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<?xml-stylesheet type="text/xsl" href="https://community.arm.com/utility/feedstylesheets/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>I Can&amp;#39;t Spell Quartus</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/29550/i-can-t-spell-quartus</link><description> 
Hi friends, 

 
How to measure isolated mains voltage without using isolated
transformer? 

 
can we put an opto isolator on port pin? 

 
you 

 
regard 
 </description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: I Can't Spell Quartus</title><link>https://community.arm.com/thread/119457?ContentTypeID=1</link><pubDate>Sun, 11 Sep 2011 05:34:34 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:c1750fcf-8016-4972-aedb-16bdf7ba6434</guid><dc:creator>Andy Neil</dc:creator><description>&lt;p&gt;&lt;p&gt;
Does it?&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: I Can't Spell Quartus</title><link>https://community.arm.com/thread/105270?ContentTypeID=1</link><pubDate>Sat, 10 Sep 2011 13:21:38 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:bc31d291-bf1b-4c66-a663-881e1c155c32</guid><dc:creator>zhi feng</dc:creator><description>&lt;p&gt;&lt;p&gt;
ni hao friends.&lt;/p&gt;

&lt;p&gt;
that why asking for opto isolator. no mains for me ^-^&lt;/p&gt;

&lt;p&gt;
Quartus method splits problem for easy solution.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: I Can't Spell Quartus</title><link>https://community.arm.com/thread/91214?ContentTypeID=1</link><pubDate>Sat, 10 Sep 2011 12:52:39 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:635035fd-f34e-439b-a75e-efbdb1934e86</guid><dc:creator>ImPer Westermark</dc:creator><description>&lt;p&gt;&lt;p&gt;
The big question here: Should someone who don&amp;#39;t have the
electrical knowledge about different methods to measure mains voltage
really measure mains voltages?&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: I Can't Spell Quartus</title><link>https://community.arm.com/thread/59822?ContentTypeID=1</link><pubDate>Sat, 10 Sep 2011 12:43:27 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:534005d9-63a0-40fb-a234-d7361a0ea5a4</guid><dc:creator>&amp;#178;erik malund</dc:creator><description>&lt;p&gt;&lt;p&gt;
whatever &amp;quot;I Can&amp;#39;t Spell Quartus&amp;quot; has to do with&lt;/p&gt;

&lt;p&gt;
&lt;i&gt;can we put an opto isolator on port pin?&lt;/i&gt;&lt;br /&gt;
the answer is yes, read datasheets till you find one that match the
isolation and gain you need&lt;/p&gt;

&lt;p&gt;
Erik&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>