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RTimothyEdwards / qflow

Qflow full end-to-end digital synthesis flow for ASIC designs
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running through map9v3 tutorial after installing qflow and all the dependencies. getting error "migrate_tool undefined variable" #16

Closed donjonson closed 3 years ago

donjonson commented 3 years ago

I did not yet have migic installed when I installed qflow but I do now. however every time I run qflow it generates the project_vars.sh with many variables left empty. including migrate_tool, lvs_tool, drc_tool, gds_tool, display_tool.

I tried filling it out manually with the defaults indicated on the webesite magic_db etc. that allowed me to succed on the intiliazation step however with the synthesis step it apparently regenerates the project_vars.sh again without those variables defined.

how do I configure qflow to define thes? or at least not overwrite them when I manually define them?

donjonson commented 3 years ago

I see the problem: in the qflow.sh script there are if(0) for this: I changed if(0) to if(1) and it worked.

I am guessing this script was generated this way because I did not have magic installed before I installed qflow.

would be nice if a) qflow checked again at runtime for dependancies or at least give meaningful error messages so the user can quickly understand what is happening

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Make sure that the flow tools are defined with defaults

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if ( ! (${?synthesis_tool}) ) then if ( 1 ) then set synthesis_tool=yosys endif endif

if ( ! (${?placement_tool}) ) then if ( 1 ) then set placement_tool=graywolf else if ( 0 ) then set placement_tool=replace endif endif

if ( ! (${?sta_tool}) ) then set sta_tool=vesta endif

if ( ! (${?router_tool}) ) then if ( 1 ) then set router_tool=qrouter endif endif

if ( ! (${?migrate_tool}) ) then if ( 0 ) then set migrate_tool=magic_db endif endif

if ( ! (${?lvs_tool}) ) then if ( 0 ) then set lvs_tool=netgen_lvs endif endif

if ( ! (${?drc_tool}) ) then if ( 0 ) then set drc_tool=magic_drc endif endif

if ( ! (${?gds_tool}) ) then if ( 0 ) then set gds_tool=magic_gds endif endif

if ( ! (${?display_tool}) ) then if ( 0 ) then set display_tool=magic_view endif endif

RTimothyEdwards commented 3 years ago

@donjonson : These "1" and "0" values are generated from the results of running "configure", so the apparent behavior is that on doing "configure", the script did not find the location of most of the tools (qrouter was found, but magic, netgen, and graywolf were not). Since the script did not find them automatically, then the path to the tools would need to be passed to the "configure" script.

RTimothyEdwards commented 3 years ago

Correction: graywolf was found (also yosys was found). Only magic and netgen are not found.

donjonson commented 3 years ago

Thank you for the help I was able to get it working! well at least that much.