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Topic:
How to convert "RC5" codes to "long form hex" codes?
This thread has 4 replies. Displaying all posts.
Post 1 made on Monday March 10, 2008 at 17:55
orrinc
Lurking Member
Joined:
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March 2003
5
I'm trying to add some discrete Philips LCD TV codes to a Universal MX980 Remote.

I'm stumped by the fact that the codes I have found here are in "RC5" format, with 6 groups of four digits, while the Universal MX980 editor will only allow me to paste "learned" codes, which a tech explained are in the "long Pronto hex format".

I see ways to convert "long codes" to "short codes", but not the other way around!

Am I missing something here?

Does anyone have a solution that will allow me to add discrete power and input codes for a Philips/Magnavox TV (Philips 47PFL5422D/Magnavox 47MF437B)?

Just for reference, the "Power ON" code I found is:
5000 0000 0000 0001 0000 00eF

I can paste that into the URC "Universal Browser", but it won't drop onto a button, while "learned codes" can be dropped easily- problem is I don't have a remote control with those discrete codes on it to learn from!

Thanks
Post 2 made on Monday March 10, 2008 at 18:02
johnsfine
IR Expert
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Posts:
September 2002
5,159
You can convert RC5 codes to long pronto hex with the makehex program (the process is described in many other threads at RemoteCentral).

On March 10, 2008 at 17:55, orrinc said...
5000 0000 0000 0001 0000 00eF

But 00eF is not a valid RC5 function number. (lower/upper case doesn't matter, 00ef or 00EF would be equally invalid. Only 0000 through 007F are valid).

I expect you really meant 003F. Hex 3F is decimal 63. The number before it (0000) is what makehex calls "device" so you would use rc5.irp with device=0 then select function 63 from the output (in makehex output the pronto hex is of course in hex, but device and function numbers are in decimal).

Depending on the version of universal browser you are using it may be easier or necessary to convert the output of makehex to a ccf file with hex2ccf or irpanels before dragging the desired function with universal browser.

Last edited by johnsfine on March 10, 2008 18:10.
OP | Post 3 made on Monday March 10, 2008 at 18:57
orrinc
Lurking Member
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Posts:
March 2003
5
Thanks, John!

Yes you are right- I meant to type "003f" (guess my Hex proofreading skills aren't what they used to be!)

Where is the best place to download the current version of your "MakeHex" program? The link in most of the RemoteCentral threads ([Link: john.fine.home.comcast.net]) says it is "temporarily disabled", whatever that means!

I found lots of threads about using MakeHex to shorten hex codes, but I didn't find any that told how to convert a short one to a long one!

This is sure getting complicated!

Orrin
Post 4 made on Tuesday March 11, 2008 at 23:23
estech
Active Member
Joined:
Posts:
August 2002
584
If you didn't find it yet, it's here:

[Link: remotecentral.com]
Pay no attention to that man behind the curtain.
Post 5 made on Sunday April 6, 2008 at 01:02
kemperflow
Lurking Member
Joined:
Posts:
April 2008
7
I will definitely figure out how to run this makehex program to convert codes, but I wonder if this can be simplified. I am looking for the exact same discreet codes for the Philips TV, I wish he would have posted his results and contributed back..

My question is, what is the actual process to conver these short hex Pronto codes to long ones? I don't mind writing a little GUI based program that would just allow you to paste a short and hit a button to encode to long. Maybe it isn't that easy though?

Even if the tool only works with the MX series by converting Pronto codes, it seems like this utility would help some people. Who knows, I just looked at the Makehex and it was pretty extensive.. I guess I could even build a little ASP.NET web page to dynamically convert codes.. You seem to be knowledgable on this conversion, does this sound useful or I am missing something?

Thanks!


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