AM2434: Can EtherCAT Salve work in Giga mode?

Tony Tang

Mastermind 28922 points

Part Number: AM2434
Other Parts Discussed in Thread: DP83869, , AM6442

Can EtherCAT slave work in giga mode ?

If yes, the AM243x LP has a giga phy dp83869, how can we verify it on the board?

over 1 year ago

0 Aaron Thomas over 1 year ago

TI__Expert 8945 points

Hi Tony,

Currently, EtherCAT does not support Giga mode. Only regular EtherCAT 100M protocol is supported.

Regards,

Aaron

0 Tony Tang over 1 year ago in reply to Aaron Thomas

TI__Mastermind 28922 points

Aaron,

Do you mean currently TI doesn't support EtherCAT-G? or the EtherCAT doesn't support EtherCAT-G?

What is needed to support EtherCAT-G except the Giga Ethernet interface?

0 Aaron Thomas over 1 year ago in reply to Tony Tang

TI__Expert 8945 points

Tony,

Sorry for the confusion. Currently TI doesn't support EtherCAT-G. EtherCAT protocol does support EtherCAT-G.

In order to support EtherCAT-G on TI devices, PRU-ICSS firmware update and software changes is critical along with Giga Ethernet interface.

Regards,

Aaron

0 Liu Zhigang over 1 year ago in reply to Aaron Thomas

Prodigy 60 points

Hi Aaron,

So you mean AM2434 can support EtherCAT-G by update PRU-ICSS firmware? Do you have a plan to modify such a demo?

+1 PratheeshGangadhar over 1 year ago in reply to Liu Zhigang

TI__Mastermind 47531 points

EtherCAT G specs are not available yet from ETG. Once its ready, will look into the plan.

0 Liu Zhigang over 1 year ago in reply to PratheeshGangadhar

Prodigy 60 points

Hi PratheeshGangadhar,

But I found a topic that said AM6442 can support EtherCAT Giga bits in hardware and only need to update software firmware. Could you check and confirm it?

e2e.ti.com/.../am6442-when-will-ethercat-g-gigabit-be-supported-on-sitara-processors

0 PratheeshGangadhar over 1 year ago in reply to Liu Zhigang

TI__Mastermind 47531 points

Liu Zhigang said:
only need to update software firmware.

Yes, hardware is capable, won't undermine the effort to do the firmware especially when specs are not frozen.

0 Jim Mrowca over 1 year ago in reply to Liu Zhigang

Genius 4132 points

Liu: Pratheesh is correct. Beckhoff through/with the ETG must release EtherCAT G spec before silicon (or device drivers) are produced by TI to formally support the spec.

More than likely you will need to go to a 3rd party to access EtherCAT G Master IP; whereas silicon suppliers will rely on a Beckhoff produced shared library object for EtherCAT G Slave IP implementations.

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AM2434: Can EtherCAT Salve work in Giga mode?