diff --git a/lang/make_lang.sh b/lang/make_lang.sh
index 11a3dd51b..392cacce2 100644
--- a/lang/make_lang.sh
+++ b/lang/make_lang.sh
@@ -1,138 +1,138 @@
-#!/bin/sh
-# makelang.sh - multi-language support high-level script
-#  for generating lang_xx.bin (secondary language binary file)
-#
-# Input files:
-#  lang_en.txt
-#  lang_en_$LANG.txt
-#
-# Output files:
-#  lang_en.tmp (temporary, will be removed when finished)
-#  lang_en_$LANG.tmp ==||==
-#  lang_en_$LANG.dif ==||==
-#  lang_$LANG.txt
-#
-#
-# Selected language:
-LANG=$1
-if [ -z "$LANG" ]; then LANG='cz'; fi
-#
-#
-
-function finish
-{
- if [ "$1" == "0" ]; then
-  if [ -e lang_en.tmp ]; then rm lang_en.tmp; fi
-  if [ -e lang_en_$LANG.tmp ]; then rm lang_en_$LANG.tmp; fi
-  if [ -e lang_en_$LANG.dif ]; then rm lang_en_$LANG.dif; fi
- fi
- echo
- if [ "$1" == "0" ]; then
-  echo "make_lang.sh finished with success" >&2
- else
-  echo "make_lang.sh finished with errors!" >&2
- fi
- case "$-" in
-  *i*) echo "press enter key"; read ;;
- esac
- exit $1
-}
-
-echo "make_lang.sh started" >&2
-echo "selected language=$LANG" >&2
-
-#check if input files exists
-echo -n " checking input files..." >&2
-if [ ! -e lang_en.txt ]; then echo "NG!  file lang_en.txt not found!" >&2; exit 1; fi
-if [ ! -e lang_en_$LANG.txt ]; then echo "NG!  file lang_en_$LANG.txt not found!" >&2; exit 1; fi
-echo "OK" >&2
-
-#filter comment and empty lines from key and dictionary files, create temporary files
-echo -n " creating tmp files..." >&2
-cat lang_en.txt | sed "/^$/d;/^#/d" > lang_en.tmp
-cat lang_en_$LANG.txt | sed "/^$/d;/^#/d" > lang_en_$LANG.tmp
-echo "OK" >&2
-#cat lang_en_$LANG.tmp | sed 'n;d' >test1.txt
-
-#compare files using diff and check for differences
-echo -n " comparing tmp files..." >&2
-if ! cat lang_en_$LANG.tmp | sed 'n;d' | diff lang_en.tmp - > lang_en_$LANG.dif; then
- echo "NG!" >&2
- echo "Entries in lang_en_$LANG.txt are different from lang_en.txt!" >&2
- echo "please check lang_en_$LANG.dif" >&2
- finish 1
-fi
-echo "OK" >&2
-
-#generate lang_xx.txt (secondary language text data sorted by ids)
-echo -n " generating lang_$LANG.txt..." >&2
-cat lang_en_$LANG.tmp | sed '1~2d' | sed "s/^\"\\\\x00/\"/" > lang_$LANG.txt
-echo "OK" >&2
-
-#generate lang_xx.dat (secondary language text data in binary form)
-echo -n " generating lang_$LANG.dat..." >&2
-cat lang_$LANG.txt | sed "s/\\\\/\\\\\\\\/g" | while read s; do
- s=${s#\"}
- s=${s%\"}
- echo -n -e "$s"'\x00'
-done >lang_$LANG.dat
-echo "OK" >&2
-
-#calculate variables
-lt_magic='\xa5\x5a\xb4\x4b'
-lt_count=$(grep -c '^' lang_$LANG.txt)
-lt_data_size=$(wc -c lang_$LANG.dat | cut -f1 -d' ')
-lt_offs_size=$((2 * $lt_count))
-lt_size=$((16 + $lt_offs_size + $lt_data_size))
-lt_chsum=1
-lt_resv0='\xff\xff'
-lt_resv1='\xff\xff\xff\xff'
-
-#generate lang_xx.ofs (secondary language text data offset table)
-echo -n " generating lang_$LANG.ofs..." >&2
-cat lang_$LANG.txt | sed "s/\\\\x[0-9a-f][0-9a-f]/\./g;s/\\\\[0-7][0-7][0-7]/\./g" |\
- awk 'BEGIN { o='$((16 + $lt_offs_size))';} { printf("%d\n",o); o+=(length($0)-1); }' > lang_$LANG.ofs
-echo "OK" >&2
-
-#generate lang_xx.bin (secondary language result binary file)
-echo " generating lang_$LANG.bin:" >&2
-#create empty file
-dd if=/dev/zero of=lang_$LANG.bin bs=1 count=$lt_size 2>/dev/null
-#awk code to format ui16 variables for dd
-awk_ui16='{ h=int($1/256); printf("\\x%02x\\x%02x\n", int($1-256*h), h); }'
-
-#write data to binary file with dd
-
-echo -n "  writing header (16 bytes)..." >&2
-echo -n -e "$lt_magic" |\
- dd of=lang_$LANG.bin bs=1 count=4 seek=0 conv=notrunc 2>/dev/null
-echo -n -e $(echo -n "$lt_size" | awk "$awk_ui16") |\
- dd of=lang_$LANG.bin bs=1 count=2 seek=4 conv=notrunc 2>/dev/null
-echo -n -e $(echo -n "$lt_count" | awk "$awk_ui16") |\
- dd of=lang_$LANG.bin bs=1 count=2 seek=6 conv=notrunc 2>/dev/null
-echo -n -e $(echo -n "$lt_chsum" | awk "$awk_ui16") |\
- dd of=lang_$LANG.bin bs=1 count=2 seek=8 conv=notrunc 2>/dev/null
-echo -n -e "$lt_resv0" |\
- dd of=lang_$LANG.bin bs=1 count=2 seek=10 conv=notrunc 2>/dev/null
-echo -n -e "$lt_resv1" |\
- dd of=lang_$LANG.bin bs=1 count=4 seek=12 conv=notrunc 2>/dev/null
-echo "OK" >&2
-
-echo -n "  writing offset table ($lt_offs_size bytes)..." >&2
-echo -n -e $(cat lang_$LANG.ofs | awk "$awk_ui16" | tr -d '\n'; echo) |\
