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JP1 Remotes
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broderp
Joined: 01 Jul 2004
Posts: 25
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 Posted: Tue Aug 03, 2004 12:47 pm Post subject: Basic level knowledge needed. |
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I may have bitten off more than I can chew. I'm having a hard time understanding the "layers" that seem to be required to program a JP1 remote.
When I say layers I mean:
It seems that each manufacture (sony) has a different code for each TYPE of device(TV, DVD, VHS).
It seems each device can havemore than one CODE SET (TV=0000 or 01543 etc...)
It seems that each code set has unique CODES for each function in the form of a HEX number or EFC key name (I have no clue what those are)
So if I know the code to say switch my TV from 16x9 mode to 4:3 mode is TV CODE SET 0000 and the Code in hex is EF0 or the EFC is 242 (These are examples, not actual codes mind you), then if I am to use these codes, I have to learn or program the entire code set into my remote?
If I already use the code set (0000) then I should already have the codes hidden in there somewheres?
Yes? No?
If I don't, and want to load it, I cant see how to load it without overighting the files on my remote. I don't see an 'ADD" button.
Also, I want to add the "EXTENDER" file as well, but it seems like I will over-write EVERYTHING on my remote that I have.
I'm trying to figure out this IR program, I have no clue what good the Excel sheet is for, as all the macros I've been playing with and changes I've muddled my way thru had not a single bit to do with the EXCEL sheet.
Fianlly, does anyone have instructions on using the JAVA based program (instead of the EXCEL sheet?) I like the interface, but fail to see how it relates to anything. I know I can use either the excel sheet or the java with IR, but details on use are SCARSE!  |
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gfb107
Expert
Joined: 03 Aug 2003
Posts: 3411
Location: Cary, NC
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gfb107
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Joined: 03 Aug 2003
Posts: 3411
Location: Cary, NC
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gfb107
Expert
Joined: 03 Aug 2003
Posts: 3411
Location: Cary, NC
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| Posted: Tue Aug 03, 2004 1:54 pm Post subject: Re: Basic level knowledge needed. |
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| broderp wrote: |
If I already use the code set (0000) then I should already have the codes hidden in there somewheres?
Yes? No? |
No, the command isn't already in your remote, BUT you remote knows how to generater the correct IR signal for that command. All you have to do is create a KEYMOVE specifying the corrent device type & setup code and the desired command. Most of the time we use EFCs (Extended Functions Codes, aka Advanced Codes), but those don't work properly with ALL protocols. Sometimes in IR you have to specify the HEX code instead.
| Quote: |
If I don't, and want to load it, I cant see how to load it without overighting the files on my remote. I don't see an 'ADD" button. |
The way it works is as follows. First connect your remote to your computer with a JP1 cable. Launch IR. Download your remotes configuration into IR. IR now has an image of the EEPROM contents of you remote, and can manipulate it. Go to the "Devices" tab. Click the "Add" button to add a new device code. Voila, you've added a nee setup code to the EEPROM image. Now upload that image to the remote. Also, save (File->Save) it to a file so you can edit it without having to download again, or so you can restore this configuration to a replacement remote, or so you can post it here if you get stuck and someone can see what you've done.
| Quote: |
Also, I want to add the "EXTENDER" file as well, but it seems like I will over-write EVERYTHING on my remote that I have. |
Again, download from your remote and save to a file so you can get back to your current configuration. Also, IR knows how to convert your saved file to use the Extender, so you won't lose your existing configuration (File -> Convert file for extender)
_________________
-- Greg
Original RemoteMaster developer
JP1 How-To's and Software Tools
The #1 Code Search FAQ and it's answer (PLEASE READ FIRST) |
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jon_armstrong
Expert
Joined: 03 Aug 2003
Posts: 1238
Location: R.I.P. 3/25/2005
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| Posted: Tue Aug 03, 2004 2:13 pm Post subject: Re: Basic level knowledge needed. |
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| broderp wrote: | | It seems that each manufacture (sony) has a different code for each TYPE of device(TV, DVD, VHS). |
Yes otherwise If you turned on a Sony TV then your Sony DVD would turn on, too.
