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Contributor
Contributor
484 Views
Registered: ‎05-10-2019

How to SWAP MIPI P AND N for a data lane, C_DL_IO_SWAP parameter

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Hi,

We have an issue on our board where P and N lanes are swapped. I was wondering how can i swap P and N lanes for MIPI IP. I see following properties for MIPI RX subsystem IP.

C_DL1_IO_SWAP.

Let me know if anyone has successfully implemented IO SWAP using this parameter

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Contributor
Contributor
104 Views
Registered: ‎05-10-2019

Re: How to SWAP MIPI P AND N for a data lane, C_DL_IO_SWAP parameter

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Final Status is that I was able to resolve this issue by doing an ECO.

View solution in original post

5 Replies
Xilinx Employee
Xilinx Employee
453 Views
Registered: ‎07-16-2019

Re: How to SWAP MIPI P AND N for a data lane, C_DL_IO_SWAP parameter

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Hi,

Unfortunately, XILINX MIPI D-PHY IP does not support P/N swap.

Here is a similar question and answer on another forum thread where another solution is possible: https://forums.xilinx.com/t5/Video/Swap-polarity-MIPI-D-Phy-HS-LVDS-input/td-p/1021113

I hope this helps!

Ebrahim

Contributor
Contributor
354 Views
Registered: ‎05-10-2019

Re: How to SWAP MIPI P AND N for a data lane, C_DL_IO_SWAP parameter

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Hi Ebrahim,

When C_DL_IO_SWAP parameter is True for lane 1 and lane2. The implemented netlist shows the N and P are swapped for Data lane 1 and Data lane 2. Please see snapshot attached.

Could you please check with the MIPI CSI2 RX IP team to see if there is any option to SWAP the P and N for a data lane.

Best Regards

Implementation_netlist.png
Implemented_netlist_view_Swap_DLane1_2.png
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Moderator
Moderator
289 Views
Registered: ‎11-09-2015

Re: How to SWAP MIPI P AND N for a data lane, C_DL_IO_SWAP parameter

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Hi @bhanu27 

As per the topic refered by @ebrahimm 

C_DL**_IO_SWAP is a hidden parameter for internal debug. Please ignore.

This is not supported


Florent
Product Application Engineer - Xilinx Technical Support EMEA
**~ Don't forget to reply, give kudos, and accept as solution.~**
Xilinx Employee
Xilinx Employee
115 Views
Registered: ‎03-30-2016

Re: How to SWAP MIPI P AND N for a data lane, C_DL_IO_SWAP parameter

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Hello @bhanu27

If your question is answered. Could you please kindly mark this post as solved ?
So other forum users can learn from your experience.

Thanks & regards
Leo

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Contributor
Contributor
105 Views
Registered: ‎05-10-2019

Re: How to SWAP MIPI P AND N for a data lane, C_DL_IO_SWAP parameter

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Final Status is that I was able to resolve this issue by doing an ECO.

View solution in original post