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cv32e40x #2542

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vinomutty opened this issue Oct 16, 2024 · 8 comments
Open

cv32e40x #2542

vinomutty opened this issue Oct 16, 2024 · 8 comments

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@vinomutty
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HI
we are trying to run cv32e40x
corev_rand_arithmetic_base_test , but we are facing the error.

image

@silabs-robin
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Hi, @vinomutty.
I am not really on support duty, but I was just working on cv32e40x and happened to spot your ticket.


we are trying to run cv32e40x

How?
Seeing the command you run would help.


corev_rand_arithmetic_base_test

Does hello-world run ok?


/uvma_rvvi_pkg.flist

A path starting with /?
Looks very much like some env var is missing.
Looks like whatever .flist file that is trying to include the above one, likely has a line line this: -f ${SOME_ENV_VAR)/uvma_rvvi_pkg.flist.


One thing that potentially might work: Add USE_ISS=0 to your make command.

@vinomutty
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command:
make gen_corev-dv test TEST=corev_rand_arithmetic_base _test SIMULATOR=vsim USE _ISS=NO

hello word also not working

image

@silabs-robin
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SIMULATOR=vsim

If you are using Questa, why does the screenshot reference Verilator?


hello word also not working

If I was having this problem, I would debug hello-world rather than corev_rand_arithmetic_base, as I think that would be easier (not by much, but a little).


mkdir: missing operand

This too indicates some env var is not set. Did you investigate my previous remark about this?


Another note, IIRC cv32e40x/release might be more up-to-date when it comes to vsim-compatibility.
(But, the env var thing seems much more likely to be a culprit.)

@MikeOpenHWGroup
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The last time I attempted to use Verilator with the E40X it would not compile. The E40X RTL incorporates SystemVerilog Interfaces and at the time Verilator did not support them. I believe the latest stable version (v5.028) does, but I have not attempted it. I can guarantee that Verilator cannot support the UVM environment implemented in CORE-V-VERIF.

@vinomutty
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we cloned new branch cv32e40x/release and tried running hello word testcase and getting this error
error new

pin not connected

@MikeOpenHWGroup
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MikeOpenHWGroup commented Oct 17, 2024

There are two problems here:

  1. You are using Verilator. As both @silabs-robin and I have indicated, it is very unlikely that Verilator can compile the E40X.
  2. Because of the the above problem, the testbench in core-v-verif/cv32e40x/tb/core has not been maintained. You will need to update it to match the pinout of the CV32E40X.

If you are willing to take this task on will can consider accepting a pull-request from you to get Verilator working with the E40X. However, there is no guarantee of success since we do not know if Verilator can support all the RTL code-constructs used. Do you have access to a commercial SV simulator?

@vinomutty
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we cloned new branch with
git clone https://github.com/openhwgroup/core-v-verif/blob/cv32e40s/dev-1

We tried to run Hello-world test but facing the below errors

-- Compiling module riscv_random_stall
** Error: /Projects/marmik_project/hemashri.bhagavati/cv32e40s/core-v-verif/cv32e40s/tb/core/tb_riscv/riscv_random_stall.sv(140): (vlog-2730) Undefined variable: 'STANDARD'.
** Error: /Projects/marmik_project/hemashri.bhagavati/cv32e40s/core-v-verif/cv32e40s/tb/core/tb_riscv/riscv_random_stall.sv(142): (vlog-2730) Undefined variable: 'RANDOM'.
** Error: /Projects/marmik_project/hemashri.bhagavati/cv32e40s/core-v-verif/cv32e40s/tb/core/tb_riscv/riscv_random_stall.sv(191): (vlog-2730) Undefined variable: 'STANDARD'.
** Error: /Projects/marmik_project/hemashri.bhagavati/cv32e40s/core-v-verif/cv32e40s/tb/core/tb_riscv/riscv_random_stall.sv(193): (vlog-2730) Undefined variable: 'RANDOM'.
** Error: /Projects/marmik_project/hemashri.bhagavati/cv32e40s/core-v-verif/cv32e40s/tb/core/tb_riscv/riscv_random_interrupt_generator.sv(27): (vlog-13006) Could not find the package (perturbation_defines). Design read will continue, but expect a cascade of errors after this failure. Furthermore if you experience a vopt-7 error immediately before this error then please check the package names or the library search paths on the command line.

@MikeOpenHWGroup
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It is doubtful that the vsim.mk file is fullly up-to-date. Also, please ensure that you are using a fully featured version of Questa.

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