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David replied to the topic Writing a Test Plan, Identifying Transactions, and Documenting BFMs/MIT in the forum OSVVM 2 years ago

Hello Jim, I just wanted to say thank you for a detailed reply!
I’m churning my way through the concepts and I’m sure that I’ll be back to ask more questions, thanks again for your help!
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Simon wrote a new post 2 years, 1 month ago

Using Multiple Transaction Nodes in OSVVM Co-simulation Introduction The OSVVM co-simulation environment has the ability to generate transactions from C++ to drive various virtual components (VCs), such as AxiBus, […]
Jim Lewis wrote a new post 2 years, 1 month ago

OSVVM 2023.05 Release Summary of 2023.05 Changes Co-simulation updates Added split transaction methods for address bus model independent manager Added […]
Brad Adam replied to the topic Configuring the AXI-Lite WSTRB in the forum OSVVM 2 years, 1 month ago

I appreciate the insight, Jim. Was approaching this from the wrong angle.
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Jim Lewis replied to the topic Writing a Test Plan, Identifying Transactions, and Documenting BFMs/MIT in the forum OSVVM 2 years, 1 month ago

Hopefully this gets the topic started. Hopefully others will comment too. It is a long topic and I probably missed some things. I may have an entirely different perspective than others.
Jim Lewis replied to the topic Writing a Test Plan, Identifying Transactions, and Documenting BFMs/MIT in the forum OSVVM 2 years, 1 month ago

Documenting a Verification Component needs to address
What does the VC need to do
How do I use the VC
What transactions does the VC support

I note that the Axi4_VC_users_guide in OsvvmLibraries/Documentation primarily addresses the last two. Rather than addressing the first one, it assumes that is must support all operations on the AXI4…[Read more]

Jim Lewis replied to the topic Writing a Test Plan, Identifying Transactions, and Documenting BFMs/MIT in the forum OSVVM 2 years, 1 month ago

Why Randomize
Our goal is to thoroughly test a design. For some designs, directed testing will get the job done.

For some designs, there are too many variations to be able to test every variation in the system. Variations can be a multiplying factor in testing a design. If the design can limit the variations in the system, the system can…[Read more]

Jim Lewis replied to the topic Writing a Test Plan, Identifying Transactions, and Documenting BFMs/MIT in the forum OSVVM 2 years, 1 month ago

Implementing Transactions
The behavior of a transaction can either be implemented in a verification component (VC) or in the subprogram body (as SendCmd above suggests). Note the acronym BFM means bus functional model and can refer to either a VC or subprogram body. BFM means the model implements only the interface behavior and not internal…[Read more]