Created
April 10, 2022 11:31
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rotates character map for a 7 segment display
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#!/usr/bin/perl | |
# rotates a character map for an 8 segment display so | |
# that you can generate a character map for an | |
# upside down display. | |
# | |
# Used to make a header, kept in case I need to rotate something else? | |
#my @map = (0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f, 0x77, 0x7f, 0x7C, 0x39, 0x58, 0x3f, 0x5E, 0x79, 0x71, 0x7d, 0x76, 0x74, 0x06, 0x1f, 0x76, 0x38, 0x06, 0x54, 0x3f, 0x5c, 0x73, 0x50, 0x6d, 0x3e, 0x3e, 0x66, 0x5b, 0x40, 0x08, 0x00); | |
my %map = ( | |
'0' => 0x3f, | |
'1' => 0x06, | |
'2' => 0x5b, | |
'3' => 0x4f, | |
'4' => 0x66, | |
'5' => 0x6d, | |
'6' => 0x7d, | |
'7' => 0x07, | |
'8' => 0x7f, | |
'9' => 0x6f, | |
'A' => 0x77, | |
'B' => 0x7f, | |
'b' => 0x7C, | |
'C' => 0x39, | |
'c' => 0x58, | |
'D' => 0x3f, | |
'd' => 0x5E, | |
'E' => 0x79, | |
'F' => 0x71, | |
'G' => 0x7d, | |
'H' => 0x76, | |
'h' => 0x74, | |
'I' => 0x06, | |
'J' => 0x1f, | |
'K' => 0x76, | |
'L' => 0x38, | |
'l' => 0x06, | |
'n' => 0x54, | |
'O' => 0x3f, | |
'o' => 0x5c, | |
'P' => 0x73, | |
'r' => 0x50, | |
'S' => 0x6d, | |
'U' => 0x3e, | |
'V' => 0x3e, | |
'Y' => 0x66, | |
'Z' => 0x5b, | |
'-' => 0x40, | |
'_' => 0x08, | |
' ' => 0x00 | |
); | |
foreach $char (sort keys %map) { | |
print "'$char': " . conv($map{$char}) . "\n"; | |
#print "'$char' => " . sprintf('%08b', $map{$char}) . "\n"; | |
} | |
sub conv { | |
my @in = split //, sprintf '%08b', shift(@_); | |
return "0x" . sprintf('%02X', eval "0b" . join('', $in[0], $in[1], $in[5], $in[6], $in[7], $in[2], $in[3], $in[4])); | |
} |
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