diff --git a/synthDC/README.md b/synthDC/README.md
index 91804b29b..edbd57340 100644
--- a/synthDC/README.md
+++ b/synthDC/README.md
@@ -31,3 +31,12 @@ SAIFPOWER
         0: switching factor power analysis
         1: RTL simulation driven power analysis.
 
+-----
+Extra Tool (PPA)
+
+To run ppa analysis that hones into target frequency, you can type:
+python3 ppa/ppaSynth.py from the synthDC directory.  This runs a sweep
+across all modules listed at the bottom of the ppaSynth.py file.
+
+
+