TMS320F28388D: Ethernet Daisy chain with single mac

Ted Huh

Part Number: TMS320F28388D

Tool/software:

Hi Champs,

My customer wants to build the ethernet daisy chain with F28388D. with one MAC on F28388D and 2 Ethernet port (switching port) they want to do this.

Do we have reference design or guide to this?

Regards,

Ted

8 months ago

0 Ted Huh 8 months ago

TI__Expert 3025 points

It seems like we can use KSZ8794(Microchip) for hardware. Do we have firmware solution to support single MAC, external ethernet switch solution for daisy chain?

Regards,

Ted

0 Ted Huh 7 months ago in reply to Ted Huh

TI__Expert 3025 points

Hi Team,

Can anybody check this?

If it's impossible then I will recommend the customer AM26x.

Regards,

Ted

0 Ted Huh 7 months ago in reply to Ted Huh

TI__Expert 3025 points

Hi Team,

If we don't have a plan for this, please confirm it.

Regards,

Ted

+1 PRADEEP HN 7 months ago in reply to Ted Huh

TI__Intellectual 1711 points

Hi Ted Huh,
We don't have a reference design for this on F2838x. However, it should be an easy configuration to setup.

Both KSZ8794CNX and F2838x EMAC supports RMII. Configuring both in RMII with MAC to MAC topology.
It is better to get the customer schematics and board files has to be reviewed by TI HW APPs, before board manufacturing.

About AM26x- It has on-chip (integrated) two port MAC switch with gigabit supported speed. PHY is not integrated in switch, which would be a separate part to be added. If customer is interested, please refer to this and this.

With regards,
Pradeep

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TMS320F28388D: Ethernet Daisy chain with single mac