[Feature]Upload Modem source code

Change-Id: Id4294f30faced84d3e6fd6d5e61e1111bf287a37
diff --git a/mcu/tools/splitfile.pl b/mcu/tools/splitfile.pl
new file mode 100644
index 0000000..15f94ee
--- /dev/null
+++ b/mcu/tools/splitfile.pl
@@ -0,0 +1,16 @@
+

+$afile=$ARGV[0];

+$ifile=$ARGV[1];

+#print "$afile\n";

+$str = `type $ifile`;

+#print "$str\n";

+#$str =~ s/ /\n/g;

+#print "$str\n";

+@outstr=split(/ /,$str);

+open NEWF,">$afile";

+foreach (@outstr) {

+	next if ($_!~ m/^\-[DI]/);

+	print NEWF "$_\n";

+}

+#print NEWF $str;

+close NEWF;