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	<title>Objective Development Forums</title>
	
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	<updated>2007-12-01T13:52:27+02:00</updated>

	<author><name><![CDATA[Objective Development Forums]]></name></author>
	<id>https://forums.obdev.at/app.php/feed/topic/986</id>

		<entry>
		<author><name><![CDATA[christian]]></name></author>
		<updated>2007-12-01T13:52:27+02:00</updated>

		<published>2007-12-01T13:52:27+02:00</published>
		<id>https://forums.obdev.at/viewtopic.php?t=986&amp;p=3335#p3335</id>
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		<title type="html"><![CDATA[Drivers?]]></title>

		
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I don't know how you want to control the communication direction of your RS485 interface. If the device should look like a serial interface, I'd recommend that you implement a CDC class device. See <!-- m --><a class="postlink" href="http://www.recursion.jp/avrcdc/">http://www.recursion.jp/avrcdc/</a><!-- m --> for an example. This class of device does not need a Windows driver, only a .inf file which tells it to use the drivers which ship with Windows.<br /><br />If you need more control (e.g. over the communication direction), you need to write your own windows driver. I would recommend a HID class device in this case. Using HID for data communication is demonstrated in Automator and (more sophisticated) in AVR-Doper. Both projects are available at <!-- m --><a class="postlink" href="http://www.obdev.at/avrusb/">http://www.obdev.at/avrusb/</a><!-- m -->.<p>Statistics: Posted by <a href="https://forums.obdev.at/memberlist.php?mode=viewprofile&amp;u=8">christian</a> — Sat Dec 01, 2007 1:52 pm</p><hr />
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		<entry>
		<author><name><![CDATA[Anonymous]]></name></author>
		<updated>2007-11-28T14:42:18+02:00</updated>

		<published>2007-11-28T14:42:18+02:00</published>
		<id>https://forums.obdev.at/viewtopic.php?t=986&amp;p=3302#p3302</id>
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		<title type="html"><![CDATA[Drivers?]]></title>

		
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Hi,<br /><br />I'm, currently doing some investigations for a small project of mine... It would be a sort of USB-RS485 interface. And this AVR-USB seems like a perfect fit...<br /><br />However I have some questions...<br /><br />1. Are there any drivers that makes it really simple to communicate with it? or do I need to write my own drivers?<br /><br />2. If such drivers exist, do they work with Windows Vista?<p>Statistics: Posted by Guest — Wed Nov 28, 2007 2:42 pm</p><hr />
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