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Visitor kvsarmaj
Visitor
856 Views
Registered: ‎12-25-2017

Relationship between MDAs in RTL and routing

Does use of mutli dimensional arrays in RTL result in routing issues?

I am using Vivado 2017.3. I have a lot of MDAs in my top level and route fails because of congestion.

Would it help to avoid MDAs in design entirely?

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4 Replies
Moderator
Moderator
851 Views
Registered: ‎01-16-2013

Re: Relationship between MDAs in RTL and routing

@kvsarmaj,

 

Check the following answer record to analyze and overcome the congestion:

https://www.xilinx.com/support/answers/66314.html

 

--Syed

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Visitor kvsarmaj
Visitor
848 Views
Registered: ‎12-25-2017

Re: Relationship between MDAs in RTL and routing

@syedz

 

I went through this AR before raising the topic here.

We are looking at all the reasons.

 

One topic we wanted to understand is if Vivado tool interprets MDAs in any specific way.

Any insight into this?

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Moderator
Moderator
838 Views
Registered: ‎01-16-2013

Re: Relationship between MDAs in RTL and routing

@kvsarmaj,

 

I am not aware if tools interprets MDAs in different way. 

Are they connected to ports? What is the congestion window? Did you try using congestion related strategies?

 

--Syed

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Visitor kvsarmaj
Visitor
833 Views
Registered: ‎12-25-2017

Re: Relationship between MDAs in RTL and routing

@syedz

 

We are trying congestion strategies. We will need some time to figure this out.

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