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<channel>
	<title>Arturo Plauchu</title>
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	<link>http://plauchu.wordpress.com</link>
	<description>Arturo Plauchu Blog. C'est la vie!, GNU/Derechos y GNU/Izquierdos Medio Reservados 2007-2008.</description>
	<lastBuildDate>Mon, 02 Nov 2009 23:27:25 +0000</lastBuildDate>
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		<title>Arturo Plauchu</title>
		<link>http://plauchu.wordpress.com</link>
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			<item>
		<title>New Job</title>
		<link>http://plauchu.wordpress.com/2009/11/02/new-job/</link>
		<comments>http://plauchu.wordpress.com/2009/11/02/new-job/#comments</comments>
		<pubDate>Mon, 02 Nov 2009 23:27:25 +0000</pubDate>
		<dc:creator>Arturo Plauchu</dc:creator>
				<category><![CDATA[Amigos]]></category>

		<guid isPermaLink="false">http://plauchu.wordpress.com/?p=521</guid>
		<description><![CDATA[Hi, I was in transactional state, I changed my job and now the new challenges are in the Air (as Love&#8217;s in the Air song). I hope I will be fine in my new job at Sasken. Good Luck Chu!! and See you later alligators!!
       <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=plauchu.wordpress.com&blog=599200&post=521&subd=plauchu&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Hi, I was in transactional state, I changed my job and now the new challenges are in the Air (as Love&#8217;s in the Air song). I hope I will be fine in my new job at <a href="http://www.sasken.com">Sasken</a>. Good Luck Chu!! and See you later alligators!!</p>
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			<media:title type="html">plauchu</media:title>
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	</item>
		<item>
		<title>Shared memory in QNX</title>
		<link>http://plauchu.wordpress.com/2009/09/11/shared-memory-in-qnx/</link>
		<comments>http://plauchu.wordpress.com/2009/09/11/shared-memory-in-qnx/#comments</comments>
		<pubDate>Fri, 11 Sep 2009 16:28:38 +0000</pubDate>
		<dc:creator>Arturo Plauchu</dc:creator>
				<category><![CDATA[Amigos]]></category>

		<guid isPermaLink="false">http://plauchu.wordpress.com/?p=516</guid>
		<description><![CDATA[
Hi everybody!! I give you an example how to use shared memory in QNX using mmap.
First we are going to set our data structure.

