diff --git a/Makefile b/Makefile
index bc5444a..a66686d 100644
--- a/Makefile
+++ b/Makefile
@@ -77,6 +77,8 @@ $(PFFLAGS)
 ##-DMODULE: This symbol tells the header files to give the appropriate definitions for a kernel module.
 
 ## Determine the hardware/software platform
+LSCPU:=$(shell lscpu | grep "Model name" | awk '{print $$3}')
+$(UNAME)
 UNAME:=$(shell uname -m) ## processor: armv6l
 $(UNAME)
 KERNEL:=$(shell uname -a) ## kernel: Linux raspberrypi 4.19.97+ #1294 Thu Jan 30 13:10:54 GMT 2020 armv6l GNU/Linux
@@ -89,50 +91,70 @@ OSVERSION:=$(shell cat /etc/rpi-issue) ## os Date, http://github.com/RPi-Distro/
 $(OSVERSION)
 RPIVERSION:=$(shell cat /proc/device-tree/model) ## grab revision: | grep -a -o "Raspberry\sPi\sModel\s[A-Z]\sPlus" | grep -a -o "Rev\s[0-9].[0-9]" : Raspberry Pi Model B Plus Rev 1.2
 $(RPIVERSION)
+PIV:= $(shell expr $(RPIVERSION) | grep -a -o "Raspberry\sPi\sModel\s[A-Z]" | grep -o "[0-9]" = 4)
+$(PIV)
 PCPUI:=$(shell cat /proc/cpuinfo) ## cpuinfos my rev: 0010 -> 1.2 B+: | grep Revision | cut -c16-
 $(PCPUI)
 
 ## Enable ARM-specific options only
 ## old/special pi versions
 ifeq ($(UNAME), armv5)
-PFLAGS=-march=native -mtune=native -mfloat-abi=soft -mfpu=vfp -ffast-math -DRPI
-TARGET=RPI ## alternative1
+	PFLAGS=-march=native -mtune=native -mfloat-abi=soft -mfpu=vfp -ffast-math -DRPI
+	TARGET=RPI ## alternative1
 endif
 
 ifeq ($(UNAME), armv5l)
-PFLAGS=-march=native -mtune=native -mfloat-abi=softfp -mfpu=vfp -ffast-math -DRASPBERRY
-TARGET=RASPBERRY ## alternative2
+	PFLAGS=-march=native -mtune=native -mfloat-abi=softfp -mfpu=vfp -ffast-math -DRASPBERRY
+	TARGET=RASPBERRY ## alternative2
 endif
 
 ifeq ($(UNAME), armv6)
-PFLAGS=-march=armv6 -mtune=arm1176jzf-s -mfloat-abi=softfp -mfpu=vfp -ffast-math -DRASPI0
-TARGET=RASPI0 ## & Pi W
+	PFLAGS=-march=armv6 -mtune=arm1176jzf-s -mfloat-abi=softfp -mfpu=vfp -ffast-math -DRASPI0
+	TARGET=RASPI0 ## & Pi W
 endif
 
 ifeq ($(UNAME), armv6l)
-PFLAGS=-march=armv6 -mtune=arm1176jzf-s -mfloat-abi=hard -mfpu=vfp -ffast-math -DRASPI1
-TARGET=RASPI1
+	PFLAGS=-march=armv6 -mtune=arm1176jzf-s -mfloat-abi=hard -mfpu=vfp -ffast-math -DRASPI1
+	TARGET=RASPI1
 endif
 
