diff --git a/slsReceiverSoftware/gitInfo.txt b/slsReceiverSoftware/gitInfo.txt
index cf5def048..410c414c3 100644
--- a/slsReceiverSoftware/gitInfo.txt
+++ b/slsReceiverSoftware/gitInfo.txt
@@ -1,9 +1,9 @@
 Path: slsDetectorsPackage/slsReceiverSoftware 
 URL: origin git@gitorious.psi.ch:sls_det_software/sls_receiver_software.git 
 Repository Root: origin git@gitorious.psi.ch:sls_det_software/sls_receiver_software.git 
-Repsitory UUID: 1c259aeba8b068b9f6e550d63a9a3a14bd7d3ab7 
-Revision: 6 
+Repsitory UUID: e019a6ce7d96d4ac9cb5762b7137245aedb4d5b8 
+Revision: 22 
 Branch: master 
-Last Changed Author: Maliakal_Dhanya 
-Last Changed Rev: 6 
-Last Changed Date: 2014-06-03 12:06:57 +0200
+Last Changed Author: Anna_Bergamaschi 
+Last Changed Rev: 22 
+Last Changed Date: 2014-10-15 09:22:40 +0200
diff --git a/slsReceiverSoftware/include/UDPBaseImplementation.h b/slsReceiverSoftware/include/UDPBaseImplementation.h
index 19d6a932b..90aaf52b9 100644
--- a/slsReceiverSoftware/include/UDPBaseImplementation.h
+++ b/slsReceiverSoftware/include/UDPBaseImplementation.h
@@ -213,6 +213,7 @@ class UDPBaseImplementation : protected virtual slsReceiverDefs, public UDPInter
 	 * Set UDP Port Number
 	 */
 	void setUDPPortNo(int p);
+	void setUDPPortNo2(int p);
 
 	/*
 	 * Returns number of frames to receive
@@ -287,9 +288,9 @@ class UDPBaseImplementation : protected virtual slsReceiverDefs, public UDPInter
 	 * @param c pointer to current file name
 	 * @param raw address of pointer, pointing to current frame to send to gui
 	 * @param fnum frame number for eiger as it is not in the packet
+	 * @param fstartind is the start index of the acquisition
 	 */
-	void readFrame(char* c,char** raw, uint32_t &fnum);
-
+	void readFrame(char* c,char** raw, uint32_t &fnum, uint32_t &fstartind);
 	/**
 	 * Closes all files
 	 * @param ithr thread index
@@ -777,6 +778,8 @@ protected:
 	 * 2 we open, close, write file, callback does not do anything */
 	int cbAction;
 
+	/** true if bottom half module for eiger */
+	bool bottom;
 
 public:
 
diff --git a/slsReceiverSoftware/include/UDPInterface.h b/slsReceiverSoftware/include/UDPInterface.h
index 60d9cc75b..9ecf83fe6 100644
--- a/slsReceiverSoftware/include/UDPInterface.h
+++ b/slsReceiverSoftware/include/UDPInterface.h
@@ -281,6 +281,11 @@ class UDPInterface {
 	 */
 	virtual void setUDPPortNo(int p) = 0;
 
+	/**
+	 * Set UDP Port Number
+	 */
+	virtual void setUDPPortNo2(int p) = 0;
+
 	/**
 	 * Set Ethernet Interface or IP to listen to
 	 */
@@ -322,8 +327,9 @@ class UDPInterface {
 	 * @param c pointer to current file name
 	 * @param raw address of pointer, pointing to current frame to send to gui
 	 * @param fnum frame number for eiger as it is not in the packet
+	 * @param fstartind is the start index of the acquisition
 	 */
-	virtual void readFrame(char* c,char** raw, uint32_t &fnum) = 0;
+	virtual void readFrame(char* c,char** raw, uint32_t &fnum, uint32_t &fstartind ) = 0;
 
 	/** set status to transmitting and
 	 * when fifo is empty later, sets status to run_finished
diff --git a/slsReceiverSoftware/include/UDPRESTImplementation.h b/slsReceiverSoftware/include/UDPRESTImplementation.h
index 7cfe2b23d..6f59c30c2 100644
--- a/slsReceiverSoftware/include/UDPRESTImplementation.h
+++ b/slsReceiverSoftware/include/UDPRESTImplementation.h
@@ -223,6 +223,7 @@ class UDPRESTImplementation : protected virtual slsReceiverDefs, public UDPBaseI
 	 * Set UDP Port Number
 	 */
 	void setUDPPortNo(int p);
+	void setUDPPortNo2(int p);
 
 	/*
 	 * Returns number of frames to receive
@@ -300,7 +301,7 @@ class UDPRESTImplementation : protected virtual slsReceiverDefs, public UDPBaseI
 	 * @param raw address of pointer, pointing to current frame to send to gui
 	 * @param fnum frame number for eiger as it is not in the packet
 	 */
-	void readFrame(char* c,char** raw, uint32_t &fnum);
+	void readFrame(char* c,char** raw, uint32_t &fnum, uint32_t &fstartind);
 
 	/**
 	 * Closes all files
diff --git a/slsReceiverSoftware/include/UDPStandardImplementation.h b/slsReceiverSoftware/include/UDPStandardImplementation.h
index b6c25a144..6b5c0c0c4 100644
--- a/slsReceiverSoftware/include/UDPStandardImplementation.h
+++ b/slsReceiverSoftware/include/UDPStandardImplementation.h
@@ -212,6 +212,10 @@ class UDPStandardImplementation: private virtual slsReceiverDefs, public UDPBase
 	 * Set UDP Port Number
 	 */
 	void setUDPPortNo(int p);
+	/**
+	 * Set UDP Port Number
+	 */
+	void setUDPPortNo2(int p);
 
 	/*
 	 * Returns number of frames to receive
@@ -287,8 +291,7 @@ class UDPStandardImplementation: private virtual slsReceiverDefs, public UDPBase
 	 * @param raw address of pointer, pointing to current frame to send to gui
 	 * @param fnum frame number for eiger as it is not in the packet
 	 */
-	void readFrame(char* c,char** raw, uint32_t &fnum);
-
+	void readFrame(char* c,char** raw, uint32_t &fnum, uint32_t &fstartind);
 	/**
 	 * Closes all files
 	 * @param ithr thread index
diff --git a/slsReceiverSoftware/include/genericSocket.h b/slsReceiverSoftware/include/genericSocket.h
index bb899f35b..a798a0fef 100644
--- a/slsReceiverSoftware/include/genericSocket.h
+++ b/slsReceiverSoftware/include/genericSocket.h
@@ -61,6 +61,8 @@ class sockaddr_in;
 
