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(&master_sem); > ecrt_master_send_ext(m); > up(&master_sem); > } > > void > receive_callback(void *cb_data) > { > ec_master_t *m = (ec_master_t *) cb_data; > down(&master_sem); > ecrt_master_receive(m); > up(&master_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! > > >
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