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arod412
Beginner
754 Views

Quartus v18.0.1 Avalon Verification IP Suite Update?

Hi Guys,

 

I was looking into the Avalon Verification IP Suite to test Avalon custom components found here:

 

https://www.intel.com/content/www/us/en/programmable/documentation/nik1412471932581.html

 

It has not been updated since Quartus v16.1. When opening the example in v18.0.1, the IP that involves the clock and reset is now different. The listed IP in v18.0.1 has two separate modules called Clock Source BFM and Reset Source BFM but they do not have inputs, only outputs.

 

Has the methods changed? Should I be looking at some other documentation?

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4 Replies
sstrell
Moderator
20 Views

The Avalon BFMs have not changed. That's why the document hasn't been updated. The clock and reset BFMs are source BFMs. They generate clock and reset to drive the clock and reset sink (inputs) to your component or system under test.

arod412
Beginner
20 Views

I guess I am not following properly. See attached screenshot. This is from Intel's reference design for the Verification IP Suite. The top IP that contains the clk/rst is what's missing from the current IP list. I thought this was the Clock Source BFM and Reset Source BFM but updated and split into two separate IP.

 

Thinking about it now, I'm assuming I can just replace this with a Clock Bridge and Reset Bridge to replicate it? And my other question would be what is the purpose of the clock and reset BFMs then when it is not being driven by the test bench? This is very new to me so I am trying to piece this together and understand it.

sstrell
Moderator
20 Views

Yes, the clock source component is for synthesis. The BFMs are for simulation.

 

There is no other use for the BFMs. You use them to create a special testbench system specifically for simulation. To save time, you can generate this testbench system automatically from the Generate menu (Generate Testbench I think). If you choose the simple option, it replaces clocks and resets with clock and reset BFMs for control in your testbench program. If you choose the other option (forget what it's called right now), it will generate a testbench system with the appropriate BFMs attached to any exported interfaces in your system. See this online training for details:

 

https://www.intel.com/content/www/us/en/programmable/support/training/course/oaqsyssim.html

arod412
Beginner
20 Views

I'm following now. I was also not thinking clearly about how it works in relation to testbenches and realized I forgot some details. I will definitely check out the training course. Thank you so much!