 #endif
 
+#include <stdlib.h>  /******exit */
+
 #include <unistd.h>
 #include <string.h>
 #include <iostream>
@@ -558,6 +560,16 @@ enum communicationProtocol{
 	 break;
        case UDP:
 	 if (socketDescriptor<0) return -1;
+
+/*
+	 cout <<"******listening inside genericsocket"<<endl;
+	 for(int i=0;i<10000;i++){
+		 nsent = recvfrom(socketDescriptor,(char*)buf+total_sent,5000, 0, (struct sockaddr *) &clientAddress, &clientAddress_length);
+		cout<<i<<":"<<nsent<<"\t\t";
+	 }
+	exit(-1);
+*/
+
 	 //if length given, listens to length, else listens for packetsize till length is reached
 	 if(length){
 		 while(length>0){
diff --git a/slsReceiverSoftware/include/gitInfoReceiver.h b/slsReceiverSoftware/include/gitInfoReceiver.h
index 05f3c2ab6..967f26e15 100644
--- a/slsReceiverSoftware/include/gitInfoReceiver.h
+++ b/slsReceiverSoftware/include/gitInfoReceiver.h
@@ -1,11 +1,11 @@
 //#define SVNPATH ""
 #define SVNURL "git@gitorious.psi.ch:sls_det_software/sls_receiver_software.git"
 //#define SVNREPPATH ""
-#define SVNREPUUID "1c259aeba8b068b9f6e550d63a9a3a14bd7d3ab7"
-//#define SVNREV 0x6
+#define SVNREPUUID "e019a6ce7d96d4ac9cb5762b7137245aedb4d5b8"
+//#define SVNREV 0x22
 //#define SVNKIND ""
 //#define SVNSCHED ""
-#define SVNAUTH "Maliakal_Dhanya"
-#define SVNREV 0x6
-#define SVNDATE 0x20140603
+#define SVNAUTH "Anna_Bergamaschi"
+#define SVNREV 0x22
+#define SVNDATE 0x20141015
 //
diff --git a/slsReceiverSoftware/include/slsReceiverTCPIPInterface.h b/slsReceiverSoftware/include/slsReceiverTCPIPInterface.h
index adff81697..ea0e1a3d0 100644
--- a/slsReceiverSoftware/include/slsReceiverTCPIPInterface.h
+++ b/slsReceiverSoftware/include/slsReceiverTCPIPInterface.h
@@ -26,9 +26,11 @@ class slsReceiverTCPIPInterface : private virtual slsReceiverDefs {
 	 * @param succecc socket creation was successfull
 	 * @param rbase pointer to the receiver base
 	 * @param pn port number (defaults to default port number)
+	 * @param bot mode is bottom if true, else its a top half module
 	 */
-	slsReceiverTCPIPInterface(int &success, UDPInterface* rbase, int pn=-1);
-	
+
+  slsReceiverTCPIPInterface(int &success, UDPInterface* rbase, int pn=-1, bool bot=false);
+
 	/**
 	 * Sets the port number to listen to. 
 	 Take care that the client must know to whcih port it has to listen to, so normally it is better to use a fixes port from the instatiation or change it from the client.
@@ -272,6 +274,9 @@ private:
 	/** port number */
 	int portNumber;
 
+	/** true if bottom half module for eiger */
+	bool bottom;
+
 
 protected:
 	/** Socket */
diff --git a/slsReceiverSoftware/include/slsReceiverUDPFunctions.h b/slsReceiverSoftware/include/slsReceiverUDPFunctions.h
index 6adce30ad..e9ff00590 100644
--- a/slsReceiverSoftware/include/slsReceiverUDPFunctions.h
+++ b/slsReceiverSoftware/include/slsReceiverUDPFunctions.h
@@ -43,7 +43,7 @@ class slsReceiverUDPFunctions : private virtual slsReceiverDefs, public UDPInter
 	/**
 	 * Constructor
 	 */
-	slsReceiverUDPFunctions();
+	slsReceiverUDPFunctions(bool bot);
 
 	/**
 	 * Destructor
@@ -216,6 +216,11 @@ class slsReceiverUDPFunctions : private virtual slsReceiverDefs, public UDPInter
 	 */
 	void setUDPPortNo(int p);
 
+	/**
+	 * Set UDP Port Number2
+	 */
+	void setUDPPortNo2(int p);
+
 	/*
 	 * Returns number of frames to receive
 	 * This is the number of frames to expect to receiver from the detector.
@@ -289,8 +294,9 @@ class slsReceiverUDPFunctions : private virtual slsReceiverDefs, public UDPInter
 	 * @param c pointer to current file name
 	 * @param raw address of pointer, pointing to current frame to send to gui
 	 * @param fnum frame number for eiger as it is not in the packet
+	 * @param fstartind is the start index of the acquisition
 	 */
-	void readFrame(char* c,char** raw, uint32_t &fnum);
+	void readFrame(char* c,char** raw, uint32_t &fnum, uint32_t &fstartind);
 
 	/**
 	 * Closes all files
@@ -471,7 +477,6 @@ private:
 		unsigned char  header_after[24];
 	} eiger_image_header;
 
-
 	/** structure of an eiger image header*/
 	typedef struct
 	{
@@ -766,6 +771,9 @@ private:
 	 * 2 we open, close, write file, callback does not do anything */
 	int cbAction;
 
+	/** true if bottom half module for eiger */
+	bool bottom;
+
 
 public:
 
diff --git a/slsReceiverSoftware/include/sls_receiver_defs.h b/slsReceiverSoftware/include/sls_receiver_defs.h
index 70fc6ece8..f21579ae9 100755
--- a/slsReceiverSoftware/include/sls_receiver_defs.h
+++ b/slsReceiverSoftware/include/sls_receiver_defs.h
@@ -55,7 +55,9 @@ public:
 		GOTTHARD, /**< gotthard */
 		PICASSO, /**< picasso */
 		AGIPD, /**< agipd */
-		MOENCH /**< moench */
+		MOENCH, /**< moench */
+		JUNGFRAU, /**< jungfrau */
+		JUNGFRAUCTB /**< jungfrauCTBversion */
 	};
 