But lets get some terms straight. An IR protocol is the template used in an IR command. Usually they have a device number and function number. The device number usually does not vary. The Sony 12 bit protocol device=1 (expressed as Sony12:1) is the main TV device for Sony worldwide. Sony12:1:46 (OBC=46) is the discrete power on command. Sony12:16 is the most common device code for all Sony Receivers> Sony12:16:46 is the discrete power command for Sony receivers.
| Quote: | | It seems each device can havemore than one CODE SET (TV=0000 or 01543 etc...) |
TV/0000 is a Setup Code and a setup code can have more than one Protocol and device combination. TV/0000 is Sony12:1 and Sony15:164. The former is usually though as the primary device since most commands are on Sony12:1.
| Quote: | | It seems that each code set has unique CODES for each function in the form of a HEX number or EFC key name (I have no clue what those are) |
Yes, sometimes they are published by the manufacturer but mostly done by reverse engineering. We know how to read Pronto files and there are literally thousands of those posted at Remote Central. Learned commands on OFA learninig remotes can be directly decoded by John Fine's decoder that is bundled with IR. You just have to look in the learned tab.
Hex used in the OFA/JP1 remote context means one or more 8-bit bytes. EFC (aka Advanced Codes) are an encryption of HEX. All of our tools automatically translate EFC to HEX. OBC's are a subset of HEX. For Sony OBC's are 7-bits. EFC/HEX has an extra bit. That extra bit decides whether you get Sony12:1 or Sony15:164.
| Quote: | | So if I know the code to say switch my TV from 16x9 mode to 4:3 mode is TV CODE SET 0000 and the Code in hex is EF0 or the EFC is 242 (These are examples, not actual codes mind you), then if I am to use these codes, I have to learn or program the entire code set into my remote? |
No you can assign those to just about any key or any SHIFTED-key.
| Quote: | | If I already use the code set (0000) then I should already have the codes hidden in there somewheres? |
Yes, it's in the ROM. Everything we do is reading and writing to and from the EEPROM, only. IR can't see the ROM. If a device upgrade for setup code TV/0000 is entered into the EEPROM, the remote will ignore what is in the ROM. It does not and can not erase the built in setup code. The only way to do that is with a hammer 
| Quote: | | If I don't, and want to load it, I cant see how to load it without overighting the files on my remote. I don't see an 'ADD" button. |
You don't overwrite anything in the ROM. In a key move you tell it to substitute another setup code and command ONLY for a specific button.
| Quote: | | Also, I want to add the "EXTENDER" file as well, but it seems like I will over-write EVERYTHING on my remote that I have. |
Don't try to tackle the extender until everything else works and you get a little experiece.
| Quote: | | I'm trying to figure out this IR program, I have no clue what good the Excel sheet is for, as all the macros I've been playing with and changes I've muddled my way thru had not a single bit to do with the EXCEL sheet. |
You don't need KM or RM to do anything except for device and protocol upgrades. That adds a setup code that is not in the built in library.
| Quote: | | Fianlly, does anyone have instructions on using the JAVA based program (instead of the EXCEL sheet?) I like the interface, but fail to see how it relates to anything. I know I can use either the excel sheet or the java with IR, but details on use are SCARSE! |
Try this and remember the old cliche about eating an elephant ...
_________________
-Jon |
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zaphod7501
Joined: 02 Aug 2004
Posts: 534
Location: Peoria Illinois
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| Posted: Tue Aug 03, 2004 7:13 pm Post subject: |
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Broderp , in looking over your threads , I didn't see where anyone explained how to enter an EFC code manually to test it without programming it into the remote (sorry if I missed it somewhere) and I didn't see if you found out if the command actually worked for you.
You set the remote to the TV function , then press the "set" key to get a single blink followed by pressing the three digits in sequence -- the command is sent on the third digit keypress.
I use this method at work with an old (non JP1) remote on sets that people bring in for repair and forget the remote. |
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