DP83869EVM: Ethernet Compliance Test Mode 4 Issue

Hi Daniel,

What are you writing to register 0x25 for this test? Bits 7-5 will be the point of interest. 

Thanks,

David

I am writing 0x0460 to register 0x0025. So bits 7-5 are 011 and I am able to confirm this by reading the register back. I am using the USB-2-MDIO app provided by TI. This is based off of the appendix in the document SNLA239B which calls out the following register writes:

001F 8000
0000 0140
0010 5008
0009 9B00
0025 0460

I have successfully followed this same process for the other 3 channels by just altering the final write to register 0x0025.  

Thank you,

Daniel 

Hi Daniel, 

And if you set bit 7 of register 0x0025 to 1, are you seeing output on channels A, B, C, but not D?

Thanks,

David

Yes, when I set bit 7 of register 0x0025 to 1 I see output on channels A, B, C, but not D. 

-Daniel 

Hi Daniel,

I was not able to replicate your issue on our EVM. Please check your connections for channel D.

Thanks,

David