diff --git a/motorApp/HytecSrc/README_Hy8601Asyn b/motorApp/HytecSrc/README_Hy8601Asyn
index ee46a782..30e5e4f2 100644
--- a/motorApp/HytecSrc/README_Hy8601Asyn
+++ b/motorApp/HytecSrc/README_Hy8601Asyn
@@ -188,6 +188,13 @@ This configures the 8601 card with
 	all 4 axes use encoder
 	all 4 axes have quardrature encoder hence their ratios are 0.25
 
+Please note, since the parameters in the function is more than 10, in VxWorks, the start up 
+script loading will complain about " too many parameters..." In this case, adding
+
+	iocsh()
+
+before this routine in start up script will solve the problem.
+
 
 2). Database definition file
 ----------------------------