- dd of=./lang_$LANG.bin bs=1 count=$lt_offs_size seek=16 conv=notrunc 2>/dev/null
-echo "OK" >&2
-
-echo -n "  writing text data ($lt_data_size bytes)..." >&2
-dd if=./lang_$LANG.dat of=./lang_$LANG.bin bs=1 count=$lt_data_size seek=$((16 + $lt_offs_size)) conv=notrunc 2>/dev/null
-echo "OK" >&2
-
-echo " lang_table details:" >&2
-echo "  lt_count = $lt_count" >&2
-echo "  lt_size  = $lt_size" >&2
-echo "  lt_chsum = $lt_chsum" >&2
-
-finish 0
-
-
-
+#!/bin/sh
+# makelang.sh - multi-language support high-level script
+#  for generating lang_xx.bin (secondary language binary file)
+#
+# Input files:
+#  lang_en.txt
+#  lang_en_$LANG.txt
+#
+# Output files:
+#  lang_en.tmp (temporary, will be removed when finished)
+#  lang_en_$LANG.tmp ==||==
+#  lang_en_$LANG.dif ==||==
+#  lang_$LANG.txt
+#
+#
+# Selected language:
+LANG=$1
+if [ -z "$LANG" ]; then LANG='cz'; fi
+#
+#
+
+function finish
+{
+ if [ "$1" == "0" ]; then
+  if [ -e lang_en.tmp ]; then rm lang_en.tmp; fi
+  if [ -e lang_en_$LANG.tmp ]; then rm lang_en_$LANG.tmp; fi
+  if [ -e lang_en_$LANG.dif ]; then rm lang_en_$LANG.dif; fi
+ fi
+ echo
+ if [ "$1" == "0" ]; then
+  echo "make_lang.sh finished with success" >&2
+ else
+  echo "make_lang.sh finished with errors!" >&2
+ fi
+ case "$-" in
+  *i*) echo "press enter key"; read ;;
+ esac
+ exit $1
+}
+
+echo "make_lang.sh started" >&2
+echo "selected language=$LANG" >&2
+
+#check if input files exists
+echo -n " checking input files..." >&2
+if [ ! -e lang_en.txt ]; then echo "NG!  file lang_en.txt not found!" >&2; exit 1; fi
+if [ ! -e lang_en_$LANG.txt ]; then echo "NG!  file lang_en_$LANG.txt not found!" >&2; exit 1; fi
+echo "OK" >&2
+
+#filter comment and empty lines from key and dictionary files, create temporary files
+echo -n " creating tmp files..." >&2
+cat lang_en.txt | sed "/^$/d;/^#/d" > lang_en.tmp
+cat lang_en_$LANG.txt | sed "/^$/d;/^#/d" > lang_en_$LANG.tmp
+echo "OK" >&2
+#cat lang_en_$LANG.tmp | sed 'n;d' >test1.txt
+
+#compare files using diff and check for differences
+echo -n " comparing tmp files..." >&2
+if ! cat lang_en_$LANG.tmp | sed 'n;d' | diff lang_en.tmp - > lang_en_$LANG.dif; then
+ echo "NG!" >&2
+ echo "Entries in lang_en_$LANG.txt are different from lang_en.txt!" >&2
+ echo "please check lang_en_$LANG.dif" >&2
+ finish 1
+fi
+echo "OK" >&2
+
+#generate lang_xx.txt (secondary language text data sorted by ids)
+echo -n " generating lang_$LANG.txt..." >&2
+cat lang_en_$LANG.tmp | sed '1~2d' | sed "s/^\"\\\\x00/\"/" > lang_$LANG.txt
+echo "OK" >&2
+
+#generate lang_xx.dat (secondary language text data in binary form)
+echo -n " generating lang_$LANG.dat..." >&2
+cat lang_$LANG.txt | sed "s/\\\\/\\\\\\\\/g" | while read s; do
+ s=${s#\"}
+ s=${s%\"}
+ echo -n -e "$s"'\x00'
+done >lang_$LANG.dat
+echo "OK" >&2
+
+#calculate variables
+lt_magic='\xa5\x5a\xb4\x4b'
+lt_count=$(grep -c '^' lang_$LANG.txt)
+lt_data_size=$(wc -c lang_$LANG.dat | cut -f1 -d' ')
+lt_offs_size=$((2 * $lt_count))
+lt_size=$((16 + $lt_offs_size + $lt_data_size))
+lt_chsum=1
+lt_resv0='\xff\xff'
+lt_resv1='\xff\xff\xff\xff'
+
+#generate lang_xx.ofs (secondary language text data offset table)
+echo -n " generating lang_$LANG.ofs..." >&2
+cat lang_$LANG.txt | sed "s/\\\\x[0-9a-f][0-9a-f]/\./g;s/\\\\[0-7][0-7][0-7]/\./g" |\
+ awk 'BEGIN { o='$((16 + $lt_offs_size))';} { printf("%d\n",o); o+=(length($0)-1); }' > lang_$LANG.ofs
+echo "OK" >&2
+
+#generate lang_xx.bin (secondary language result binary file)
+echo " generating lang_$LANG.bin:" >&2
+#create empty file
+dd if=/dev/zero of=lang_$LANG.bin bs=1 count=$lt_size 2>/dev/null
+#awk code to format ui16 variables for dd
+awk_ui16='{ h=int($1/256); printf("\\x%02x\\x%02x\n", int($1-256*h), h); }'
+
+#write data to binary file with dd
+
+echo -n "  writing header (16 bytes)..." >&2
+echo -n -e "$lt_magic" |\
+ dd of=lang_$LANG.bin bs=1 count=4 seek=0 conv=notrunc 2>/dev/null
+echo -n -e $(echo -n "$lt_size" | awk "$awk_ui16") |\
+ dd of=lang_$LANG.bin bs=1 count=2 seek=4 conv=notrunc 2>/dev/null
+echo -n -e $(echo -n "$lt_count" | awk "$awk_ui16") |\
+ dd of=lang_$LANG.bin bs=1 count=2 seek=6 conv=notrunc 2>/dev/null
+echo -n -e $(echo -n "$lt_chsum" | awk "$awk_ui16") |\
+ dd of=lang_$LANG.bin bs=1 count=2 seek=8 conv=notrunc 2>/dev/null
+echo -n -e "$lt_resv0" |\
