hostside/measure-speeds: initialise detend, settle_detend

diff --git a/hostside/measure-speeds b/hostside/measure-speeds
index d809ec702816b8d92b3ad86e6f29e8ead62821f9..7496b876d34a3bd07e001e8ec1bc0d6e224cad72 100755 (executable)
--- a/hostside/measure-speeds
+++ b/hostside/measure-speeds
@@ -27,6 +27,9 @@ proc send-now {str} {
 
 proc startup {} {
     global port rwy buf last_fast_speed noise funcs_msgs loco
+    global detend settle_detend
+    set detend {}
+    set settle_detend {}
     set rwy [open $port r+]
     fconfigure $rwy -blocking no -buffering none -encoding binary \
            -translation binary