DP83822I: Ethernet ping doesn't happen in first go and need power recycle

Karthikbabu PS

Part Number: DP83822I

Dear Team

I have the circuit based on DP83822I where some pcb boards able to ping in first go and some pcb boards needs multiple power recycle to ping it

This issue is happening in random and sometime takes more time to ping

over 3 years ago

0 Gokul Koraganji over 3 years ago

TI__Mastermind 19250 points

Hi Karthikbabu,

Can you please let me know if 1.8V VDDA level or 3.3V VDDA level is being used for your application?

During the cycles ping is not working, can you please check if you are able to access registers? Reading register 0x1 should give us an idea whether it is working or not.

--
Regards,
Gokul.

0 Karthikbabu PS over 3 years ago in reply to Gokul Koraganji

Prodigy 20 points

Dear Gokul,

We are using the 3.3V VDDA and i had attached the waveform capture related to 3V3/RESET/MDC/MDIO

Ethernetissue_e2e.docx

0 Gokul Koraganji over 3 years ago in reply to Karthikbabu PS

TI__Mastermind 19250 points

Hi Karthik,

Can you please capture the registers 0x0000, 0x0001 (please read this register twice), 0x0010, 0x0421, 0x0467, 0x468 in both cases (when you are able to ping and when you are not able to)?

--
Regards,
Gokul.

0 Gokul Koraganji over 3 years ago in reply to Gokul Koraganji

TI__Mastermind 19250 points

Hi Karthik,

Were you able to look into this request?

--
Regards,
Gokul.

0 Gokul Koraganji over 3 years ago in reply to Gokul Koraganji

TI__Mastermind 19250 points

Hi Karthik,

Do you still see the issue?

--
Regards,
Gokul.

0 Karthikbabu PS over 3 years ago in reply to Gokul Koraganji

Prodigy 20 points

Hi Gokul, We are looking into issue and we will keep you update

0 Gokul Koraganji over 3 years ago in reply to Karthikbabu PS

TI__Mastermind 19250 points

Hi Karthik,

Thanks for the update. Please keep Prahlad and me in loop.

--
Regards,
Gokul.

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DP83822I: Ethernet ping doesn't happen in first go and need power recycle