Hardware timestamping point for IEEE 1588 on AM335x MAC support

Satoshi TOMINAGA

Hi all,

I want to know the exact hardware timestamping point of IEEE 1588 packets.

14.3.2.2 IEEE 1588v2 Clock Synchronization Support

seems does not describe the detail of the point.

For example, I found Intel description of the hardware timestamping point in the

Figure 4. Timestamp Reference Point

So, I want to know the similar description of AM335x hardware timestamping support.

I also want to know that it is the same for both transmit / receive direction.

Regards,

TOMINAGA Satoshi

0 Biser Gatchev-XID over 9 years ago

Hi,

I will forward this to the Ethernet experts.

0 Satoshi TOMINAGA over 9 years ago in reply to Biser Gatchev-XID

Hi Biser,

Are there any technical information on this issue ?

Regards,
TOMINAGA Satoshi

0 Biser Gatchev-XID over 9 years ago in reply to Satoshi TOMINAGA

I have asked the factory team for comments. They will post directly here when feedback is available.

0 -DK- over 9 years ago in reply to Biser Gatchev-XID

AM335x MAC performs the time-stamping at the Ethernet Start-of-Frame delimiter (SFD). This applies to both ingress and egress packets.

0 Satoshi TOMINAGA over 9 years ago in reply to -DK-

Hi -DK-,

Thank you for your information.

Regards,
TOMINAGA Satoshi

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