#include stdio.h
#include string.h
#include fcntl.h
#include errno.h
#include stdlib.h
#include unistd.h
#include limits.h
#include sys/mman.h
typedef struct{
	int a;
	int b;
}s_t;
int main( int argc, char** argv )
{
	int fd;
	s_t *addr;
	addr = calloc(2, sizeof(s_t));
	fd = shm_open( "/mi_memoria", O_RDWR &#124; O_CREAT, 0777 );
	if( fd [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=plauchu.wordpress.com&blog=599200&post=516&subd=plauchu&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p align="center"><img src="http://www.swd.de/documents/manuals/neutrino/images/mmap.gif" /></p>
<p>Hi everybody!! I give you an example how to use shared memory in QNX using mmap.</p>
<p>First we are going to set our data structure.</p>
<blockquote><p><code><br />
#include stdio.h<br />
#include string.h<br />
#include fcntl.h<br />
#include errno.h<br />
#include stdlib.h<br />
#include unistd.h<br />
#include limits.h<br />
#include sys/mman.h</p>
<p>typedef struct{<br />
	int a;<br />
	int b;<br />
}s_t;</p>
<p>int main( int argc, char** argv )<br />
{<br />
	int fd;<br />
	s_t *addr;</p>
<p>	addr = calloc(2, sizeof(s_t));</p>
<p>	fd = shm_open( "/mi_memoria", O_RDWR | O_CREAT, 0777 );<br />
	if( fd == -1 ) {<br />
		fprintf( stderr, "Open failed:%s\n", strerror( errno ) );<br />
		return EXIT_FAILURE;<br />
	}</p>
<p>	if( ftruncate( fd, (size_t)(sizeof( addr )*2) ) == -1 ) {<br />
		fprintf( stderr, "ftruncate: %s\n", strerror( errno ) );<br />
		return EXIT_FAILURE;<br />
	}</p>
<p>	addr = mmap( 0, (size_t)(sizeof( addr )*2) , PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0 );<br />
	if( addr == MAP_FAILED ) {<br />
		fprintf( stderr, "mmap failed: %s\n", strerror( errno ) );<br />
		return EXIT_FAILURE;<br />
	}</p>
<p>	printf( "Map addr is 0x%08x\n", addr );</p>
<p>	addr[0].a = 1;<br />
	addr[0].b = 2;<br />
	addr[1].a = 3;<br />
	addr[1].b = 4;</p>
<p>	close( fd );</p>
<p>	return EXIT_SUCCESS;<br />
}<br />
</code></p></blockquote>
<p>So&#8230;. we are going to read or write our shared memory with the same code minus the O_CREAT FLAG at open the file descriptor with the memry path <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_biggrin.gif' alt=':D' class='wp-smiley' /> </p>
<blockquote><p><code><br />
#include<br />
#include stdio.h<br />
#include string.h<br />
#include fcntl.h<br />
#include errno.h<br />
#include stdlib.h<br />
#include unistd.h<br />
#include limits.h<br />
#include sys/mman.h</p>
<p>typedef struct{<br />
	int a;<br />
	int b;<br />
}s_t;</p>
<p>int main( int argc, char** argv )<br />
{<br />
	int fd;<br />
	s_t *addr = NULL;</p>
<p>	addr = calloc(2, sizeof(s_t));</p>
<p>	fd = shm_open( "/mi_memoria", O_RDWR, 0777 );<br />
	if( fd == -1 ) {<br />
		fprintf( stderr, "Open failed:%s\n", strerror( errno ) );<br />
		return EXIT_FAILURE;<br />
	}</p>
<p>	if( ftruncate( fd, (size_t)(sizeof( addr )*2) ) == -1 ) {<br />
		fprintf( stderr, "ftruncate: %s\n", strerror( errno ) );<br />
		return EXIT_FAILURE;<br />
	}</p>
<p>	addr = mmap( 0, (size_t)(sizeof( addr )*2) , PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0 );<br />
	if( addr == MAP_FAILED ) {<br />
		fprintf( stderr, "mmap failed: %s\n", strerror( errno ) );<br />
		return EXIT_FAILURE;<br />
	}</p>
<p>	while(addr-&gt;a != NULL){<br />
		printf( "Map addr is 0x%08x\n", addr );<br />
		printf( "Map value a %d \n", addr-&gt;a );<br />
		printf( "Map value b %d \n", addr-&gt;b );<br />
		addr++;<br />
	}</p>
<p>	close( fd );</p>
<p>	return EXIT_SUCCESS;<br />
}<br />
</code></p></blockquote>
<p>And wala!!!!!! This code can save you a redundant data storage or I don&#8217;t know that you have to know what jejeje. Bye!</p>
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			<media:title type="html">plauchu</media:title>
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	</item>
		<item>
		<title>OCB and Resource Managers</title>
		<link>http://plauchu.wordpress.com/2009/07/29/ocb-and-resour-managers/</link>
		<comments>http://plauchu.wordpress.com/2009/07/29/ocb-and-resour-managers/#comments</comments>
		<pubDate>Wed, 29 Jul 2009 22:20:58 +0000</pubDate>
		<dc:creator>Arturo Plauchu</dc:creator>
				<category><![CDATA[Ciencia]]></category>

