UVVM support GHDL open source simulator

General questions
1

Hello, I see that GHDL is a supported simulator for UVVM, but does anyone have a step-by-step tutorial how to compile and simulate using GHDL?

2

Hi,
Yes, UVVM can run with GHDL, but GHDL has to update their compile scripts to support UVVM from release v2019.09.02. From that release most of the VVCs has a Bitvis VIP Scoreboard dependency, i.e. the Scoreboard VIP has to be compiled prior to other VIP src files - see the compile order in VVC quick references, last page. So you can either run GHDL with an earlier release of UVVM or modify the compile order of the UVVM modules in the compile-uvvm.sh/ps1 file.

There have been a while since I used GHDL, but I think the syntax is something like:

DUT files

ghdl -a -frelaxed-rules --std=08 --work=lib ā€¦/src/src_file
ā€¦ and other DUT filesā€¦

UVVM Utility, VVC Framework, VIPs

ghdl -a -frelaxed-rules --std=08 --work=uvvm_util ā€¦/UVVM/uvvm_util/src/types_pkg.vhd
ghdl -a -frelaxed-rules --std=08 --work=uvvm_util ā€¦/UVVM/uvvm_util/src/adaptations_pkg.vhd
ā€¦ and the other filesā€¦

Compile TB

ghdl -a -frelaxed-rules --std=08 --work=TB lib ā€¦/tb/TB_file

Simulate

ghdl -e -frelaxed-rules --std=08 --work=TB lib TB_entity
ghdl -r -frelaxed-rules --std=08 --work=TB lib TB_entity

Br,
Marius

3

Thanks for your reply, Marius. Iā€™ll try it over the weekendšŸ‘

1 Like
4

Hi,

I want to start using GHDL with UVVM. I have problems on compiling uvvm_util on Windows. I tried to run compile.sh in git bash for UVVM_Light-master in scripts folder but couldnt succeed.

I tried using ghdl commands by obeying the orders in compile_order.txt. In windows console, I run these scripts inside src_util folder:

ghdl -a -frelaxed-rules --std=08 -Wno-hide -Wno-shared --work=uvvm_util types_pkg.vhd
ghdl -a -frelaxed-rules --std=08 -Wno-hide -Wno-shared --work=uvvm_util adaptations_pkg.vhd
ā€¦
ghdl -a -frelaxed-rules --std=08 -Wno-hide -Wno-shared --work=uvvm_util uvvm_util_context.vhd

Then redirect the consolde to the folder where my testbench code is there. I tried running testbench code, in which there are lines:

library uvvm_util;
context uvvm_util.uvvm_util_context;

However GHDL gives error such as:

tb_half_adder.vhd:5:9: cannot find resource library ā€œuvvm_utilā€
tb_half_adder.vhd:6:19: unit ā€œuvvm_util_contextā€ not found in library ā€œuvvm_utilā€
tb_half_adder.vhd:11:28: entity ā€˜tb_half_adderā€™ was not analyzed

so I assume uvvm_util library compilation is not completed successfully. Maybe I miss a simple point. Any help would be appreciated.

Regards,

Burak

5

I also tried source compile.sh, it gives no error in git bash. I tried running my testbench on git bash but still got the same error ā€œcannot find resource library uvvm_utilā€

6

well for some reason i forgot to add std.env to testbench

library STD;
use std.env.all;

maybe it cause the problem, i will try at home if it is the problem

regards

Burak

7

Hi,
Did you solve the problem?

Br,
Marius

8

i quit using ghdl and download free version of intelā€™s modelsim 19.1. i had no problem in modelsim, even posted about how to use UVVM in modelsim in my personal webpage:

https://www.mehmetburakaykenar.com/a-uvvm-example-uart-transmitter-testbench-simulation-on-modelsim/128/

Regards,

Burak

20 Ara 2021 Pzt 23:41 tarihinde Marius via UVVM <uvvm@discoursemail.com> şunu yazdı:

1 Like
9

Hi mate.
Iā€™m new on UVVM, Iā€™ve read the its user guide and getting started document but iā€™m not able to compile the code below using UVVM. I really appreciate your help, Iā€™m on windows and Iā€™ve already installed GHDL 3.0.

library IEEE;
use IEEE.std_logic_1164.all;
library uvvm_util;
context uvvm_util.uvvm_util_context;
library uvvm_vvc_framework;
use uvvm_vvc_framework.ti_vvc_framework_support_pkg.all;
library bitvis_vip_sbi;
context bitvis_vip_sbi.vvc_context;
entity uvvm_tb is
end entity uvvm_tb;
architecture func of uvvm_tb is
begin
p_main : process
begin
log(ā€œStarting simulations.ā€);
std.env.stop;
wait;
end process p_main;
end func;

10

Hi, I have tested your code using HDLRegression with GHDL simulator without any issues

py test.py -s ghdl 

====================================================================================================================================================================
  HDLRegression version 0.43.3
  See /doc/hdlregression.pdf for documentation.
====================================================================================================================================================================


Scanning files...
Building test suite structure...
Compiling library: uvvm_util  - OK - 
Compiling library: uvvm_vvc_framework  - OK - 
Compiling library: bitvis_vip_scoreboard  - OK - 
Compiling library: bitvis_vip_sbi  - OK - 
Compiling library: test_lib  - OK - 

Starting simulations...
Running 1 out of 1 test(s) using 1 thread(s).
Running: test_lib.uvvm_tb.func (test_id: 1)
Result: PASS (0h:0m:0s).

--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Simulation run time: 0h:0m:0s.
SIMULATION SUCCESS: 1 passing test(s).

I am running GHDL version

GHDL 3.0.0 (2.0.0.r1417.g7de967c51) [Dunoon edition]
 Compiled with GNAT Version: Community 2019 (20190517-83)
 mcode code generator

Can you share the transcript/error message?

Br,
Marius

11

Hi,

I was curious to see if the latest version of UVVM would work with GHDL on an M4 Macbook. I know, utter madness, but GHDL does actually run well on this machine. Unfortunately it seems UVVM doesnā€™t, when using the ghdl_compile_all_and_simulate.sh script in the bitvis_uart demo the compilation runs fine but elaboration fails with a bunch of messages like

Undefined symbols for architecture arm64:
ā€œ_bitvis_vip_sbi__td_cmd_queue_pkg__ELABORATEDā€, referenced from:
_bitvis_vip_sbi__sbi_vvc__PKG_ELAB in sbi_vvc.o
_bitvis_vip_sbi__sbi_vvc__ARCH__behave__DECL_ELAB in sbi_vvc.o
ā€œ_bitvis_vip_sbi__td_cmd_queue_pkg__ELAB_BODYā€, referenced from:
_bitvis_vip_sbi__sbi_vvc__PKG_ELAB in sbi_vvc.o
_bitvis_vip_sbi__sbi_vvc__ARCH__behave__DECL_ELAB in sbi_vvc.o

Calling ghdl ā€“version gives me

GHDL 6.0.0 (6.0.0.r0.ge589c698c) [Dunoon edition]
Compiled with GNAT Version: 14.2.0
llvm 22.1.0 code generator

and I am using the UVVM-2026.03.20 version of UVVM.

Iā€™m probably completely insane to expect this to work but maybe there is a simple explanation.

Just as a datapoint the bitvis_irqc example works fine