Ethercat - Failed to register PDO entry: No such file or directory

sorry I understand if the problem is the EL7.... device what?
or communicate with arduino

Sorry for the poor explanation. The problem is with the EasyCAT. I can not make it to receive and send signals.

The xml you posted is for EasyI/O,
for EasyCAT it is this try it if you see, I used it for an MPG pendant and it works

Unfortunately not working yet.
I see all the pins in halshow, I can trigger them but on the hw side (EtherCAT arduino hat) nothing happens.

Here is the modified xml

Could you share your xml?

The correct configurtion for the standard 32+32 bytes configuration of the EasyCAT boards is this:

<masters>
<master idx="0" appTimePeriod="1000000" refClockSyncCycles="1">
<!--EasyCAT board-->
<slave idx="0" type="generic" vid="0000079A" pid="00DEFEDE" configPdos="true">
<syncManager idx="0" dir="out">
<pdo idx="1600">
<pdoEntry idx="5" subIdx="01" bitLen="8" halPin="Byte0" halType="u32"/>
<pdoEntry idx="5" subIdx="02" bitLen="8" halPin="Byte1" halType="u32"/>
<pdoEntry idx="5" subIdx="03" bitLen="8" halPin="Byte2" halType="u32"/>
<pdoEntry idx="5" subIdx="04" bitLen="8" halPin="Byte3" halType="u32"/>
<pdoEntry idx="5" subIdx="05" bitLen="8" halPin="Byte4" halType="u32"/>
<pdoEntry idx="5" subIdx="06" bitLen="8" halPin="Byte5" halType="u32"/>
<pdoEntry idx="5" subIdx="07" bitLen="8" halPin="Byte6" halType="u32"/>
<pdoEntry idx="5" subIdx="08" bitLen="8" halPin="Byte7" halType="u32"/>
<pdoEntry idx="5" subIdx="09" bitLen="8" halPin="Byte8" halType="u32"/>
<pdoEntry idx="5" subIdx="10" bitLen="8" halPin="Byte9" halType="u32"/>
<pdoEntry idx="5" subIdx="11" bitLen="8" halPin="Byte10" halType="u32"/>
<pdoEntry idx="5" subIdx="12" bitLen="8" halPin="Byte11" halType="u32"/>
<pdoEntry idx="5" subIdx="13" bitLen="8" halPin="Byte12" halType="u32"/>
<pdoEntry idx="5" subIdx="14" bitLen="8" halPin="Byte13" halType="u32"/>
<pdoEntry idx="5" subIdx="15" bitLen="8" halPin="Byte14" halType="u32"/>
<pdoEntry idx="5" subIdx="16" bitLen="8" halPin="Byte15" halType="u32"/>
<pdoEntry idx="5" subIdx="17" bitLen="8" halPin="Byte16" halType="u32"/>
<pdoEntry idx="5" subIdx="18" bitLen="8" halPin="Byte17" halType="u32"/>
<pdoEntry idx="5" subIdx="19" bitLen="8" halPin="Byte18" halType="u32"/>
<pdoEntry idx="5" subIdx="20" bitLen="8" halPin="Byte19" halType="u32"/>
<pdoEntry idx="5" subIdx="21" bitLen="8" halPin="Byte20" halType="u32"/>
<pdoEntry idx="5" subIdx="22" bitLen="8" halPin="Byte21" halType="u32"/>
<pdoEntry idx="5" subIdx="23" bitLen="8" halPin="Byte22" halType="u32"/>
<pdoEntry idx="5" subIdx="24" bitLen="8" halPin="Byte23" halType="u32"/>
<pdoEntry idx="5" subIdx="25" bitLen="8" halPin="Byte24" halType="u32"/>
<pdoEntry idx="5" subIdx="26" bitLen="8" halPin="Byte25" halType="u32"/>
<pdoEntry idx="5" subIdx="27" bitLen="8" halPin="Byte26" halType="u32"/>
<pdoEntry idx="5" subIdx="28" bitLen="8" halPin="Byte27" halType="u32"/>
<pdoEntry idx="5" subIdx="29" bitLen="8" halPin="Byte28" halType="u32"/>
<pdoEntry idx="5" subIdx="30" bitLen="8" halPin="Byte29" halType="u32"/>
<pdoEntry idx="5" subIdx="31" bitLen="8" halPin="Byte30" halType="u32"/>
<pdoEntry idx="5" subIdx="32" bitLen="8" halPin="Byte31" halType="u32"/>
</pdo>
</syncManager>
<syncManager idx="1" dir="in">
<pdo idx="1a00">
