root@odroid:~# ethercatctl start
[   98.625808@1] EtherCAT: Master driver 1.5.2 unknown
[   98.626085@1] EtherCAT: 1 master waiting for devices.
[   98.641972@1] ec_generic: EtherCAT master generic Ethernet device module 1.5.2 unknown
[   98.645399@0] EtherCAT: Accepting 00:1E:06:C2:B1:B6 as main device for master 0.
[   98.651766@0] ec_generic: Binding socket to interface 2 (eth0).
[   98.696466@0] EtherCAT 0: Starting EtherCAT-IDLE thread.
[   98.696582@0] EtherCAT 0: Link state of ecm0 changed to UP.
[   98.706419@1] EtherCAT 0: 1 slave(s) responding on main device.
[   98.707932@1] EtherCAT 0: Slave states on main device: INIT.
[   98.713393@1] EtherCAT 0: Scanning bus.
root@odroid:~# [   98.768869@1] EtherCAT 0: Bus scanning completed in 60 ms.
[   98.768908@1] EtherCAT 0: Using slave 0 as DC reference clock.
[   98.796388@1] EtherCAT 0: Slave states on main device: PREOP.

root@odroid:~#
root@odroid:~# ethercat debug 1
[  102.383512@3] EtherCAT 0: Master debug level set to 1.
root@odroid:~#
root@odroid:~#
root@odroid:~# ethercat states OP
root@odroid:~# [  117.456335@1] EtherCAT DEBUG 0-0: Changing state from PREOP to OP.
[  117.457305@1] EtherCAT DEBUG 0-0: Configuring...
[  117.462681@1] EtherCAT DEBUG 0-0: Now in INIT.
[  117.466362@1] EtherCAT DEBUG 0-0: Clearing FMMU configurations...
[  117.472852@1] EtherCAT DEBUG 0-0: Clearing sync manager configurations...
[  117.479479@1] EtherCAT DEBUG 0-0: Clearing DC assignment...
[  117.484915@1] EtherCAT DEBUG 0-0: Configuring mailbox sync managers...
[  117.491288@1] EtherCAT DEBUG 0-0: SM0: Addr 0x1000, Size 128, Ctrl 0x26, En 1
[  117.498730@1] EtherCAT DEBUG 0-0: SM1: Addr 0x1080, Size 128, Ctrl 0x22, En 1
[  117.507313@1] EtherCAT DEBUG 0-0: Now in PREOP.
[  117.510019@1] EtherCAT DEBUG 0-0: SM2: Addr 0x1100, Size   2, Ctrl 0x24, En 1
[  117.517531@1] EtherCAT DEBUG 0-0: SM3: Addr 0x1180, Size   1, Ctrl 0x20, En 1
[  117.526215@1] EtherCAT DEBUG 0-0: Now in SAFEOP.
[  117.529726@1] EtherCAT DEBUG 0-0: Now in OP. Finished configuration.
[  117.536321@1] EtherCAT 0: Slave states on main device: OP.
[  117.596300@1] EtherCAT 0: Slave states on main device: SAFEOP + ERROR.
[  117.606338@0] EtherCAT DEBUG 0-0: OP -> SAFEOP + ERROR.
[  117.606435@0] EtherCAT ERROR 0-0: AL status message 0x001B: "Sync manager watchdog".
[  117.615800@0] EtherCAT 0-0: Acknowledged state SAFEOP.
[  117.618840@0] EtherCAT DEBUG 0-0: Changing state from SAFEOP to OP.
[  117.625027@0] EtherCAT DEBUG 0-0: Configuring...
[  117.631182@0] EtherCAT DEBUG 0-0: Now in INIT.
[  117.634058@0] EtherCAT DEBUG 0-0: Clearing FMMU configurations...
[  117.640328@0] EtherCAT DEBUG 0-0: Clearing sync manager configurations...
[  117.647040@0] EtherCAT DEBUG 0-0: Clearing DC assignment...
[  117.652525@0] EtherCAT DEBUG 0-0: Configuring mailbox sync managers...
[  117.659031@0] EtherCAT DEBUG 0-0: SM0: Addr 0x1000, Size 128, Ctrl 0x26, En 1
[  117.666116@0] EtherCAT DEBUG 0-0: SM1: Addr 0x1080, Size 128, Ctrl 0x22, En 1
[  117.675847@0] EtherCAT DEBUG 0-0: Now in PREOP.
[  117.677809@0] EtherCAT DEBUG 0-0: SM2: Addr 0x1100, Size   2, Ctrl 0x24, En 1
[  117.684862@0] EtherCAT DEBUG 0-0: SM3: Addr 0x1180, Size   1, Ctrl 0x20, En 1
[  117.693621@0] EtherCAT DEBUG 0-0: Now in SAFEOP.
[  117.697437@0] EtherCAT DEBUG 0-0: Now in OP. Finished configuration.
[  117.706381@0] EtherCAT 0: Slave states on main device: OP.
[  117.796320@0] EtherCAT DEBUG 0-0: OP -> SAFEOP + ERROR.
[  117.796405@0] EtherCAT ERROR 0-0: AL status message 0x001B: "Sync manager watchdog".
[  117.805614@0] EtherCAT 0-0: Acknowledged state SAFEOP.
