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	<title>EmbLogic &#187; Sachin Sharma</title>
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		<title>Sending data using Circular buffer through IEEE EIA/TIA – 232E specification and associated serial port device driver(Implementing RS 232 Protocol)</title>
		<link>https://www.emblogic.com/blog/11/sending-data-using-circular-buffer-through-ieee-eiatia-232e-specification-and-associated-serial-port-device-driverimplementing-rs-232-protocol/</link>
		<comments>https://www.emblogic.com/blog/11/sending-data-using-circular-buffer-through-ieee-eiatia-232e-specification-and-associated-serial-port-device-driverimplementing-rs-232-protocol/#comments</comments>
		<pubDate>Tue, 25 Nov 2014 07:03:35 +0000</pubDate>
		<dc:creator><![CDATA[Sachin Sharma]]></dc:creator>
				<category><![CDATA[Device Drivers]]></category>
		<category><![CDATA[Serial Port Driver]]></category>

		<guid isPermaLink="false">http://www.emblogic.com/blog/?p=11886</guid>
		<description><![CDATA[RCS file: header.h,v Working file: header.h head: 1.1 branch: locks: strict root: 1.1 access list: symbolic names: keyword substitution: kv total revisions: 1; selected revisions: 1 description: Implementing —————————- revision 1.1 locked by: root; date: 2014/11/25 06:17:53; author: root; state: &#8230; <a href="https://www.emblogic.com/blog/11/sending-data-using-circular-buffer-through-ieee-eiatia-232e-specification-and-associated-serial-port-device-driverimplementing-rs-232-protocol/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
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<p>RCS file: header.h,v<br />
Working file: header.h<br />
head: 1.1<br />
branch:<br />
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description:<br />
Implementing<br />
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revision 1.1 locked by: root;<br />
date: 2014/11/25 06:17:53; author: root; state: Exp;<br />
Initial revision<br />
=============================================================================<br />
RCS file: declaration.h,v<br />
Working file: declaration.h<br />
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date: 2014/11/25 06:18:56; author: root; state: Exp;<br />
Initial revision<br />
============================================================================<br />
RCS file: dev_open.c,v<br />
Working file: dev_open.c<br />
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open the device<br />
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revision 1.1 locked by: root;<br />
date: 2014/11/25 06:20:22; author: root; state: Exp;<br />
Initial revision<br />
=============================================================================<br />
RCS file: dev_release.c,v<br />
Working file: dev_release.c<br />
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Release the device.<br />
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revision 1.1 locked by: root;<br />
date: 2014/11/25 06:22:30; author: root; state: Exp;<br />
Initial revision<br />
=============================================================================<br />
RCS file: initilization.c,v<br />
Working file: initilization.c<br />
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Implemented check_region(), release_region() and request_region().<br />
—————————-<br />
revision 1.1 locked by: root;<br />
date: 2014/11/25 06:28:58; author: root; state: Exp;<br />
Initial revision<br />
=============================================================================<br />
RCS file: cleanup.c,v<br />
Working file: cleanup.c<br />
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Implemented release_region().<br />
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revision 1.1 locked by: root;<br />
date: 2014/11/25 06:30:56; author: root; state: Exp;<br />
Initial revision<br />
=============================================================================<br />
RCS file: dev_write.c,v<br />
Working file: dev_write.c<br />
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Written 100k byte data serially implementing RS 232 protocol.<br />
Data written through circular Buffer. Data Transfered by following proper handshaking Mechanism by Using LSR, and MCR and MSR registers.</p>
<p>It took 1.53 min to read the data<br />
—————————-<br />
revision 1.1 locked by: root;<br />
date: 2014/11/25 06:27:06; author: root; state: Exp;<br />
Initial revision<br />
=============================================================================<br />
RCS file: dev_read.c,v<br />
Working file: dev_read.c<br />
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description:<br />
Read 100k byte data serially.</p>
<p>Data Recieved by following proper handshaking Mechanism by Using LSR, and MCR and MSR registers.</p>
<p>—————————-<br />
revision 1.1 locked by: root;<br />
date: 2014/11/25 06:33:55; author: root; state: Exp;<br />
Initial revision<br />
=============================================================================<br />
RCS file: file_op.h,v<br />
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revision 1.1 locked by: root;<br />
date: 2014/11/25 06:35:37; author: root; state: Exp;<br />
Initial revision<br />
=============================================================================</p>
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		</item>
		<item>