+ dd of=lang_$LANG.bin bs=1 count=2 seek=10 conv=notrunc 2>/dev/null
+echo -n -e "$lt_resv1" |\
+ dd of=lang_$LANG.bin bs=1 count=4 seek=12 conv=notrunc 2>/dev/null
+echo "OK" >&2
+
+echo -n "  writing offset table ($lt_offs_size bytes)..." >&2
+echo -n -e $(cat lang_$LANG.ofs | awk "$awk_ui16" | tr -d '\n'; echo) |\
+ dd of=./lang_$LANG.bin bs=1 count=$lt_offs_size seek=16 conv=notrunc 2>/dev/null
+echo "OK" >&2
+
+echo -n "  writing text data ($lt_data_size bytes)..." >&2
+dd if=./lang_$LANG.dat of=./lang_$LANG.bin bs=1 count=$lt_data_size seek=$((16 + $lt_offs_size)) conv=notrunc 2>/dev/null
+echo "OK" >&2
+
+echo " lang_table details:" >&2
+echo "  lt_count = $lt_count" >&2
+echo "  lt_size  = $lt_size" >&2
+echo "  lt_chsum = $lt_chsum" >&2
+
+finish 0
+
+
+
diff --git a/lang/po/make_po.sh b/lang/po/make_po.sh
index 2cd6dd8d6..457f3cf0e 100644
--- a/lang/po/make_po.sh
+++ b/lang/po/make_po.sh
@@ -1,61 +1,61 @@
-#!/bin/sh
-#
-# make_po.sh - multi-language support script
-#  for generating lang_xx.po
-#
-SRCDIR="../../Firmware"
-#
-LANG=$1
-if [ -z "$LANG" ]; then LANG=cz; fi
-#
-
-echo "make_po.sh started" >&2
-
-#remove output file if exists
-if [ -e lang_$LANG.po ]; then rm lang_$LANG.po; fi
-
-langname=$(\
- case "$LANG" in
-  *en*) echo "English" ;;
-  *cz*) echo "Czech" ;;
-  *de*) echo "German" ;;
-  *it*) echo "Italian" ;;
-  *es*) echo "Spanish" ;;
-  *pl*) echo "Polish" ;;
- esac)
-
-#write po header
-echo "# Translation into $langname." > lang_$LANG.po
-echo "#" >> lang_$LANG.po
-echo 'msgid ""' >> lang_$LANG.po
-echo 'msgstr ""' >> lang_$LANG.po
-echo '"MIME-Version: 1.0\n"' >> lang_$LANG.po
-echo '"Content-Type: text/plain; charset=UTF-8\n"' >> lang_$LANG.po
-echo '"Content-Transfer-Encoding: 8bit\n"' >> lang_$LANG.po
-echo >> lang_$LANG.po
-
-#list .cpp, .c and .h files
-files=$(ls "$SRCDIR"/*.cpp "$SRCDIR"/*.c "$SRCDIR"/*.h)
-
-#loop over all messages, print only untranslated (=="\x00")
-s0=''
-s1=''
-s2=''
-cat ../lang_en_$LANG.txt | sed "s/\\\\/\\\\\\\\/g;s/^#/#: /" | while read -r s; do
- if [ "$s" == "" ]; then
-  if [ "$s0" == "\"\\\\x00\"" ]; then
-   search=$(echo -e "$s1")
-   found=$(grep -m1 -n -F "$search" $files | head -n1 | cut -f1-2 -d':' | sed "s/^.*\///")
-   echo "#: $found"
-   echo -e "msgid $s1"
-   echo 'msgstr ""'
-   echo
-  fi
- fi
- s2=$s1
- s1=$s0
- s0=$s 
-done >> lang_$LANG.po
-
-echo "make_po.sh finished" >&2
-exit 0
+#!/bin/sh
+#
+# make_po.sh - multi-language support script
+#  for generating lang_xx.po
+#
+SRCDIR="../../Firmware"
+#
+LANG=$1
+if [ -z "$LANG" ]; then LANG=cz; fi
+#
+
+echo "make_po.sh started" >&2
+
+#remove output file if exists
+if [ -e lang_$LANG.po ]; then rm lang_$LANG.po; fi
+
+langname=$(\
+ case "$LANG" in
+  *en*) echo "English" ;;
+  *cz*) echo "Czech" ;;
+  *de*) echo "German" ;;
+  *it*) echo "Italian" ;;
+  *es*) echo "Spanish" ;;
+  *pl*) echo "Polish" ;;
+ esac)
+
+#write po header
+echo "# Translation into $langname." > lang_$LANG.po
+echo "#" >> lang_$LANG.po
+echo 'msgid ""' >> lang_$LANG.po
+echo 'msgstr ""' >> lang_$LANG.po
+echo '"MIME-Version: 1.0\n"' >> lang_$LANG.po
+echo '"Content-Type: text/plain; charset=UTF-8\n"' >> lang_$LANG.po
+echo '"Content-Transfer-Encoding: 8bit\n"' >> lang_$LANG.po
+echo >> lang_$LANG.po
+
+#list .cpp, .c and .h files
+files=$(ls "$SRCDIR"/*.cpp "$SRCDIR"/*.c "$SRCDIR"/*.h)
+
+#loop over all messages, print only untranslated (=="\x00")
+s0=''
+s1=''
+s2=''
+cat ../lang_en_$LANG.txt | sed "s/\\\\/\\\\\\\\/g;s/^#/#: /" | while read -r s; do
+ if [ "$s" == "" ]; then
+  if [ "$s0" == "\"\\\\x00\"" ]; then
+   search=$(echo -e "$s1")
+   found=$(grep -m1 -n -F "$search" $files | head -n1 | cut -f1-2 -d':' | sed "s/^.*\///")
+   echo "#: $found"
+   echo -e "msgid $s1"
+   echo 'msgstr ""'
+   echo
+  fi
+ fi
+ s2=$s1
+ s1=$s0
+ s0=$s 
+done >> lang_$LANG.po
+
+echo "make_po.sh finished" >&2
+exit 0
diff --git a/lang/postbuild.sh b/lang/postbuild.sh
index 70a4a3145..d3f0ba7cb 100644
--- a/lang/postbuild.sh
+++ b/lang/postbuild.sh
@@ -1,116 +1,116 @@
-#!/bin/sh
-# postbuild.sh - multi-language support high-level script
-#  for generating binary with secondary language
-#
-# Input files:
-#  $OUTDIR/Firmware.ino.elf
-#  $OUTDIR/sketch/*.o (all object files)
-#
-# Output files:
-#  text.sym
-#  $PROGMEM.sym (progmem1.sym)
-#  $PROGMEM.lss (...)
