Re: [etherlab-users] how to implement EoE example?
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.
From: Ruika You [mailto:crazylinux...@gmail.com]
Sent: Tuesday, 9 May 2017 03:00
To: Gavin Lambert <gavin.lamb...@compacsort.com>
Cc: etherlab-users@etherlab.org
Subject: Re: [etherlab-users] how to implement EoE example?
Thanks!
I read beckhoff EL6614 document carefully again.
As I understood, data is transferred by mailbox. So can I just use SDO to send
and receive data?
Refer to
<https://infosys.beckhoff.com/english.php?content=../content/1033/el6601_el6614/2356692619.html
<https://infosys.beckhoff.com/english.php?content=../content/1033/el6601_el6614/2356692619.html=>
=>.
On Fri, May 5, 2017 at 10:52 PM, Ruika You <crazylinux...@gmail.com
<mailto:crazylinux...@gmail.com> > wrote:
Thanks for your reply.
You mean I no need to write kernel module for EoE, even though EoE is kernel
module of ethercat master.
I found some useful information from follow post:
<https://www.mail-archive.com/etherlab-users@etherlab.org/msg01559.html>
As Thomas Bitsky, Jr. comment:
void
send_callback(void *cb_data)
{
ec_master_t *m = (ec_master_t *) cb_data;
down(_sem);
ecrt_master_send_ext(m);
up(_sem);
}
void
receive_callback(void *cb_data)
{
ec_master_t *m = (ec_master_t *) cb_data;
down(_sem);
ecrt_master_receive(m);
up(_sem);
}
If they are not in the program and activated by ecrt_master_callbacks, then
there is no lock-up. Of course, EoE doesn't work.
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?
Thanks!
-chengxi
On Fri, May 5, 2017 at 7:27 AM, Gavin Lambert <gav...@compacsort.com
<mailto:gav...@compacsort.com> > wrote:
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.
From: etherlab-users [mailto:etherlab-users-boun...@etherlab.org
<mailto:etherlab-users-boun...@etherlab.org> ] On Behalf Of Ruika You
Sent: Friday, 5 May 2017 02:45
To: etherlab-users@etherlab.org <mailto:etherlab-users@etherlab.org>
Subject: [etherlab-users] how to implement EoE example?
Dear all,
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.
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?
Secondly, if anyone have experience with EoE, would you mind share one example?
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.
Any hints are appreciated.
Thanks very much!
___
etherlab-users mailing list
etherlab-users@etherlab.org
http://lists.etherlab.org/mailman/listinfo/etherlab-users
Re: [etherlab-users] how to implement EoE example?
Thanks!
I read beckhoff EL6614 document carefully again.
As I understood, data is transferred by mailbox. So can I just use SDO to
send and receive data?
Refer to
<*https://infosys.beckhoff.com/english.php?content=../content/1033/el6601_el6614/2356692619.html=
<https://infosys.beckhoff.com/english.php?content=../content/1033/el6601_el6614/2356692619.html=>*
>.
On Fri, May 5, 2017 at 10:52 PM, Ruika You <crazylinux...@gmail.com> wrote:
> Thanks for your reply.
>
> You mean I no need to write kernel module for EoE, even though EoE is
> kernel module of ethercat master.
>
> I found some useful information from follow post:
> <*https://www.mail-archive.com/etherlab-users@etherlab.org/msg01559.html
> <https://www.mail-archive.com/etherlab-users@etherlab.org/msg01559.html>*>
>
> As Thomas Bitsky, Jr. comment:
>
>> void
>> send_callback(void *cb_data)
>> {
>> ec_master_t *m = (ec_master_t *) cb_data;
>> down(_sem);
>> ecrt_master_send_ext(m);
>> up(_sem);
>> }
>>
>> void
>> receive_callback(void *cb_data)
>> {
>> ec_master_t *m = (ec_master_t *) cb_data;
>> down(_sem);
>> ecrt_master_receive(m);
>> up(_sem);
>> }
>>
>> If they are not in the program and activated by ecrt_master_callbacks, then
>> there is no lock-up. Of course, EoE doesn't work.
>>
>>
> 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?
>
> Thanks!
> -chengxi
>
>
> On Fri, May 5, 2017 at 7:27 AM, Gavin Lambert <gav...@compacsort.com>
> wrote:
>
>> 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.
>>
>>
>>
>> *From:* etherlab-users [mailto:etherlab-users-boun...@etherlab.org] *On
>> Behalf Of *Ruika You
>> *Sent:* Friday, 5 May 2017 02:45
>> *To:* etherlab-users@etherlab.org
>> *Subject:* [etherlab-users] how to implement EoE example?
>>
>>
>>
>> Dear all,
>>
>>
>>
>> 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.
>>
>> 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?
>>
>>
>>
>> Secondly, if anyone have experience with EoE, would you mind share one
>> example?
>>
>>
>>
>> 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.
>>
>>
>>
>> Any hints are appreciated.
>>
>>
>>
>> Thanks very much!
>>
>>
>>
>
>
___
etherlab-users mailing list
etherlab-users@etherlab.org
http://lists.etherlab.org/mailman/listinfo/etherlab-users
Re: [etherlab-users] how to implement EoE example?
No, you don’t need to write any kernel code, that’s already there.
The send/receive callbacks are mainly for use with RTAI or Xenomai
implementations where the application is implemented in a super-kernel layer.
You don’t need to use them for a userspace application.
From: Ruika You [mailto:crazylinux...@gmail.com]
Sent: Saturday, 6 May 2017 02:53
To: Gavin Lambert <gavin.lamb...@compacsort.com>
Cc: etherlab-users@etherlab.org
Subject: Re: [etherlab-users] how to implement EoE example?
Thanks for your reply.
You mean I no need to write kernel module for EoE, even though EoE is kernel
module of ethercat master.
I found some useful information from follow post:
<https://www.mail-archive.com/etherlab-users@etherlab.org/msg01559.html>
As Thomas Bitsky, Jr. comment:
void
send_callback(void *cb_data)
{
ec_master_t *m = (ec_master_t *) cb_data;
down(_sem);
ecrt_master_send_ext(m);
up(_sem);
}
void
receive_callback(void *cb_data)
{
ec_master_t *m = (ec_master_t *) cb_data;
down(_sem);
ecrt_master_receive(m);
up(_sem);
}
If they are not in the program and activated by ecrt_master_callbacks, then
there is no lock-up. Of course, EoE doesn't work.
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?
Thanks!
-chengxi
On Fri, May 5, 2017 at 7:27 AM, Gavin Lambert <gav...@compacsort.com
<mailto:gav...@compacsort.com> > wrote:
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.
From: etherlab-users [mailto:etherlab-users-boun...@etherlab.org
<mailto:etherlab-users-boun...@etherlab.org> ] On Behalf Of Ruika You
Sent: Friday, 5 May 2017 02:45
To: etherlab-users@etherlab.org <mailto:etherlab-users@etherlab.org>
Subject: [etherlab-users] how to implement EoE example?
Dear all,
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.
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?
Secondly, if anyone have experience with EoE, would you mind share one example?
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.
Any hints are appreciated.
Thanks very much!
___
etherlab-users mailing list
etherlab-users@etherlab.org
http://lists.etherlab.org/mailman/listinfo/etherlab-users
Re: [etherlab-users] how to implement EoE example?
Thanks for your reply.
You mean I no need to write kernel module for EoE, even though EoE is
kernel module of ethercat master.
I found some useful information from follow post:
<*https://www.mail-archive.com/etherlab-users@etherlab.org/msg01559.html
<https://www.mail-archive.com/etherlab-users@etherlab.org/msg01559.html>*>
As Thomas Bitsky, Jr. comment:
> void
> send_callback(void *cb_data)
> {
> ec_master_t *m = (ec_master_t *) cb_data;
> down(_sem);
> ecrt_master_send_ext(m);
> up(_sem);
> }
>
> void
> receive_callback(void *cb_data)
> {
> ec_master_t *m = (ec_master_t *) cb_data;
> down(_sem);
> ecrt_master_receive(m);
> up(_sem);
> }
>
> If they are not in the program and activated by ecrt_master_callbacks, then
> there is no lock-up. Of course, EoE doesn't work.
>
>
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?
Thanks!
-chengxi
On Fri, May 5, 2017 at 7:27 AM, Gavin Lambert <gav...@compacsort.com> wrote:
> 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.
>
>
>
> *From:* etherlab-users [mailto:etherlab-users-boun...@etherlab.org] *On
> Behalf Of *Ruika You
> *Sent:* Friday, 5 May 2017 02:45
> *To:* etherlab-users@etherlab.org
> *Subject:* [etherlab-users] how to implement EoE example?
>
>
>
> Dear all,
>
>
>
> 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.
>
> 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?
>
>
>
> Secondly, if anyone have experience with EoE, would you mind share one
> example?
>
>
>
> 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.
>
>
>
> Any hints are appreciated.
>
>
>
> Thanks very much!
>
>
>
___
etherlab-users mailing list
etherlab-users@etherlab.org
http://lists.etherlab.org/mailman/listinfo/etherlab-users
Re: [etherlab-users] how to implement EoE example?
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. From: etherlab-users [mailto:etherlab-users-boun...@etherlab.org] On Behalf Of Ruika You Sent: Friday, 5 May 2017 02:45 To: etherlab-users@etherlab.org Subject: [etherlab-users] how to implement EoE example? Dear all, 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. 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? Secondly, if anyone have experience with EoE, would you mind share one example? 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. Any hints are appreciated. Thanks very much! ___ etherlab-users mailing list etherlab-users@etherlab.org http://lists.etherlab.org/mailman/listinfo/etherlab-users
[etherlab-users] how to implement EoE example?
Dear all, 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. 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? Secondly, if anyone have experience with EoE, would you mind share one example? 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. Any hints are appreciated. Thanks very much! ___ etherlab-users mailing list etherlab-users@etherlab.org http://lists.etherlab.org/mailman/listinfo/etherlab-users
