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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>To point Rx and Tx for UART</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/38152/to-point-rx-and-tx-for-uart</link><description> 
I use the MCBSTR9. It has two COMs. 
Can I use two UARTs in the same time? 
How can I point Tx and Rx for UARTs? 
The Manual says that GPIO has 3 Alternate Outputs. 

 
Pn.[7:0]OUT[1:0]: GPIO Port Output Control bits
00: Input mode
01: Alternate Output</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: To point Rx and Tx for UART</title><link>https://community.arm.com/thread/53201?ContentTypeID=1</link><pubDate>Thu, 08 Jan 2009 06:10:30 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:f905739c-35b4-4af8-9934-c0c574b28876</guid><dc:creator>Martin G&amp;#195;&amp;#188;nther</dc:creator><description>&lt;p&gt;&lt;p&gt;
Hello Sergiy Safronov,&lt;/p&gt;

&lt;p&gt;
it is possible to use several UARTs at the same time.&lt;br /&gt;
You must configure the correct GPIO ports for the different UARTs.
Please check the STR9 datasheet (&lt;a href="http://www.st.com/mcu/familiesdocs-101.html"&gt;www.st.com/.../familiesdocs-101.html&lt;/a&gt;)
for the different pin functions. Take a look at chapter &lt;b&gt;Default
pin functions&lt;/b&gt; to select the correct GPIO pins.&lt;/p&gt;

&lt;p&gt;
Best Regards,&lt;br /&gt;
Martin Guenther&lt;/p&gt;
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