[etherlab-users] packets timed out

[Jürgen Kunz]

Hello Raz!

Please check, if the "processor" module is loaded, as this sends the CPU to
sleep mode, which causes problems.
lsmod | grep processor
If this is the case, add the "processor" module to the modprobe blacklist,
as this avoids loading the module on startup. If ACPI or APM services are
loaded, you should disable them. 

Regards,
Jürgen

--
Dipl.-Inform. Jürgen Kunz

Technische Universität Darmstadt
FG Simulation, Systemoptimierung und Robotik
Hochschulstr. 10
64289 Darmstadt

Tel.:   ++49 (0) 6151-16-70383
Fax:    ++49 (0) 6151-16-6648
E-Mail: kunz(at)sim.tu-darmstadt.de
Homepage: http://www.sim.tu-darmstadt.de


> -----Ursprüngliche Nachricht-----
> Von: etherlab-users-bounces at etherlab.org [mailto:etherlab-users-
> bounces at etherlab.org] Im Auftrag von Raz Ben Yehuda
> Gesendet: Dienstag, 19. Juni 2012 10:11
> An: etherlab-users at etherlab.org
> Betreff: [etherlab-users] packets timed out
> 
> Hello
> 
> I loaded etherlab on 3.2.0 preempt rt kernel. I connected point to point a
> slave to my controller.
> 
> $ ethercat master
> Master0
>  Phase: Idle
>  Active: no
>  Slaves: 1
>  Ethernet devices:
>    Main: 00:50:c2:5d:0f:5e (attached)
>      Link: UP
>      Tx frames:   383558
>      Rx frames:   383557
>      Lost frames: 0
>      Tx bytes:    23041152
>      Tx errors:   0
>      Tx frame rate [1/s]:    667    667    667
>      Tx rate [KByte/s]:     39.1   39.1   39.1
>      Loss rate [1/s]:          0      0      0
>      Frame loss [%]:         0.0    0.0    0.0
> 
>    Backup: None.
>  Distributed clocks:
>    Reference clock: Slave 0
>    Application time: 0
>                      2000-01-01 00:00:00.000000000
> 
> the eth0 is 100mbps e100, but i have not patched yet but used the generic
> driver.
> when i issue the upload command:
> 
> $ ethercat upload -t int8 -p 0 0x2003 0x01
> 
> I sometime get a reply "Data type mismatch. Expected int8 with 1 byte, but
> got 0 byte."
> 
> dmesg shows me that i have packets timed out.
> 
>  384.559608] EtherCAT WARNING 0: 87 datagrams TIMED OUT!
> [  384.559612] EtherCAT WARNING 0: 87 datagrams UNMATCHED!
> [  384.559662] EtherCAT ERROR 0-0: Reception of CoE upload response
> failed: No response.
> [  384.559667] EtherCAT ERROR 0-0: Failed to process SDO request.
> [  385.473636] EtherCAT ERROR 0-0: Reception of CoE upload response
> failed: No response.
> [  385.473642] EtherCAT ERROR 0-0: Failed to process SDO request.
> [  388.838516] EtherCAT WARNING 0: 4 datagrams TIMED OUT!
> [  388.838520] EtherCAT WARNING 0: 4 datagrams UNMATCHED!
> [  388.838572] EtherCAT ERROR 0-0: Reception of CoE upload response
> failed: No response.
> [  388.838576] EtherCAT ERROR 0-0: Failed to process SDO request.
> [  389.988491] EtherCAT WARNING 0: 2 datagrams TIMED OUT!
> [  389.988496] EtherCAT WARNING 0: 2 datagrams UNMATCHED!
> [  389.988546] EtherCAT ERROR 0-0: Reception of CoE upload response
> failed: No response.
> [  389.988550] EtherCAT ERROR 0-0: Failed to process SDO request.
> 
> 
> Where the problem is ? the slave or the master ?
> 
> thank you
> raz
> --
> 
> http://raziebe.wix.com/ironspeedlinux#!Home/mainPage
> 
> 
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