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91 lines
2.0 KiB
Perl
Executable File
91 lines
2.0 KiB
Perl
Executable File
#!/usr/bin/perl
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use strict;
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use warnings;
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use Device::SerialPort;
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use Time::HiRes qw(gettimeofday);
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sub pp($$);
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if(@ARGV != 4) {
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printf("Usage: perl serial.pl serial-device baudrate outfile initial-hex-msg\n");
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exit(1);
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}
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my $ser = $ARGV[0];
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my $baud = $ARGV[1];
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my $fil = $ARGV[2];
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my $hm = $ARGV[3];
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my $fd;
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open($fd, ">$fil") || die("Can't open $fil for writing\n");
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select $fd;
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$| = 1;
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my $serport = new Device::SerialPort ($ser);
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die "Can't open $ser: $!\n" if(!$serport);
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$serport->reset_error();
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$serport->baudrate($baud);
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$serport->databits(8);
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$serport->parity('none');
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$serport->stopbits(1);
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$serport->handshake('none');
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my $interval = 2.0; # Seconds
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my $nto = gettimeofday();
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my $nfound;
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$hm=~ s/ //g;
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$hm = pack('H*', $hm);
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while (1) {
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my ($rout, $rin) = ('', '');
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vec($rin, 0, 1) = 1; # stdin
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vec($rin, $serport->FILENO, 1) = 1;
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my $to = $nto - gettimeofday();
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if($to > 0) {
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$nfound = select($rout=$rin, undef, undef, $to);
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die("Select error $nfound / $!\n") if($nfound < 0);
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}
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if($to <= 0 || $nfound == 0) { # Timeout
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$serport->write($hm);
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pp("S>", $hm);
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$nto = gettimeofday() + $interval;
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}
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if(vec($rout, 0, 1)) {
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my $buf = <STDIN>;
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die "EOF on STDIN\n" if(!defined($buf) || length($buf) == 0);
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$buf=~ s/[ \r\n]//g;
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$buf = pack('H*', $buf);
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$serport->write($buf);
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pp("X>", $buf);
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}
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if(vec($rout, $serport->FILENO, 1)) {
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my $buf = $serport->input();
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die "EOF on $ser\n" if(!defined($buf) || length($buf) == 0);
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pp("S<", $buf);
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}
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}
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sub
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pp($$) {
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my ($prompt, $txt) = @_;
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my ($s, $ms) = gettimeofday();
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my @t = localtime($s);
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my $tim = sprintf("%02d:%02d:%02d.%03d", $t[2],$t[1],$t[0], $ms/1000);
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for(my $i = 0; $i < length($txt); $i += 16) {
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my $a = substr($txt, $i, 16);
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my $h = unpack("H*", $a);
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$a =~ s/[\r\n]/./g;
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$a =~ s/\P{IsPrint}/\./g;
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$h =~ s/(....)/$1 /g;
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printf $fd "%s %s %04d %-40s %s\n", $prompt, $tim, $i, $h, $a;
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}
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print $fd "\n";
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}
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