Activity

Thanks, Jim. I have been playing with OSVVM with a couple of simulators that happen to use StartUp.tcl. I should have double checked the script user guide.

I’ll primarily be using XSIM for self-study and working through some toy examples where I want to include Xilinx’s IP. It has certainly been less of a hassle using the OSVVM AXI VC compared…[Read more]

All of the OSVVM VC have test cases for each feature. For AxiStream, they are in the directory AXI4/AxiStream/TestCases.
The set these they way you are thinking, see TbStream_AxiTiming1.vhd and TbStream_AxiTiming2.vhd. You can also use random delays, see TbStream_SendGetRandom1.vhd and TbStream_SendGetRandom2.vhd

Below is what I see running XSIM using $OsvvmLibraries/RunAllTests.pro. There are 8 failures in the RunAllTests.pro. They all have to do with passing integer and time values through the transaction record. With time it never works. With integer, it seems to work some of the time. For integer it may be possible to trace the why, for time it…[Read more]

From the Scripts_user_guide.pdf:
To run OSVVM scripts in XSIM, start Vivado and then run the StartXSIM using:
source <path-to-OsvvmLibraries>/OsvvmLibraries/Scripts/StartXSIM.tcl

This will then set the simulator to XSIM and instead of analyzing MemoryGenericPkg.vhd, it will do:
analyze deprecated/MemoryGenericPkg_xilinx.vhd

All of the…[Read more]

These above write bin values were not generated by the code you posted. See annotations in the code.

I tried printing the logs with writebin. The coverage seems to work. its onyl the YAML reports which does not print it right I suppose:
%% WriteBin: RxCov
%% count PASSED Bin:(1) Count = 1 AtLeast = 1
%% count PASSED Bin:(2) Count = 1 AtLeast = 1
%% count PASSED Bin:(3) Count = 1 AtLeast = 1
%% count PASSED Bin:(4) Count = 1…[Read more]

Hi ALex,
I added the two suggestions I made previously to the code. Choose one of them.
I also changed the WaitForClock(clk, 2) to WaitForClock(InterruptRec, 2).
Usually I do not put clock in TestCtrl. The reason being is if you have lots of
different clocks in your system, it is easy to use the wrong one.

`
rx_process : process is…[Read more]

Still does not work which I had already tried. strange that the coverage is always zero. seems to be a structural issue but could not explain why. Starting a new thread for this.

Hi Alex,
I see a delta cycle issue. Call ICover using Cnt rather than rx_cnt_s.
Or alternately do a wait for 0 ns ; before the call to ICover.

Best Reegards,
Jim

Hi Alex,
Please use a separate topic for separate issues.

I don’t see anything obvious in your code. Have you tried single step?

Jim

Thanks Jim. Meanwhile I am exploring functional coverage. But cannot get a simple coverage running. Please point out what is wrong here:
rx_cnt_s counts upto 20 which has been verified.
RxCov is a signal.

rx_process : process is
variable cnt : integer := 0;

variable rd_data : std_logic_vector(31 downto 0) := (others =>…[Read more]