[etherlab-dev] "Master still waiting for devices!" problem.

周甫霖 erixchou at mapacode.tw
Wed Jan 18 09:26:42 CET 2017


Hi all,

First appreciate the implement of etherlabmaster.
I'm devolping a non-native supported ethernet device to be able to work as
a RTDM EtherCAT master.
What the device is one part of TI AM335x SoC and is named "cpsw".
Everything smoothly while adapting driver code, building module file, and
installing.
But I was stuck by a problem when I try to start EtherCAT master.
Following is my steps and message shown by dmesg:

# /etc/init.d/ethercat start
Starting EtherCAT master 1.5.2  done

[   30.849754] EtherCAT: Requesting master 0...
[   30.854265] EtherCAT ERROR 0: Master still waiting for devices!

More information:

# /opt/etherlab/bin/ethercat master
Master0
  Phase: Waiting for device(s)...
  Active: no
  Slaves: 0
  Ethernet devices:
    Main: a0:f6:fd:22:bd:ed (waiting...)
      Link: DOWN
      Tx frames:   0
      Tx bytes:    0
      Rx frames:   0
      Rx bytes:    0
      Tx errors:   0
      Tx frame rate [1/s]:      0      0      0
      Tx rate [KByte/s]:      0.0    0.0    0.0
      Rx frame rate [1/s]:      0      0      0
      Rx rate [KByte/s]:      0.0    0.0    0.0
    Common:
      Tx frames:   0
      Tx bytes:    0
      Rx frames:   0
      Rx bytes:    0
      Lost frames: 0
      Tx frame rate [1/s]:      0      0      0
      Tx rate [KByte/s]:      0.0    0.0    0.0
      Rx frame rate [1/s]: -509579 -509608 -335544
      Rx rate [KByte/s]:   845836.0 -469824.0 163840.0
      Loss rate [1/s]:          0      0      0
      Frame loss [%]:         0.0    0.0    0.0
  Distributed clocks:
    Reference clock: None
    Application time: 0
                      2000-01-01 00:00:00.000000000



Could anyone kindly advice what is the key point to go forword form
"waiting device"?

Best regards - Erix Chou
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