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Is it possible to modify HEX code ?
This thread has 5 replies. Displaying all posts.
Post 1 made on Tuesday January 23, 2024 at 16:49
Timoxx4
Long Time Member
Joined:
Posts:
December 2006
25
Hi all,

I am trying to figure out a way to modify a hex code for volume control of a Anthem AVM70 processor but dont know how.

I am programming a URC MX990 remote for it but the volume commands are going way too fast on a press and hold command. Like if you press and hold the volume up button it will blast through from -90 to +10db in a second which makes volume control very difficult to impossible.

This is with the codes from URC in there code database and the hex codes from Anthem.

Trying to learn the codes from the remote only work for a single press. press and hold wont work with the device.

Here is the hex code from Anthem that i was hoping to edit somehow to slow down the rate the volume increases.

0000 006D 0022 0002 0155 00AA 0015 0040 0015 0015 0015 0040 0015 0015 0015 0015 0015 0015 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0040 0015 0040 0015 0015 0015 0040 0015 0040 0015 0040 0015 0040 0015 0040 0015 0015 0015 0015 0015 0040 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0040 0015 0040 0015 0015 0015 05ED 0155 0055 0015 0E47

And this is the volume down code:

0000 006D 0022 0002 0155 00AA 0015 0040 0015 0015 0015 0040 0015 0015 0015 0015 0015 0015 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0040 0015 0040 0015 0015 0015 0015 0015 0040 0015 0040 0015 0040 0015 0040 0015 0015 0015 0015 0015 0040 0015 0040 0015 0015 0015 0015 0015 0015 0015 0015 0015 0040 0015 0040 0015 0015 0015 05ED 0155 0055 0015 0E47

Thanks for any help.
Tim.
Post 2 made on Wednesday January 24, 2024 at 04:02
Barf
Long Time Member
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August 2013
350
The signals given are NEC1: {D=133,S=106,F=159} and NEC1: {D=133,S=106,F=158}. perfectly "to the book". These consist of an intro signal, containing the data, then the repeat is just a dumb "ditto", consisting of two impulses. It repeats every 108 ms, so

if you press and hold the volume up button it will blast through from -90 to +10db in a second

means that every send is increasing the volume by 10dB, which sound fairly implausible (or rather silly :-)). Possibly there is a parameter somewhere? (Tech support...)

To literally answer your question, the fifth last number is the duration (in multiples of the modulation frequency) between the intro and the first ditto, and the last number the duration between the dittos. So these are the number you should be manipulating. However, for reasons given before, I severely doubt that it will be the solution you are looking for. There is also a possibility that the device will reject the modified signal.
Post 3 made on Wednesday January 24, 2024 at 05:58
buzz
Super Member
Joined:
Posts:
May 2003
4,370
The 10dB step size is nasty. If modifying the codes is not productive, you could convert the Volume buttons macros that insert an actual delay or some nonsense commands that will slow the repeats.
OP | Post 4 made on Wednesday January 24, 2024 at 16:33
Timoxx4
Long Time Member
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Posts:
December 2006
25
Ah ok. Well the step size is 0.5db. It just zooms through them so fast you cant stop where you would like it too. Say for example the volume is currently at -40db and you wanted to increase the volume to -35db you end up over shooting 20db because it goes so fast.
Post 5 made on Wednesday January 24, 2024 at 17:16
Chris L
Founding Member
Joined:
Posts:
October 2001
356
Try this. In CCP click on the Volume up button, click on Macro, click twice on the command and adjust the number of repeats there.
OP | Post 6 made on Friday January 26, 2024 at 16:56
Timoxx4
Long Time Member
Joined:
Posts:
December 2006
25
Yeah i tried that. It doesn't do anything for a press and hold command unfortunately.


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