<pdoEntry idx="5" subIdx="01" bitLen="8" halPin="Byte0" halType="u32"/>
<pdoEntry idx="5" subIdx="02" bitLen="8" halPin="Byte1" halType="u32"/>
<pdoEntry idx="5" subIdx="03" bitLen="8" halPin="Byte2" halType="u32"/>
<pdoEntry idx="5" subIdx="04" bitLen="8" halPin="Byte3" halType="u32"/>
<pdoEntry idx="5" subIdx="05" bitLen="8" halPin="Byte4" halType="u32"/>
<pdoEntry idx="5" subIdx="06" bitLen="8" halPin="Byte5" halType="u32"/>
<pdoEntry idx="5" subIdx="07" bitLen="8" halPin="Byte6" halType="u32"/>
<pdoEntry idx="5" subIdx="08" bitLen="8" halPin="Byte7" halType="u32"/>
<pdoEntry idx="5" subIdx="09" bitLen="8" halPin="Byte8" halType="u32"/>
<pdoEntry idx="5" subIdx="10" bitLen="8" halPin="Byte9" halType="u32"/>
<pdoEntry idx="5" subIdx="11" bitLen="8" halPin="Byte10" halType="u32"/>
<pdoEntry idx="5" subIdx="12" bitLen="8" halPin="Byte11" halType="u32"/>
<pdoEntry idx="5" subIdx="13" bitLen="8" halPin="Byte12" halType="u32"/>
<pdoEntry idx="5" subIdx="14" bitLen="8" halPin="Byte13" halType="u32"/>
<pdoEntry idx="5" subIdx="15" bitLen="8" halPin="Byte14" halType="u32"/>
<pdoEntry idx="5" subIdx="16" bitLen="8" halPin="Byte15" halType="u32"/>
<pdoEntry idx="5" subIdx="17" bitLen="8" halPin="Byte16" halType="u32"/>
<pdoEntry idx="5" subIdx="18" bitLen="8" halPin="Byte17" halType="u32"/>
<pdoEntry idx="5" subIdx="19" bitLen="8" halPin="Byte18" halType="u32"/>
<pdoEntry idx="5" subIdx="20" bitLen="8" halPin="Byte19" halType="u32"/>
<pdoEntry idx="5" subIdx="21" bitLen="8" halPin="Byte20" halType="u32"/>
<pdoEntry idx="5" subIdx="22" bitLen="8" halPin="Byte21" halType="u32"/>
<pdoEntry idx="5" subIdx="23" bitLen="8" halPin="Byte22" halType="u32"/>
<pdoEntry idx="5" subIdx="24" bitLen="8" halPin="Byte23" halType="u32"/>
<pdoEntry idx="5" subIdx="25" bitLen="8" halPin="Byte24" halType="u32"/>
<pdoEntry idx="5" subIdx="26" bitLen="8" halPin="Byte25" halType="u32"/>
<pdoEntry idx="5" subIdx="27" bitLen="8" halPin="Byte26" halType="u32"/>
<pdoEntry idx="5" subIdx="28" bitLen="8" halPin="Byte27" halType="u32"/>
<pdoEntry idx="5" subIdx="29" bitLen="8" halPin="Byte28" halType="u32"/>
<pdoEntry idx="5" subIdx="30" bitLen="8" halPin="Byte29" halType="u32"/>
<pdoEntry idx="5" subIdx="31" bitLen="8" halPin="Byte30" halType="u32"/>
<pdoEntry idx="5" subIdx="32" bitLen="8" halPin="Byte31" halType="u32"/>
</pdo>
</syncManager>
</slave>
</master>
</masters>

Thanks, I've been trying for a while to use this arduino hat, with moderate success.

LCNC crashes while I put the exact code in the xml, then I changed to this, and it starts:
<pdoEntry idx="5" subIdx="01" bitLen="8" halPin="out-0" halType="u32"/>
<pdoEntry idx="5" subIdx="02" bitLen="8" halPin="out-1" halType="u32"/>
<pdoEntry idx="5" subIdx="03" bitLen="8" halPin="out-2" halType="u32"/>
....

My question is:
When I set the out-0 to 1 it changes the in-0 (old name Byte0) to 1 and lits up the OUT0 LED on the test board. But, when I set the out-1 to 1, still changing the in-1 to 1, but nothing happens on OUT1 LED.

How exactly can I use the board?
And how can I reach the analog ports? On the test board there is 2 analog inputs ANA0 and ANA1.

Thanks.

Hey please make sure you are calling ecrt_slave_config_pdos with sync manager.

I still haven't been able to use the EasyCAT board. Could you please share the XML you use for it? Also, do the inputs work for you and the analog one?