[etherlab-users] Using EtherCAT master

Florian Pose fp at igh-essen.com
Sat Feb 16 14:14:15 CET 2008


On Fri, Feb 15, 2008 at 05:36:15PM +0100, vishal bade wrote:
> I tried it and it did not worked. When I try to "make" I get the following
> messages,
> WARNING: "ecrt_master_receive" [/home/ethercat-1.3.2/examples/mini/ec_mini.ko]
> undefined!
> [snip]

these warnings are ok, they just tell you that the given symbols are not
part of the standard kernel. The rest of the compilation looks ok.

> and when I try "insmod ec_mini.ko" I get this error message. Did I go wrong
> somewhere?
> insmod: error inserting 'ec_mini.ko': -1 Unknown symbol in modul

Could you please tell us, which symbols are undefined ('dmesg | tail' or
'tail /var/log/messages')? Did you forget to start the master? All this
is covered by the documentation. Perhaps you should read it first...

Best regards,
Florian Pose


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