 ifeq ($(UNAME), armv7l)
-PFLAGS=-march=armv7-a -mtune=arm1176jzf-s -mfloat-abi=hard -mfpu=neon-vfpv4 -ffast-math -DRASPI2
-TARGET=RASPI2
+	ifeq
+		PFLAGS=-march=armv7-a -mtune=arm1176jzf-s -mfloat-abi=hard -mfpu=neon-vfpv4 -ffast-math -DRASPI2
+		TARGET=RASPI2
+	else
+		PFLAGS=-march=armv7-a -mtune=arm1176jzf-s -mfloat-abi=hard -mfpu=vfp -ffast-math -DRASPI=4
+		TARGET = RASPI4L
+endif
+
+ifeq ($(UNAME), armv8l)
+	PFLAGS=-march=armv7-a -mtune=arm1176jzf-s -mfloat-abi=hard -mfpu=neon-vfpv4 -ffast-math -DRASPI3
+	TARGET=RASPI3
 endif
 
 ifeq ($(UNAME), armv8l)
-PFLAGS=-march=armv7-a -mtune=arm1176jzf-s -mfloat-abi=hard -mfpu=neon-vfpv4 -ffast-math -DRASPI3
-TARGET=RASPI3
+	PFLAGS=-march=armv7-a -mtune=arm1176jzf-s -mfloat-abi=hard -mfpu=neon-vfpv4 -ffast-math -DRASPI3
+	TARGET=RASPI4
+endif
+
+ifeq ($(UNAME), armv8l && $(PIV), 1)
+	PFLAGS=-march=armv8-a -mtune=cortex-a53 -mfloat-abi=hard -mfpu=neon-fp-armv8 -ffast-math -DRASPI4
+	TARGET=RASPI4
 endif
 
-ifeq ($(UNAME), armv8l && $(shell expr $(RPIVERSION) | grep -a -o "Raspberry\sPi\sModel\s[A-Z]" | grep -o "[0-9]" = 4), 1)
-PFLAGS=-march=armv8-a -mtune=cortex-a53 -mfloat-abi=hard -mfpu=neon-fp-armv8 -ffast-math -DRASPI4
-TARGET=RASPI4
+ifeq ($(UNAME), aarch64)
+	ifeq ($(PCPUI), 14)
+		PFLAGS=-march=armv8-a -ffast-math -DRASPI=4A
+		TARGET=RASPI4A
+	else ifeq ($(LSCPU), Cortex-A72)
+		PFLAGS=-march=armv8-a -mtune=cortex-a72 -ffast-math -DRASPI=4C
+		TARGET=RASPI4C
 endif
 
 $(TARGET)
 $(PFLAGS)
 
-#@echo Compiling PiFunk
+@echo "Compiling PiFunk"
 
 ## Generating objects in gcc specific order, -save-temps
 ## translated assembler/c-code
diff --git a/__init__.py b/__init__.py
index 92607d1..3c3e0d4 100644
--- a/__init__.py
+++ b/__init__.py
@@ -10,4 +10,7 @@ def main():
     print ("Welcome to PiFunk lite!")
 
