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Original question:

DP83TC811EVM: DP83TC811

DP83TC811EVM: DP83TC811EVM with TMS570LC4357

Abhi
Prodigy 80 points
Part Number: DP83TC811EVM
Other Parts Discussed in Thread: TMS570LC4357, , DP83TC811

Tool/software:

Hi David,

Sorry for the late reply, I was waiting for the logic analyser.

Finally I captured PHY MDIO and MDC data, its around 10mb. Can you please let me know how to share this with you.

Also in the code, this statement is always false. MDIO_USERACCESS0_ACK is never set to True with the new PHY as shown in the reg below.

if(((HWREG(baseAddr + MDIO_USERACCESS0)) & MDIO_USERACCESS0_ACK) == MDIO_USERACCESS0_ACK)

Regards,

Abhi

  • 0
    TI__Genius 14006 points

    Hi Abhi,

    I have a few clarifying questions so I can understand your issue:

    • You mention the TMS570LC4357 in your title, are you using the MDIO/MDC/GND pins from this board to connect to the MDC/MDIO/GND pins on the DP83TC811EVM?
    • Are there multiple Ethernet PHYs attached to the MDC/MDIO signals?
    • What VDDIO level is MDIO being pulled to on either board?
    • Is the DP83TC811 PHY liniking up? (you can check the status of the LEDs next to the LED0 label on board after connecting the DP83TC811EVM to another link partner through the blue connector in oppostie master/slave configuration)?
    • Is the DP83TC811 outputting a signal on the CLKOUT pin?

    Best regards,

    Melissa