-#  $PROGMEM.hex
-#  $PROGMEM.chr
-#  $PROGMEM.var
-#  $PROGMEM.txt
-#  textaddr.txt
-#
-# Output folder and elf file:
-OUTDIR="../../output"
-OUTELF="$OUTDIR/Firmware.ino.elf"
-#
-# AVR gcc tools used:
-OBJCOPY=C:/arduino-1.6.8/hardware/tools/avr/bin/avr-objcopy.exe
-#
-# Selected language:
-LANG=$1
-#if [ -z "$LANG" ]; then LANG='cz'; fi
-#
-# Params:
-IGNORE_MISSING_TEXT=1
-
-function finish
-{
- echo
- if [ "$1" == "0" ]; then
-  echo "postbuild.sh finished with success" >&2
- else
-  echo "postbuild.sh finished with errors!" >&2
- fi
- case "$-" in
-  *i*) echo "press enter key"; read ;;
- esac
- exit $1
-}
-
-echo "postbuild.sh started" >&2
-
-#check input files
-echo " checking files:" >&2
-if [ ! -e $OUTDIR ]; then echo "  folder '$OUTDIR' not found!" >&2; finish 1; fi
-echo "  folder  OK" >&2
-if [ ! -e $OUTELF ]; then echo "  elf file '$OUTELF' not found!" >&2; finish 1; fi
-echo "  elf     OK" >&2
-if ! ls $OUTDIR/sketch/*.o >/dev/null 2>&1; then echo "  no object files in '$OUTDIR/sketch/'!" >&2; finish 1; fi
-echo "  objects OK" >&2
-
-#run progmem.sh - examine content of progmem1
-echo -n " running progmem.sh..." >&2
-./progmem.sh 1 2>progmem.out
-if [ $? -ne 0 ]; then echo "NG! - check progmem.out file" >&2; finish 1; fi
-echo "OK" >&2
-
-#run textaddr.sh - map progmem addreses to text identifiers
-echo -n " running textaddr.sh..." >&2
-./textaddr.sh 2>textaddr.out
-if [ $? -ne 0 ]; then echo "NG! - check progmem.out file" >&2; finish 1; fi
-echo "OK" >&2
-
-#check for messages declared in progmem1, but not found in lang_en.txt
-echo -n " checking textaddr.txt..." >&2
-if cat textaddr.txt | grep "^ADDR NF" >/dev/null; then
- echo "NG! - some texts not found in lang_en.txt!"
- if [ $(("0$IGNORE_MISSING_TEXT")) -eq 0 ]; then
-  finish 1
- else
-  echo "  missing text ignored!" >&2
- fi
-else
- echo "OK" >&2
-fi
-
-#update progmem1 id entries in binary file
-echo -n " extracting binary..." >&2
-$OBJCOPY -I ihex -O binary $OUTDIR/Firmware.ino.hex ./firmware.bin
-echo "OK" >&2
-
-#update binary file
-echo " updating binary:" >&2
-
-#update progmem1 id entries in binary file
-echo -n "  primary language ids..." >&2
-cat textaddr.txt | grep "^ADDR OK" | cut -f3- -d' ' | sed "s/^0000/0x/" |\
- awk '{ id = $2 - 1; hi = int(id / 256); lo = int(id - 256 * hi); printf("%d \\\\x%02x\\\\x%02x\n", strtonum($1), lo, hi); }' |\
- while read addr data; do
-  echo -n -e $data | dd of=./firmware.bin bs=1 count=2 seek=$addr conv=notrunc oflag=nonblock 2>/dev/null
- done
-echo "OK" >&2
-
-#update _SEC_LANG in binary file if language is selected
-echo -n "  secondary language data..." >&2
-if [ ! -z "$LANG" ]; then
- ./update_lang.sh $LANG 2>./update_lang.out
- if [ $? -ne 0 ]; then echo "NG! - check update_lang.out file" >&2; finish 1; fi
- echo "OK" >&2
- finish 0
-else
- echo "skipped" >&2
-fi
-
-#convert bin to hex
-echo -n " converting to hex..." >&2
-$OBJCOPY -I binary -O ihex ./firmware.bin ./firmware.hex
-echo "OK" >&2
-
-finish 0
+#!/bin/sh
+# postbuild.sh - multi-language support high-level script
+#  for generating binary with secondary language
+#
+# Input files:
+#  $OUTDIR/Firmware.ino.elf
+#  $OUTDIR/sketch/*.o (all object files)
+#
+# Output files:
+#  text.sym
+#  $PROGMEM.sym (progmem1.sym)
+#  $PROGMEM.lss (...)
+#  $PROGMEM.hex
+#  $PROGMEM.chr
+#  $PROGMEM.var
+#  $PROGMEM.txt
+#  textaddr.txt
+#
+# Output folder and elf file:
+OUTDIR="../../output"
+OUTELF="$OUTDIR/Firmware.ino.elf"
+#
+# AVR gcc tools used:
+OBJCOPY=C:/arduino-1.6.8/hardware/tools/avr/bin/avr-objcopy.exe
+#
+# Selected language:
+LANG=$1
+#if [ -z "$LANG" ]; then LANG='cz'; fi
+#
+# Params:
+IGNORE_MISSING_TEXT=1
+
+function finish
+{
+ echo
+ if [ "$1" == "0" ]; then
+  echo "postbuild.sh finished with success" >&2
+ else
+  echo "postbuild.sh finished with errors!" >&2
+ fi
+ case "$-" in
+  *i*) echo "press enter key"; read ;;
+ esac
+ exit $1
+}
+
+echo "postbuild.sh started" >&2
+
+#check input files
+echo " checking files:" >&2
+if [ ! -e $OUTDIR ]; then echo "  folder '$OUTDIR' not found!" >&2; finish 1; fi
+echo "  folder  OK" >&2
+if [ ! -e $OUTELF ]; then echo "  elf file '$OUTELF' not found!" >&2; finish 1; fi
+echo "  elf     OK" >&2
+if ! ls $OUTDIR/sketch/*.o >/dev/null 2>&1; then echo "  no object files in '$OUTDIR/sketch/'!" >&2; finish 1; fi
+echo "  objects OK" >&2
+
+#run progmem.sh - examine content of progmem1
+echo -n " running progmem.sh..." >&2
+./progmem.sh 1 2>progmem.out
+if [ $? -ne 0 ]; then echo "NG! - check progmem.out file" >&2; finish 1; fi
+echo "OK" >&2
+
+#run textaddr.sh - map progmem addreses to text identifiers
+echo -n " running textaddr.sh..." >&2
+./textaddr.sh 2>textaddr.out
+if [ $? -ne 0 ]; then echo "NG! - check progmem.out file" >&2; finish 1; fi
+echo "OK" >&2
+
+#check for messages declared in progmem1, but not found in lang_en.txt
+echo -n " checking textaddr.txt..." >&2
+if cat textaddr.txt | grep "^ADDR NF" >/dev/null; then
+ echo "NG! - some texts not found in lang_en.txt!"
