- Added Makefile.RHEL8 for RHEL8

- Added a interMessagePeriod to SINQController, pmacController and MasterMACSController. Also a iocsh command to modify this at runtime

sinqEPICSApp/src/MasterMACSDriver.cpp

@@ -150,7 +150,7 @@ asynStatus
     /* read with a short timeout in order to remove duplicate messages 
      * from the line. This also serves to slow down communication
      */
-    pasynOctetSyncIO->read(pasynUserController_, mmacsResponse, 35, .05, &in, &reason); 
+    pasynOctetSyncIO->read(pasynUserController_, mmacsResponse, 35, interMessageSleep/1000., &in, &reason); 
 
     /* pack data for MasterMACS */
     len = strlen(command) + 6;

sinqEPICSApp/src/SINQController.cpp

@@ -5,10 +5,16 @@
   Code lifted from Torsten Boegershausen ESS code.
 
   Mark Koennecke, March 2017
+
+  Added code to manage an interMessageSleep 
+
+  Mark Koennecke, February 2024
 */
 
 #include "SINQController.h"
 #include "asynMotorController.h"
+#include "epicsExport.h"
+#include "iocsh.h"
 
 SINQController::SINQController(const char *portName, const char *SINQPortName, int numAxes, const int& extraParams)
   :  asynMotorController(portName, numAxes+1, NUM_MOTOR_DRIVER_PARAMS+extraParams,
@@ -20,6 +26,53 @@ SINQController::SINQController(const char *portName, const char *SINQPortName, i
 {
   createParam(motorMessageIsFromDriverString,    asynParamInt32,      &motorMessageIsFromDriver_);
   createParam(motorMessageTextString,            asynParamOctet,      &motorMessageText_);
+
+  interMessageSleep=20;
+}
+
+/** Set  the interMessageSleep at runtime */
+asynStatus SINQController::setInterMessageSleep(int messageSleep)
+{
+  lock();
+  interMessageSleep = messageSleep;
+  unlock();
+  return asynSuccess;
+}
+
+extern "C" {
+
+asynStatus setInterMessageSleep(const char *portName, int messageSleep)
+{
+  SINQController *pC;
+  static const char *functionName = "setIntermessageSleep";
+
+  pC = (SINQController*) findAsynPortDriver(portName);
+  if (!pC) {
+    printf("%s:%s: Error port %s not found\n", "SINQController", functionName, portName);
+    return asynError;
+  }
+    
+  return pC->setInterMessageSleep(messageSleep);
 }
 
 
+/* setInterMessageSleep */
+static const iocshArg setInterMessageSleepArg0 = {"Controller port name", iocshArgString};
+static const iocshArg setInterMessageSleepArg1 = {"inter message sleep time", iocshArgInt};
+static const iocshArg * const setInterMessageSleepArgs[] = {&setInterMessageSleepArg0,
+                                                           &setInterMessageSleepArg1};
+static const iocshFuncDef setInterMessageSleepDef = {"setInterMessageSleep", 2, setInterMessageSleepArgs};
+
+static void setInterMessageSleepCallFunc(const iocshArgBuf *args)
+{
+  setInterMessageSleep(args[0].sval, args[1].ival);
+}
+
+static void SINQControllerRegister(void)
+{
+  iocshRegister(&setInterMessageSleepDef, setInterMessageSleepCallFunc);
+}
+epicsExportRegistrar(SINQControllerRegister);
+
+} // extern C    
+

sinqEPICSApp/src/SINQController.h

@@ -18,11 +18,15 @@ class epicsShareClass SINQController : public asynMotorController
 {
  public:
   SINQController(const char *portName, const char *SINQPortName, int numAxes, const int& extraParams=2);
-
+  asynStatus setInterMessageSleep(int messageSleep);
+ 
   friend class SINQAxis;
  protected:
   int motorMessageIsFromDriver_;
   int motorMessageText_;
+
+  int interMessageSleep; // minimum time between message to the controller in microseconds
+                         // for slowing down communication to weak controllers.....
 }; 
 
 

sinqEPICSApp/src/pmacController.cpp

@@ -300,7 +300,7 @@ setIntegerParam(this->motorStatusCommsError_, 0);
 }
 }
 
-usleep(20); // slow down communication somewhat 
+usleep(interMessageSleep); // slow down communication somewhat 
 
 asynPrint(lowLevelPortUser_, ASYN_TRACEIO_DRIVER, "%s: response: %s\n", functionName, response); 
 debugFlow("Received: ");

sinqEPICSApp/src/sinq.dbd

@@ -9,6 +9,7 @@ registrar(pmacControllerRegister)
 registrar(pmacAsynIPPortRegister) 
 registrar(drvAsynMMACSPortRegisterCommands)
 registrar(MasterMACSRegister) 
+registrar(SINQControllerRegister) 
 
 #--------------------------------------------------------
 # With the PSI module build system, including these items actually