I have installed IgH master in ubuntu,and I used twisted-pair linking between PC(ubuntu) and AM3359,
then,
when I execute “ethercat start” in ubuntu,appear error:(dmesg)
[11102.655707] EtherCAT: Master driver 1.5.1 0f7a243b03e4
[11102.660384] EtherCAT: 1 master waiting for devices.
[11102.682702] ec_generic: EtherCAT master generic Ethernet device module 1.5.1 0f7a243b03e4
[11102.683680] EtherCAT: Accepting device 00:0C:29:55:B7:7F for master 0.
[11102.683927] ec_generic: Binding socket to interface 2 (eth0).
[11102.684193] EtherCAT 0: Starting EtherCAT-IDLE thread.
[11102.689388] EtherCAT 0: Link state changed to UP.
[11102.696971] EtherCAT 0: 1 slave(s) responding.
[11102.697084] EtherCAT 0: Slave states: INIT.
[11102.699317] EtherCAT 0: Scanning bus.
[11102.748161] EtherCAT WARNING 0: 1 datagram TIMED OUT!
[11103.246878] EtherCAT 0: Bus scanning completed in 548 ms.
[11103.249355] EtherCAT 0: Slave states: PREOP.
[11104.740178] EtherCAT WARNING 0: 48 datagrams TIMED OUT!
[11104.740287] EtherCAT WARNING 0: 48 datagrams UNMATCHED!
[11106.284187] EtherCAT WARNING 0: 2 datagrams TIMED OUT!
[11106.284200] EtherCAT WARNING 0: 2 datagrams UNMATCHED!
[11106.383122] EtherCAT ERROR 0-0: Reception of CoE SDO entry request failed: No response.
[11108.976804] EtherCAT WARNING 0: 13 datagrams TIMED OUT!
[11108.976817] EtherCAT WARNING 0: 13 datagrams UNMATCHED!
[11118.560807] EtherCAT WARNING 0: 1 datagram TIMED OUT!
[11118.560820] EtherCAT WARNING 0: 1 datagram UNMATCHED!
[11120.416410] EtherCAT WARNING 0: 1 datagram TIMED OUT!
[11120.416425] EtherCAT WARNING 0: 1 datagram UNMATCHED!
[11122.964256] EtherCAT WARNING 0: 1 datagram TIMED OUT!
I don't know the error is due to what ? Does someone know ?
I bought AM3359 back , never to touch...
Have a Ethercat-slave program is running in firmware before sales time?Because I saw the board LED's blink that like flowing water when I power AM3359. I need to burn write firmware afresh?
I need to do what, master(ubuntu) to communicate with slave(AM3359) according to the above error ?
Someone can help me ?
Also , [11102.655707] EtherCAT: Master driver 1.5.1 0f7a243b03e4, the blue font represent what ?
Thanks !
Good luck to you !