+ if [ $(("0$IGNORE_MISSING_TEXT")) -eq 0 ]; then
+  finish 1
+ else
+  echo "  missing text ignored!" >&2
+ fi
+else
+ echo "OK" >&2
+fi
+
+#update progmem1 id entries in binary file
+echo -n " extracting binary..." >&2
+$OBJCOPY -I ihex -O binary $OUTDIR/Firmware.ino.hex ./firmware.bin
+echo "OK" >&2
+
+#update binary file
+echo " updating binary:" >&2
+
+#update progmem1 id entries in binary file
+echo -n "  primary language ids..." >&2
+cat textaddr.txt | grep "^ADDR OK" | cut -f3- -d' ' | sed "s/^0000/0x/" |\
+ awk '{ id = $2 - 1; hi = int(id / 256); lo = int(id - 256 * hi); printf("%d \\\\x%02x\\\\x%02x\n", strtonum($1), lo, hi); }' |\
+ while read addr data; do
+  echo -n -e $data | dd of=./firmware.bin bs=1 count=2 seek=$addr conv=notrunc oflag=nonblock 2>/dev/null
+ done
+echo "OK" >&2
+
+#update _SEC_LANG in binary file if language is selected
+echo -n "  secondary language data..." >&2
+if [ ! -z "$LANG" ]; then
+ ./update_lang.sh $LANG 2>./update_lang.out
+ if [ $? -ne 0 ]; then echo "NG! - check update_lang.out file" >&2; finish 1; fi
+ echo "OK" >&2
+ finish 0
+else
+ echo "skipped" >&2
+fi
+
+#convert bin to hex
+echo -n " converting to hex..." >&2
+$OBJCOPY -I binary -O ihex ./firmware.bin ./firmware.hex
+echo "OK" >&2
+
+finish 0
diff --git a/lang/progmem.sh b/lang/progmem.sh
index e0f7750e9..f2a70da0d 100644
--- a/lang/progmem.sh
+++ b/lang/progmem.sh
@@ -1,127 +1,127 @@
-#!/bin/sh
-# progmem.sh - multi-language support low-level script
-#  for examining content of progmem sections (default is progmem1)
-#
-# Input files:
-#  $OUTDIR/Firmware.ino.elf
-#  $OUTDIR/sketch/*.o (all object files)
-#
-# Output files:
-#  text.sym
-#  $PROGMEM.sym
-#  $PROGMEM.lss
-#  $PROGMEM.hex
-#  $PROGMEM.chr
-#  $PROGMEM.var
-#  $PROGMEM.txt
-#
-# Program memory used
-PROGMEM=progmem$1
-if [ -z "$1" ]; then PROGMEM=progmem1; fi
-#
-# Output folder and elf file:
-OUTDIR="../../output"
-OUTELF="$OUTDIR/Firmware.ino.elf"
-#
-# AVR gcc tools used:
-OBJDUMP=C:/arduino-1.6.8/hardware/tools/avr/bin/avr-objdump.exe
-#
-#
-# Description of process:
-#  0. check input files
-#  1. remove output files
-#  2. list symbol table of section '.text' from output elf file to text.sym (sorted by address)
-#  3. list symbol table of section '.$PROGMEM' from all output object files to $PROGMEM.sym
-#  4. filter only $PROGMEM symbols from text.sym and store it back to $PROGMEM.sym with absolute address
-#  5. calculate start and stop address of section '.$PROGMEM'
-#  6. extract string data from elf file to $PROGMEM.hex
-#  7. prepare string data for character check and conversion (output to $PROGMEM.chr)
-#  8. perform character check and conversion (output to $PROGMEM.var and $PROGMEM.txt)
-#
-
-echo "progmem.sh started" >&2
-
-# (0)
-echo " progmem.sh (0) - checking input files" >&2
-if [ ! -e $OUTDIR ]; then echo "progmem.sh - file '$OUTELF' not found!" >&2; exit 1; fi
-
-# (1)
-echo " progmem.sh (1) - removing output files" >&2
-#remove output files if exists
-if [ -e text.sym ]; then rm text.sym; fi
-if [ -e $PROGMEM.sym ]; then rm $PROGMEM.sym; fi
-if [ -e $PROGMEM.lss ]; then rm $PROGMEM.lss; fi
-if [ -e $PROGMEM.hex ]; then rm $PROGMEM.hex; fi
-if [ -e $PROGMEM.chr ]; then rm $PROGMEM.chr; fi
-if [ -e $PROGMEM.var ]; then rm $PROGMEM.var; fi
-if [ -e $PROGMEM.txt ]; then rm $PROGMEM.txt; fi
-
-# (2)
-echo " progmem.sh (2) - listing symbol table of section '.text'" >&2
-#list symbols from section '.text' into file text.sym (only address, size and name)
-$OBJDUMP -t -j ".text" $OUTELF | tail -n +5 | grep -E "^[0-9a-f]{8} [gl]     O" | cut -c1-9,28-36,37- | sed "/^$/d" | sort >> text.sym
-
-# (3)
-echo " progmem.sh (3) - listing symbol table of section '.$PROGMEM'" >&2
-#loop over all object files
-ls "$OUTDIR"/sketch/*.o | while read fn; do
- echo "  processing $fn" >&2
- #list symbols from section $PROGMEM (only address, size and name)
- $OBJDUMP -t -j ".$PROGMEM" $fn 2>/dev/null | tail -n +5 | cut -c1-9,28-36,37- | sed "/^$/d" | sort >> $PROGMEM.sym
-done
-
-# (4)
-echo " progmem.sh (4) - filtering $PROGMEM symbols" >&2
-#create list of $PROGMEM symbol names separated by '\|'
-progmem=$(cut -c19- $PROGMEM.sym)
-progmem=$(echo $progmem | sed "s/ /\\\b\\\|\\\b/g")
-progmem='\b'$progmem'\b'
-#filter $PROGMEM symbols from section '.text' (result file will contain list sorted by absolute address) 
-cat text.sym | grep $progmem > $PROGMEM.sym
-
-# (5)
-echo " progmem.sh (5) - calculating start and stop address" >&2
-#calculate start addres of section ".$PROGMEM"
-PROGMEM_BEG=$(head -n1 $PROGMEM.sym | while read offs size name; do echo "0x"$offs; done)
-#calculate stop addres of section ".$PROGMEM"
-PROGMEM_END=$(tail -n1 $PROGMEM.sym | while read offs size name; do printf "0x%x" $(("0x"$offs + "0x"$size)); done)
-echo "  START address = "$PROGMEM_BEG >&2
-echo "  STOP  address = "$PROGMEM_END >&2
-
-# (6)
-echo " progmem.sh (6) - extracting string data from elf" >&2
-#dump $PROGMEM data in hex format, cut textual data (keep hex data only)
-$OBJDUMP -d -j ".text" -w -z --start-address=$PROGMEM_BEG --stop-address=$PROGMEM_END $OUTELF | cut -c1-57 > $PROGMEM.lss
