i.MX ProcessorsのトピックRe: i.MX8MP TSN implementation details

i.MX8MP TSN implementation details

matteo_silotto — Thu, 29 Apr 2021 09:42:43 GMT

Hi support team,

on i.MX8MPlus only one ethernet port supports TSN (ENET2_TSN).

In the EVK reference design, you do not use a PHY with a hardware timestamp nor other additional signals (eg. Start-of-frame detect) from the PHY to the MAC.

So, could you confirm that the TSN implementation on i.MX8MPlus is a pure software or MAC level implementation? And does it not require a specific PHY?

Thanks.

Re: i.MX8MP TSN implementation details

Yuri — Fri, 30 Apr 2021 09:39:43 GMT

@matteo_silotto
Hello,

Customers can refer to the following demo:

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/AVB-TSN-demo-on-i-MX8MP/ta-p/1123791

Regards,
Yuri.

Re: i.MX8MP TSN implementation details

matteo_silotto — Fri, 07 May 2021 07:13:46 GMT

Hi Yuri,

thanks for the link. I've analyzed it and it explains the software setup for the AVB/TSN demo.

I'm talking about the hardware requirement of the TSN ethernet interface. On the EVK reference schematic there is no hardware difference between EHT1 and ETH2, but only ETH2 supports the TSN.

Could you confirm that the TSN functionality has no dependence on the ethernet PHY used?

Best regards,

Matteo Silotto

Re: i.MX8MP TSN implementation details

matteo_silotto — Fri, 07 May 2021 07:12:49 GMT

Hi Yuri,

thanks for the link. I've analyzed it and it explains the software setup for the AVB/TSN demo.

I'm talking about the hardware requirement of the TSN ethernet interface. On the EVK reference schematic there is no hardware difference between EHT1 and ETH2, but only ETH2 supports the TSN.

Could you confirm that the TSN functionality has no dependence on the ethernet PHY used?

Best regards,

Matteo Silotto

Re: i.MX8MP TSN implementation details

Yuri — Fri, 14 May 2021 07:43:41 GMT

@matteo_silotto
Hello,

yes, " the TSN functionality has no dependence on the ethernet PHY used".

Regards,
Yuri.