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| sub write_map{
my ($name,$value) = @_;
$map_settings = 1;
my $hex = sprintf "%x", $name;
warn "WRITTING to $name ($hex) value $value";
&warn_write;
&writemap($name, $value);
#initiate values!
&writemap(0,7);
}
sub prepare_eeprom {
@mapcommand =('P', 'C', 'W', 'R', "\r", "\n"); # 0 1 2 3 4 5 6 7 8 9 10 11 12
my ($addr, $command) = @_;
$map_settings = 1;
$addr = '0';
$command = 3;
my ($error, $answer, $checksum, $data);
my ($a0, $a1, $a2);
my ($s0, $s1);
my ($d0, $d1);
my $temp;
return if ($port_not_opening);
$temp = $addr>>8;
$a0=&digit2ascii($temp);
$temp = ($addr>>4)&0x0F;
$a1=&digit2ascii($temp);
$temp = $addr&0x0F;
$a2=&digit2ascii($temp);
$mapcommand[4]=chr($a0);
$mapcommand[5]=chr($a1);
$mapcommand[6]=chr($a2);
$temp = $command>>4;
$d0 = &digit2ascii($temp);
$temp = $command&0x0F;
$d1 = &digit2ascii($temp);
my $sum = 0; $sum = $a0+$a1+$a2+$command; $sum =0xff-$sum; $sum++;
$temp = $sum>>4;
$s0=&digit2ascii($temp);
$temp = $sum&0x0F;
$s1=&digit2ascii($temp);
$mapcommand[7]=chr($d0);
$mapcommand[8]=chr($d1);
$mapcommand[9]=chr($s0);
$mapcommand[10]=chr($s1);
$mapcommand[11]="\r";
$mapcommand[12]="\n";
$answer="";
my $result = send_mapcommand_to_device(@mapcommand);
if ($result != 0) {
$error=2;
$port_not_opening = $port_in_use;
return 0xff;
}
($result, $answer) = &wait_device_response;
if ($result != 0){
$error=3;
$port_not_opening = $port_in_use;
}
chop ($answer);
chop ($answer);
if ($answer=~/MOk/ ) {
$temp = ord(substr($answer,3,1));
$a0=&ascii2digit($temp);
$temp = ord(substr($answer,3,1));
$a1=&ascii2digit($temp);
$data=($a0<<4)+$a1;
$error=0;
return $data;
} else {
$error=1;
$port_not_opening = $port_in_use;
}
}
sub writemap {
$map_settings = 1;
&prepare_eeprom;
@mapcommand =('P', 'C', 'W', 'R', '0', '0', '0', "\r", "\n"); # 0 1 2 3 4 5 6 7 8 9 10 11 12
my ($addr, $command) = @_;
my ($error, $answer, $checksum, $data);
my ($a0, $a1, $a2);
my ($s0, $s1);
my ($d0, $d1, $d2);
my $temp;
return if ($port_not_opening);
$temp = $addr>>8;
$a0=&digit2ascii($temp);
$temp = ($addr>>4)&0x0F;
$a1=&digit2ascii($temp);
$temp = $addr&0x0F;
$a2=&digit2ascii($temp);
$mapcommand[4]=chr($a0);
$mapcommand[5]=chr($a1);
$mapcommand[6]=chr($a2);
$temp = $command>>4;
$d0 = &digit2ascii($temp);
$temp = $command&0x0F;
$d1 = &digit2ascii($temp);
my $sum = 0; $sum = $a0+$a1+$a2+$command;
$sum = 255 - $sum;
$sum = $sum + 1;
my $shifted = ($sum>>4)&0x0f;
$s0=&digit2ascii($shifted);
$shifted = $sum & 0x0F;
$s1=&digit2ascii($shifted);
$mapcommand[7]=chr($d0);
$mapcommand[8]=chr($d1);
$mapcommand[9]=chr($s0);
$mapcommand[10]=chr($s1);
$mapcommand[11]="\r";
$mapcommand[12]="\n";
$answer="";
my $result = send_mapcommand_to_device(@mapcommand);
if ($result != 0) {
$error=2;
$port_not_opening = $port_in_use;
return 0xff;
}
($result, $answer) = &wait_device_response;
if ($result != 0){
$error=3;
#$port_not_opening = $port_in_use;
}
chop ($answer);
chop ($answer);
if ($answer=~/MOk/ ) {
$temp = ord(substr($answer,3,1));
$a0=&ascii2digit($temp);
$temp = ord(substr($answer,3,1));
$a1=&ascii2digit($temp);
$data=($a0<<4)+$a1;
$error=0;
return $data;
} else {
$error=1;
$port_not_opening = $port_in_use;
}
}
sub send_mapcommand_to_device {
my @mapcommand = @_;
my $length = @mapcommand;
#print "sending mapcommand to device: ", @mapcommand, "\n" if ($debug);
my ($count_in, $string_in);
my $ccnt = 0;
for (my $i=0; $i< $length; $i++) {
my $tosend = $mapcommand[$i];
if (!defined($PortObj)){
#print "sudden disconnect at send_mapcommand_to_device first! port_in_use=$port_in_use\n";
#$port_not_opening = 'ALL';
$port_not_opening = $port_in_use;
&connect;
last;
}
my $sent = $PortObj->write($tosend);
while(1){ #receive echo
$ccnt++;
($count_in, $string_in) = $PortObj->read(1); #read 1 byte
if (!defined($string_in)){
#print "sudden disconnect second ! port_in_use=$port_in_use\n";
$port_not_opening = $port_in_use;
&connect;
last;
}
last if ($ccnt > 250);
next if ($string_in eq 'M');
if ($count_in){
return (-1) if ($count_in !=1); #error - can;t receive the byte
}
last if ($string_in eq $tosend); #check if same char received, else continue while
}
}
return 0; #no error
}
sub wait_device_response {
my $answer = "";
my $ccnt = 0;
while(1) {
$ccnt++;
my ($count_in, $string_in) = $PortObj->read(1); #read 1 byte
unless (defined($string_in)){
#print "sudden disconnect second ! port_in_use=$port_in_use\n";
$port_not_opening = $port_in_use;
&connect;
last;
}
if ($count_in != 1) { #err , return anyway the string too
return (-1, $answer);
}
last if ($ccnt > 250);
$PortObj->write($string_in); #echo it
$answer .= $string_in;
return (0, $answer) if ($string_in eq "\n"); #exit ok, received string in answer
}
} |
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Сообщение от angstrom
