EIA-ASCII-ISO encoding

trivia

• old NC-maschines might use EIA or ISO 'paper-tape' encoding on serial-communication

links

• https://www.grecosystems.com/wp-content/uploads/2015/04/CNCMinifileOM.pdf (appendix 'F', page 61-62)
• https://i-logic.com/serial/punchholes.htm
• https://i-logic.com/serial/eia.htm
• https://books.google.de/books?id=4bJJbIaOgcYC&lpg=PA12&ots=pwQCwkgdWm&dq=iso%20eia%20paper%20tape%20cnc&hl=de&pg=PA16#v=onepage&q=iso%20eia%20paper%20tape%20cnc&f=false

conversion charts

70

112

2B

43

2B

43

PLUSSIGN

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	HORIZONTALTABULATION
LF			0A	10	0A	10	LINEFEED	EOBinASCII(ISO)
CR	80	128	0D	13	8D	141	CARRIAGERETURN	EOBinEIA
	10	16	20	32	A0	160	SPACE
$	80	128	24	36	24	36	DOLLARSIGN	EOBinEIA
%	5B	91	25	37	A5	165	PERCENTSIGN	EOR–RewindStopinASCII
&	0E	14	26	38	A6	166	AMPERSAND
(	7C	124	28	40	28	40	LEFTPARENTHESIS
)	71	113	29	41	A9	169	RIGHTPARENTHESIS
,	3B	59	2C	44			COMMA
.	6B	107	2E	46	2E	46	FULLSTOP
/	31	49	2F	47	AF	175	SOLIDUS
0	20	32	30	48	30	48	DIGITZERO
1	01	1	31	49	B1	177	DIGITONE
2	02	2	32	50	B2	178	DIGITTWO
3	13	19	33	51	33	51	DIGITTHREE
4	04	4	34	52	B4	180	DIGITFOUR
5	15	21	35	53	35	53	DIGITFIVE
6	16	22	36	54	36	54	DIGITSIX
7	07	7	37	55	B7	183	DIGITSEVEN
8	08	8	38	56	B8	184	DIGITEIGHT
9	19	25	39	57	39	57	DIGITNINE
:	10	16	3A	58	3A	58	COLON
=	0B	11	3D	61	BD	189	EQUALSSIGN
@	6D	109	40	64	C0	192	COMMERCIALAT
A	61	97	41	65	41	65	LATINCAPITALLETTERA
B	62	98	42	66	42	66	LATINCAPITALLETTERB
C	73	115	43	67	C3	195	LATINCAPITALLETTERC
D	64	100	44	68	44	68	LATINCAPITALLETTERD
E	75	117	45	69	C5	197	LATINCAPITALLETTERE
F	76	118	46	70	C6	198	LATINCAPITALLETTERF
G	67	103	47	71	47	71	LATINCAPITALLETTERG
H	68	104	48	72	48	72	LATINCAPITALLETTERH
I	79	121	49	73	C9	201	LATINCAPITALLETTERI
J	51	81	4A	74	CA	202	LATINCAPITALLETTERJ
K	52	82	4B	75	4B	75	LATINCAPITALLETTERK
L	43	67	4C	76	CC	204	LATINCAPITALLETTERL
M	54	84	4D	77	4D	77	LATINCAPITALLETTERM
N	45	69	4E	78	4E	78	LATINCAPITALLETTERN
O	46	70	4F	79	CF	207	LATINCAPITALLETTERO
P	57	87	50	80	50	80	LATINCAPITALLETTERP
Q	58	88	51	81	D1	209	LATINCAPITALLETTERQ
R	49	73	52	82	D2	210	LATINCAPITALLETTERR
S	32	50	53	83	53	83	LATINCAPITALLETTERS
T	23	35	54	84	D4	212	LATINCAPITALLETTERT
U	34	52	55	85	55	85	LATINCAPITALLETTERU
V	25	37	56	86	56	86	LATINCAPITALLETTERV
W	26	38	57	87	D7	215	LATINCAPITALLETTERW
X	37	55	58	88	D8	216	LATINCAPITALLETTERX
Y	38	56	59	89	59	89	LATINCAPITALLETTERY
Z	29	41	5A	90	5A	90	LATINCAPITALLETTERZ

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 ...

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

• ...