 
@@ -85,7 +87,9 @@ public:
 		MEASUREMENT_TIME,  /**< Time of the measurement from the detector (fifo) */
 
 		PROGRESS, /**< fraction of measurement elapsed - only get! */
-		MEASUREMENTS_NUMBER
+		MEASUREMENTS_NUMBER,
+		FRAMES_FROM_START,
+		FRAMES_FROM_START_PG
 	};
 
 
diff --git a/slsReceiverSoftware/include/sls_receiver_funcs.h b/slsReceiverSoftware/include/sls_receiver_funcs.h
index bb7655481..7f3842576 100644
--- a/slsReceiverSoftware/include/sls_receiver_funcs.h
+++ b/slsReceiverSoftware/include/sls_receiver_funcs.h
@@ -8,7 +8,7 @@
 
 enum {
 	//General functions
-	F_EXEC_RECEIVER_COMMAND=0, 		/**< command is executed */
+	F_EXEC_RECEIVER_COMMAND=128, 		/**< command is executed */
 	F_EXIT_RECEIVER, 				/**< turn off receiver server */
 	F_LOCK_RECEIVER, 				/**< Locks/Unlocks server communication to the given client */
 	F_GET_LAST_RECEIVER_CLIENT_IP,  /**< returns the IP of the client last connected to the receiver */
diff --git a/slsReceiverSoftware/src/UDPBaseImplementation.cpp b/slsReceiverSoftware/src/UDPBaseImplementation.cpp
index 42296fda4..351255df3 100644
--- a/slsReceiverSoftware/src/UDPBaseImplementation.cpp
+++ b/slsReceiverSoftware/src/UDPBaseImplementation.cpp
@@ -29,7 +29,8 @@ using namespace std;
 
 
 
-UDPBaseImplementation::UDPBaseImplementation(){}
+UDPBaseImplementation::UDPBaseImplementation(){
+}
 
 
 UDPBaseImplementation::~UDPBaseImplementation(){}
@@ -291,10 +292,13 @@ void UDPBaseImplementation::setEthernetInterface(char* c){ FILE_LOG(logDEBUG) <<
 }
 
 
-void UDPBaseImplementation::setUDPPortNo(int p){ FILE_LOG(logDEBUG) << __AT__ << " starting";
-	for(int i=0;i<numListeningThreads;i++){
-		server_port[i] = p+i;
-	}
+void UDPBaseImplementation::setUDPPortNo(int p){
+  server_port[0] = p;
+}
+
+
+void UDPBaseImplementation::setUDPPortNo2(int p){
+  server_port[1] = p;
 }
 
 
@@ -636,41 +640,43 @@ void UDPBaseImplementation::setupFifoStructure(){ FILE_LOG(logDEBUG) << __AT__ <
 
 
 /** acquisition functions */
-
-void UDPBaseImplementation::readFrame(char* c,char** raw, uint32_t &fnum){ FILE_LOG(logDEBUG) << __AT__ << " starting";
-	//point to gui data
-	if (guiData == NULL)
-		guiData = latestData;
-
-	//copy data and filename
-	strcpy(c,guiFileName);
-	fnum = guiFrameNumber;
-
-
-	//could not get gui data
-	if(!guiDataReady){
-		*raw = NULL;
-	}
-	//data ready, set guidata to receive new data
-	else{
-		*raw = guiData;
-		guiData = NULL;
-
-		pthread_mutex_lock(&dataReadyMutex);
-		guiDataReady = 0;
-		pthread_mutex_unlock(&dataReadyMutex);
-		if((nFrameToGui) && (writerthreads_mask)){
-		/*if(nFrameToGui){*/
-			//release after getting data
-			sem_post(&smp);
-		}
-	}
+void UDPBaseImplementation::readFrame(char* c,char** raw, uint32_t &fnum, uint32_t& fstartind){ 
+  FILE_LOG(logDEBUG) << __AT__ << " starting";
+  
+  //point to gui data
+  if (guiData == NULL)
+    guiData = latestData;
+  
+  //copy data and filename
+  strcpy(c,guiFileName);
+  fnum = guiFrameNumber;
+  fstartind = getStartFrameIndex();
+  
+  //could not get gui data
+  if(!guiDataReady){
+    *raw = NULL;
+  }
+  //data ready, set guidata to receive new data
+  else{
+    *raw = guiData;
+    guiData = NULL;
+    
+    pthread_mutex_lock(&dataReadyMutex);
+    guiDataReady = 0;
+    pthread_mutex_unlock(&dataReadyMutex);
+    if((nFrameToGui) && (writerthreads_mask)){
+      /*if(nFrameToGui){*/
+      //release after getting data
+      sem_post(&smp);
+    }
+  }
 }
 
 
 
 
 
+
 void UDPBaseImplementation::copyFrameToGui(char* startbuf[], uint32_t fnum, char* buf){ FILE_LOG(logDEBUG) << __AT__ << " starting";
 
 	//random read when gui not ready
diff --git a/slsReceiverSoftware/src/UDPInterface.cpp b/slsReceiverSoftware/src/UDPInterface.cpp
index d047a39b3..3d8ffb767 100644
--- a/slsReceiverSoftware/src/UDPInterface.cpp
+++ b/slsReceiverSoftware/src/UDPInterface.cpp
@@ -19,6 +19,7 @@ using namespace std;
 
 using namespace std;
 
+// TODO: I do not really like passing a bottom-top boolean to the constructor...
 UDPInterface * UDPInterface::create(string receiver_type){
 	
 	if (receiver_type == "standard"){
diff --git a/slsReceiverSoftware/src/UDPRESTImplementation.cpp b/slsReceiverSoftware/src/UDPRESTImplementation.cpp
index 291e021f8..fe6696058 100644
--- a/slsReceiverSoftware/src/UDPRESTImplementation.cpp
+++ b/slsReceiverSoftware/src/UDPRESTImplementation.cpp
@@ -38,6 +38,7 @@ using namespace std;
 UDPRESTImplementation::UDPRESTImplementation(){
 	FILE_LOG(logDEBUG) << __AT__ << " called";
 
