之前在公司实习使用的后端脚本，求大神解释

佳文与晨旭

主要有这两个文件看不懂，希望有人能讲讲这两个文件在干什么，如果想要深入了解学习，需要往哪个方向学习，有哪些知识储备
脚本1



## gflow proc gflow_exec_plug_cmds
proc gflow_exec_plug_cmds { var_name } {
    global gflow
    puts "GFLOW INFo: exec plug cmds var $var_name"
    if { [ info exists $var_name] } {
        eval "set all cmds \$$var name"
        if { [ llength $all_cmds ] > 0 } {
            foreach cmd $all_cmds {
                puts "GFLOW INFO: plug cmd: $cmd"
                if { [ catch {eval $cmd} err1 err2 ] } { puts $err1 ; puts $err2 }
            }
            puts "GFLOW INFO: finish exwc plug cmds $var_name"
        } else {
            puts "GFLOW INFO : var $var_name defined is empty"
        }
    } else {
        puts "GFLOW INFO: can't find var $var_name defined"
    }
    return
}

##gflow proc gflow_source_plug_file
proc gflow_source_plug_file { file_path } {
    global gflow
    puts "GFLOW INFO: source plug file $file_path"
    if { [ file exists $file_path ] } {
        if { [ catch { source -verbose $file_path } err1 err2 ] } { puts $err1 ; puts $err2 }
        puts "GFLOW INFO: finish source plug file $file_path"
    } else {
        puts "GFLOW INFO: can't find plug file $file_path"
    }
    return
}

#gflow fer gflow no empty value
proc gflow_get_gflow_no_empty_vaule { init mode args } {
    global gflow
    set result $init
    foreach var $args {
        if { [ info exists $var ] && $mode == 0 } { eval "if { ! \[ regexp {^\s*$} \$${var} \] } { set result \$${var} } " }
        if { [ info exists $var ] && $mode == 1 } { eval "set result \$${var}" }
    }
    return $result
}

脚本2

if { [array exists gflow] } { unset gflow }
global gflow
set gflow(block_eco_signoff_targets) {staeco preco prfinish genrc gandm gencdl mergedm lvs drc ant sta gentwf sir dir sem}
set gflow(block_signoff_targets) {prfinish genrc gendm gencdl mergedm lvs drc ant sta gentwf sir dir sem}
set gflow(boundart_cell,addEndCap,-prefix){END_CAP}
set gflow(boundary_cell,setEndCapMode,-bottomEdge) {GDCAPBWP7T FILL1BWP7T}
set gflow(boundary_cell,setEndCapMode,-boundary_tap) {true}
set gflow(boundary_cell,setEndCapMode,-leftEdge) {DCAPBWP7T}
set gflow(boundary_cell,setEndCapMode,-rightEdge) {DCAPBWP7T}
set gflow(boundary_cell,setEndCapMode,-topEdge) {GDCAPBWP7T FILL1BWP7T}
set gflow(boundary_cell,set_well_tap_mode,-bottom_tap_cell) {TAPCELLBWP7T}
set gflow(boundary_cell,set_well_tap_mode,-cell) {TAPCELLBWP7T}
set gflow(boundary_cell,set_well_tap_mode,-rule) {28}
set gflow(boundary_cell,set_well_tap_mode,-top_tap_cell) {TAPCELLBWP7T}
set gflow(boundary_cell,use_gflow_script) {true}
set gflow(boundary_cell,user_script) {}
set gflow(calibre,lvs,post_includes) {
    { LVS BOX EE0256X1CA180GM01 EE0256X1CA180GM01 }  
}
set gflow(ccopt_property,buffer_cells) {CKBD1OBWP7T CKBD8BWP7T CKBD6BWP7T CKBD4BWP7T}
set gflow(ccopt_property,clock_gating_cells) {CKLNQD8BWP7T CKLNQD6BWP7T CKLNQD4BWP7T CKLNQD2BWP7T CKLHQD8BWP7T CKLHQD6BWP7T CKLHQD4BWP7T CKLHQD2BWP7T}  
set gflow(ccopt_property,inverter cells) {CKND1OBWP7T CKND8BWP7T CKND6BWP7T CKND4BWP7T}
set gflow(ccopt_property,logic_cells) {CKXOR2D4BWP7T CKXOR2D2BWP7T CKMUX2D2BWP7T CKMUX2D1BWP7T CKAN2D8BWP7T CKAN2D4BWP7T CKAN2D2BWP7T CKND2D4BWP7T CKND2D3BWP7T CKND2D2BWP7T}
set gflow(ccopt_property,max_fanout) {20}
set gflow(ccopt_property,max_source_to_sink_net_length) {350}
set gflow(ccopt_property,primary_delay_corner) {ss_1p62v_125c_cmax_125c}
set gflow(ccopt_property,target_max_trans) {0.5}
set gflow(ccopt_property,target_skew) {0.5}
set gflow(ccopt_property,use_inverters) {true}

轩辕志瑜

第一个脚本 gflow_exec_plug_cmds 是拼接命令，gflow_source_plug_file 设置源文件 ， gflow_get_gflow_no_empty_vaule 判断是不是有空值变量。第二个脚本是设置boundary cell 也就是芯片的四个边， 接下来就是设置pdk里对应逻辑单元的单元数组之后就是设置些必要参数。 这些脚本都是tcl脚本语言，学好tcl脚本语言然后再看看EDA有啥对外 function 和咋使用，那写个流程不是问题。

佳文与晨旭

轩辕志瑜 发表于 2024-6-6 02:16
第一个脚本 gflow_exec_plug_cmds 是拼接命令，gflow_source_plug_file 设置源文件 ， gflow_get_gflow_no_ ...

好的好的 非常感谢