Method and apparatus for transaction recording and visualization
View Patent ↗Methods and apparatus for recording and visualizing transactions of a test bench simulation are disclosed. Transaction-specific data generated from a test bench simulation may be displayed in a sequence diagram view to provide a view of the transactions arranged sequentially in time.
1. A method, comprising:
receiving, at one or more computer systems, information generated in response to a simulation of a device under test with a test bench, the information comprising transactions and transaction passing and temporal relationships between multiple test bench components;
generating, with one or more processors associated with the one or more computer systems, a transaction database as a response to the received information; and
generating and displaying, with the one or more processors associated with the one or more computer systems, an element of a sequence diagram that visually represents both a temporal sequence between two or more data elements of a transaction between at least two test bench components and a transaction passing sequence between each of the two or more data elements according to the transaction database; wherein a transaction represented by an element in the sequence diagram is selected from data passed between two sequencers and data passed between a sequencer and a driver.
2. The method of claim 1 wherein each database transaction comprises a name of the transaction, a start time of the transaction, and an end time of the transaction.
3. The method of claim 1 wherein each database transaction comprises an interface data on which the transaction occurs.
4. The method of claim 1 wherein each database transaction comprises a name of a variable associated with the transaction, and a value for the variable at a selected time.
5. The method of claim 3 wherein the interface comprises a test bench component imitating a request and a test bench component returning a response to the request.
6. The method of claim 1 further comprising generating a waveform view of the simulation using the transaction database.
7. The method of claim 6 further comprising identifying a portion of the waveform corresponding to the time of a transaction represented by an element in the sequence diagram.
8. The method of claim 1 further comprising enabling tracing of a transaction represented by the element of the sequence diagram either forward or backward in time.
9. The method of claim 1 wherein the at least two test bench components are selected from the sequencer and the driver.
10. The method of claim 1 further comprising visually expanding a transaction represented by the element of the sequence diagram into one or more lower-level transactions.
11. The method of claim 1 further comprising collapsing one or more transactions represented by the element of the sequence diagram into a higher-level transaction.
12. The method of claim 1 further comprising displaying attributes of a transaction represented by the sequence diagram.
13. The method of claim 1 further comprising:
receiving source code for the simulation;
generating a source code database;
generating a source code view of the simulation from the source code database;
generating a synchronized source code view based on synchronizing the source code view of the simulation with the sequence diagram; and
and generating information configured to display the synchronized source code view.
14. The method of claim 1 further comprising:
generating a waveform view of the simulation from the transaction database;
generating a synchronized waveform view based on synchronizing the waveform view of the simulation with the sequence diagram; and
generating information configured to display the synchronized waveform view of the simulation.