+	//TODO I do not really know what to do with bottom...
 	// Default values
 	rest_hostname = "localhost";
 	rest_port = 8081;
@@ -294,13 +295,22 @@ void UDPRESTImplementation::setEthernetInterface(char* c){
 	//FILE_LOG(logDEBUG) << __FILE__ << "::" << __func__ << " done";
 }
 
-
+/*
 void UDPRESTImplementation::setUDPPortNo(int p){
 	FILE_LOG(logDEBUG) << __AT__ << " called";
 	for(int i=0;i<numListeningThreads;i++){
 		server_port[i] = p+i;
 	}
 }
+*/
+
+void UDPRESTImplementation::setUDPPortNo(int p){
+	server_port[0] = p;
+}
+
+void UDPRESTImplementation::setUDPPortNo2(int p){
+	server_port[1] = p;
+}
 
 /*
 int UDPRESTImplementation::getNumberOfFrames() const {
@@ -567,8 +577,7 @@ void UDPRESTImplementation::setupFifoStructure(){
 
 
 /** acquisition functions */
-
-void UDPRESTImplementation::readFrame(char* c,char** raw, uint32_t &fnum){
+void UDPRESTImplementation::readFrame(char* c,char** raw, uint32_t &fnum, uint32_t &fstartind){
 	FILE_LOG(logDEBUG) << __AT__ << " called";
 	//point to gui data
 	if (guiData == NULL)
@@ -577,7 +586,7 @@ void UDPRESTImplementation::readFrame(char* c,char** raw, uint32_t &fnum){
 	//copy data and filename
 	strcpy(c,guiFileName);
 	fnum = guiFrameNumber;
-
+	fstartind = getStartFrameIndex();
 
 	//could not get gui data
 	if(!guiDataReady){
diff --git a/slsReceiverSoftware/src/UDPStandardImplementation.cpp b/slsReceiverSoftware/src/UDPStandardImplementation.cpp
index b3e8aa098..3b6f4a654 100644
--- a/slsReceiverSoftware/src/UDPStandardImplementation.cpp
+++ b/slsReceiverSoftware/src/UDPStandardImplementation.cpp
@@ -24,10 +24,73 @@
 #include <string.h>
 #include <iostream>
 
-
-
 using namespace std;
 
+#define EIGER_32BIT_INITIAL_CONSTANT 0x17c
+
+
+
+
+UDPStandardImplementation::UDPStandardImplementation()
+//:
+//thread_started(0),
+//eth(NULL),
+//latestData(NULL),
+//guiFileName(NULL),
+//guiFrameNumber(0),
+//tengigaEnable(0)
+{
+	
+	thread_started = 0;
+	eth = NULL;
+	latestData = NULL;
+	guiFileName = NULL;
+	guiFrameNumber = NULL;
+	tengigaEnable = 0;
+	for(int i=0;i<MAX_NUM_LISTENING_THREADS;i++){
+		udpSocket[i] = NULL;
+		server_port[i] = DEFAULT_UDP_PORTNO+i;
+		mem0[i] = NULL;
+		fifo[i] = NULL;
+		fifoFree[i] = NULL;
+	}
+
+	for(int i=0;i<MAX_NUM_WRITER_THREADS;i++){
+		singlePhotonDet[i] = NULL;
+		receiverdata[i] = NULL;
+	}
+
+	startAcquisitionCallBack = NULL;
+	pStartAcquisition = NULL;
+	acquisitionFinishedCallBack = NULL;
+	pAcquisitionFinished = NULL;
+	rawDataReadyCallBack = NULL;
+	pRawDataReady = NULL;
+
+	initializeMembers();
+
+	//mutex
+	pthread_mutex_init(&dataReadyMutex,NULL);
+	pthread_mutex_init(&status_mutex,NULL);
+	pthread_mutex_init(&progress_mutex,NULL);
+	pthread_mutex_init(&write_mutex,NULL);
+
+	//to increase socket receiver buffer size and max length of input queue by changing kernel settings
+	if(system("echo $((100*1024*1024)) > /proc/sys/net/core/rmem_max"))
+	  cout << "\nWARNING: Could not change socket receiver buffer size in file /proc/sys/net/core/rmem_max" << endl;
+	else if(system("echo 250000 > /proc/sys/net/core/netdev_max_backlog"))
+	  cout << "\nWARNING: Could not change max length of input queue in file /proc/sys/net/core/netdev_max_backlog" << endl;
+	/** permanent setting heiner
+	    net.core.rmem_max = 104857600 # 100MiB
+	    net.core.netdev_max_backlog = 250000
+	    sysctl -p
+	    // from the manual
+	    sysctl -w net.core.rmem_max=16777216
+	    sysctl -w net.core.netdev_max_backlog=250000
+	*/
+		}
+
+
 void UDPStandardImplementation::initializeMembers(){
 	myDetectorType = GENERIC;
 	maxPacketsPerFile = 0;
@@ -125,63 +188,6 @@ void UDPStandardImplementation::initializeMembers(){
 }
 
