openocd jtag pin toggle

[x300-pci] / openocd-jtag-boundary-scan.pl

diff --git a/openocd-jtag-boundary-scan.pl b/openocd-jtag-boundary-scan.pl
index 001bb28..dafd874 100755 (executable)
--- a/openocd-jtag-boundary-scan.pl
+++ b/openocd-jtag-boundary-scan.pl
@@ -5,6 +5,7 @@ use strict;
 use autodie;
 use Data::Dump qw(dump);
 use IO::Socket::INET;
+use Storable;
 
 my $openocd_remote = shift @ARGV || 'picam:4444';
 
@@ -56,6 +57,7 @@ foreach my $map ( split(/\s*,\s*/, $pin_map) ) {
 }
 
 warn "# pin2io = ",dump( $pin2io );
+store \$pin2io, '/dev/shm/pin2io.storable';
 
 my @sort = sort {
        my $aa = $a; $aa =~ s/\D+//g;
@@ -63,11 +65,12 @@ my @sort = sort {
        $aa <=> $bb } keys %$io2bit;
 warn "# sort = ",dump(@sort);
 
+my $last_bits = '';
 sub print_io {
        my $bits = shift;
-       my $i = 0;
-#      foreach my $io ( @sort ) {
-       print "pin off io___ I C O | " x 4, $openocd_remote,"\n";
+       $bits = reverse $bits; # make substr work as expected
+
+       print "pin off io___ ICO prv | " x 4, $openocd_remote,"\n";
        foreach my $i ( 0 .. ($#$pin2io/4)-1 ) {
                foreach my $j ( 0 .. 3 ) {
                        #my $pin = ($i*4) + $j + 1; # rows
@@ -75,14 +78,17 @@ sub print_io {
                        my $io = $pin2io->[$pin];
                        my $o = $io2bit->{$io}->[0];
                        if ( defined $o ) {
-                               printf "%-3d %-3d %-5s %d %d %d | ", $pin, $o, $io, split(//, substr($bits, $o, 3));
+                               my $l = $b = substr($bits, $o, 3);
+                               $l = substr($last_bits,$o,3) if $last_bits;
+                               printf "%-3d %-3d %-5s %3s %3s | ", $pin, $o, $io, $b, $b ne $l ? $l : ''
                        } else {
-                               printf "%-3d ... %-5s       | ", $pin, $io;
+                               printf "%-3d ... %-5s %3s %3s | ", $pin, $io, '', '';
                        }
                }
                print "\n";
        }
        print "\n";
+       $last_bits = $bits;
 }
 
 #foreach my $h (qw(0 1 2 e f 10 11 12 1e 1f 20 30 40 50 100 200 1000)) {
@@ -144,7 +150,8 @@ sub diff_bits {
                        $o[$i].='>'.$n[$i];
                }
        }
-       return join('', @o);
+       my $diff = join('', @o);
+       print "# diff_bits $diff\n";
 }
 
 print "[press enter]\n";
@@ -163,7 +170,7 @@ if ( $cmd =~ /(\d+)=(\d)/ ) {
                . substr($BSR,$bit+3)
                ;
 
-       print diff_bits( $BSR, $b ), $/;
+       diff_bits( $BSR, $b ), $/;
 
        print $sock "irscan x300.tap 0x55\n"; # SAMPLE/PRELOAD
        print $sock "drscan x300.tap 288 0x", bin2hex($b), "\n";