diff --git a/slsDetectorSoftware/jungfrauDetectorServer/slsDetectorServer_defs.h b/slsDetectorSoftware/jungfrauDetectorServer/slsDetectorServer_defs.h
index bdc3b2f46..e98896d43 100644
--- a/slsDetectorSoftware/jungfrauDetectorServer/slsDetectorServer_defs.h
+++ b/slsDetectorSoftware/jungfrauDetectorServer/slsDetectorServer_defs.h
@@ -8,6 +8,7 @@
 
 
 #define GOODBYE 					(-200)
+#define PROGRAMMING_MODE			(-200)
 #define MIN_REQRD_VRSN_T_RD_API     0x171220
 #define REQRD_FRMWR_VRSN            0x180226
 
diff --git a/slsDetectorSoftware/slsDetector/slsDetector.cpp b/slsDetectorSoftware/slsDetector/slsDetector.cpp
index 39b7d564b..0999df2aa 100644
--- a/slsDetectorSoftware/slsDetector/slsDetector.cpp
+++ b/slsDetectorSoftware/slsDetector/slsDetector.cpp
@@ -7834,6 +7834,7 @@ int slsDetector::programFPGA(string fname){
 				updateDetector();
 		}
 
+
 		//remapping stop server
 		fnum=F_RESET_FPGA;
 		int stopret;
diff --git a/slsDetectorSoftware/slsDetectorServer/programfpga.h b/slsDetectorSoftware/slsDetectorServer/programfpga.h
index db7b1cfb8..6b0b2f35a 100755
--- a/slsDetectorSoftware/slsDetectorServer/programfpga.h
+++ b/slsDetectorSoftware/slsDetectorServer/programfpga.h
@@ -11,7 +11,8 @@
 /* global variables */
 #define CTRL_SRVR_INIT_TIME_US		(300 * 1000)
 int gpioDefined=0;
-char mtdvalue[10];
+#define MTDSIZE 10
+char mtdvalue[MTDSIZE];
 
 
 
@@ -85,9 +86,12 @@ int startWritingFPGAprogram(FILE** filefp){
 
 	//getting the drive
 	char output[255];
+	memset(output, 0, 255);
 	FILE* fp = popen("awk \'$4== \"\\\"bitfile(spi)\\\"\" {print $1}\' /proc/mtd", "r");
 	fgets(output, sizeof(output), fp);
 	pclose(fp);
+	//cprintf(RED,"output: %s\n", output);
+	memset(mtdvalue, 0, MTDSIZE);
 	strcpy(mtdvalue,"/dev/");
 	char* pch = strtok(output,":");
 	if(pch == NULL){
@@ -161,12 +165,12 @@ int writeFPGAProgram(char* fpgasrc, size_t fsize, FILE* filefp){
 #ifdef VERY_VERBOSE
 	printf("\nWriting of FPGA Program\n");
 	cprintf(BLUE,"address of fpgasrc:%p\n",(void *)fpgasrc);
-	cprintf(BLUE,"fsize:%d\n",fsize);
+	cprintf(BLUE,"fsize:%lu\n",fsize);
 	cprintf(BLUE,"pointer:%p\n",(void*)filefp);
 #endif
 
 	if(fwrite((void*)fpgasrc , sizeof(char) , fsize , filefp )!= fsize){
-		cprintf(RED,"Could not write FPGA source to flash\n");
+		cprintf(RED,"Could not write FPGA source to flash (size:%lu)\n", fsize);
 		return 1;
 	}
 #ifdef VERY_VERBOSE
diff --git a/slsDetectorSoftware/slsDetectorServer/slsDetectorServer.c b/slsDetectorSoftware/slsDetectorServer/slsDetectorServer.c
index c11201893..5aac57d39 100755
--- a/slsDetectorSoftware/slsDetectorServer/slsDetectorServer.c
+++ b/slsDetectorSoftware/slsDetectorServer/slsDetectorServer.c
@@ -24,51 +24,69 @@ int main(int argc, char *argv[]){
 	int retval=OK;
 	int sd, fd;
 	int debugflag = 0;
+	int controlserver = 1;
 
 	// if socket crash, ignores SISPIPE, prevents global signal handler
 	// subsequent read/write to socket gives error - must handle locally
 	signal(SIGPIPE, SIG_IGN);
 