		<guid isPermaLink="false">http://plauchu.wordpress.com/?p=505</guid>
		<description><![CDATA[
I registered my device names /dev/plc and /dev/plc/0-20. Now I&#8217;m using the OCB&#8230; the second would drive the first 20 bytes in data (for example).
well&#8230; Where is the data struct who give me the name for the device (in a string or an unique id) that call the io_write o io_read function?.
I saw some structures [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=plauchu.wordpress.com&blog=599200&post=505&subd=plauchu&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p align="center"><img src="http://www.op-tec.co.uk/pics/large/slc500.jpg" /></p>
<p>I registered my device names /dev/plc and /dev/plc/0-20. Now I&#8217;m using the OCB&#8230; the second would drive the first 20 bytes in data (for example).</p>
<p>well&#8230; Where is the data struct who give me the name for the device (in a string or an unique id) that call the io_write o io_read function?.</p>
<p>I saw some structures and I didn&#8217;t see any member as a (char *) with the name as I wrote in the resmgr_attach() function.</p>
<p>The io_read/io_write function parameters are a IOFUNC_OCB_T pointer, a resmgr_context_t pointer and io_write_t or io_read_t pointer.</p>
<p>Is that information in a special structure?</p>
<p>I need that information to my io_read/io_write functions who call the driver functions. So&#8230; I&#8217;ll seek only the registers who i want.</p>
<p>Sorry my english. <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> . See you later alligators!</p>
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			<media:title type="html">plauchu</media:title>
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		<item>
		<title>Resource Manager, POSIX API</title>
		<link>http://plauchu.wordpress.com/2009/07/29/resource-manager-posix-api/</link>
		<comments>http://plauchu.wordpress.com/2009/07/29/resource-manager-posix-api/#comments</comments>
		<pubDate>Wed, 29 Jul 2009 22:06:44 +0000</pubDate>
		<dc:creator>Arturo Plauchu</dc:creator>
				<category><![CDATA[Ciencia]]></category>

		<guid isPermaLink="false">http://plauchu.wordpress.com/?p=503</guid>
		<description><![CDATA[
My idea was a POSIX development, thats is the reason that I want develop the RM. The communication would be via tcp/ip (serial in a future). Of course that I was thinking in a just a process but the POSIX is rounding at my mind jaja.
the first question about the RM woulb be&#8230;
How do I [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=plauchu.wordpress.com&blog=599200&post=503&subd=plauchu&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p align="center"><img src="http://www.monografias.com/trabajos6/qnx/Image1506.gif" /></p>
<p>My idea was a POSIX development, thats is the reason that I want develop the RM. The communication would be via tcp/ip (serial in a future). Of course that I was thinking in a just a process but the POSIX is rounding at my mind jaja.</p>
<p>the first question about the RM woulb be&#8230;</p>
<p>How do I do to attach the device name?&#8230; well the doumentation have that with examples. But..</p>
<p>How do I do to attach a sector device name?&#8230; for example if I want to read a address N40:1/10 (a bit) in /dev/myplc/N40/1/10 (with a cat command). am I crazy? Is this possible?&#8230; The documentation have something called OCB but it&#8217;s not clear to me&#8230;yet Smile.</p>
<p>Thanks all, and good luck.</p>
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		<title>Resource Managers in QNX</title>
		<link>http://plauchu.wordpress.com/2009/07/29/resource-managers-in-qnx/</link>
		<comments>http://plauchu.wordpress.com/2009/07/29/resource-managers-in-qnx/#comments</comments>
		<pubDate>Wed, 29 Jul 2009 21:58:49 +0000</pubDate>
		<dc:creator>Arturo Plauchu</dc:creator>
				<category><![CDATA[Amigos]]></category>

		<guid isPermaLink="false">http://plauchu.wordpress.com/?p=500</guid>
		<description><![CDATA[I&#8217;m trying to develop a resource manager but I don&#8217;t have idea how to develop this for plc AB SLC 504 or any. This forum will try to know &#8220;How&#8221;.

