trivia
- old NC-maschines might use EIA or ISO 'paper-tape' encoding on serial-communication
links
conversion charts
| char |
EIA |
|
ASCII |
|
ISO |
|
|
remark
|
|
(hex) |
(dec) |
(hex) |
(dec) |
(hex) |
(dec) |
|
|
pySerial
ubuntu
prerequisites
virtual null-modem
hack encodings
""" Python Character Mapping Codec 'ISO_paper tape'
see https://bastelbude.grade.de/mediawiki/index.php?title=EIA-ASCII-ISO_encoding for details
valid:
[BACKSPACE] [HORIZONTAL TABULATION] [LINE FEED] [CARRIAGE RETURN] [SPACE]
$ % & ( ) + - . /
0 1 2 3 4 5 6 7 8 9
: = @
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
"""#"
import codecs
### Codec APIs
class Codec(codecs.Codec):
def encode(self,input,errors='strict'):
return codecs.charmap_encode(input,errors,encoding_map)
def decode(self,input,errors='strict'):
return codecs.charmap_decode(input,errors,decoding_map)
class IncrementalEncoder(codecs.IncrementalEncoder):
def encode(self, input, final=False):
return codecs.charmap_encode(input,self.errors,encoding_map)[0]
class IncrementalDecoder(codecs.IncrementalDecoder):
def decode(self, input, final=False):
return codecs.charmap_decode(input,self.errors,decoding_map)[0]
class StreamWriter(Codec,codecs.StreamWriter):
pass
class StreamReader(Codec,codecs.StreamReader):
pass
### encodings module API
def getregentry():
return codecs.CodecInfo(
name='iso-paper',
encode=Codec().encode,
decode=Codec().decode,
incrementalencoder=IncrementalEncoder,
incrementaldecoder=IncrementalDecoder,
streamwriter=StreamWriter,
streamreader=StreamReader,
)
### Decoding Map
decoding_map = codecs.make_identity_dict(range(256))
decoding_map.update({
0x0008: None, # needs to be set for encoding_map
0x000d: None, # needs to be set for encoding_map
0x0020: None, # needs to be set for encoding_map
0x0025: None, # needs to be set for encoding_map
0x0026: None, # needs to be set for encoding_map
0x0029: None, # needs to be set for encoding_map
0x002c: None, # needs to be set for encoding_map
0x002f: None, # needs to be set for encoding_map
0x0031: None, # needs to be set for encoding_map
0x0032: None, # needs to be set for encoding_map
0x0034: None, # needs to be set for encoding_map
0x0037: None, # needs to be set for encoding_map
0x0038: None, # needs to be set for encoding_map
0x003d: None, # needs to be set for encoding_map
0x0040: None, # needs to be set for encoding_map
0x0043: None, # needs to be set for encoding_map
0x0045: None, # needs to be set for encoding_map
0x0046: None, # needs to be set for encoding_map
0x0049: None, # needs to be set for encoding_map
0x004a: None, # needs to be set for encoding_map
0x004c: None, # needs to be set for encoding_map
0x004f: None, # needs to be set for encoding_map
0x0051: None, # needs to be set for encoding_map
0x0052: None, # needs to be set for encoding_map
0x0054: None, # needs to be set for encoding_map
0x0057: None, # needs to be set for encoding_map
0x0058: None, # needs to be set for encoding_map
0x0088: 0x0008, # BACKSPACE
0x0009: 0x0009, # HORIZONTAL TABULATION
0x000A: 0x000A, # LINE FEED
0x008D: 0x000D, # CARRIAGE RETURN
0x00A0: 0x0020, # SPACE
0x0024: 0x0024, # DOLLAR SIGN
0x00A5: 0x0025, # PERCENT SIGN
0x00A6: 0x0026, # AMPERSAND
0x0028: 0x0028, # LEFT PARENTHESIS
0x00A9: 0x0029, # RIGHT PARENTHESIS
0x002B: 0x002B, # PLUS SIGN
0x002D: 0x002D, # HYPHEN-MINUS
0x002E: 0x002E, # FULL STOP
0x00AF: 0x002F, # SOLIDUS
0x0030: 0x0030, # DIGIT ZERO
0x00B1: 0x0031, # DIGIT ONE
0x00B2: 0x0032, # DIGIT TWO
0x0033: 0x0033, # DIGIT THREE
0x00B4: 0x0034, # DIGIT FOUR
0x0035: 0x0035, # DIGIT FIVE
0x0036: 0x0036, # DIGIT SIX
0x00B7: 0x0037, # DIGIT SEVEN
0x00B8: 0x0038, # DIGIT EIGHT
0x0039: 0x0039, # DIGIT NINE
0x003A: 0x003A, # COLON
0x00BD: 0x003D, # EQUALS SIGN
0x00C0: 0x0040, # COMMERCIAL AT
0x0041: 0x0041, # LATIN CAPITAL LETTER A
0x0042: 0x0042, # LATIN CAPITAL LETTER B
0x00C3: 0x0043, # LATIN CAPITAL LETTER C
0x0044: 0x0044, # LATIN CAPITAL LETTER D
0x00C5: 0x0045, # LATIN CAPITAL LETTER E
0x00C6: 0x0046, # LATIN CAPITAL LETTER F
0x0047: 0x0047, # LATIN CAPITAL LETTER G
0x0048: 0x0048, # LATIN CAPITAL LETTER H
0x00C9: 0x0049, # LATIN CAPITAL LETTER I
0x00CA: 0x004A, # LATIN CAPITAL LETTER J
0x004B: 0x004B, # LATIN CAPITAL LETTER K
0x00CC: 0x004C, # LATIN CAPITAL LETTER L
0x004D: 0x004D, # LATIN CAPITAL LETTER M
0x004E: 0x004E, # LATIN CAPITAL LETTER N
0x00CF: 0x004F, # LATIN CAPITAL LETTER O
0x0050: 0x0050, # LATIN CAPITAL LETTER P
0x00D1: 0x0051, # LATIN CAPITAL LETTER Q
0x00D2: 0x0052, # LATIN CAPITAL LETTER R
0x0053: 0x0053, # LATIN CAPITAL LETTER S
0x00D4: 0x0054, # LATIN CAPITAL LETTER T
0x0055: 0x0055, # LATIN CAPITAL LETTER U
0x0056: 0x0056, # LATIN CAPITAL LETTER V
0x00D7: 0x0057, # LATIN CAPITAL LETTER W
0x00D8: 0x0058, # LATIN CAPITAL LETTER X
0x0059: 0x0059, # LATIN CAPITAL LETTER Y
0x005A: 0x005A, # LATIN CAPITAL LETTER Z
})
### Encoding Map
encoding_map = codecs.make_encoding_map(decoding_map)
run miniterm
windows
prerequisites
virtual null-modem
reference
hack encodings
run miniterm
