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</o:shapelayout></xml><![endif]--></head><body lang=EN-NZ link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>No, as I said before the Etherlab master will recognise EoE devices and make a Linux network interface for them. So you send regular Ethernet packets to that interface, just as you would any other physical network interface.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Ruika You [mailto:crazylinuxcnc@gmail.com] <br><b>Sent:</b> Tuesday, 9 May 2017 03:00<br><b>To:</b> Gavin Lambert <gavin.lambert@compacsort.com><br><b>Cc:</b> etherlab-users@etherlab.org<br><b>Subject:</b> Re: [etherlab-users] how to implement EoE example?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Thanks!<o:p></o:p></p><div><p class=MsoNormal>I read beckhoff EL6614 document carefully again. <o:p></o:p></p></div><div><p class=MsoNormal>As I understood, data is transferred by mailbox. So can I just use SDO to send and receive data?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Refer to <<i><u><a href="https://infosys.beckhoff.com/english.php?content=../content/1033/el6601_el6614/2356692619.html&id=">https://infosys.beckhoff.com/english.php?content=../content/1033/el6601_el6614/2356692619.html&id=</a></u></i>>.<o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Fri, May 5, 2017 at 10:52 PM, Ruika You <<a href="mailto:crazylinuxcnc@gmail.com" target="_blank">crazylinuxcnc@gmail.com</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><p class=MsoNormal>Thanks for your reply.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>You mean I no need to write kernel module for EoE, even though EoE is kernel module of ethercat master. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I found some useful information from follow post:<o:p></o:p></p></div><div><p class=MsoNormal><<i><u><a href="https://www.mail-archive.com/etherlab-users@etherlab.org/msg01559.html" target="_blank">https://www.mail-archive.com/etherlab-users@etherlab.org/msg01559.html</a></u></i>><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>As Thomas Bitsky, Jr. comment:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><pre style='white-space:pre-wrap;word-wrap:break-word'><span style='font-size:10.5pt;font-family:Courier;color:black'>void<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>send_callback(void *cb_data)<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>{<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>ec_master_t *m = (ec_master_t *) cb_data;<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'> down(&master_sem);<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>ecrt_master_send_ext(m);<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'> up(&master_sem);<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>}<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'><o:p> </o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>void<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>receive_callback(void *cb_data)<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>{<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>ec_master_t *m = (ec_master_t *) cb_data;<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'> down(&master_sem);<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>ecrt_master_receive(m);<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'> up(&master_sem);<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'> }<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'><o:p> </o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>If they are not in the program and activated by ecrt_master_callbacks, then<o:p></o:p></span></pre><pre><span style='font-size:10.5pt;font-family:Courier;color:black'>there is no lock-up. Of course, EoE doesn't work.<o:p></o:p></span></pre></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I will add code into user space application and give a try. But I confused that how can I send data and receive data if there is no call back function?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks!<o:p></o:p></p></div><div><p class=MsoNormal>-chengxi <o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div></div><div><div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Fri, May 5, 2017 at 7:27 AM, Gavin Lambert <<a href="mailto:gavinl@compacsort.com" target="_blank">gavinl@compacsort.com</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>I don’t use EoE myself, but as I understand it the kernel component of the master (which exists even if your application is only in userspace) creates regular Linux ethernet devices for the EoE ports of the slaves, and takes care of the message relaying itself. So your application doesn’t need to do anything special and the userspace application (or any other process on the PC) can send packets to those devices just like any other network interface. You might need to assign it a static IP before regular apps will talk to it, though.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> </span><o:p></o:p></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> etherlab-users [mailto:<a href="mailto:etherlab-users-bounces@etherlab.org" target="_blank">etherlab-users-bounces@etherlab.org</a>] <b>On Behalf Of </b>Ruika You<br><b>Sent:</b> Friday, 5 May 2017 02:45<br><b>To:</b> <a href="mailto:etherlab-users@etherlab.org" target="_blank">etherlab-users@etherlab.org</a><br><b>Subject:</b> [etherlab-users] how to implement EoE example?</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Dear all,<o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Recently I am trying to implement EoE and do read all threads related EoE in this mailing list.But I still do not understand well.<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>First of all, If I am not wrong EoE only works in kernel space? Unfortunatelly, currently my application works in user space. So in this case, I had better to run two master one in user space with current application, another one in kernel space with EoE?<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Secondly, if anyone have experience with EoE, would you mind share one example?<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Now I can start EoE and ping through eoe between two machines. I am not clear how to send data and receive data, like tty serial example? but El6614 does not have .xml file.<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Any hints are appreciated.<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks very much! <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div></div></div></div></div></div></div></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></body></html>