/[RFID]/3m-810.pl
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 16 by dpavlin, Thu Oct 2 22:53:57 2008 UTC revision 18 by dpavlin, Fri Oct 3 12:31:58 2008 UTC
# Line 124  sub read_tag { Line 124  sub read_tag {
124          print "read_tag $tag\n";          print "read_tag $tag\n";
125          return if $read_cached->{ $tag }++;          return if $read_cached->{ $tag }++;
126    
127          cmd(    "D6 00  0D  02      $tag   00   03     1CC4", 'read offset: 0 blocks: 3' );          cmd(    "D6 00  0D  02      $tag   00   03     1CC4", 'read $tag offset: 0 blocks: 3',
128                            "D6 00  0F  FE  00 00  05 01   $tag    941A", "$tag ready?", sub {
129    dispatch(       "D6 00  1F  02 00   $tag   ", sub { # 03   00 00   04 11 00 01   01 00   31 32 33 34   02 00   35 36 37 38    531F\n";
130                            my $rest = shift || die "no rest?";
131                            warn "## DATA ", dump( $rest ) if $debug;
132                            my $blocks = ord(substr($rest,0,1));
133                            my @data;
134                            foreach my $nr ( 0 .. $blocks - 1 ) {
135                                    my $block = substr( $rest, 1 + $nr * 6, 6 );
136                                    warn "## block ",as_hex( $block ) if $debug;
137                                    my $ord   = unpack('v',substr( $block, 0, 2 ));
138                                    die "got block $ord, expected block $nr from ",dump( $block ) if $ord != $nr;
139                                    my $data  = substr( $block, 2 );
140                                    die "data payload should be 4 bytes" if length($data) != 4;
141                                    warn sprintf "## tag %08s %02d %s |%-4s|\n", $tag, $ord, as_hex( $data ), $data;
142                                    $data[ $ord ] = $data;
143                            }
144                            $read_cached->{ $tag } = join('', @data);
145                            print "DATA $tag ",dump( $read_cached->{ $tag } ), "\n";
146                    })
147            });
148    
149          #        D6 00  1F  02 00   $tag   03   00 00   04 11 00 01   01 00   30 30 30 30   02 00   30 30 30 30    E5F4          #        D6 00  1F  02 00   $tag   03   00 00   04 11 00 01   01 00   30 30 30 30   02 00   30 30 30 30    E5F4
         warn "?? D6 00  1F  02 00   $tag   03   00 00   04 11 00 01   01 00   31 32 33 34   02 00   35 36 37 38    531F\n";  
150  if (0) {  if (0) {
151          cmd(    "D6 00  0D  02      $tag   03   04     3970", 'read offset: 3 blocks: 4' );          cmd(    "D6 00  0D  02      $tag   03   04     3970", 'read offset: 3 blocks: 4' );
152    
# Line 169  sub writechunk Line 188  sub writechunk
188  {  {
189          my $str=shift;          my $str=shift;
190          my $count = $port->write($str);          my $count = $port->write($str);
191          print "#> ", as_hex( $str ), "\t[$count]\n";          print "#> ", as_hex( $str ), "\t[$count]" if $debug;
192  }  }
193    
194  sub as_hex {  sub as_hex {
# Line 256  sub checksum { Line 275  sub checksum {
275          warn "## checksum ",dump( $bytes, $xor, $checksum ) if $debug;          warn "## checksum ",dump( $bytes, $xor, $checksum ) if $debug;
276    
277          my $len = ord(substr($bytes,2,1));          my $len = ord(substr($bytes,2,1));
278          my $len_real = length($bytes);          my $len_real = length($bytes) - 1;
279          print "length wrong: $len_real != $len\n" if $len_real != $len;  
280            if ( $len_real != $len ) {
281                    print "length wrong: $len_real != $len\n";
282                    $bytes = substr($bytes,0,2) . chr($len_real) . substr($bytes,4);
283            }
284    
285          if ( defined $checksum && $xor ne $checksum ) {          if ( defined $checksum && $xor ne $checksum ) {
286                  print "checksum doesn't match: ", as_hex($xor), " != ", as_hex($checksum), " data: ", as_hex($bytes), "\n";                  print "checksum doesn't match: ", as_hex($xor), " != ", as_hex($checksum), " data: ", as_hex($bytes), "\n";
# Line 297  sub readchunk { Line 320  sub readchunk {
320  sub str2bytes {  sub str2bytes {
321          my $str = shift || confess "no str?";          my $str = shift || confess "no str?";
322          my $b = $str;          my $b = $str;
323          $b =~ s/\s+(\S\S)(\S\S)+\s*/ $1 $2/;    # fix checksum          $b =~ s/\s+//g;
324          $b =~ s/\s+$//;          $b =~ s/(..)/\\x$1/g;
325          $b =~ s/\s+/\\x/g;          $b = "\"$b\"";
         $b = '"\x' . $b . '"';  
326          my $bytes = eval $b;          my $bytes = eval $b;
327          die $@ if $@;          die $@ if $@;
328          warn "## str2bytes( $str ) => $b => ",as_hex($bytes) if $debug;          warn "## str2bytes( $str ) => $b => ",as_hex($bytes) if $debug;
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