Steps:
1.- Resource Manager (attach the device name and device register access, etc)
2.- Driver
Documentation:
http://www.qnx.com/developers/docs/6.3.2/neutrino/prog/resmgr.html
A guide, extra documentation&#8230; anything?&#8230;. Consulting work? &#8230;. it&#8217;s only for fun and knowledge. [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=plauchu.wordpress.com&blog=599200&post=500&subd=plauchu&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>I&#8217;m trying to develop a resource manager but I don&#8217;t have idea how to develop this for plc AB SLC 504 or any. This forum will try to know &#8220;How&#8221;.</p>
<p align="center"><img src="http://www.qnx.com/developers/docs/6.3.2/neutrino/prog/images/clidevs.jpg" /></p>
<p>Steps:<br />
1.- Resource Manager (attach the device name and device register access, etc)<br />
2.- Driver</p>
<p>Documentation:<br />
http://www.qnx.com/developers/docs/6.3.2/neutrino/prog/resmgr.html</p>
<p>A guide, extra documentation&#8230; anything?&#8230;. Consulting work? &#8230;. it&#8217;s only for fun and knowledge. The PLC was a gift jeje Very Happy. Any knowledge about that I&#8217;ll write it here&#8230;. sorry my english.</p>
<p>Thanks</p>
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		<title>QNX y la vida de los RTOS en un geek como yo</title>
		<link>http://plauchu.wordpress.com/2009/07/20/qnx-y-la-vida-de-los-rtos-en-un-geek-como-yo/</link>
		<comments>http://plauchu.wordpress.com/2009/07/20/qnx-y-la-vida-de-los-rtos-en-un-geek-como-yo/#comments</comments>
		<pubDate>Mon, 20 Jul 2009 22:57:19 +0000</pubDate>
		<dc:creator>Arturo Plauchu</dc:creator>
				<category><![CDATA[Amigos]]></category>

		<guid isPermaLink="false">http://plauchu.wordpress.com/?p=497</guid>
		<description><![CDATA[
Ya hace mucho que no escribia en mi blog pero regreso para narrar una de mis nuevas aventuras en el mundo del software.
Oye Chu pero en que andas?.
Despues de estar desarrollando Redes Sociales para la Web2.0 decidi cambiar el giro de las cosas y pense &#8220;Esto de la informatica APESTA&#8221;, si ya lo saben, la [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=plauchu.wordpress.com&blog=599200&post=497&subd=plauchu&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p align="center"><img src="http://autsys.tkk.fi/intranet/as-0.3200/attach/S09-09/autt-1.jpg" /></p>
<p>Ya hace mucho que no escribia en mi blog pero regreso para narrar una de mis nuevas aventuras en el mundo del software.</p>
<p>Oye Chu pero en que andas?.</p>
<p>Despues de estar desarrollando Redes Sociales para la Web2.0 decidi cambiar el giro de las cosas y pense &#8220;Esto de la informatica APESTA&#8221;, si ya lo saben, la informatica tipica de alta, cambios, bajas, etc, etc y todas sus sandeces repetitivas en el modelo CRUD, me tienen hasta el zopete!!. </p>
<p>Regrese al mundo de la Automatizacion. Ese mundo me dejo el ojo puesto en un sistema operativo de tiempo real llamado QNX, lo he empezado a estudiar (sin antes mencionar que estube cerca de 2 años programando en un nivel mas alto. Maquinas de Estado, Hilos, etc.). Ahora que he decidido que ese tipo de programacion ya me tiene hasta el zopete, decidi incursar en la programacion a nivel sistema operativo y drivers, un poco bajo nivel <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> . </p>
<p>Ahora estoy programando a nivel del microKernel de QNX Neutrino. Estudiando IPC, Resouce Managers, etc. Estoy agusto por el momento. He decidido que ya basta de leer por el momento y es tiempo de hechar codigo y estoy desarrollando y adaptando mi Resource Manager para despues crear unos drivers para cierta marca de PLC y otras mas. Ojala pueda crear una arquitectura lo bastante solida que me sienta orgulloso, y asi regodearme en mi ego geek que todos Ing. en Sistemas Comp. deberian por lo menos tener para contribuir a la comunidad y hacer a Mexico un poco mas competitivo no creen?.</p>
<p>Espero seguir en este tipo de programacion tanto para el Kernel Linux y el microKernel de QNX, ya que realmente la informatica tradicional me aburre. No se preocupen sigo siendo Linuxero, pero para RTOS, QNX. Lo que es del Cesar para el Cesar.</p>
<p>Y para los que se preguntan como me va en mi vida de casado&#8230;. pues me va muy bien <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> . Viviendo en mi depa y todo lecho de rosas.</p>
<p>Bueno eso es todo. Me retiro sin antes decirles. See you later alligators.</p>
<p>En la imagen de arriba &#8220;S09-09 Development of AUTT-1 Robot&#8221;.<br />
System:<br />
* PC-104 &#8220;Emu&#8221; o 233MHz PC with ethernet, CAN bus and motor controllers o 32Mb Disk-On-Chip o Running real-time operating system QNX Neutrino * Two motors in front wheels o Optical encoders for feedback * CAN-Gyro module o Three gyroscopes o Connected to the CAN bus * Sony EVI-D31 Camera<br />
<a href="http://autsys.tkk.fi/intranet/as-0.3200/S09-09">http://autsys.tkk.fi/intranet/as-0.3200/S09-09</a><br />
¿Cuando las universidades Mexicanas podran emprender proyectos solo para inovacion y no solo por tesis para cumplir el requisito de titulacion?. Ya hubiera querido que mi Universidad o cualquier otra me hubiera financiado un proyecto tan simple (a simple vista pero dificil ante todo) como el anterior. Simplemente irreal aqui en Mexico.</p>
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		<title>Boda Abril 2009</title>
		<link>http://plauchu.wordpress.com/2009/03/29/boda-abril-2009/</link>
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		<pubDate>Sun, 29 Mar 2009 21:11:45 +0000</pubDate>
		<dc:creator>Arturo Plauchu</dc:creator>
				<category><![CDATA[Amigos]]></category>

