Open Source VHDL Verification Methodology | Christon Fredrick | Activity https://osvvm.org/members/chrisfredrick/activity Activity feed for Christon Fredrick. Mon, 21 Sep 2026 16:46:56 +0100 https://buddypress.org/?v= en-US 30 hourly 2 04d0b8d57efa1bd2c2ff04c156a13075 Christon Fredrick replied to the topic Issues with GHDL when compiling OSVVM packages in the forum OSVVM https://osvvm.org/forums/topic/issues-with-ghdl-when-compiling-osvvm-packages#post-2726 Tue, 10 Jun 2025 17:53:14 +0100 the GHDL version was 5.0.1, but good news, the OSVVM packages compiled with NVC. And also the basic VHDL code ran and the random function is really powerful when implemented. Really appreciate the work in OSVVM!

]]> 0 d21eb8cfeee565989254c6894d596503 Christon Fredrick started the topic Issues with GHDL when compiling OSVVM packages in the forum OSVVM https://osvvm.org/forums/topic/issues-with-ghdl-when-compiling-osvvm-packages Mon, 26 May 2025 09:20:36 +0100 I first compiled the required dependencies and GHDL compiled them well. but when I compiled the AlertLogPkg.vhd, it didn’t and showed error like, ^
osvvm/AlertLogPkg.vhd:5356:43:error: no overloaded function found matching “to_string”
“= Expected : ” &…[Read more]

]]> 0 0e5c891254f4ce2947b73556290d72a7 Christon Fredrick replied to the topic Is GHDL easier for OSVVM or Xsim 2024.2 (or later)? in the forum OSVVM https://osvvm.org/forums/topic/is-ghdl-easier-for-osvvm-or-xsim-2024-2-or-later#post-2711 Thu, 22 May 2025 14:10:25 +0100 The problem is, with Ubuntu 24.04, I think we can install the latest GHDL with snap store, but I have pop!_os 22.04 which is like Ubuntu 22.04. Here I have to install GHDL from github. I installed 5.0.1 GHDL. But I have all sorts of problems (with dependencies as I am doing it manually) where I couldn’t initialise and create the first work object…[Read more]

]]> 0 f42d6c43d2df07002476888a522ae391 Christon Fredrick started the topic Is GHDL easier for OSVVM or Xsim 2024.2 (or later)? in the forum OSVVM https://osvvm.org/forums/topic/is-ghdl-easier-for-osvvm-or-xsim-2024-2-or-later Thu, 22 May 2025 11:18:46 +0100 I heard that there is no built-in support for osvvm with GHDL, but there is contrastingly, a built-in support for OSVVM in XSim. Also I tried with the help of ChatGPT to try and simulate a simple adder.vhd using OSVVM. I couldn’t do it. the compilation is not proper as it might miss some dependencies, and it’s all manual and I find it very…[Read more]

]]> 0 070a2bb055ebbd4c7b85845b509c4779 Christon Fredrick replied to the topic Waveforms not generated correctly (GHDL) in the forum OSVVM https://osvvm.org/forums/topic/waveforms-not-generated-correctly-ghdl#post-2707 Wed, 21 May 2025 10:31:02 +0100 Hi, I see that you have some successful simulations with GHDL. may I ask which version of GHDL is compatible with OSVVM 2025.2? I am having the build error when I used GHDL 3.0.0 version. the normal libraries are being built with “rlwrap tclsh”, but when i want to build my adder_tb, it is not being build, and has errors. what am I doing wrong? I…[Read more]

]]> 0 a9e90bafcc0608f74d62800aee4a4f18 Christon Fredrick started the topic Is Vivado 2022.2(Xsim) suitable for OSVVM simulations? in the forum OSVVM https://osvvm.org/forums/topic/is-vivado-2022-2xsim-suitable-for-osvvm-simulations Sat, 17 May 2025 21:54:42 +0100 I’m a beginner. I am trying to add the library in the Vivado Project, but in TCL scritps, I am getting this error for the following commands.

create_lib -simlib osvvm $OSVVM_HOME/compiled_simlib/osvvm
invalid command name “create_lib”
compile_vhdl -library osvvm $OSVVM_HOME/Common/src/AddressBusResponderTransactionPkg.vhd
invalid command name…[Read more]

]]> 0 8e8d8243fb8b860aaca22c22086c215d Christon Fredrick became a registered member https://osvvm.org/activity/p/10733 Sat, 10 May 2025 02:37:46 +0100 0