DP83867E: Ethernet compliance testing

Hi Jaski,

May I ask which spec you are failing during compliance test? Did you program Test mode 1 to Test mode 4 according to the app note shown below?

https://www.ti.com/lit/an/snla239b/snla239b.pdf?ts=1687363233638&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FDP83867E

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Thank you,

Hillman Lin

Hi Lin

The failing tests are described here: 

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1238491/sk-am62-1000base-t-compliance-tests-failed/4686053

Yes, we have programmed the Test mode 1 to Test mode 4. 

Best regards, 

Jaski

Hi Jaski,

I would like to double check rather you program the following register during your compliance test?

Did you use extended register method while you are programing this register?

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Thank you,

Hillman Lin

Hi Lin

Yes, we used the extended register method. This is the code we used. 

mdio_extd_dp838x_write(skfd, 0x1D5, 0xF508);

static void mdio_extd_dp838x_write(int skfd, int location, int value)
{
	// write value to desired register
	int reg_regcr_h=0x0D;
	int reg_addar_h=0x0E;
	
	// 1. write 0x001F (address function field = 00, DEVAD = 31) to register REGCR
	mdio_write(skfd, reg_regcr_h, 0x001F);
	// 2. write desired register address to register ADDAR
	mdio_write(skfd, reg_addar_h, location);
	// 3. write  0x401F (data, no post increment function field = 01, DEVAD = 31) to register REGCR
	mdio_write(skfd, reg_regcr_h, 0x401F);
	// 4. write  content of the desired extended register set register to register ADDAR.
	mdio_write(skfd, reg_addar_h, value);

}

Best regards,

Jaski

Hi Jaski,

Are you able to send us the schematic and layout on the MDI side of the PHY for further debut?

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Thank you,

Hillman Lin

Hi Lin

I will send you the schematic but not the layout, since this is secret. Can you tell me how can I sent the schematic securely to you?

Thanks and best regards, 

Jaski

Hi Singh,

Sure, I will add you as friend in E2E. We can talk over email you accept the friend request.

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Regards,

Hillman Lin