Added LF frequency adjustments from d18c7db, cleaned up code,

typo fixes in iso14443a code, added the missing "tools" directory,
added initial elements for online/offline detection for commands.

tools/merge-srec.pl

@@ -0,0 +1,18 @@
+# merge the code that initially executes out of flash with the RAM image
+
+($flashFile, $ramFile) = @ARGV;
+
+open(FLASH, $flashFile) or die "$flashFile: $!\n";
+
+while(<FLASH>) {
+	print if /^S3/;
+}
+
+open(RAM, $ramFile) or die "$ramFile: $!\n";
+
+while(<RAM>) {
+	if(/^S3(..)(........)(.*)/) {
+		$addr = sprintf('%08X', hex($2) - 0x00200000 + 0x200);
+		print "S3$1$addr$3\n";
+	}
+}

tools/rbt2c.pl

@@ -0,0 +1,39 @@
+#!/usr/bin/perl
+
+# This tool converts a Xilinx xxx.rbt FPGA bitstream to a table that will
+# compile as C source code. The output format is DWORDs, MSB first.
+
+print "// Generated by rbt2c.pl, do not edit!\n\n";
+
+for(1..7) {
+	chomp($_ = <>);
+	print "//// $_\n";
+}
+
+print <<EOT;
+
+#include <proxmark3.h>
+
+const DWORD FpgaImage[] = {
+EOT
+
+while(<>) {
+	chomp;
+	$v = 0;
+	for $b (split(//, $_)) {
+		$v <<= 1;
+		if($b eq '1') {
+			$v |= 1;
+		} elsif($b ne '0') {
+			die;
+		}
+	}
+	printf("\t0x%08x,\n", $v);
+}
+
+print <<EOT;
+};
+
+const DWORD FpgaImageLen = sizeof(FpgaImage) / sizeof(FpgaImage[0]);
+
+EOT

tools/srecswap.pl

@@ -0,0 +1,35 @@
+#!/usr/bin/perl
+
+# endian-swap S records; we need this because the JTAG tools we're using
+# expect the memory image in byte-swapped format
+#
+# Jonathan Westhues, April 2004
+
+if(@ARGV == 0) {
+	die "usage: $0 file-to-endian-swap.s19 > out.s19\n";
+}
+
+while(<>) {
+	chomp;
+
+	if(/^S0/) {
+		next;
+	}
+	if(/^S7/) {
+		print "$_\n";
+		next;
+	}
+
+	if(not /^S3(..)(........)(.*)(..)$/) {
+		die "bad S record at line $.\n";
+	}
+
+	$data = $3;
+	$checksum = $4;
+
+	print "S3$1$2";
+	while($data =~ m#(..)(..)(..)(..)#g) {
+		print "$4$3$2$1";
+	}
+	print "$checksum\n";
+}