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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>Hi</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/29858/hi</link><description> 
I want to interface RF transmitter and receiver with 80v51 uc.
which is the best suited trasmitter and receiver ic for 89v51 uc ?
and is der any way to trasnmit data by encryptying it ? 
i need help . . thank u . 
 </description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: Hi</title><link>https://community.arm.com/thread/127946?ContentTypeID=1</link><pubDate>Sun, 23 Dec 2012 07:42:11 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:e406f88e-5da2-4af3-be9c-ab0416f27db2</guid><dc:creator>R C</dc:creator><description>&lt;p&gt;&lt;p&gt;
thank you for helping me&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Hi</title><link>https://community.arm.com/thread/119920?ContentTypeID=1</link><pubDate>Sun, 23 Dec 2012 07:02:37 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:5e4d6882-719b-4d47-934a-d86755838f86</guid><dc:creator>doubt that my ISP Al Bradford</dc:creator><description>&lt;p&gt;&lt;p&gt;
Sorry. I&amp;#39;m know nothing of these modules. Go to the module data
sheets to determine the interface signals. Go to the 80V51 data
sheets to see if the device supports the type of interface the
modules require.&lt;/p&gt;

&lt;p&gt;
I don&amp;#39;t know what country you are located but I suggest that you
become well aware of the laws of RF in your country. Frequency bands
allowed in one country may be forbidden in another country.&lt;/p&gt;

&lt;p&gt;
Most of the newer RF transceiver will support what is called Hi
Band or Lo Band. For example the TI CC1100 transceiver will tune via
internal registers from 380MHz to 960MHz. Your band restriction then
would be the antenna design.&lt;/p&gt;

&lt;p&gt;
As I read over your email I now realize that you might be looking
for a complete RF module already wired and ready to go. Look at Xbee
modules for a completed RF module design. Also you can download
schematics of their modules to see if they fit your application.&lt;/p&gt;

&lt;p&gt;
Again, I suggest that you vist the website of the device vendors
such as Silabs or TI even though you may not use their devices. They
have a lot of information and tutorials on these web sites.&lt;/p&gt;

&lt;p&gt;
Bradford&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Hi</title><link>https://community.arm.com/thread/106715?ContentTypeID=1</link><pubDate>Sun, 23 Dec 2012 00:16:24 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:154aaaf5-953c-44b8-9316-d7aa819d3998</guid><dc:creator>R C</dc:creator><description>&lt;p&gt;&lt;p&gt;
i want to use 450 MHz or 900 MHz frequency.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Hi</title><link>https://community.arm.com/thread/80842?ContentTypeID=1</link><pubDate>Sun, 23 Dec 2012 00:11:10 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:bb02de5c-5d63-4283-808a-6473924bded3</guid><dc:creator>R C</dc:creator><description>&lt;p&gt;&lt;p&gt;
thanks for the help . .&lt;/p&gt;

&lt;p&gt;
i&amp;#39;m new to this field . i just made a 89v51 programmer kit which
can be programed using hyper terminal using com port&lt;/p&gt;

&lt;p&gt;
i want to make RF Tx and Rx which can be interfaced with 89v51&lt;/p&gt;

&lt;p&gt;
i have heard of HT12E and HT12D RF decoder encoder module. can u
please help with this module ?&lt;/p&gt;

&lt;p&gt;
thank u&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Hi</title><link>https://community.arm.com/thread/61492?ContentTypeID=1</link><pubDate>Sat, 22 Dec 2012 14:33:50 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:a12fe17d-d954-4ad6-adcf-bb629ce9dbd1</guid><dc:creator>doubt that my ISP Al Bradford</dc:creator><description>&lt;p&gt;&lt;p&gt;
RC;&lt;/p&gt;

&lt;p&gt;
First ignore the stupid jerks on this forum. I truly wish that
Keil had a moderator on this forum.&lt;/p&gt;

&lt;p&gt;
After my rant I suggest that you look at the CC253x series of
devices from Texas Instruments.&lt;br /&gt;
They have the improved versions of the 8051 in the chips. They also
have RF transceivers that interface to any MCU supporting SPI. Most
of the IC vendor have similar devices.&lt;/p&gt;

&lt;p&gt;
You did not mentioned what frequencies that you need to support.
Most of the IC devices that support the 2.5GHz band will have
built-in encryptyion abilities. Some of the sub-gigahertz also have
encryption.&lt;/p&gt;

&lt;p&gt;
Please ignore spelling errors. I have one eye bandaged and can&amp;#39;t
see very well out of the other eye.&lt;/p&gt;

&lt;p&gt;
&lt;a href="http://www.lvr.com"&gt;http://www.lvr.com&lt;/a&gt; for some info and
tutorials.&lt;/p&gt;

&lt;p&gt;
&lt;a href="http://www.ti.com"&gt;http://www.ti.com&lt;/a&gt;&lt;br /&gt;
&lt;a href="http://www.silabs.com"&gt;http://www.silabs.com&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;
rgds,&lt;/p&gt;

&lt;p&gt;
Bradford&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Hi</title><link>https://community.arm.com/thread/80841?ContentTypeID=1</link><pubDate>Sat, 22 Dec 2012 13:42:28 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:5f8c5fea-1628-4b3b-8dfa-107eeb318b24</guid><dc:creator>Gaseous Trousers</dc:creator><description>&lt;p&gt;&lt;p&gt;
&lt;i&gt;is der any way to trasnmit data by encryptying it ?&lt;/i&gt;&lt;/p&gt;

&lt;p&gt;
Let&amp;#39;s see now. You probably think you are being clever by trying
to encode your question, but you have failed miserably. You are an
idiot. Rest assured that whatever you think you know, I know far more
and will always be able to exhibit the superiority even when it is
clearly not justifiable or even remotely true. I will not waste any
more time on you. Goodbye.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Hi</title><link>https://community.arm.com/thread/61495?ContentTypeID=1</link><pubDate>Sat, 22 Dec 2012 09:33:23 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:ace09330-95d9-4d2d-9f68-6a10098f03ff</guid><dc:creator>&amp;#178;erik malund</dc:creator><description>&lt;p&gt;&lt;p&gt;
first, this must be the most descriptive subject yet&lt;/p&gt;

&lt;p&gt;
&lt;i&gt;which is the best suited trasmitter and receiver ic for 89v51
uc ?&lt;/i&gt;&lt;br /&gt;
the one that fit your app (distance, power, ...)&lt;/p&gt;

&lt;p&gt;
&lt;i&gt;is der any way to trasnmit data by encryptying it ?&lt;/i&gt;&lt;br /&gt;
no, but you can encrypt the data before tansmitting it&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>