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Ethan became a registered member 1 year ago
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Jim Lewis wrote a new post 1 year ago
OSVVM 2024.03 Release
OSVVM 2024.03 updates can be summarized as: Settings/Configuration Updates Xilinx Update OSVVM Issues Resolved Added […]
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Jim Lewis replied to the topic Alert ERROR in Default in the forum OSVVM 1 year, 1 month ago
For the next release of OSVVM, I have added an AlertLogID input to SafeResize and all of the OSVVM VC specify the ID on the call to SafeResize. I also updated the error message to be of the following form:
Alert ERROR in AxiManager_1, SafeResize: value changed on resize. Original value: 01AF, Resized value: AF
Hopefully this will…[Read more]
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ben became a registered member 1 year, 1 month ago
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Oliver became a registered member 1 year, 1 month ago
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Jim Lewis replied to the topic case splitting in the forum OSVVM 1 year, 1 month ago
Step 1: If you have complex clock domain crossings, you probably need a clock domain crossing tool. Especially to find anything that might loop back.
Step 2: Use your directed cases to explore the relationships you understand.
Step 3: Add jitter to your clock (or clocks depending on the number of clock domains you have) so that your…[Read more] -
fpgaphreak started the topic case splitting in the forum OSVVM 1 year, 1 month ago
In some cases i need a full coverage of cases when doing simulations of timing critial circuits which cause deviations in behaviour. I would like to know if OSVVM supports this in any way.
To understand the issue I would like to describe the problem:
Take a signal of unknown phase and level and a synchronizer to get it into a circuit with an…[Read more]
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fpgaphreak replied to the topic Creating Asynchronous Clocks in the forum OSVVM 1 year, 1 month ago
Me too. What is about Jitter Simulation with min/max definitions of the phase to simulate short term jitter effects?
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fpgaphreak replied to the topic I2C Bus pins simulation? in the forum VHDL 1 year, 1 month ago
Although old, a late response: This topic is often discussed together with pull ups constrained in the XDC for a pin which hardly can be simulated. Together with timing demands and driver issues, which are the common problems at I2C I recommend to use an analog behaviour model which transforms both the outout of the VHDL Pin and its input to a…[Read more]
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fpgaphreak replied to the topic Xilinx not supporting VHDL anymore? in the forum VHDL 1 year, 1 month ago
I think the complaint refers to the issue that the testbenches and example code for the design more and more is limited to Verilog for an unknown reason. Recently I again stumbled over a thing: A DDR Design cannot be built with an AXI-Interface in VHDL. The AXI is only available for Verilog.
Xilinx disreagards the fact that VHDL has certain…[Read more]
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