pubDate>Fri, 15 Mar 2019 12:11:21 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:06cf4336-ffab-4f40-b920-ba76693c156a</guid><dc:creator>run_ar</dc:creator><description>&lt;p&gt;HI,&lt;/p&gt;
&lt;p&gt;I am afraid I do not understand what you are asking for. Can you please elaborate?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>