 
-UDPStandardImplementation::UDPStandardImplementation(){ 	FILE_LOG(logDEBUG) << __AT__ << " called";
-
-
-	FILE_LOG(logDEBUG) << __FILE__ << "::" << __func__ << " starting" ;
-	
-	thread_started = 0;
-	eth = NULL;
-	latestData = NULL;
-	guiFileName = NULL;
-	guiFrameNumber = 0;
-	tengigaEnable = 0;
-
-	for(int i=0;i<MAX_NUM_LISTENING_THREADS;i++){
-		udpSocket[i] = NULL;
-		server_port[i] = DEFAULT_UDP_PORTNO+i;
-		mem0[i] = NULL;
-		fifo[i] = NULL;
-		fifoFree[i] = NULL;
-	}
-
-	for(int i=0;i<MAX_NUM_WRITER_THREADS;i++){
-		singlePhotonDet[i] = NULL;
-		receiverdata[i] = NULL;
-	}
-
-	startAcquisitionCallBack = NULL;
-	pStartAcquisition = NULL;
-	acquisitionFinishedCallBack = NULL;
-	pAcquisitionFinished = NULL;
-	rawDataReadyCallBack = NULL;
-	pRawDataReady = NULL;
-
-	UDPStandardImplementation::initializeMembers();
-
-	//mutex
-	pthread_mutex_init(&dataReadyMutex,NULL);
-	pthread_mutex_init(&status_mutex,NULL);
-	pthread_mutex_init(&progress_mutex,NULL);
-	pthread_mutex_init(&write_mutex,NULL);
-
-
-	//to increase socket receiver buffer size and max length of input queue by changing kernel settings
-	if(system("echo $((100*1024*1024)) > /proc/sys/net/core/rmem_max"))
-		cout << "\nWARNING: Could not change socket receiver buffer size in file /proc/sys/net/core/rmem_max" << endl;
-	else if(system("echo 250000 > /proc/sys/net/core/netdev_max_backlog"))
-		cout << "\nWARNING: Could not change max length of input queue in file /proc/sys/net/core/netdev_max_backlog" << endl;
-	/** permanent setting heiner
-	net.core.rmem_max = 104857600 # 100MiB
-	net.core.netdev_max_backlog = 250000
-	sysctl -p
-	// from the manual
-	sysctl -w net.core.rmem_max=16777216
-	sysctl -w net.core.netdev_max_backlog=250000
-	 */
-}
-
-
 
 UDPStandardImplementation::~UDPStandardImplementation(){ 	FILE_LOG(logDEBUG) << __AT__ << " called";
 
@@ -478,11 +484,15 @@ void UDPStandardImplementation::setEthernetInterface(char* c){ 	FILE_LOG(logDEBU
 }
 
 
-void UDPStandardImplementation::setUDPPortNo(int p){ 	FILE_LOG(logDEBUG) << __AT__ << " called";
+void UDPStandardImplementation::setUDPPortNo(int p){
+FILE_LOG(logDEBUG) << __AT__ << " called";
+	server_port[0] = p;
+}
 
-	for(int i=0;i<numListeningThreads;i++){
-		server_port[i] = p+i;
-	}
+
+void UDPStandardImplementation::setUDPPortNo2(int p){
+FILE_LOG(logDEBUG) << __AT__ << " called";
+	server_port[1] = p;
 }
 
 
@@ -835,10 +845,8 @@ void UDPStandardImplementation::setupFifoStructure(){
 
 
 /** acquisition functions */
-
-void UDPStandardImplementation::readFrame(char* c,char** raw, uint32_t &fnum){
+void UDPStandardImplementation::readFrame(char* c,char** raw, uint32_t &fnum, uint32_t &fstartind){
 	FILE_LOG(logDEBUG) << __AT__ << " called";
-
 	//point to gui data
 	if (guiData == NULL)
 		guiData = latestData;
@@ -846,7 +854,7 @@ void UDPStandardImplementation::readFrame(char* c,char** raw, uint32_t &fnum){
 	//copy data and filename
 	strcpy(c,guiFileName);
 	fnum = guiFrameNumber;
-
+	fstartind = getStartFrameIndex();
 
 	//could not get gui data
 	if(!guiDataReady){
@@ -932,7 +940,17 @@ void UDPStandardImplementation::copyFrameToGui(char* startbuf[], uint32_t fnum,
 int UDPStandardImplementation::createUDPSockets(){
 	FILE_LOG(logDEBUG) << __AT__ << " called";
 
+	int port[2];
+	port[0] = server_port[0];
+	port[1] = server_port[1];
 
+	/** eiger specific */
+	/*
+	if(bottom){
+		port[0] = server_port[1];
+		port[1] = server_port[0];
+	}
+	*/
 	//if eth is mistaken with ip address
 	if (strchr(eth,'.')!=NULL)
 		strcpy(eth,"");
@@ -944,23 +962,25 @@ int UDPStandardImplementation::createUDPSockets(){
 		cout<<"warning:eth is empty.listening to all"<<endl;
 
 		for(int i=0;i<numListeningThreads;i++)
-			udpSocket[i] = new genericSocket(server_port[i],genericSocket::UDP,bufferSize);
+			udpSocket[i] = new genericSocket(port[i],genericSocket::UDP,bufferSize);
 	}
 	//normal socket
 	else{
 		cout<<"eth:"<<eth<<endl;
 
 		for(int i=0;i<numListeningThreads;i++)
-			udpSocket[i] = new genericSocket(server_port[i],genericSocket::UDP,bufferSize,eth);
+			udpSocket[i] = new genericSocket(port[i],genericSocket::UDP,bufferSize,eth);
 	}
 
 	//error
 	int iret;
 	for(int i=0;i<numListeningThreads;i++){
 		iret = udpSocket[i]->getErrorStatus();
-		if(iret){
+		if(!iret)
+			cout << "UDP port opened at port " << port[i] << endl;
+		else{
 #ifdef VERBOSE
-			cout << "Could not create UDP socket on port " << server_port[i]  << " error:" << iret << endl;
+			cout << "Could not create UDP socket on port " << port[i]  << " error:" << iret << endl;
 #endif
 			return FAIL;
 		}
@@ -1418,7 +1438,7 @@ int UDPStandardImplementation::startReceiver(char message[]){
 		cout << endl << message << endl;
 		return FAIL;
 	}
-	cout << "UDP socket(s) created successfully. 1st  port " << server_port[0] << endl;
+	cout << "UDP socket(s) created successfully." << endl;
 
 
 	if(setupWriter() == FAIL){
@@ -1589,9 +1609,13 @@ int UDPStandardImplementation::startListening(){
 			//normal listening
 			else if(!carryonBufferSize){
 
+			/*	if(!ithread){*/
 				rc = udpSocket[ithread]->ReceiveDataOnly(buffer[ithread] + HEADER_SIZE_NUM_TOT_PACKETS, maxBufferSize);
 				expected = maxBufferSize;
-
+				/*}else{
+					while(1) usleep(100000000);
+				}
+*/
 			}
 			//the remaining packets from previous buffer
 			else{
@@ -1608,24 +1632,26 @@ int UDPStandardImplementation::startListening(){
 				expected = maxBufferSize - carryonBufferSize;
 			}
 