		<title>compatibility mode communication&#8211; IEEE  standard 1284-1994, parallel port device driver</title>
		<link>https://www.emblogic.com/blog/11/compatibility-mode-communication-ieee-standard-1284-1994-parallel-port-device-driver/</link>
		<comments>https://www.emblogic.com/blog/11/compatibility-mode-communication-ieee-standard-1284-1994-parallel-port-device-driver/#comments</comments>
		<pubDate>Tue, 11 Nov 2014 06:13:48 +0000</pubDate>
		<dc:creator><![CDATA[Sachin Sharma]]></dc:creator>
				<category><![CDATA[Parallel Port Driver]]></category>

		<guid isPermaLink="false">http://www.emblogic.com/blog/?p=11766</guid>
		<description><![CDATA[RCS file: header.h,v Working file: header.h head: 1.1 branch: locks: strict emblogic: 1.1 access list: symbolic names: keyword substitution: kv total revisions: 1;    selected revisions: 1 description: included header files &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;- revision 1.1    locked by: emblogic; date: 2014/11/11 05:29:43;  author: &#8230; <a href="https://www.emblogic.com/blog/11/compatibility-mode-communication-ieee-standard-1284-1994-parallel-port-device-driver/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
				<content:encoded><![CDATA[<p>RCS file: header.h,v<br />
Working file: header.h<br />
head: 1.1<br />
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included header files<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
revision 1.1    locked by: emblogic;<br />
date: 2014/11/11 05:29:43;  author: emblogic;  state: Exp;<br />
Initial revision<br />
=============================================================================</p>
<p>RCS file: dec.h,v<br />
Working file: dec.h<br />
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&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
revision 1.1    locked by: emblogic;<br />
date: 2014/11/11 05:30:45;  author: emblogic;  state: Exp;<br />
Initial revision<br />
=============================================================================</p>
<p>RCS file: initialization.c,v<br />
Working file: initialization.c<br />
head: 1.2<br />
branch:<br />
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description:<br />
implemented the check_region(), release_region() for checking the availability of region<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
revision 1.2    locked by: emblogic;<br />
date: 2014/11/11 05:33:43;  author: emblogic;  state: Exp;  lines: +2 -2<br />
implemented the  request_region()<br />
=============================================================================</p>
<p>RCS file: fileop.h,v<br />
Working file: fileop.h<br />
head: 1.1<br />
branch:<br />
locks: strict<br />
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total revisions: 1;    selected revisions: 0<br />
description:<br />
=============================================================================</p>
<p>RCS file: dev_open.c,v<br />
Working file: dev_open.c<br />
head: 1.1<br />
branch:<br />
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total revisions: 1;    selected revisions: 1<br />
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&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
revision 1.1    locked by: emblogic;<br />
date: 2014/11/11 05:32:50;  author: emblogic;  state: Exp;<br />
Initial revision<br />
=============================================================================</p>
<p>RCS file: dev_write.c,v<br />
Working file: dev_write.c<br />
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emblogic: 1.3<br />
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total revisions: 3;    selected revisions: 1<br />
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&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
revision 1.3    locked by: emblogic;<br />
date: 2014/11/11 05:40:03;  author: emblogic;  state: Exp;  lines: +1 -0<br />
followed the protocols : send the strobe.<br />
to allow the reader to read the data,before send the strobe to reader,this verified  the busy status.. ============================================================================</p>
<p>RCS file: cleanup.c,v<br />
Working file: cleanup.c<br />
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total revisions: 2;    selected revisions: 1<br />
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&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
revision 1.2    locked by: emblogic;<br />
date: 2014/11/11 05:35:23;  author: emblogic;  state: Exp;  lines: +2 -0<br />
implemented release_region foe releasing the region ,<br />
=============================================================================</p>
<p>RCS file: dev_read.c,v<br />
Working file: dev_read.c<br />
head: 1.2<br />
branch:<br />
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emblogic: 1.2<br />
access list:<br />
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total revisions: 2;    selected revisions: 1<br />
description:<br />
following the protocols first send the busy to writer.and wait for strobe signal from writer.<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
revision 1.2    locked by: emblogic;<br />
date: 2014/11/11 05:57:34;  author: emblogic;  state: Exp;  lines: +2 -2<br />
after receiving the strobe from the writter received the data sucessfully.<br />
=============================================================================</p>
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