-#convert $PROGMEM.lss to $PROGMEM.hex:
-# replace empty lines with '|' (variables separated by empty lines)
-# remove address from multiline variables (keep address at first variable line only)
-# remove '<' and '>:', remove whitespace at end of lines
-# remove line-endings, replace separator with '\n' (join hex data lines - each line will contain single variable)
-# filter progmem symbols
-cat $PROGMEM.lss | tail -n +7 | sed -E 's/^$/|/;s/^........:\t/ /;s/<//g;s/>:/ /g;s/[ \t]*$//' |\
- tr -d '\n' | sed "s/[|]/\n/g" | grep $progmem > $PROGMEM.hex
-
-# (7)
-echo " progmem.sh (7) - preparing string data" >&2
-#convert $PROGMEM.hex to $PROGMEM.chr (prepare string data for character check and conversion) 
-# replace first space with tab
-# replace second space with tab and space
-# replace all remaining spaces with '\x'
-# replace all tabs with spaces
-cat $PROGMEM.hex | sed 's/ /\t/;s/ /\t /;s/ /\\x/g;s/\t/ /g' > $PROGMEM.chr
-
-# (8)
-#convert $PROGMEM.chr to $PROGMEM.var (convert data to text)
-echo " progmem.sh (8) - converting string data" >&2
-cat $PROGMEM.chr | \
- sed 's/ \\xff\\xff/ /;' | \
- sed 's/\\x22/\\\\\\x22/g;' | \
- sed 's/\\x1b/\\\\\\x1b/g;' | \
- sed 's/\\x01/\\\\\\x01/g;' | \
- sed 's/\\xf8/\\\\\\xf8/g;' | \
- sed 's/\\x00$/\\x0a/;s/^/printf "/;s/$/"/' | sh > $PROGMEM.var
-cat $PROGMEM.var | sed 's/\r/\n/g' |sed -E 's/^[0-9a-f]{8} [^ ]* //' >$PROGMEM.txt
-
-echo "progmem.sh finished" >&2
-
+#!/bin/sh
+# progmem.sh - multi-language support low-level script
+#  for examining content of progmem sections (default is progmem1)
+#
+# Input files:
+#  $OUTDIR/Firmware.ino.elf
+#  $OUTDIR/sketch/*.o (all object files)
+#
+# Output files:
+#  text.sym
+#  $PROGMEM.sym
+#  $PROGMEM.lss
+#  $PROGMEM.hex
+#  $PROGMEM.chr
+#  $PROGMEM.var
+#  $PROGMEM.txt
+#
+# Program memory used
+PROGMEM=progmem$1
+if [ -z "$1" ]; then PROGMEM=progmem1; fi
+#
+# Output folder and elf file:
+OUTDIR="../../output"
+OUTELF="$OUTDIR/Firmware.ino.elf"
+#
+# AVR gcc tools used:
+OBJDUMP=C:/arduino-1.6.8/hardware/tools/avr/bin/avr-objdump.exe
+#
+#
+# Description of process:
+#  0. check input files
+#  1. remove output files
+#  2. list symbol table of section '.text' from output elf file to text.sym (sorted by address)
+#  3. list symbol table of section '.$PROGMEM' from all output object files to $PROGMEM.sym
+#  4. filter only $PROGMEM symbols from text.sym and store it back to $PROGMEM.sym with absolute address
+#  5. calculate start and stop address of section '.$PROGMEM'
+#  6. extract string data from elf file to $PROGMEM.hex
+#  7. prepare string data for character check and conversion (output to $PROGMEM.chr)
+#  8. perform character check and conversion (output to $PROGMEM.var and $PROGMEM.txt)
+#
+
+echo "progmem.sh started" >&2
+
+# (0)
+echo " progmem.sh (0) - checking input files" >&2
+if [ ! -e $OUTDIR ]; then echo "progmem.sh - file '$OUTELF' not found!" >&2; exit 1; fi
+
+# (1)
+echo " progmem.sh (1) - removing output files" >&2
+#remove output files if exists
+if [ -e text.sym ]; then rm text.sym; fi
+if [ -e $PROGMEM.sym ]; then rm $PROGMEM.sym; fi
+if [ -e $PROGMEM.lss ]; then rm $PROGMEM.lss; fi
+if [ -e $PROGMEM.hex ]; then rm $PROGMEM.hex; fi
+if [ -e $PROGMEM.chr ]; then rm $PROGMEM.chr; fi
+if [ -e $PROGMEM.var ]; then rm $PROGMEM.var; fi
+if [ -e $PROGMEM.txt ]; then rm $PROGMEM.txt; fi
+
+# (2)
+echo " progmem.sh (2) - listing symbol table of section '.text'" >&2
+#list symbols from section '.text' into file text.sym (only address, size and name)
+$OBJDUMP -t -j ".text" $OUTELF | tail -n +5 | grep -E "^[0-9a-f]{8} [gl]     O" | cut -c1-9,28-36,37- | sed "/^$/d" | sort >> text.sym
+
+# (3)
+echo " progmem.sh (3) - listing symbol table of section '.$PROGMEM'" >&2
+#loop over all object files
+ls "$OUTDIR"/sketch/*.o | while read fn; do
+ echo "  processing $fn" >&2
+ #list symbols from section $PROGMEM (only address, size and name)
+ $OBJDUMP -t -j ".$PROGMEM" $fn 2>/dev/null | tail -n +5 | cut -c1-9,28-36,37- | sed "/^$/d" | sort >> $PROGMEM.sym
+done
+
+# (4)
+echo " progmem.sh (4) - filtering $PROGMEM symbols" >&2
+#create list of $PROGMEM symbol names separated by '\|'
+progmem=$(cut -c19- $PROGMEM.sym)
+progmem=$(echo $progmem | sed "s/ /\\\b\\\|\\\b/g")
+progmem='\b'$progmem'\b'
+#filter $PROGMEM symbols from section '.text' (result file will contain list sorted by absolute address) 
+cat text.sym | grep $progmem > $PROGMEM.sym
+
+# (5)
+echo " progmem.sh (5) - calculating start and stop address" >&2
+#calculate start addres of section ".$PROGMEM"
+PROGMEM_BEG=$(head -n1 $PROGMEM.sym | while read offs size name; do echo "0x"$offs; done)
+#calculate stop addres of section ".$PROGMEM"
+PROGMEM_END=$(tail -n1 $PROGMEM.sym | while read offs size name; do printf "0x%x" $(("0x"$offs + "0x"$size)); done)
+echo "  START address = "$PROGMEM_BEG >&2
+echo "  STOP  address = "$PROGMEM_END >&2
+
+# (6)
+echo " progmem.sh (6) - extracting string data from elf" >&2
+#dump $PROGMEM data in hex format, cut textual data (keep hex data only)