-#ifdef VERYDEBUG
+//#ifdef VERYDEBUG
 			cout << ithread << " *** rc:" << dec << rc << ". expected:" << dec << expected << endl;
-#endif
-
-
+//#endif
 
 
 			//start indices for each start of scan/acquisition - eiger does it before
-			if((!measurementStarted) && (rc > 0) && (!ithread))
-				startFrameIndices(ithread);
+				if((!measurementStarted) && (rc > 0) && (!ithread))
+					startFrameIndices(ithread);
+
 
 			//problem in receiving or end of acquisition
 			if((rc < expected)||(rc <= 0)){
 				stopListening(ithread,rc,packetcount,total);
 				continue;
 			}
-
-
+/*
+			//start indices for each start of scan/acquisition - eiger does it before
+			if((!measurementStarted) && (rc > 0) && (!ithread))
+				startFrameIndices(ithread);
+*/
 
 			//reset
 			packetcount = (packetsPerFrame/numListeningThreads) * numJobsPerThread;
@@ -1811,7 +1837,10 @@ int loop;
 			//for progress
 			if(myDetectorType == EIGER){
 				tempframenum = htonl(*(unsigned int*)((eiger_image_header *)((char*)(wbuf[ithread] + HEADER_SIZE_NUM_TOT_PACKETS)))->fnum);
-				tempframenum += (startFrameIndex-1); //eiger frame numbers start at 1, so need to -1
+				if(dynamicRange != 32)
+					tempframenum += (startFrameIndex-1); //eiger frame numbers start at 1, so need to -1
+				else
+					tempframenum = ((tempframenum / EIGER_32BIT_INITIAL_CONSTANT) + startFrameIndex)-1;//eiger 32 bit mode is a multiple of 17c. +startframeindex for scans
 			}else if ((myDetectorType == GOTTHARD) && (shortFrame == -1))
 				tempframenum = (((((uint32_t)(*((uint32_t*)(wbuf[ithread] + HEADER_SIZE_NUM_TOT_PACKETS))))+1)& (frameIndexMask)) >> frameIndexOffset);
 			else
@@ -1836,6 +1865,7 @@ int loop;
 
 				if (cbAction < DO_EVERYTHING){
 					for(i=0;i<numListeningThreads;++i)
+						/* for eiger 32 bit mode, currframenum like gotthard, does not start from 0 or 1 */
 						rawDataReadyCallBack(currframenum, wbuf[i], numpackets * onePacketSize, sfilefd, guiData,pRawDataReady);
 				}else if (numpackets > 0){
 					for(i=0;i<numListeningThreads;++i)
@@ -1957,8 +1987,13 @@ void UDPStandardImplementation::startFrameIndices(int ithread){
 		cout << "startAcquisitionIndex:" << startAcquisitionIndex<<endl;
 	}
 	//for scans, cuz currfraenum resets
-	else if (myDetectorType == EIGER)
-		startFrameIndex += currframenum;
+	else if (myDetectorType == EIGER){
+		if(dynamicRange == 32)
+			startFrameIndex = (currframenum + 1);// to be added later for scans
+		else
+			startFrameIndex += currframenum;
+
+	}
 
 
 	cout << "startFrameIndex:" << startFrameIndex<<endl;
@@ -2019,9 +2054,9 @@ int i;
 #endif
 				pthread_mutex_unlock(&(status_mutex));
 
-#ifdef VERYDEBUG
+//#ifdef VERYDEBUG
 				cout << ithread << ": Frames listened to " << dec << ((totalListeningFrameCount[ithread]*numListeningThreads)/packetsPerFrame) << endl;
-#endif
+//#endif
 
 				//waiting for all listening threads to be done, to print final count of frames listened to
 				if(ithread == 0){
diff --git a/slsReceiverSoftware/src/slsReceiver.cpp b/slsReceiverSoftware/src/slsReceiver.cpp
index fcb0bb101..595a39868 100644
--- a/slsReceiverSoftware/src/slsReceiver.cpp
+++ b/slsReceiverSoftware/src/slsReceiver.cpp
@@ -37,12 +37,14 @@ slsReceiver::slsReceiver(int argc, char *argv[], int &success){
 	string udp_interface_type = "standard";
 	string rest_hostname = "localhost:8081";
 
+	bool bottom = false; //TODO: properly set new parameter -> mode?
 	//parse command line for config
 	static struct option long_options[] = {
 		/* These options set a flag. */
 		//{"verbose", no_argument,       &verbose_flag, 1},
 		/* These options don’t set a flag.
 		   We distinguish them by their indices. */
+		{"mode",     required_argument,       0, 'm'},
 		{"type",     required_argument,       0, 't'},
 		{"config",     required_argument,       0, 'f'},
 		{"rx_tcpport",  required_argument,       0, 'b'},
@@ -55,13 +57,14 @@ slsReceiver::slsReceiver(int argc, char *argv[], int &success){
 	int c;
 
 	while ( c != -1 ){
-		c = getopt_long (argc, argv, "bfhtr", long_options, &option_index);
+		c = getopt_long (argc, argv, "mbfhtr", long_options, &option_index);
 		
 		/* Detect the end of the options. */
 		if (c == -1)
 			break;
 	
 		switch(c){
+
 		case 'f':
 			fname = optarg;
 			//cout << long_options[option_index].name << " " << optarg << endl;
@@ -83,6 +86,7 @@ slsReceiver::slsReceiver(int argc, char *argv[], int &success){
 			string help_message = """\nSLS Receiver Server\n\n""";
 			help_message += """usage: slsReceiver --config config_fname [--rx_tcpport port]\n\n""";
 			help_message += """\t--config:\t configuration filename for SLS Detector receiver\n""";
+			help_message += """\t--mode:\t ???\n""";
 			help_message += """\t--rx_tcpport:\t TCP Communication Port with the client. Default: 1954.\n\n""";
 			help_message += """\t--rest_hostname:\t Receiver hostname:port. It applies only to REST receivers, and indicates the hostname of the REST backend. Default: localhost:8081.\n\n""";
 
diff --git a/slsReceiverSoftware/src/slsReceiverTCPIPInterface.cpp b/slsReceiverSoftware/src/slsReceiverTCPIPInterface.cpp
index fc770729b..20c95a051 100644
--- a/slsReceiverSoftware/src/slsReceiverTCPIPInterface.cpp
+++ b/slsReceiverSoftware/src/slsReceiverTCPIPInterface.cpp
@@ -17,6 +17,9 @@
 #include <sstream>
 #include <fstream>
 #include <stdlib.h>
+#include <byteswap.h> //linux5
+#define be64toh(x) __bswap_64 (x) //linux5
+//#include <endian.h> //linux6
 using namespace std;
 
