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Original thread:
Post 14 made on Monday March 19, 2007 at 10:59
johnsfine
IR Expert
Joined:
Posts:
September 2002
5,159
On March 16, 2007 at 18:31, bluefin684 said...
How do I convert the rest of
these. I am not that familiar with hex, so I am not real
sure how you arrived at "80F1 & 40F1".

In theory you convert from hex to binary, then reverse the bits within each set of eight, then convert back to hex. But that might not be enough detail since you're not familiar with hex. This is a common enough transformation in dealing with manufacturer supplied IR documentation that I do it in my head directly from hex to bit reversed hex without really thinking about the binary. So I guess it's easier to just do it for you than explain further:

Power (toggle) -- 1C7A 385E
PowerOn -- 018F 80F1
Power Off -- 028F 40F1
Mode -- 2B7A D45E
Video Mode On -- 048F 20F1
Video Mode Off -- 038F C0F1
Up -- 3A7A 5C5E
Down -- 497A 925E
Left -- 587A 1A5E
Right -- 677A E65E
Enter -- C04F 03F2
Volume Up -- 504F 0AF2
Volume Down -- 304F 0CF2
Mute -- B27A 4D5E
Track - / Rewind -- 904F 09F2
Track + / FWD -- 604F 06F2
Fast Forward 857A A15E
Rewind -- 767A 6E5E
Random -- 947A 295E
Random On -- 078F E0F1
Screensaver -- C17A 835E
Screensaver On -- 088F 10F1
Screensaver Off -- 098F 90F1
Repeat -- A37A C55E
Home IR (Brings you back to the main page)058F A0F1
Key Command Repeat (used as key repeat)0001 I think that's a documentation error, misdecribing a different aspect of the signal. But if it were an actual signal, it would be 0080

Edit, I noticed and fixed a typo above, so maybe I should explain the translation rules in case there is another typo:

First, translate individual digits as follows: 0, 6, 9 and F are unchanged. Any other digit should be found in one of the pairs below and replaced with the other member of the same pair:
1 <-> 8
2 <-> 4
3 <-> C
5 <-> A
7 <-> E
B <-> D

Second, swap the first and second positions and swap the third and fourth.

Last edited by johnsfine on March 20, 2007 13:54.


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