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jonmagic/seconds.csv

Last active December 8, 2015 10:38
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This is binary data captured from a car stereo and it's companion cd changer. The stereo updates it's screen with the cd track minutes and "seconds". Each row below corresponds to the "seconds". Column 1 is the seconds, 2 is binary, 3 is 2 inverted. The goal is figuring out how to generate the seconds from 0's & 1's without the table below.
Raw
seconds.csv
seconds message inverted-message
4 110 001
5 00101 11010
6 10100 01011
7 01100 10011
8 11101 00010
9 00011 11100
10 10010 01101
11 0000101 1111010
12 1000100 0111011
13 0100100 1011011
14 1100101 0011010
15 0010100 1101011
16 1010101 0101010
17 0110101 1001010
18 1110100 0001011
19 0001100 1110011
20 1001101 0110010
21 0000011 1111100
22 1000010 0111101
23 0100010 1011101
24 1100011 0011100
25 0010010 1101101
26 1010011 0101100
27 0110011 1001100
28 1110010 0001101
29 0001010 1110101
30 1001011 0110100
31 0000110 1111001
32 1000111 0111000
33 0100111 1011000
34 1100110 0011001
35 0010111 1101000
36 1010110 0101001
37 0110110 1001001
38 1110111 0001000
39 0001111 1110000
40 1001110 0110001
41 000000101 111111010
42 100000100 011111011
43 010000100 101111011
44 110000101 001111010
45 001000100 110111011
46 101000101 010111010
47 011000101 100111010
48 111000100 000111011
49 000100100 111011011
50 100100101 011011010
51 000010100 111101011
52 100010101 011101010
53 010010101 101101010
54 110010100 001101011
55 001010101 110101010
56 101010100 010101011
57 011010100 100101011
58 111010101 000101010
59 000110101 111001010
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jonmagic commented Dec 8, 2015

I removed the 16bit prefix 0100011010010010 for each of these messages (inverted that would be 1011100101101101).

The stereo is an AC Delco from the 90's and I believe the cd changer is as well.

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