 if __name__ == '__main__':
-    main()
+    try:
+        main()
+    except:
+        print("\nERROR\n")
diff --git a/pifunklite.c b/pifunklite.c
index d556c94..1af876f 100644
--- a/pifunklite.c
+++ b/pifunklite.c
@@ -185,7 +185,7 @@ volatile unsigned 										(*allof7e); // shouuld be NULL in the begining
 #define PWM_WRITES_PER_SAMPLE 				 (10) //
 #define PWM_CHANNEL_RANGE 						 (32) //
 #endif
-// pi 0 zero & w
+// pi0 zero & w
 #ifdef 	RASPI0 //== 0
 #define PERIPH_VIRT_BASE               (0x20000000) // base=GPIO_offset dec: 2 virtual base
 #define PERIPH_PHYS_BASE               (0x7E000000) // dec: 2113929216
@@ -202,7 +202,7 @@ volatile unsigned 										(*allof7e); // shouuld be NULL in the begining
 #define PWM_WRITES_PER_SAMPLE 				 (10) //
 #define PWM_CHANNEL_RANGE 						 (32) //
 #endif
-// pi 1 - BCM2835 -> my version
+// pi1 - BCM2835 -> my version
 #ifdef  RASPI1 // == 1
 #define PERIPH_VIRT_BASE               (0x20000000) // base=GPIO_offset dec: 2 virtual base
 #define PERIPH_PHYS_BASE               (0x7E000000) // dec: 2113929216
@@ -221,7 +221,7 @@ volatile unsigned 										(*allof7e); // shouuld be NULL in the begining
 #define PWM_WRITES_PER_SAMPLE 				 (10) //
 #define PWM_CHANNEL_RANGE 						 (32) //
 #endif
-// pi 2 - BCM2836/7
+// pi2 - BCM2836/7
 #ifdef  RASPI2 //== 2
 #define PERIPH_VIRT_BASE               (0x3F000000) // dec: 1056964608
 #define PERIPH_PHYS_BASE               (0x7E000000) // dec: 2113929216
@@ -253,7 +253,7 @@ volatile unsigned 										(*allof7e); // shouuld be NULL in the begining
 #define MEM_FLAG                       (0x04) // dec: 4
 #define CURBLOCK                       (0x04) // dec: 4 memflag
 #define OFF_VCLK                       (0x08) // dec: 2
-#define CLOCK_BASE									   (19.2E6) // 
+#define CLOCK_BASE									   (19.2E6) //
 #define XTAL_CLOCK                     (54.0E6) // = 54000000
 #define PAGE_SIZE                      (1024) // 4096
 #define DMA_CHANNEL										 (14) //
@@ -262,7 +262,7 @@ volatile unsigned 										(*allof7e); // shouuld be NULL in the begining
 #define PWM_WRITES_PER_SAMPLE 				 (10) //
 #define PWM_CHANNEL_RANGE 						 (32) //
 #endif
-// pi 4 - BCM2838
+// pi4 - BCM2838
 #ifdef  RASPI4 //== 4
 #define BCM2708_PERI_BASE 						 (0xFE000000) // 4261412864
 #define BCM2711_PERI_BASE              (0x3F000000) // 1056964608, coprocessor!
diff --git a/scripts/pifunklite.py b/scripts/pifunklite.py
index 06b0265..a2b240f 100644
--- a/scripts/pifunklite.py
+++ b/scripts/pifunklite.py
@@ -270,8 +270,9 @@ def logger ():
 
 ##------------------------------------------------------------------------------
 if __name__ == "__main__":
-  print ("\nStarting Program!\n")
-  (int (sys.argv [1])
+ print ("\nStarting Program!\n")
+ datetime.now().strftime("\n%d-%m-%Y, %H:%M:%S \n")
+ (int(sys.argv[1])
 
 ## run another py-script from shell-terminal (holds main script)
 ## selecting a individual band:
@@ -292,26 +293,27 @@ def logger ():
 
 ##------------------------------------------------------------------------------
 ## main program
-__init__ ()
-datetime.now().strftime("\n%d-%m-%Y, %H:%M:%S \n")
+try:
+ __init__ ()
+
 #print (datetime.datetime.now ())
 #current_time = datetime.datetime.now ()
 #str (datetime.now ())
 #current_time.isoformat ()
 
 ## here a menu with switchcase
-logger ()
-csv_reader ()
+ logger ()
+ csv_reader ()
 
 ## if args not specified, else so to play
-soundfile ()
-frequency ()
-sampler ()
-channels ()
-modulation ()
-callsign ()
+ soundfile ()
+ frequency ()
+ sampler ()
+ channels ()
+ modulation ()
+ callsign ()
 
-c_arg_parser ()
+ c_arg_parser ()
 
 try:
 ## if all args are parsed so to transmission mode
@@ -328,7 +330,11 @@ def logger ():
 except KeyboardInterrupt:
  GPIO.cleanup()       ## clean up GPIO on CTRL+C exit
 
-GPIO.cleanup()           ## clean up GPIO on normal exit
+ GPIO.cleanup()           ## clean up GPIO on normal exit
+
+except:
+ print("\nERROR\n")
+ pass
 ##------------------------------------------------------------------------------
 
 ## test-area