+$OBJDUMP -d -j ".text" -w -z --start-address=$PROGMEM_BEG --stop-address=$PROGMEM_END $OUTELF | cut -c1-57 > $PROGMEM.lss
+#convert $PROGMEM.lss to $PROGMEM.hex:
+# replace empty lines with '|' (variables separated by empty lines)
+# remove address from multiline variables (keep address at first variable line only)
+# remove '<' and '>:', remove whitespace at end of lines
+# remove line-endings, replace separator with '\n' (join hex data lines - each line will contain single variable)
+# filter progmem symbols
+cat $PROGMEM.lss | tail -n +7 | sed -E 's/^$/|/;s/^........:\t/ /;s/<//g;s/>:/ /g;s/[ \t]*$//' |\
+ tr -d '\n' | sed "s/[|]/\n/g" | grep $progmem > $PROGMEM.hex
+
+# (7)
+echo " progmem.sh (7) - preparing string data" >&2
+#convert $PROGMEM.hex to $PROGMEM.chr (prepare string data for character check and conversion) 
+# replace first space with tab
+# replace second space with tab and space
+# replace all remaining spaces with '\x'
+# replace all tabs with spaces
+cat $PROGMEM.hex | sed 's/ /\t/;s/ /\t /;s/ /\\x/g;s/\t/ /g' > $PROGMEM.chr
+
+# (8)
+#convert $PROGMEM.chr to $PROGMEM.var (convert data to text)
+echo " progmem.sh (8) - converting string data" >&2
+cat $PROGMEM.chr | \
+ sed 's/ \\xff\\xff/ /;' | \
+ sed 's/\\x22/\\\\\\x22/g;' | \
+ sed 's/\\x1b/\\\\\\x1b/g;' | \
+ sed 's/\\x01/\\\\\\x01/g;' | \
+ sed 's/\\xf8/\\\\\\xf8/g;' | \
+ sed 's/\\x00$/\\x0a/;s/^/printf "/;s/$/"/' | sh > $PROGMEM.var
+cat $PROGMEM.var | sed 's/\r/\n/g' |sed -E 's/^[0-9a-f]{8} [^ ]* //' >$PROGMEM.txt
+
+echo "progmem.sh finished" >&2
+
 exit 0
\ No newline at end of file
diff --git a/lang/textaddr.sh b/lang/textaddr.sh
index 46b2123c2..2556f7417 100644
--- a/lang/textaddr.sh
+++ b/lang/textaddr.sh
@@ -1,68 +1,68 @@
-#!/bin/sh
-# textaddr.sh - multi-language support low level script
-#  for compiling progmem1.var and lang_en.txt files
-#  to textaddr.txt file (mapping of progmem addreses to text idenifiers)
-#
-# Input files:
-#  progmem1.var
-#  lang_en.txt
-#
-# Output files:
-#  textaddr.txt
-#
-#
-# Dscription of process:
-#  check if input files exists
-#  create sorted list of strings from progmem1.var and lang_en.txt
-#  lines from progmem1.var will contain addres (8 chars) and english text
-#  lines from lang_en.txt will contain linenumber and english text
-#  after sort this will generate pairs of lines (line from progmem1 first)
-#  result of sort is compiled with simple script and stored into file textaddr.txt
-#
-
-echo "textaddr.sh started" >&2
-
-if [ ! -e progmem1.var ]; then echo 'textaddr.sh - file progmem1.var not found!' >&2; exit 1; fi 
-if [ ! -e lang_en.txt ]; then echo 'textaddr.sh - file lang_en.txt not found!' >&2; exit 1; fi 
-addr=''
-text=''
-(cat progmem1.var | sed -E "s/^([^ ]*) ([^ ]*) (.*)/\1 \"\3\"/";\
- cat lang_en.txt | sed "/^$/d;/^#/d" | sed = | sed '{N;s/\n/ /}') |\
- sort -k2 |\
- sed "s/\\\/\\\\\\\/g" | while read num txt; do
- if [ ${#num} -eq 8 ]; then
-  if [ -z "$addr" ]; then
-   addr=$num
-  else
-   if [ "$text" == "$txt" ]; then
-    addr="$addr $num"
-   else
-    echo "ADDR NF $addr $text"
-    addr=$num
-   fi
-  fi
-  text=$txt   
- else
-  if [ -z "$addr" ]; then
-   echo "TEXT NF $num $txt"
-  else
-   if [ "$text" == "$txt" ]; then
-    if [ ${#addr} -eq 8 ]; then
-     echo "ADDR OK $addr $num"
-    else
-     echo "$addr" | sed "s/ /\n/g" | while read ad; do
-      echo "ADDR OK $ad $num"
-     done
-    fi
-    addr=''
-    text=''
-   else
-    echo "TEXT NF $num $txt"
-   fi
-  fi
- fi
-done > textaddr.txt
-
-echo "textaddr.sh finished" >&2
-
+#!/bin/sh
+# textaddr.sh - multi-language support low level script
+#  for compiling progmem1.var and lang_en.txt files
+#  to textaddr.txt file (mapping of progmem addreses to text idenifiers)
+#
+# Input files:
+#  progmem1.var
+#  lang_en.txt
+#
+# Output files:
+#  textaddr.txt
+#
+#
+# Dscription of process:
+#  check if input files exists
+#  create sorted list of strings from progmem1.var and lang_en.txt
+#  lines from progmem1.var will contain addres (8 chars) and english text
+#  lines from lang_en.txt will contain linenumber and english text
+#  after sort this will generate pairs of lines (line from progmem1 first)
+#  result of sort is compiled with simple script and stored into file textaddr.txt
+#
+
+echo "textaddr.sh started" >&2
+
+if [ ! -e progmem1.var ]; then echo 'textaddr.sh - file progmem1.var not found!' >&2; exit 1; fi 
+if [ ! -e lang_en.txt ]; then echo 'textaddr.sh - file lang_en.txt not found!' >&2; exit 1; fi 
+addr=''
+text=''
+(cat progmem1.var | sed -E "s/^([^ ]*) ([^ ]*) (.*)/\1 \"\3\"/";\
+ cat lang_en.txt | sed "/^$/d;/^#/d" | sed = | sed '{N;s/\n/ /}') |\
+ sort -k2 |\
+ sed "s/\\\/\\\\\\\/g" | while read num txt; do
+ if [ ${#num} -eq 8 ]; then
+  if [ -z "$addr" ]; then
+   addr=$num
+  else
+   if [ "$text" == "$txt" ]; then
+    addr="$addr $num"
+   else
+    echo "ADDR NF $addr $text"
+    addr=$num
+   fi
+  fi
+  text=$txt   
+ else
+  if [ -z "$addr" ]; then
+   echo "TEXT NF $num $txt"
+  else
+   if [ "$text" == "$txt" ]; then
+    if [ ${#addr} -eq 8 ]; then
+     echo "ADDR OK $addr $num"
+    else
