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)
BS	2A	42	08	8	88	136	BACKSPACE
HT	33	51	09	9	09	9	HORIZONTAL TABULATION
LF			0A	10	0A	10	LINE FEED	EOB in ASCII (ISO)
CR	80	128	0D	13	8D	141	CARRIAGE RETURN	EOB in EIA
	10	16	20	32	A0	160	SPACE
$	80	128	24	36	24	36	DOLLAR SIGN	EOB in EIA
%	5B	91	25	37	A5	165	PERCENT SIGN	EOR – Rewind Stop in ASCII
&	0E	14	26	38	A6	166	AMPERSAND
(	7C	124	28	40	28	40	LEFT PARENTHESIS
)	71	113	29	41	A9	169	RIGHT PARENTHESIS
,	3B	59	2C	44			COMMA
.	6B	107	2E	46	2E	46	FULL STOP
/	31	49	2F	47	AF	175	SOLIDUS
0	20	32	30	48	30	48	DIGIT ZERO
1	01	1	31	49	B1	177	DIGIT ONE
2	02	2	32	50	B2	178	DIGIT TWO
3	13	19	33	51	33	51	DIGIT THREE
4	04	4	34	52	B4	180	DIGIT FOUR
5	15	21	35	53	35	53	DIGIT FIVE
6	16	22	36	54	36	54	DIGIT SIX
7	07	7	37	55	B7	183	DIGIT SEVEN
8	08	8	38	56	B8	184	DIGIT EIGHT
9	19	25	39	57	39	57	DIGIT NINE
:	10	16	3A	58	3A	58	COLON
=	0B	11	3D	61	BD	189	EQUALS SIGN
@	6D	109	40	64	C0	192	COMMERCIAL AT
A	61	97	41	65	41	65	LATIN CAPITAL LETTER A
B	62	98	42	66	42	66	LATIN CAPITAL LETTER B
C	73	115	43	67	C3	195	LATIN CAPITAL LETTER C
D	64	100	44	68	44	68	LATIN CAPITAL LETTER D
E	75	117	45	69	C5	197	LATIN CAPITAL LETTER E
F	76	118	46	70	C6	198	LATIN CAPITAL LETTER F
G	67	103	47	71	47	71	LATIN CAPITAL LETTER G
H	68	104	48	72	48	72	LATIN CAPITAL LETTER H
I	79	121	49	73	C9	201	LATIN CAPITAL LETTER I
J	51	81	4A	74	CA	202	LATIN CAPITAL LETTER J
K	52	82	4B	75	4B	75	LATIN CAPITAL LETTER K
L	43	67	4C	76	CC	204	LATIN CAPITAL LETTER L
M	54	84	4D	77	4D	77	LATIN CAPITAL LETTER M
N	45	69	4E	78	4E	78	LATIN CAPITAL LETTER N
O	46	70	4F	79	CF	207	LATIN CAPITAL LETTER O
P	57	87	50	80	50	80	LATIN CAPITAL LETTER P
Q	58	88	51	81	D1	209	LATIN CAPITAL LETTER Q
R	49	73	52	82	D2	210	LATIN CAPITAL LETTER R
S	32	50	53	83	53	83	LATIN CAPITAL LETTER S
T	23	35	54	84	D4	212	LATIN CAPITAL LETTER T
U	34	52	55	85	55	85	LATIN CAPITAL LETTER U
V	25	37	56	86	56	86	LATIN CAPITAL LETTER V
W	26	38	57	87	D7	215	LATIN CAPITAL LETTER W
X	37	55	58	88	D8	216	LATIN CAPITAL LETTER X
Y	38	56	59	89	59	89	LATIN CAPITAL LETTER Y
Z	29	41	5A	90	5A	90	LATIN CAPITAL LETTER Z

pySerial

https://pyserial.readthedocs.io/en/latest/tools.html#module-serial.tools.miniterm

ubuntu

prerequisites

```
sudo apt-get install socat
```
```
sudo apt install python-pip
```
```
pip install pyserial
```

virtual null-modem

terminal[1]

sudo socat PTY,link=/dev/ttyS10 PTY,link=/dev/ttyS11

hack encodings

sudo cp usr/lip/python2.7/encodings/hp_roman8.py usr/lip/python2.7/encodings/iso_paper.py

edit iso_paper.py as needed ...

""" 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

terminal[2]

sudo python -m serial.tools.miniterm --echo --encoding hexlify

terminal[3]

sudo python -m serial.tools.miniterm --encoding iso-paper

windows

prerequisites

...

virtual null-modem

e.g. https://www.virtual-serial-port.org/de/articles/top-6-virtual-com-port-apps/#2
- install, set up and run in demo-mode

reference

https://i-logic.com/dncserver/
- install, set up and run in demo-mode

hack encodings

...

run miniterm

...

EIA-ASCII-ISO encoding

Contents

trivia

links

conversion charts

pySerial

ubuntu

prerequisites

virtual null-modem

hack encodings

run miniterm

windows

prerequisites

virtual null-modem

reference

hack encodings

run miniterm

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