跟我学VMM testbech (2)---实战 MP2991

最新推荐文章于 2025-10-21 22:09:11 发布

原创最新推荐文章于 2025-10-21 22:09:11 发布 · 1.9k 阅读

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#random #branch #database #file #build #library

本文详细介绍了环境配置、脚本运行流程及关键参数解释，涵盖了目录层次、环境变量设置、runscript脚本功能、目录清理、测试案例运行、覆盖率分析及合并策略等核心内容。

下面我们讲一下整个环境，包括run script

目录层次：

sim |--- run | |---- run | |---- debussy.f | |---- list.f | |--- tb | |---- env | |---- mon | |---- otp | |---- ral |--- tests |--- cov

环境变量：

LD_LIBRARY_PATH=/ux/cad3/cad/tools/novasb/novas-201001/share/PLI/vcsd_mhpi_latest/LINUX

run script:

#!/bin/csh -f #################### Scan Command Line ################ set INFO = "###(info) ${0}" set ERROR = "###(error) ${0}" set num = $#argv set paras = "$argv[1-$num]" set paras_pass = "" set cov_arg ="" set testcase = "" set defines = "" set complist = "./list.f" set seed = "0" foreach i ($paras) if ( $?get_random_seed ) then set seed = $i unset get_random_seed else if ( "x$i" == "x-seed" ) then set get_random_seed else if ( "x$i" == "x-h" || "x$i" == "x-help" ) then set paras_help break else if ( "x$i" == "x-trace" ) then set paras_trace else if ( "x$i" == "x-cov" ) then set paras_cov else if ( "x$i" == "x-clean" ) then set paras_clean break else if ( $i =~ +* ) then set paras_pass = "${paras_pass} $i" else if ( $i !~ -* && $i !~ +* ) then set testcase = $i else echo "${ERROR}: unknown argument $paras" set paras_help break endif end ################### Remove redundant files ################# if ( $?paras_clean ) then echo "${INFO}: remove redundant files and directories" /rm -fr simv* *.vpd csrc DVEfiles *.key vcs* *.log urg* *.hex *.bin vc_hdrs.h /rm -fr ../cov/coverage.* ../cov/urgReport /rm -fr verdiLog *.fsdb VerdiLog exit endif ## Whether the test case exists if ( "$testcase" == "" ) then echo "${ERROR}: No testcase as parameter" set paras_help endif #################### Help Info ################ if ( $?paras_help ) then cat <<EOU Usage: run testcase - run vcs simulation. testcase: - testcase name,include path. Options: -help[-h] - Display this messages. -clean - Clean redundant directroy and file. -only - Only Compile Assembly/C file. +nofsdb - Do not dump waveform. EOU exit 0 endif ## Whether the testcase directory exists if ( ! -e "../tests/${testcase}.sv" ) then echo "${ERROR}: ../tests/${testcase}.sv can not open" exit endif echo "============================================================== " echo "||| Build RAL Class ||| " echo "============================================================== " ralgen -l sv -t svidRegSys -b -o ../tb/ral/ral_svidRegSys.sv ../tb/ral/svidReg.ralf echo "============================================================== " echo "||| Build VCS and Run Simulation ||| " echo "============================================================== " set log_file = `echo $testcase | sed "s////_/g"` if ( $?paras_cov ) then set cov_arg = "-cm line+cond+branch+fsm -cm_dir ../cov/coverage.cm" endif vcs -Mupdate +systemverilogext+.sv / -lca / -debug_all / -notice / -ntb_opts rvm / ${cov_arg} / -fsdb / $defines / -f $complist / ../tests/${testcase}.sv / -l ./log/${log_file}_${seed}.log if ( $status ) then exit; endif if ( $?paras_trace) then set paras_pass = "$paras_pass +vmm_log_default=trace" else set paras_pass = "$paras_pass +vmm_log_default=normal" endif if ( $?paras_cov ) then set cov_arg = "-cm line+cond+branch+fsm -cm_dir ../cov/coverage.cm -cm_name ${log_file}_${seed}" endif ./simv ${paras_pass} ${cov_arg} +ntb_random_seed=$seed -a ./log/${log_file}_${seed}.log

list.f 由 design.f 和 test.f (设计文件和testbench文件）组成。

test.f 文件内容如下

+define+SVIDREGSYS_TOP_PATH=svidTBTop.logic_core ../tb/env/wavedump.sv ../tb/env/svidTBTop.sv ../tb/env/svidIntf.sv // ../tests/test.sv

runall 会对同一个testcase 产生不同的randome seed

#!/bin/csh -f @ i = 0 while ( $i <= 100 ) echo "-------- seed = $i -----------" run test_normal -seed $i -cov +nofsdb run test_setvid -seed $i -cov +nofsdb run test_full -seed $i -cov +nofsdb run adc_test -seed $i -cov +nofsdb echo "------- round $i done ---------" @ i++ end

run 后将产生vpd和（包含log信息的）fsdb文件。如果加入-cov选项，同时在cov目录下生成coverage database，通过urg可以转化为HTML的浏览形式(生成urgReport）

urg -dir coverage.cm -grade

如果我们要合并verilog 环境产生的coverage的data base 那么如下

urg -dir vmm_coverage.cm verilog_covergae.cm -map DUTTopModuleName

如果我们要用dve进行代码覆盖率和coverage分析，合并database 如下

urg -dir vmm_coverage.cm verilog_covergae.cm -map DUTTopModuleName -dbname merged_dirname