[  117.808898@0] EtherCAT DEBUG 0-0: Changing state from SAFEOP to OP.
[  117.815026@0] EtherCAT DEBUG 0-0: Configuring...
[  117.821208@0] EtherCAT DEBUG 0-0: Now in INIT.
[  117.824043@0] EtherCAT DEBUG 0-0: Clearing FMMU configurations...
[  117.830267@0] EtherCAT DEBUG 0-0: Clearing sync manager configurations...
[  117.837011@0] EtherCAT DEBUG 0-0: Clearing DC assignment...
[  117.842521@0] EtherCAT DEBUG 0-0: Configuring mailbox sync managers...
[  117.849016@0] EtherCAT DEBUG 0-0: SM0: Addr 0x1000, Size 128, Ctrl 0x26, En 1
[  117.856088@0] EtherCAT DEBUG 0-0: SM1: Addr 0x1080, Size 128, Ctrl 0x22, En 1
[  117.866060@0] EtherCAT DEBUG 0-0: Now in PREOP.
[  117.867781@0] EtherCAT DEBUG 0-0: SM2: Addr 0x1100, Size   2, Ctrl 0x24, En 1
[  117.874845@0] EtherCAT DEBUG 0-0: SM3: Addr 0x1180, Size   1, Ctrl 0x20, En 1
[  117.883661@0] EtherCAT DEBUG 0-0: Now in SAFEOP.
[  117.887523@0] EtherCAT DEBUG 0-0: Now in OP. Finished configuration.
[  117.986318@0] EtherCAT DEBUG 0-0: OP -> SAFEOP + ERROR.
[  117.986405@0] EtherCAT ERROR 0-0: AL status message 0x001B: "Sync manager watchdog".
[  117.995732@0] EtherCAT 0-0: Acknowledged state SAFEOP.
[  117.998817@0] EtherCAT DEBUG 0-0: Changing state from SAFEOP to OP.
[  118.005009@0] EtherCAT DEBUG 0-0: Configuring...
[  118.011351@0] EtherCAT DEBUG 0-0: Now in INIT.
[  118.014040@0] EtherCAT DEBUG 0-0: Clearing FMMU configurations...
[  118.020238@0] EtherCAT DEBUG 0-0: Clearing sync manager configurations...
[  118.027021@0] EtherCAT DEBUG 0-0: Clearing DC assignment...
[  118.032505@0] EtherCAT DEBUG 0-0: Configuring mailbox sync managers...
[  118.039015@0] EtherCAT DEBUG 0-0: SM0: Addr 0x1000, Size 128, Ctrl 0x26, En 1
[  118.046097@0] EtherCAT DEBUG 0-0: SM1: Addr 0x1080, Size 128, Ctrl 0x22, En 1
[  118.055454@0] EtherCAT DEBUG 0-0: Now in PREOP.
[  118.057785@0] EtherCAT DEBUG 0-0: SM2: Addr 0x1100, Size   2, Ctrl 0x24, En 1
[  118.064856@0] EtherCAT DEBUG 0-0: SM3: Addr 0x1180, Size   1, Ctrl 0x20, En 1
[  118.073516@0] EtherCAT DEBUG 0-0: Now in SAFEOP.
[  118.077913@0] EtherCAT DEBUG 0-0: Now in OP. Finished configuration.
[  118.176300@1] EtherCAT DEBUG 0-0: OP -> SAFEOP + ERROR.
[  118.176400@1] EtherCAT ERROR 0-0: AL status message 0x001B: "Sync manager watchdog".
[  118.184909@1] EtherCAT 0-0: Acknowledged state SAFEOP.
[  118.188769@1] EtherCAT DEBUG 0-0: Changing state from SAFEOP to OP.
[  118.194993@1] EtherCAT DEBUG 0-0: Configuring...
[  118.201552@1] EtherCAT DEBUG 0-0: Now in INIT.
[  118.204025@1] EtherCAT DEBUG 0-0: Clearing FMMU configurations...
[  118.210211@1] EtherCAT DEBUG 0-0: Clearing sync manager configurations...
[  118.216965@1] EtherCAT DEBUG 0-0: Clearing DC assignment...
[  118.222495@1] EtherCAT DEBUG 0-0: Configuring mailbox sync managers...
[  118.228975@1] EtherCAT DEBUG 0-0: SM0: Addr 0x1000, Size 128, Ctrl 0x26, En 1
[  118.236069@1] EtherCAT DEBUG 0-0: SM1: Addr 0x1080, Size 128, Ctrl 0x22, En 1
[  118.244727@1] EtherCAT DEBUG 0-0: Now in PREOP.
[  118.247732@1] EtherCAT DEBUG 0-0: SM2: Addr 0x1100, Size   2, Ctrl 0x24, En 1
[  118.254826@1] EtherCAT DEBUG 0-0: SM3: Addr 0x1180, Size   1, Ctrl 0x20, En 1
[  118.262968@1] EtherCAT DEBUG 0-0: Now in SAFEOP.
[  118.267270@1] EtherCAT DEBUG 0-0: Now in OP. Finished configuration.
[  118.326322@0] EtherCAT DEBUG 0-0: OP -> SAFEOP + ERROR.
[  118.326411@0] EtherCAT ERROR 0-0: AL status message 0x001B: "Sync manager watchdog".