DP83TD510E-EVM: Evaluation board setup

Obinna Ezeilo

Part Number: DP83TD510E-EVM
Other Parts Discussed in Thread: DP83TD510E, USB-2-MDIO

Hi team,

While evaluation the DP83TD510EVM, my customer encountered some problems which led to the following questions.

1. Is it correct that it's not possible to get standard ethernet (IEEE 802.3) out of the RJ45 connector when connecting one EVM to the network and one to a laptop? How would this be possible?

2. Is it correct that the DP83822 PHY on the EVM is not recognized by a laptop when connected through a CAT5 cable in the RJ45 connector? I would think it should show up in device manager.

3. For what is the functionality on the EVM used to configure the DP83822 as MASTER and DP83TD510E as SLAVE as stated in the DP83TD510EVM User Guide (Rev. A)?

4. Does something else need to be configured besides the scripts from the DP83TD510E Cable Diagnostics Toolkit when using the TDR function on the DP83TD510E PHY? Because register 0x001E keeps the HEXvalue 4000 and 0x030C becomes 0000. How can I get this to work?

5. Why is it not possible to start the PRBS function using the USB-2-MDIO Tool? Also with the extended register option enabled it doesn't work. This is the error message I get:

In the setup I've selected PHY ID 00 in the software, the EVM is powered by an external power supply with 5 VDC and the connection is verified present with the SQI register.

Thanks and looking forward to your response.

Regards,

Obinna.

over 4 years ago

0 Kallikuppa Sreenivasa over 4 years ago

TI__Guru**** 191239 points

Hello Obinna,

Thanks for the query.

I will look into the queries.

In the meantime, can you request customer to look into the below thread

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/967306/dp83td510e-evm-msp430_fet_drivers-are-not-installing/3574860?focus=true

and confirm they have made the required changes and also seeing the clock at the input of DP83822.

Regards,

Sreenivasa

0 Kallikuppa Sreenivasa over 4 years ago in reply to Kallikuppa Sreenivasa

TI__Guru**** 191239 points

Hello Obinna,

Did you get some inputs from the customer?

Can you please ask customer to download the latest cable diagnostics document from TI.com.

Regards,

Sreenivasa

0 Obinna Ezeilo over 4 years ago in reply to Kallikuppa Sreenivasa

TI__Intellectual 2385 points

Hi Sreenivasa,

Please see below response:

The proposed thread isn't applicable, because I'm using an external 5V power supply and can communicate with the two evaluation modules I have through the software. Changing resistor R24 is only necessary if you're not able to communicate to the evaluation module. I have one evaluation module configured with the DP83TD510E as master and one evaluation module with the DP83TD510E as slave (with bootstrap options as explained in the user's guide). I discovered that there is on both boards no clk signal at the DP83822 PHY. And the evaluation module with the DP83TD510E as slave, has also no clk at the DP83TD510E PHY because of that.

How can this issue with the clk be resolved?

Thanks, Obinna.

0 Kallikuppa Sreenivasa over 4 years ago in reply to Obinna Ezeilo

TI__Guru**** 191239 points

Hello Obinna,

As a general recommendation we suggest to change R24 to 0R.

Please refer to the document and the links below

510E_Debug.docx

https://e2e.ti.com/support/interface/f/interface-forum/990045/dp83td510e-evm-usb-2-mdio-tool-detects-all-phy-ids-and-returns-ffff/3657938#3657938

Also, to interface to the device using MDIO, please refer to section 4 Software of EVM use guide.

https://www.ti.com/lit/ug/snlu271a/snlu271a.pdf

Regards,

Sreenivasa

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DP83TD510E-EVM: Evaluation board setup