Open Source VHDL Verification Methodology | Alex | Activity https://osvvm.org/members/alexkrish93/activity Activity feed for Alex. Mon, 25 May 2026 07:33:49 +0100 https://buddypress.org/?v= en-US 30 hourly 2 69d7697b0ecd791451916819b826174e Alex replied to the topic Problems with OSVVM Functional Coverage in the forum OSVVM https://osvvm.org/forums/topic/problems-with-osvvm-functional-coverage#post-2675 Tue, 15 Apr 2025 14:48:29 +0100 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]

]]> 0 b7ac11849dcd955335f8d3708bb9b3e9 Alex replied to the topic How to use the same AxiManager in two different processes to access AXI4 slave in the forum OSVVM https://osvvm.org/forums/topic/how-to-use-the-same-aximanager-in-two-different-processe-to-access-axi4-slave#post-2673 Tue, 15 Apr 2025 12:00:58 +0100 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.

]]> 0 ae2478874b59b359a8e3cfeff9db2d52 Alex started the topic Problems with OSVVM Functional Coverage in the forum OSVVM https://osvvm.org/forums/topic/problems-with-osvvm-functional-coverage Tue, 15 Apr 2025 12:00:01 +0100 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.

Background: This is a VUNIT testbench with where the DUT has AXI slaves. I use the Axi4Lite Manager as a master to access the AXI slaves in the DUT. The snippet below is part of the…[Read more]

]]> 0 13faaed90f617a07f714a7ab5c579598 Alex replied to the topic How to use the same AxiManager in two different processes to access AXI4 slave in the forum OSVVM https://osvvm.org/forums/topic/how-to-use-the-same-aximanager-in-two-different-processe-to-access-axi4-slave#post-2669 Mon, 14 Apr 2025 15:06:26 +0100 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]

]]> 0 038bea291c9db16037f23ec11115fd4d Alex replied to the topic How to use the same AxiManager in two different processes to access AXI4 slave in the forum OSVVM https://osvvm.org/forums/topic/how-to-use-the-same-aximanager-in-two-different-processe-to-access-axi4-slave#post-2655 Fri, 14 Mar 2025 14:57:53 +0000 Thanks for the insight.

VUnit is an exisiting framework which is part of the current CI pipeline setup I use. Currently most of the testbenches use VUNIT HDL as well as the automation test runner features for CI.

As mentioned, looking to benefit from the OSVVM features especially VCs, functional coverage and reporting to enable a comprehensive…[Read more]

]]> 0 934ea750a61b895c5ffeaa905710502f Alex replied to the topic How to use the same AxiManager in two different processes to access AXI4 slave in the forum OSVVM https://osvvm.org/forums/topic/how-to-use-the-same-aximanager-in-two-different-processe-to-access-axi4-slave#post-2650 Wed, 12 Mar 2025 10:24:39 +0000 Thanks Jim, that helped. Now I have a running VUNIT testbench with the AXI4Lite VC. I would like to further extend this with the reporting features. I did browse through the scripting docu and the examples about the reporting. I am able to generate the YAML files. But the HTML reports are missing. Since I run a VUNIT testbench is there anything…[Read more]

]]> 0 6c1961d51b8189d3eee23193e0295445 Alex replied to the topic How to use the same AxiManager in two different processes to access AXI4 slave in the forum OSVVM https://osvvm.org/forums/topic/how-to-use-the-same-aximanager-in-two-different-processe-to-access-axi4-slave#post-2647 Sun, 09 Mar 2025 20:21:52 +0000 I use the Axi4Lite Manager as a master to access an AXI slave in the DUT. I need a solution to access the AXI slave from both the processes whcih I an currently not able to because of the multiple detect error. The AXI slave does have a memory as well as register map for configuration. And the interrupt comes from the slave indicating an arriving…[Read more]

]]> 0 55918afee646353b36db1579448c2f96 Alex started the topic How to use the same AxiManager in two different processes to access AXI4 slave in the forum OSVVM https://osvvm.org/forums/topic/how-to-use-the-same-aximanager-in-two-different-processe-to-access-axi4-slave Fri, 07 Mar 2025 15:26:22 +0000 I have been using VUNIT for a while now and now exploring the benefits of OSVVM VCs. I have a VUNIT testbench where I access an AXI4Lite Slave from two processes with the same OSVVM AXI4LiteManager AddressBusRecType. When I tried this I stumbled upon the Multiple Driver Detection error. From looking at the TbAxi4_ReleaseAcquireManager1.vhd…[Read more]

]]> 0 649b0fdb54704e5c9b44d56ee43b8d1e Alex became a registered member https://osvvm.org/activity/p/10608 Tue, 04 Mar 2025 10:23:53 +0000 0