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Tool/software:
<converting from email>
I am trying to use the TLK10232 to convert 10KR to SFP. I based my design around some forum posts which indicated that you should be able to connect the High Speed Side A to High Speed Side B by way of an internal switch. I have 2 eval boards connected together and I am using the GUI to try to configure the parts.
This is my current eval board setup:
The goal is to be able to ping from one laptop to another. If I remove the eval boards and just use the fiber, I can ping. Adding the eval boards back in, I am unable to ping.
So far, I can get a link light between the switch and the eval board (on the SFP side) but I cannot get data across the 10KR (coax side).
If I can get this working, I can avoid respinning my actual design.
Hi Ari,
Are you configuring each eval board using the GUI or with direct register reads/writes? Can you share your configuration sequence for both boards so I can review?
Best,
Lucas
Each eval board is configured via the GUI. From other forum posts, it looks like i am supposed to configure the SFP for no link training and no autonegotiation. The 10KR side should have link training and autonegotiation.
Here are my settings
Channel A- SFP
Channel B- 10KR
Hi Ari,
Thank you for sharing your configuration. I reviewed and don't see any clear issues with the settings you are using.
My recommendation is to start with a simpler setup. Can you try disabling AN and LT on the 10G-KR link? It would be good to see if you can get the link up in this condition.
Additionally, I saw you asked another E2E question about using DS110DF111 for 10G-KR to SFP. If you can disable AN and LT on the 10G-KR side in your system implementation, then DS110DF111 is a much simpler device to get working in this use case.
Best,
Lucas