 
@@ -27,27 +30,27 @@ slsReceiverTCPIPInterface::~slsReceiverTCPIPInterface() {
 	closeFile(0);
 }
 
+slsReceiverTCPIPInterface::slsReceiverTCPIPInterface(int &success, UDPInterface* rbase, int pn, bool bot):
+		myDetectorType(GOTTHARD),
+		receiverBase(rbase),
+		ret(OK),
+		lockStatus(0),
+		shortFrame(-1),
+		packetsPerFrame(GOTTHARD_PACKETS_PER_FRAME),
+		dynamicrange(16),
+		socket(NULL),
+		killTCPServerThread(0),
+		tenGigaEnable(0), portNumber(DEFAULT_PORTNO+2),
+		bottom(bot){
+
+  int port_no=portNumber;
+
+
+  if (pn>0)
+    port_no = pn;
+
+  success=OK;
 
-slsReceiverTCPIPInterface::slsReceiverTCPIPInterface(int &success, UDPInterface* rbase, int pn):
-	myDetectorType(GOTTHARD),
-	receiverBase(rbase),
-	ret(OK),
-	lockStatus(0),
-	shortFrame(-1),
-	packetsPerFrame(GOTTHARD_PACKETS_PER_FRAME),
-	dynamicrange(16),
-	socket(NULL),
-	killTCPServerThread(0),
-	tenGigaEnable(0), portNumber(DEFAULT_PORTNO+2){
-	
-	int port_no=portNumber;
-	
-	
-	if (pn>0)
-		port_no = pn;
-	
-	success=OK;
-	
 	//create socket
 	if(success == OK){
 		socket = new MySocketTCP(port_no);
@@ -615,10 +618,10 @@ int slsReceiverTCPIPInterface::setup_udp(){
 	ret=OK;
 	strcpy(mess,"could not set up udp connection");
 	char retval[MAX_STR_LENGTH]="";
-	char args[2][MAX_STR_LENGTH];
+	char args[3][MAX_STR_LENGTH];
 
 	string temp;
-	int udpport;
+	int udpport,udpport2;
 	char eth[MAX_STR_LENGTH];
 
 
@@ -643,8 +646,9 @@ int slsReceiverTCPIPInterface::setup_udp(){
 		else{
 			//set up udp port
 			 sscanf(args[1],"%d",&udpport);
+			 sscanf(args[2],"%d",&udpport2);
 			 receiverBase->setUDPPortNo(udpport);
-
+			 receiverBase->setUDPPortNo2(udpport2);
 			 //setup udpip
 			 //get ethernet interface or IP to listen to
 			 temp = genericSocket::ipToName(args[0]);
@@ -1002,8 +1006,8 @@ int	slsReceiverTCPIPInterface::moench_read_frame(){
 
 	else{
 		ret = OK;
-		startIndex=receiverBase->getStartFrameIndex();
-		receiverBase->readFrame(fName,&raw,index);
+		/*startIndex=receiverBase->getStartFrameIndex();*/
+		receiverBase->readFrame(fName,&raw,index,startIndex);
 
 		/**send garbage with -1 index to try again*/
 		if (raw == NULL){
@@ -1172,8 +1176,8 @@ int	slsReceiverTCPIPInterface::gotthard_read_frame(){
 		cout<<"haven't caught any frame yet"<<endl;
 	}else{
 		ret = OK;
-		startIndex=receiverBase->getStartFrameIndex();
-		receiverBase->readFrame(fName,&raw,index);
+		/*startIndex=receiverBase->getStartFrameIndex();*/
+		receiverBase->readFrame(fName,&raw,index,startIndex);
 
 		/**send garbage with -1 index to try again*/
 		if (raw == NULL){
@@ -1304,13 +1308,9 @@ int	slsReceiverTCPIPInterface::eiger_read_frame(){
 	char* raw 		= new char[frameSize];
 	char* origVal 	= new char[frameSize];
 	char* retval 	= new char[dataSize];
-
+	uint32_t startIndex=0;
 	strcpy(mess,"Could not read frame\n");
 
-/*	typedef struct{
-		unsigned char num1[4];
-		unsigned char num2[4];
-	} eiger_packet_header;*/
 
 	// execute action if the arguments correctly arrived
 #ifdef SLS_RECEIVER_UDP_FUNCTIONS
@@ -1328,7 +1328,7 @@ int	slsReceiverTCPIPInterface::eiger_read_frame(){
 	else{
 		ret = OK;
 		/** read a frame */
-		receiverBase->readFrame(fName,&raw, index);
+		receiverBase->readFrame(fName,&raw,index,startIndex);
 #ifdef VERBOSE
 		cout << "index:" << dec << index << endl;
 #endif
@@ -1341,7 +1341,7 @@ int	slsReceiverTCPIPInterface::eiger_read_frame(){
 		}
 
 		/**proper frame*/
-		else{
+		else{//cout<<"**** got proper frame ******"<<endl;
 
 			memcpy(origVal,raw,frameSize);
 			raw=NULL;
@@ -1349,12 +1349,11 @@ int	slsReceiverTCPIPInterface::eiger_read_frame(){
 			int c1=8;//first port
 			int c2=(frameSize/2) + 8; //second port
 			int retindex=0;
-			int irow,ibytesperpacket,irepeat;
-			int repeat=1;
+			int irow,ibytesperpacket;
 			int linesperpacket = (16/dynamicrange)* 1;// 16:1 line, 8:2 lines, 4:4 lines, 32: 0.5
 			int numbytesperlineperport=(EIGER_PIXELS_IN_ONE_ROW/EIGER_MAX_PORTS)*dynamicrange/8;//16:1024,8:512,4:256,32:2048
 			int datapacketlength = EIGER_ONE_GIGA_ONE_DATA_SIZE;
-
+			int total_num_bytes = 1040*(16*dynamicrange)*2;
 
 			if(tenGigaEnable){
 				linesperpacket = (16/dynamicrange)* 4;// 16:4 line, 8:8 lines, 4:16 lines, 32: 2
@@ -1362,51 +1361,108 @@ int	slsReceiverTCPIPInterface::eiger_read_frame(){
 			}
 			//if 1GbE, one line is split into two packets for 32 bit mode, so its special
 			else if(dynamicrange == 32){
-				repeat=2;
 				numbytesperlineperport = 1024;
 				linesperpacket = 1; //we repeat this twice anyway for 32 bit
 			}
 
