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IR Code help - Audio Research
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Post 1 made on Friday June 5, 2009 at 00:18
TKuhl
Lurking Member
Joined:
Posts:
June 2009
1
I am having problems creating IR codes for a high end piece of equipment. The manufacturer sent me the following information, but i have not had any luck converting it into a .ccf hex format.

Phillips rc5 code
start code: 1,1, toggle
system code: 00111
38kHz carrier
(then, a chart, with "function, key, hex, d5 d4 d3 d2 d1 d0" across top)
cd 3 02h 0 0 0 0 1 0
tuner 4 03h 0 0 0 0 1 1
phono 5 04h 0 0 0 1 0 0
proc 26 19h 0 1 1 0 0 1
off 32 20 1 0 0 0 0 0
on 33 21 1 0 0 0 0 1
mute off 34 23 1 0 0 0 1 0
mute on 35 24 1 0 0 0 1 1

there are more codes, but this is all i NEED to complete this project.
Post 2 made on Friday June 5, 2009 at 02:00
Lyndel McGee
RC Moderator
Joined:
Posts:
August 2001
12,992
Are you using ProntoEdit4, Tonto, or TouchScreen Setup? If the last, then there's a special RC5 edit dialog where you enter System and Function for RC5 codes. Then, if you have setup Developer Mode, you can view the IR code data.
Daniel Tonks has published a utility in the files section that sets up this mode. Do a search in this forum for Developer Mode for more info.

In your case, you have a System Code in binary of 00111 which is decimal 7.

Then, for each of the other codes, deduce what is the decimal function number based on the 5 binary digits but they have been nice enough to totally confuse you by providing both decimal, hexadecimal, and binary representations on the same line.

binary 000010 (CD) is decimal 2 or hexadecimal 02h but they list it as 3 (the key).
000100 (Phono) is decimal 4 or hexadecimal 04h but they list it as 5(the key).
etc...
However, what is confusing is that off and on are listed such that the decimal values (the key) 32 and 33 match the binary representation.

mute off and mute are listed as 34 and 35 respectively but the hex representation (2nd number) a value of one higher than the decimal. That is, 34 decimal = 22 hexadecimal.

As a result of this, I cannot guarantee which codes/functions will be on or off by 1 as I'm not sure how 'key' correlates to hexadecimal function number that follows. So, I've generated codes below for what I think you will need.

0007 = System Code and last 4 digits are the function code in hexadecimal. If you don't know how to convert between decimal and hex, use Windows Calculator in scientific mode

5000 0000 0000 0001 0007 0002 - Function 2 (02h)
5000 0000 0000 0001 0007 0003 - Function 3 (03h)
5000 0000 0000 0001 0007 0004 - Function 4 (04h)
5000 0000 0000 0001 0007 0005 - Function 5 (05h)
5000 0000 0000 0001 0007 0019 - Function 25 (19h)
5000 0000 0000 0001 0007 001A - Function 26 (1Ah)

5000 0000 0000 0001 0007 0020 - Function 32 (20h)
5000 0000 0000 0001 0007 0021 - Function 33 (21h)
5000 0000 0000 0001 0007 0022 - Function 34 (22h)
5000 0000 0000 0001 0007 0023 - Function 35 (23h)
5000 0000 0000 0001 0007 0024 - Function 36 (24h)

Last edited by Lyndel McGee on June 5, 2009 02:07.
Lyndel McGee
Philips Pronto Addict/Beta Tester

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