     // circumvent the basic tests
-    if(argc > 1) {
-        if(!strcasecmp(argv[1],"-debug")){
-            debugflag = 1;
-            argc=1;
-        }
-    }
+	{
+		int i;
+		for (i = 1; i < argc; ++i) {
+			if(!strcasecmp(argv[i],"-stopserver")) {
+				cprintf(BLUE,"detected stop server\n");
+				controlserver = 0;
+			}
+			else if(!strcasecmp(argv[i],"-debug")){
+				cprintf(BLUE,"detected debug mode\n");
+				debugflag = 1;
+			}
+#ifdef JUNGFRAUD
+			else if(!strcasecmp(argv[i],"-programming")){
+				cprintf(BLUE,"detected programming mode\n");
+				debugflag = PROGRAMMING_MODE;
+			}
+#endif
+			else if(strchr(argv[i],'-') != NULL) {
+				cprintf(RED,"cannot scan program argument %s\n", argv[1]);
+				return -1;
+			}
+		}
+	}
 
 #ifdef STOP_SERVER
 	char cmd[100];
+	memset(cmd, 0, 100);
 #endif
-	if (argc==1) {
+	if (controlserver) {
 		portno = DEFAULT_PORTNO;
 		cprintf(BLUE,
 		"********************************************************\n"
 		"********* opening control server on port %d **********\n"
 		"********************************************************\n\n"
 		, portno);
-		b=1;
-		basictests(debugflag);
 #ifdef STOP_SERVER
-		sprintf(cmd,"%s %d &",argv[0],DEFAULT_PORTNO+1);
-		//cprintf(BLUE,"cmd:%s\n", cmd);
-		system(cmd);
+		{
+			int i;
+			for (i = 0; i < argc; ++i)
+				sprintf(cmd, "%s %s", cmd, argv[i]);
+			sprintf(cmd,"%s -stopserver&", cmd);
+			cprintf(BLUE,"cmd:%s\n", cmd);
+			system(cmd);
+		}
 #endif
 	} else {
 		portno = DEFAULT_PORTNO+1;
-		if ( sscanf(argv[1],"%d",&portno) == 0) {
-			printf("could not open stop server: unknown port\n");
-			return 1;
-		}
 		cprintf(BLUE,
 		"********************************************************\n"
 		"*********** opening stop server on port %d ***********\n"
 		"********************************************************\n\n"
 		, portno);
-		b=0;
 	}
 
-	init_detector(b); //defined in slsDetectorServer_funcs
+	setModeFlag(debugflag); //defined in slsDetectorServer_funcs
+	init_detector(controlserver); //defined in slsDetectorServer_funcs
 
 	sd=bindSocket(portno); //defined in communication_funcs
 	sockfd=sd;
diff --git a/slsDetectorSoftware/slsDetectorServer/slsDetectorServer_funcs.c b/slsDetectorSoftware/slsDetectorServer/slsDetectorServer_funcs.c
index b7b319a8e..7721d3434 100755
--- a/slsDetectorSoftware/slsDetectorServer/slsDetectorServer_funcs.c
+++ b/slsDetectorSoftware/slsDetectorServer/slsDetectorServer_funcs.c
@@ -52,8 +52,11 @@ int printSocketReadError() {
 	return FAIL;
 }
 
-void basictests(int flag) {
+void setModeFlag(int flag) {
     debugflag = flag;
+}
+
+void basictests() {
 #ifdef	SLS_DETECTOR_FUNCTION_LIST
 	checkFirmwareCompatibility(debugflag);
 #endif
@@ -68,6 +71,10 @@ void init_detector(int controlserver) {
 #ifdef SLS_DETECTOR_FUNCTION_LIST
 	if (controlserver) {
 	    isControlServer = 1;
+	    basictests();
+#ifdef JUNGFRAUD
+	    if (debugflag != PROGRAMMING_MODE)
+#endif
 		initControlServer();
 #ifdef EIGERD
 		dhcpipad = getDetectorIP();
@@ -102,6 +109,14 @@ int decode_function(int file_des) {
 
