From 96aef8af8fec104181cf4ecca9d05a1120821eab Mon Sep 17 00:00:00 2001
From: "Heesterman, Peter J" <Peter.Heesterman@ukaea.uk>
Date: Thu, 10 Feb 2022 08:38:22 +0000
Subject: [PATCH] Only call SetVSAmplitude if the camera supports it. (Issue
 #49)

---
 andorApp/src/andorCCD.cpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/andorApp/src/andorCCD.cpp b/andorApp/src/andorCCD.cpp
index dbfa10c8..d06801ee 100755
--- a/andorApp/src/andorCCD.cpp
+++ b/andorApp/src/andorCCD.cpp
@@ -1409,10 +1409,13 @@ asynStatus AndorCCD::setupAcquisition()
         driverName, functionName, verticalShiftPeriod);
     checkStatus(SetVSSpeed(verticalShiftPeriod));
 
-    asynPrint(this->pasynUserSelf, ASYN_TRACE_FLOW,
-        "%s:%s:, SetVSAmplitude(%d)\n",
-        driverName, functionName, verticalShiftAmplitude);
-    checkStatus(SetVSAmplitude(verticalShiftAmplitude));
+    if ((mCapabilities.ulSetFunctions & AC_SETFUNCTION_VSAMPLITUDE) != 0)
+    {
+        asynPrint(this->pasynUserSelf, ASYN_TRACE_FLOW,
+          "%s:%s:, SetVSAmplitude(%d)\n",
+          driverName, functionName, verticalShiftAmplitude);
+        checkStatus(SetVSAmplitude(verticalShiftAmplitude));
+    }
 
     switch (imageMode) {
       case ADImageSingle: