diff --git a/avr/modules/uart_fd/uartfd0.asm b/avr/modules/uart_fd/uartfd0.asm
index b10ab20..d4834cf 100644
--- a/avr/modules/uart_fd/uartfd0.asm
+++ b/avr/modules/uart_fd/uartfd0.asm
@@ -12,9 +12,10 @@
 
 
 
+
 .dseg
 
-uartFd0_iface: .bytes UARTFD_IFACE_SIZE
+uartFd0_iface: .byte UARTFD_IFACE_SIZE
 
 
 
@@ -34,13 +35,16 @@ UARTFD0_Init:
   std Y+UARTFD_IFACE_OFFS_WBUFNUM, r16
   clr r16
   std Y+UARTFD_IFACE_OFFS_WBUFLEFT, r16
+
   std Y+UARTFD_IFACE_OFFS_RBUFUSED, r16
   std Y+UARTFD_IFACE_OFFS_RBUFLEFT, r16
+  std Y+UARTFD_IFACE_OFFS_STATUS, r16
 
   M_UARTFD_SET_BAUDRATE 0
   M_UARTFD_SET_CHARFORMAT 0
 
   ; always receive!
+  rcall uartFd0StartReading
   rcall uartFd0StartRx
   
   ret
@@ -73,11 +77,20 @@ UARTFD0_Run:
   ldi yh, HIGH(uartFd0_iface)
   clr r22
 
-  rcall uartFd0RunRead           ; (r16, r17, r18, r19, r20, r24, r25, X, Z)
-  sbci r22, 0
+  push r15
+    in r15, SREG
+    
+    cli                            ; disable irqs
+    rcall uartFd0RunRead           ; (r16, r17, r18, r19, r20, r24, r25, X, Z)
+    sbci r22, 0
+    out SREG, r15                  ; probably enable irqs
+  
+    cli                            ; disable irqs
+    rcall uartFd0RunWrite          ; (r16, r17, r18, r19, r24, r25, X)
+    sbci r22, 0
 
-  rcall uartFd0RunWrite          ; (r16, r17, r18, r19, r24, r25, X)
-  sbci r22, 0
+    out SREG, r15                  ; probably enable irqs
+  pop r15
 
   tst r22
   clc
@@ -202,7 +215,8 @@ uartFd0RunRead:
     rcall uartFd0CheckOverrun       ; (r16, r24, r25)
     rcall uartFd0CheckHwErr         ; (r16, r24, r25)
     rcall uartFd0CheckBadMsgSize    ; (r16, r24, r25)
-    rcall uartFd0CheckSkipping      ; (R16, X)
+    rcall uartFd0CheckSkipping      ; (r16, X)
+    rcall uartFd0SetSkippingSignal  ; (r16, r17)
 
     ; clear error flags
     ldd r16, Y+UARTFD_IFACE_OFFS_STATUS
@@ -218,17 +232,41 @@ uartFd0RunRead:
 
 
 
+; ---------------------------------------------------------------------------
+; @routine uartFd0SetSkippingSignal
+;
+; @param Y pointer to interface data in SRAM
+; @clobbers r16 (r17)
+
+uartFd0SetSkippingSignal:
+#ifdef MODULES_LED_SIGNAL
+  ldd r16, Y+UARTFD_IFACE_OFFS_STATUS
+  andi r16, (1<<UARTFD_IFACE_STATUS_BIT_SKIPPING)
+  brne uartFd0SetSkippingSignal_skipping
+  ldi r16, T03_FLAGS_I1_SKIPPING
+  rcall LedSignal_ClrFlag                          ; (r17)
+  rjmp uartFd0SetSkippingSignal_ret
+uartFd0SetSkippingSignal_skipping:
+  ldi r16, T03_FLAGS_I1_SKIPPING
+  rcall LedSignal_SetFlag                          ; (r17)
+#endif
+uartFd0SetSkippingSignal_ret:
+  ret
+; @end
+
+
+
 ; ---------------------------------------------------------------------------
 ; @routine uartFd0CheckSkipping
 ;
 ; @param Y pointer to interface data in SRAM
-; @return CFLAG set if something done
 ; @clobbers r16 (X)
 
 uartFd0CheckSkipping:
   ldd r16, Y+UARTFD_IFACE_OFFS_STATUS
   andi r16, (1<<UARTFD_IFACE_STATUS_BIT_SKIPPING)
   breq uartFd0CheckSkipping_ret
+
   ldd r16, Y+NET_IFACE_OFFS_READTIMER
   cpi r16, UARTFD_SKIPPING_TIME
   brcs uartFd0CheckSkipping_ret
@@ -239,6 +277,7 @@ uartFd0CheckSkipping:
     ldd r16, Y+UARTFD_IFACE_OFFS_STATUS
     cbr r16, (1<<UARTFD_IFACE_STATUS_BIT_SKIPPING)
     std Y+UARTFD_IFACE_OFFS_STATUS, r16
+
     rcall uartFd0RestartReading                      ; (R16, X)
     out SREG, r15
   pop r15
@@ -384,6 +423,19 @@ uartFd0RestartReading:
   ldd r16, Y+UARTFD_IFACE_OFFS_STATUS
   cbr r16, (1<<UARTFD_IFACE_STATUS_BIT_OVERRUN) | (1<<UARTFD_IFACE_STATUS_BIT_HWERR) | (1<<UARTFD_IFACE_STATUS_BIT_BADMSGSIZE)
   std Y+UARTFD_IFACE_OFFS_STATUS, r16
+  
+  push r15
+    in r15, SREG
+    
+    cli                            ; disable irqs
+    M_UARTFD_FLUSH_IN 0
+
+    out SREG, r15                  ; probably enable irqs
+  pop r15
+
+;  rcall uartFd0StopRx
+;  nop
+;  rcall uartFd0StartRx
   ret
 ; @end
 
@@ -396,14 +448,17 @@ uartFd0RestartReading:
 ; @clobbers r16, r17, r18, X, Z (r19, r20, r24, r25)
 
 uartFd0FinishReading:
+  ; check message
   mov xl, yl
   mov xh, yh
   adiw xh:xl, UARTFD_IFACE_OFFS_RBUFFER
   rcall NETMSG_CheckMessageInBuffer       ; (R16, R17, R18, R19, R20, X)
   brcc uartFd0FinishReading_errorCrc
+  ; allocate buffer for storage
   rcall NET_Buffer_Alloc                  ; R16=number, X=ptr (R16, R17, X)
   brcc uartFd0FinishReading_errorMem
   ldd r18, Y+NET_IFACE_OFFS_IFACENUM
+  andi r18, 0x0f
   ld r17, X
   andi r17, 0xf0
   or r17, r18
@@ -418,11 +473,15 @@ uartFd0FinishReading_copyLoop:
     st X+, r18
     dec r17
   brne uartFd0FinishReading_copyLoop
+  ; add new buffer to incoming list
   rcall NET_AddIncomingMsgNum
   brcs uartFd0FinishReading_msgSaved
   rcall NET_Buffer_ReleaseByNum           ; (R16, X)
   rjmp uartFd0FinishReading_errorMem
 uartFd0FinishReading_msgSaved:
+#ifdef MODULES_LED_ACTIVITY
+  rcall LedActivity_Trigger                       ; (r16)
+#endif
   ldi r16, NET_IFACE_OFFS_PACKETSIN_LOW
   rjmp uartFd0FinishReading_incCounter
 uartFd0FinishReading_errorCrc:
@@ -542,7 +601,8 @@ uartFd0StartTx:
 ; @clobbers R16
 
 uartFd0StopTx:
-  M_UARTFD_STOP_TX 0
+;  M_UARTFD_STOP_TX 0
+  M_UARTFD_STOP_TXIRQS 0
   ret
 ; @end
 
@@ -682,6 +742,3 @@ UARTFD0_TxCharIsr:
 
 
 #endif
-
-
-