 #ifdef VERBOSE
 	printf(" calling function fnum=%d, (%s) located at 0x%x\n", fnum,  getFunctionName((enum detFuncs)fnum), (unsigned int)flist[fnum]);
+#endif
+#ifdef JUNGFRAUD
+	if ((debugflag == PROGRAMMING_MODE) &&
+			((fnum != F_PROGRAM_FPGA) && (fnum != F_GET_DETECTOR_TYPE) &&
+					(fnum != F_RESET_FPGA) && (fnum != F_UPDATE_CLIENT))) {
+		sprintf(mess,"This Function %s cannot be executed. ", getFunctionName((enum detFuncs)fnum));
+		ret=(M_nofuncMode)(file_des);
+	} else
 #endif
 	if (fnum<0 || fnum>=NUM_DET_FUNCTIONS) {
 		cprintf(BG_RED,"Unknown function enum %d\n", fnum);
@@ -315,6 +330,21 @@ int  M_nofunc(int file_des){
 
 
 
+int  M_nofuncMode(int file_des){
+	int ret=FAIL,ret1=FAIL;
+	int n=0;
+	//to receive any arguments
+	while (n > 0)
+		n = receiveData(file_des,mess,MAX_STR_LENGTH,OTHER);
+
+	strcat(mess, "On-board detector server in programming mode. Restart detector server in normal mode (without any arguments).\n");
+	cprintf(BG_RED,"Error: %s",mess);
+	n = sendData(file_des,&ret1,sizeof(ret1),INT32);
+	n = sendData(file_des,mess,sizeof(mess),OTHER); // mess is defined at function call
+
+	// return ok / fail
+	return ret;
+}
 
 
 
@@ -4924,7 +4954,7 @@ int program_fpga(int file_des) {
 	int ret=OK,ret1=OK;
 	int n=0;
 	sprintf(mess,"program FPGA failed\n");
-
+	printf("Programming FPGA...")
 
 #ifndef JUNGFRAUD
 	//to receive any arguments
@@ -4987,10 +5017,10 @@ int program_fpga(int file_des) {
 			unitprogramsize = MAX_FPGAPROGRAMSIZE;  //2mb
 			if(unitprogramsize > filesize) //less than 2mb
 				unitprogramsize = filesize;
-	#ifdef VERY_VERBOSE
+#ifdef VERY_VERBOSE
 			printf("unit size to receive is:%d\n",unitprogramsize);
 			printf("filesize:%d currentpointer:%d\n",filesize,currentPointer);
-	#endif
+#endif
 
 			//receive
 			n = receiveData(file_des,fpgasrc,unitprogramsize,OTHER);
@@ -5035,15 +5065,16 @@ int program_fpga(int file_des) {
 		if(fp!=NULL)
 			fclose(fp);
 #ifdef VERY_VERBOSE
-	printf("Done with program receiving command\n");
+		printf("Done with program receiving command\n");
 #endif
-    if (isControlServer)
-        basictests(debugflag);
-    init_detector(isControlServer);
+
+		if (isControlServer)
+			basictests(debugflag);
+		init_detector(isControlServer);
 	}
 #endif
-		if (ret==OK)
-			ret=FORCE_UPDATE;
+	if (ret==OK)
+		ret=FORCE_UPDATE;
 #endif
 
 	// ret could be swapped during sendData
@@ -5085,9 +5116,13 @@ int reset_fpga(int file_des) {
 	}
 #ifdef SLS_DETECTOR_FUNCTION_LIST
 	else {
-	    if (isControlServer)
+	    if (isControlServer) {
 	        basictests(debugflag);
-		initControlServer(isControlServer);
+#ifdef JUNGFRAUD
+	    if (debugflag != PROGRAMMING_MODE)
+#endif
+	    	initControlServer();
+	    }
 		ret = FORCE_UPDATE;
 	}
 #endif
diff --git a/slsDetectorSoftware/slsDetectorServer/slsDetectorServer_funcs.h b/slsDetectorSoftware/slsDetectorServer/slsDetectorServer_funcs.h
index 15002636f..b80a9712f 100755
--- a/slsDetectorSoftware/slsDetectorServer/slsDetectorServer_funcs.h
+++ b/slsDetectorSoftware/slsDetectorServer/slsDetectorServer_funcs.h
@@ -6,12 +6,14 @@
 
 // initialization functions
 int printSocketReadError();
-void basictests(int);
+void setModeFlag(int);
+void basictests();
 void init_detector(int);
 int decode_function(int);
 const char* getFunctionName(enum detFuncs func);
 void function_table();
 int M_nofunc(int);
+int M_nofuncMode(int);
 
 // functions called by client
 int exec_command(int);