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Brad Adam replied to the topic Simulating Backpressure with the AXIS VC in the forum OSVVM 2 years, 2 months ago
Thank you for the detailed response, Jim.
I misunderstood the correct way to use RECEIVE_READY_BEFORE_VALID and RECEIVE_READY_DELAY_CYCLES but this makes a lot of sense.
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Jim Lewis replied to the topic Simulating Backpressure with the AXIS VC in the forum OSVVM 2 years, 2 months ago
Hi Adam,
Currently the features that control these is described on pages 26 and 27 of the AxiStream_user_guide.pdf in OsvvmLibraries/Documentation. There are two controls for this:
RECEIVE_READY_BEFORE_VALID – this is true by default and allows TReady to be generated even if TValid is not asserted.
RECEIVE_READY_DELAY_CYCLES – Number of…[Read more] -
Brad Adam started the topic Simulating Backpressure with the AXIS VC in the forum OSVVM 2 years, 2 months ago
Hello,
I’ve been using OSVVM for several months with great success but I’ve run into a problem with simulating backpressure. At a high level my test bench looks like the following:
AXIS Transmitter –> DUT –> AXIS Receiver
I’d like to test my DUT for operation in the case that the AXIS Receiver is not ready for more data but the transmitter…[Read more]
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