2305166_en-US

Can gPTP run with GMAC0 instead of PFE_MAC on S32G3?

Hi,

I have found an example application for gPTP but it uses PFE instead of GMAC. Later on I want to integrate PTP with LWIP based application which uses GMAC0. So I will need to either move LWIP to use PFE or gPTP to use GMAC0. I want to understand if gPTP with GMAC is already available to work out of box for S32G399, and if not what is the effort and success chance to port gPTP to GMAC for S32G399?

Rizwan

Re: Can gPTP run with GMAC0 instead of PFE_MAC on S32G3?

Hi,rizwan_at_disruptdotcom

Thank you for contacting us.

You can refer to the PFE_DRV_MCAL_S32G_RTM_1_6_0_D2505 for the LWIP PFE using. Customer can access the timestamping on the GMAC, but does not supply gPTP stacks reference to customer.

Joey

Re: Can gPTP run with GMAC0 instead of PFE_MAC on S32G3?

Hello @Joey_z

do you mean its possible to run gPTP on GMAC, but a reference port is not available for it from NXP?

Best regards,
Rizwan

Re: Can gPTP run with GMAC0 instead of PFE_MAC on S32G3?

hi，rizwan_at_disruptdotcom

The gPTP receives the ingress timestamp through the PFE SW driver and sends the egress timestamp. The gPtP package provided are for the PFE scenario. We did not provide relevant content or information to apply gPTP to GMAC.

Joey