		<guid isPermaLink="false">http://plauchu.wordpress.com/?p=493</guid>
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Feliz Matrimoneichon  !!.  Fam. Plauchu Holguín Abril 4 2009.
Gracias adelantadas a todos los que van a asistir.
Una disculpa a todos los que no fueron invitados pero no poseo una boveda como la de Rico McPato para alimentar todo un regimiento.

Lugar : Durango, Durango, México
Fecha : 4 de Abril 2009
Invitados : 200
Luna de Miel [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=plauchu.wordpress.com&blog=599200&post=493&subd=plauchu&ref=&feed=1" />]]></description>
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<p>Feliz Matrimoneichon <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_biggrin.gif' alt=':D' class='wp-smiley' /> !!.  Fam. Plauchu Holguín Abril 4 2009.<br />
Gracias adelantadas a todos los que van a asistir.<br />
Una disculpa a todos los que no fueron invitados pero no poseo una boveda como la de Rico McPato para alimentar todo un regimiento.</p>
<blockquote><p>
Lugar : Durango, Durango, México<br />
Fecha : 4 de Abril 2009<br />
Invitados : 200<br />
Luna de Miel : playita agusto Manzanillo, Colima, México.
</p></blockquote>
<p><img src="http://www.tesororesorts.com/user-assets/Images/gallery/manzanillo/A_manzanillo.jpg" width="500"></p>
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		<title>Listos para la boda. Abril 2009</title>
		<link>http://plauchu.wordpress.com/2009/03/08/listos-para-la-boda-abril-2009/</link>
		<comments>http://plauchu.wordpress.com/2009/03/08/listos-para-la-boda-abril-2009/#comments</comments>
		<pubDate>Mon, 09 Mar 2009 03:08:47 +0000</pubDate>
		<dc:creator>Arturo Plauchu</dc:creator>
				<category><![CDATA[Amigos]]></category>

		<guid isPermaLink="false">http://plauchu.wordpress.com/?p=414</guid>
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Hola que tal. Ya falta poco para mi boda. Los preparativos ya casi estan al 100%. Ya van a salir las invitaciones aunque la verdad a este punto ya se sabe quien esta invitado.  La mesa de regalos esta en Liverpool, aunque no es de a fuerza no me hagan drama jejej  . [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=plauchu.wordpress.com&blog=599200&post=414&subd=plauchu&ref=&feed=1" />]]></description>
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<p>Hola que tal. Ya falta poco para mi boda. Los preparativos ya casi estan al 100%. Ya van a salir las invitaciones aunque la verdad a este punto ya se sabe quien esta invitado.  La mesa de regalos esta en Liverpool, aunque no es de a fuerza no me hagan drama jejej <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_razz.gif' alt=':P' class='wp-smiley' /> . Pero tampoco sean marrosss jajaja ayudenme a ayudar XD.<br />
Voy a estar de Luna de  miel toda la semana Santa. Bueno este es mi ultimo post como novio (aunque ya estoy casado por el civil pero esta es la buena). Deseenme suerte y see you later alligators!!!</p>
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