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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>dual serial communcation</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/29202/dual-serial-communcation</link><description> 
hi, 

 
in my project i have to use 2 uart in 8051 micrcontroller. i am
using gsm and gps in my project.my problem is when i receiving gsm
sms i have to send gps value to same number . the mobile number is
not stored in software.we can receive sms form</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: dual serial communcation</title><link>https://community.arm.com/thread/67529?ContentTypeID=1</link><pubDate>Sat, 16 Jun 2012 13:31:09 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:18ddbc3c-b8eb-4d72-8c90-dfffb6d2f30b</guid><dc:creator>Andy Neil</dc:creator><description>&lt;p&gt;&lt;p&gt;
As Per said, it&amp;#39;s not clear what particular problem(s) you&amp;#39;re
asking about!&lt;/p&gt;

&lt;p&gt;
Note that this is a very common project - you should be able to
find plenty of examples with a little googling...&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: dual serial communcation</title><link>https://community.arm.com/thread/60823?ContentTypeID=1</link><pubDate>Sat, 16 Jun 2012 06:44:25 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:27b391c1-e79a-4cf4-b592-064fbca66a05</guid><dc:creator>&amp;#178;erik malund</dc:creator><description>&lt;p&gt;&lt;p&gt;
I GUESS (why not be clear in your post so guessing is not needed)
that you need 2 UARTS one for the GSM and one for the GPS.&lt;br /&gt;
hang all ideas about a &amp;#39;soft&amp;#39; UART up, they are a pain in your
largest muscle and, usually, give you timing problems. There are
legio derivatives with two UARTs, use one of those.&lt;/p&gt;

&lt;p&gt;
Erik&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: dual serial communcation</title><link>https://community.arm.com/thread/91584?ContentTypeID=1</link><pubDate>Sat, 16 Jun 2012 05:55:43 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:8d8c28b0-da5f-4dd9-bf11-bd9b218933cc</guid><dc:creator>ImPer Westermark</dc:creator><description>&lt;p&gt;&lt;p&gt;
By the way - thread subject is &amp;quot;dual serial communication&amp;quot;, but
you don&amp;#39;t seem to ask any question relating to dual serial ports. So
why not a thread title related to your actual problem?&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: dual serial communcation</title><link>https://community.arm.com/thread/67530?ContentTypeID=1</link><pubDate>Sat, 16 Jun 2012 05:54:52 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:733f7417-e63f-4b3e-bc8c-8d6e334f924a</guid><dc:creator>ImPer Westermark</dc:creator><description>&lt;p&gt;&lt;p&gt;
Handle what problem?&lt;/p&gt;

&lt;p&gt;
That you get an SMS from an unknown source and don&amp;#39;t want to waste
money sending back an answer?&lt;/p&gt;

&lt;p&gt;
Just require the SMS to contain a known content: &amp;quot;Send GPS&amp;quot;. A
random SMS will not contain that text, so will not trig any
response.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>