+     echo "$addr" | sed "s/ /\n/g" | while read ad; do
+      echo "ADDR OK $ad $num"
+     done
+    fi
+    addr=''
+    text=''
+   else
+    echo "TEXT NF $num $txt"
+   fi
+  fi
+ fi
+done > textaddr.txt
+
+echo "textaddr.sh finished" >&2
+
 exit 0
\ No newline at end of file
diff --git a/lang/update_lang.sh b/lang/update_lang.sh
index 7c5c90d00..10789f995 100644
--- a/lang/update_lang.sh
+++ b/lang/update_lang.sh
@@ -1,68 +1,68 @@
-#!/bin/sh
-# update_lang.sh - multi-language support low level script
-#  for updating secondary language in binary file
-#
-# AVR gcc tools used:
-OBJCOPY=C:/arduino-1.6.8/hardware/tools/avr/bin/avr-objcopy.exe
-#
-# Selected language:
-LANG=$1
-if [ -z "$LANG" ]; then LANG='cz'; fi
-#
-
-function finish
-{
- echo
- if [ "$1" == "0" ]; then
-  echo "update_lang.sh finished with success" >&2
- else
-  echo "update_lang.sh finished with errors!" >&2
- fi
- case "$-" in
-  *i*) echo "press enter key"; read ;;
- esac
- exit $1
-}
-
-echo "update_lang.sh started" >&2
-echo "selected language=$LANG" >&2
-
-echo -n " checking files..." >&2
-if [ ! -e text.sym ]; then echo "NG!  file text.sym not found!" >&2; finish 1; fi
-if [ ! -e lang_$LANG.bin ]; then echo "NG!  file lang_$LANG.bin not found!" >&2; finish 1; fi
-if [ ! -e firmware.bin ]; then echo "NG!  file firmware.bin not found!" >&2; finish 1; fi
-echo "OK" >&2
-
-echo -n " checking symbols..." >&2
-#find symbol _SEC_LANG in section '.text'
-sec_lang=$(cat text.sym | grep -E "\b_SEC_LANG\b")
-if [ -z "$sec_lang" ]; then echo "NG!\n  symbol _SEC_LANG not found!" >&2; finish 1; fi
-echo "OK" >&2
-
-echo " calculating vars:" >&2
-#get addres and size
-sec_lang_addr='0x'$(echo $sec_lang | cut -f1 -d' ')
-sec_lang_size='0x'$(echo $sec_lang | cut -f2 -d' ')
-echo "  sec_lang_addr   =$sec_lang_addr" >&2
-echo "  sec_lang_size   =$sec_lang_size" >&2
-#calculate lang_table_addr (aligned to 256byte page)
-lang_table_addr=$((256*$((($sec_lang_addr + 255) / 256))))
-printf "  lang_table_addr =0x%04x\n" $lang_table_addr >&2
-#calculate lang_table_size
-lang_table_size=$((256*$((($sec_lang_size - ($lang_table_addr - $sec_lang_addr))/256))))
-printf "  lang_table_size =0x%04x (=%d bytes)\n" $lang_table_size $lang_table_size >&2
-
-#get lang_xx.bin file size
-lang_file_size=$(wc -c lang_$LANG.bin | cut -f1 -d' ')
-printf "  lang_file_size  =0x%04x (=%d bytes)\n" $lang_file_size $lang_file_size >&2
-
-if [ $lang_file_size -gt $lang_table_size ]; then echo "Lanaguage binary file size too big!"; finish 1; fi
-
-echo "updating 'firmware.bin'..." >&2
-dd if=lang_$LANG.bin of=firmware.bin bs=1 seek=$lang_table_addr conv=notrunc 2>/dev/null
-
-#convert bin to hex
-echo "converting to hex..." >&2
-$OBJCOPY -I binary -O ihex ./firmware.bin ./firmware.hex
-
-finish 0
+#!/bin/sh
+# update_lang.sh - multi-language support low level script
+#  for updating secondary language in binary file
+#
+# AVR gcc tools used:
+OBJCOPY=C:/arduino-1.6.8/hardware/tools/avr/bin/avr-objcopy.exe
+#
+# Selected language:
+LANG=$1
+if [ -z "$LANG" ]; then LANG='cz'; fi
+#
+
+function finish
+{
+ echo
+ if [ "$1" == "0" ]; then
+  echo "update_lang.sh finished with success" >&2
+ else
+  echo "update_lang.sh finished with errors!" >&2
+ fi
+ case "$-" in
+  *i*) echo "press enter key"; read ;;
+ esac
+ exit $1
+}
+
+echo "update_lang.sh started" >&2
+echo "selected language=$LANG" >&2
+
+echo -n " checking files..." >&2
+if [ ! -e text.sym ]; then echo "NG!  file text.sym not found!" >&2; finish 1; fi
+if [ ! -e lang_$LANG.bin ]; then echo "NG!  file lang_$LANG.bin not found!" >&2; finish 1; fi
+if [ ! -e firmware.bin ]; then echo "NG!  file firmware.bin not found!" >&2; finish 1; fi
+echo "OK" >&2
+
+echo -n " checking symbols..." >&2
+#find symbol _SEC_LANG in section '.text'
+sec_lang=$(cat text.sym | grep -E "\b_SEC_LANG\b")
+if [ -z "$sec_lang" ]; then echo "NG!\n  symbol _SEC_LANG not found!" >&2; finish 1; fi
+echo "OK" >&2
+
+echo " calculating vars:" >&2
+#get addres and size
+sec_lang_addr='0x'$(echo $sec_lang | cut -f1 -d' ')
+sec_lang_size='0x'$(echo $sec_lang | cut -f2 -d' ')
+echo "  sec_lang_addr   =$sec_lang_addr" >&2
+echo "  sec_lang_size   =$sec_lang_size" >&2
+#calculate lang_table_addr (aligned to 256byte page)
+lang_table_addr=$((256*$((($sec_lang_addr + 255) / 256))))
+printf "  lang_table_addr =0x%04x\n" $lang_table_addr >&2
+#calculate lang_table_size
+lang_table_size=$((256*$((($sec_lang_size - ($lang_table_addr - $sec_lang_addr))/256))))
+printf "  lang_table_size =0x%04x (=%d bytes)\n" $lang_table_size $lang_table_size >&2
+
+#get lang_xx.bin file size
+lang_file_size=$(wc -c lang_$LANG.bin | cut -f1 -d' ')
+printf "  lang_file_size  =0x%04x (=%d bytes)\n" $lang_file_size $lang_file_size >&2
+
+if [ $lang_file_size -gt $lang_table_size ]; then echo "Lanaguage binary file size too big!"; finish 1; fi
+
+echo "updating 'firmware.bin'..." >&2
+dd if=lang_$LANG.bin of=firmware.bin bs=1 seek=$lang_table_addr conv=notrunc 2>/dev/null
+
+#convert bin to hex
+echo "converting to hex..." >&2
+$OBJCOPY -I binary -O ihex ./firmware.bin ./firmware.hex
+
+finish 0