+			if(!bottom){
 
-			for(irow=0;irow<EIGER_PIXELS_IN_ONE_COL/linesperpacket;++irow){
-				ibytesperpacket=0;
-				while(ibytesperpacket<datapacketlength){
-					for(irepeat=0;irepeat<repeat;irepeat++){//only for 32 bit mode, take 2 packets from same port
+				for(irow=0;irow<EIGER_PIXELS_IN_ONE_COL/linesperpacket;++irow){
+					ibytesperpacket=0;
+					while(ibytesperpacket<datapacketlength){
+						//first port
 						memcpy(retval+retindex ,origVal+c1 ,numbytesperlineperport);
 						retindex += numbytesperlineperport;
 						c1 += numbytesperlineperport;
-					}
-					for(irepeat=0;irepeat<repeat;irepeat++){//only for 32 bit mode, take 2 packets from same port
+						if(dynamicrange == 32){
+							c1 += 16;
+							memcpy(retval+retindex ,origVal+c1 ,numbytesperlineperport);
+							retindex += numbytesperlineperport;
+							c1 += numbytesperlineperport;
+							c1 += 16;
+						}
+						//second port
 						memcpy(retval+retindex ,origVal+c2 ,numbytesperlineperport);
 						retindex += numbytesperlineperport;
 						c2 += numbytesperlineperport;
+						if(dynamicrange == 32){
+							c2 += 16;
+							memcpy(retval+retindex ,origVal+c2 ,numbytesperlineperport);
+							retindex += numbytesperlineperport;
+							c2 += numbytesperlineperport;
+							c2 += 16;
+						}
+						ibytesperpacket += numbytesperlineperport;
+					}
+					if(dynamicrange != 32) {
+						c1 += 16;
+						c2 += 16;
 					}
-					ibytesperpacket += numbytesperlineperport;
 				}
-				c1 += 16;
-				c2 += 16;
+
+		}
+
+			//bottom half module
+
+			else{
+				c1 = (frameSize/2) - numbytesperlineperport - 8 ;
+				c2 = total_num_bytes - numbytesperlineperport - 8;
+
+				for(irow=0;irow<EIGER_PIXELS_IN_ONE_COL/linesperpacket;++irow){
+					ibytesperpacket=0;
+					while(ibytesperpacket<datapacketlength){
+						if(dynamicrange == 32){
+							//first port first chip
+							c1 -= (numbytesperlineperport + 16);
+							memcpy(retval+retindex ,origVal+c1 ,numbytesperlineperport);
+							retindex += numbytesperlineperport;
+							//first port second chip
+							c1 += (numbytesperlineperport+16);
+							memcpy(retval+retindex ,origVal+c1 ,numbytesperlineperport);
+							retindex += numbytesperlineperport;
+							c1 -= (numbytesperlineperport*2+32);//1024*2+16*2
+							//second port first chip
+							c2 -= (numbytesperlineperport + 16);
+							memcpy(retval+retindex ,origVal+c2 ,numbytesperlineperport);
+							retindex += numbytesperlineperport;
+							//second port second chip
+							c2 += (numbytesperlineperport + 16);
+							memcpy(retval+retindex ,origVal+c2 ,numbytesperlineperport);
+							retindex += numbytesperlineperport;
+							c2 -= (numbytesperlineperport*2+32);
+						}else{
+							//first port
+							memcpy(retval+retindex ,origVal+c1 ,numbytesperlineperport);
+							retindex += numbytesperlineperport;
+							c1 -= numbytesperlineperport;
+							//second port
+							memcpy(retval+retindex ,origVal+c2 ,numbytesperlineperport);
+							retindex += numbytesperlineperport;
+							c2 -= numbytesperlineperport;
+						}
+						ibytesperpacket += numbytesperlineperport;
+					}
+					if(dynamicrange != 32) {
+						c1 -= 16;
+						c2 -= 16;
+					}
+				}
+
 			}
 
-
-			int64_t temp;
+			//64 bit htonl cuz of endianness
 			for(i=0;i<(1024*(16*dynamicrange)*2)/8;i++){
+				(*(((uint64_t*)retval)+i)) = be64toh(((uint64_t)(*(((uint64_t*)retval)+i))));
+			 /*
+			  int64_t temp;
 			  temp = ((uint64_t)(*(((uint64_t*)retval)+i)));
 			  temp = ((temp << 8) & 0xFF00FF00FF00FF00ULL ) | ((temp >> 8) & 0x00FF00FF00FF00FFULL );
 			  temp = ((temp << 16) & 0xFFFF0000FFFF0000ULL ) | ((temp >> 16) & 0x0000FFFF0000FFFFULL );
 			  temp =  (temp << 32) | ((temp >> 32) & 0xFFFFFFFFULL);
 			  (*(((uint64_t*)retval)+i)) = temp;
+			  */
 			}
-/*
-				 ( (((val) >> 56) & 0x00000000000000FF) | (((val) >> 40) & 0x000000000000FF00) | \
-				   (((val) >> 24) & 0x0000000000FF0000) | (((val) >>  8) & 0x00000000FF000000) | \
-				   (((val) <<  8) & 0x000000FF00000000) | (((val) << 24) & 0x0000FF0000000000) | \
-				   (((val) << 40) & 0x00FF000000000000) | (((val) << 56) & 0xFF00000000000000) )
-			*/
-			/*
-			for(i=0;i<(1024*(16*dynamicrange)*2)/4;i++)
-				                (*(((uint32_t*)retval)+i)) = htonl((uint32_t)(*(((uint32_t*)retval)+i)));
-			*/
-			arg = index-1;
+			arg = index-startIndex;
 		}
 	}