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Topic:
15-1994 mem limits, programming
This thread has 6 replies. Displaying all posts.
Post 1 made on Monday February 5, 2001 at 10:43
næstep
Historic Forum Post
I've got a couple of questions about the 15-1994, which I just picked up recently and am in the middle of programing.

1. What are the memory limitations? More appropriately, what actually uses memory? I'm doing a lot of "key moves", and at one point, the remote simply stopped accepting any more. I reset the remote and started over. I'm also adding quite a few "advanced codes". Do these both use up memory? If so, do they draw from the same memory that is used to "learn" commands?

2. I having trouble with the following sequence:
a. Add discrete [INPUT:VCR] command to TV (Tv/Video) key
b. Key Move TV [INPUT:VCR] (Tv/Video) key to VCR (Tv/Video) key

Initially, this works perfectly. However, if I switch out of the VCR device (for instance, I select TV on the remote), then when I switch back to the VCR device, the (Tv/Video) key changes properties to the original function of the TV (Tv/Video) button - it cycles through all 4 televison inputs. Note that it doesn't revert to the VCR (Tv/Video) properties, which would change TV/VID on the VCR but not the television. Instead, the key retains the TV device properties.

What's strange is that if I switch the remote back to TV mode, the (Tv/Video) key still functions as programed: It switches the television directly to the VCR input.

The eventual goal is to return the TV (Tv/Video) key to it's original function of cycling through each of the 4 inputs, but for the key to send the television directly to the appropriate input respective to its device (DVD, VCR, PC).

Any help is greatly appreciated.

—næstep
OP | Post 2 made on Monday February 5, 2001 at 13:01
Donald Miller
Historic Forum Post
The 15-1994 has 240 bytes of memory for advanced codes, moves, and macros. Learned buttons and device upgrades are stored in a different area that has 1792 bytes.

Advanced codes and key moves are identical in memory and use 5 bytes of memory (but ReplayTV advanced codes use 6). Macros use 2 bytes plus 1 byte per button in the macro.
OP | Post 3 made on Tuesday February 6, 2001 at 10:30
Slocko
Historic Forum Post
check out this forum:

[Link: remotecentral.com]

if you are interested join the group. they are building boxes that let you via software create device codes for the 1994 and program the remote so you don't waste any memory.
OP | Post 4 made on Tuesday February 6, 2001 at 12:33
Donald Miller
Historic Forum Post
>I having trouble with the following sequence:
>a. Add discrete [INPUT:VCR] command to TV (Tv/Video) >key
>b. Key Move TV [INPUT:VCR] (Tv/Video) key to VCR (Tv/Video) key

I don't think you can move a redefined key to another key, it will move the original key definition instead. My concept of it is that the buttons are like checkers, and redefining a key is like 'king'ing one. When you copy (move) a key, the bottom layer is moved, not the top layer. That's why you can swap keys.

Try adding the [INPUT:VCR] command directly to the VCR (Tv/Video) key: [P**] 994 TV P nnn VCR TV/Video **
OP | Post 5 made on Wednesday February 7, 2001 at 14:38
næstep
Historic Forum Post
> Try adding the [INPUT:VCR] command directly to the VCR (Tv/Video) key: [P**] 994 TV P nnn VCR TV/Video **

Is it safe for me to assume that this method uses up the same memory as a key move?


Also: I've read through most of the posts regarding the "black box" programming of the remote. In my case, I think I've located every single code I need (through advanced codes). Do I gain any advantage — say, additional capacity, less memory usage — by programming through the PC?

—næstep
OP | Post 6 made on Friday February 16, 2001 at 18:22
Abdul Jalib
Historic Forum Post
Is there any way to free memory? If you erase keys (using the copy-key-to-itself-trick), does this actually free the memory? If you record a null macro, does this use any memory? If you record a shorter macro on a key that used to have a longer macro, does this free any memory?

-Abdul
OP | Post 7 made on Friday February 16, 2001 at 22:51
næstep
Historic Forum Post
Here's the deal as I understand it now:

You can't free memory. But if you build the black box, you can reconfigure your advanced codes, then save the new layour as an upgraded device, which uses a different bank of memory.

The con: you can only "upgrade" to certain keys, and not to shifted keys, and you can only add advanced codes that are native to that device. For instance, you can't save an advanced code to "1L", and you can't add a code to change TV inputs through the VCR device.
Don't read this the wrong way: you can come back after you "upgrade" the new device layout, and then you can add the rest of the advanced codes and shifted keys. My point is, you've still got to be very deliberate in order to maximize memory usage.

As far as deleting keys and macros to make more memory available, that is likely to leave some fragmented memory behind that can't be used. The best way around this is to use the 9-8-0 command to reset the key moves and macros, and begin from scratch. Building the black box eliminates this problem; each time you upload to the remote, the memory is automatically restacked.

—næstep


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