update on how to run GL tests
diff --git a/INFO.md b/INFO.md
index 4bee4e5..9abbc17 100644
--- a/INFO.md
+++ b/INFO.md
@@ -76,6 +76,8 @@
There are some testbenches that you can use to check the scan chain and controller is working.
The default of 498 projects takes a very long time to simulate, so I advise overriding the configuration first:
+ # fetch the test projects
+ ./configure.py --test --update-projects
# rebuild config with only 20 projects
./configure.py --test --update-caravel --limit 20
@@ -85,8 +87,17 @@
# you will also need to set your PDK_ROOT environment variable
make test_scan_controller
-The Gate Level version (requires scan_controller and user_project_wrapper to be re-hardened to get the correct gate level netlists. These files are avaialable in the gl_test branch).
+The Gate Level simulation requires scan_controller and user_project_wrapper to be re-hardened to get the correct gate level netlists:
+* Edit openlane/scan_controller/config.tcl and change NUM_DESIGNS=498 to NUM_DESIGNS=20.
+* Then from the top level directory:
+
+ make scan_controller
+ make user_project_wrapper
+
+* Then run the GL test
+
+ cd verilog/dv/scan_controller
make test_scan_controller_gl
### Top level test: internal control
