JP1 Remotes

One of the biggest problems for me when I started reading the forums was the terms used in the forum. The other day Rob said we had a glossary here, but he didn't know where it was. That prompted me to start making a list of words that at one time had me confused me and trying to define them.

https://www.hifi-remote.com/forums/viewt ... 8527#p88527

With the exception of Comcast, and macro, every other term on that list is something that I had to research when I first started reading the forum.

I have now gone as far as I can with the list and would like help refining the definitions.

1) I'd welcome wording changes, that would make these clearer.

2 ) Any suggestions for additions, I know I'm missing several 3 letter acronyms that start with D but can't remember what they were.

3) I'd really like a definition for UART. I see it in a lot of posts. I've googled it and can't imagine how it relates to JP1.

Can't be comprehensive at this point, so just few quickies.

UART-this no help?
http://en.wikipedia.org/wiki/Universal_ ... ransmitter

CVS
is a drugstore in my neck of the woods.
Comma separated values format is CSV

Device Combiner
It's an enormous protocol, used for combining as you've described.
Also permits to issue longer duration (I think duration) signals

There are many in the old FAQ here:
http://www.hifi-remote.com/jp1/faq/10116934.shtml

Is this the one I wrote? I don't even remember

[EDIT] Yeah it is - it is obviously really out of date.

xnappo

A UART is basically a chip or part of a chip that makes an RS232 serial port on a computer or other device. The chip itself likely makes what is called TTL level signals (0 and 3.3 or 5V), and needs a level converter chip to make the TTL signals into a signal that drives at -5 to -12V for a TTL 3.3 to 5V signal (logic value 1), and +5 to +12V signal for a TTL signal of 0V (logic value 0), which are part of the RS232 spec. And the other way around for signals the UART receives. I call the raw signals in and out of a UART "TTL232".
It relates to JP1, because of how various types of UARTs can be accessed by software, basically the simple JP1 serial interface can only work with a motherboard or PCI card UART, because its registers can directly be manipulated and read software (becasue reading/writing a JP1 remote is done with bit-banging), and USB UARTs cannot. Same for parallel ports.

CSV is Comma Separated Values, which is a plain text database type file, with each record being a line, and each field in the record separated by a comma.
Keymaster upgrades are CSV files.

ElizabethD wrote:CVS
is a drugstore in my neck of the woods.
Comma separated values format is CSV

Oops, see how hard these acronyms are when you don't under stand them.
And then if you are trying to read some of these posts and you have no idea what they are so you go out and google them or heaven forbid run them through a language translater.

Bin - a container with a lid
Cinema 7 is a movie complex
Channel Locks are a big pair of pliers
hex - an evil spell
Millenium a period of a thousand years.
Navigator is the person who guides you where you want to go
shift cloaking - rearranging your cloak, although you don't see many "cloak rooms" anymore .....
pronto - fast
Pronto Hex ,,,,,

xnappo wrote:There are many in the old FAQ here:
http://www.hifi-remote.com/jp1/faq/10116934.shtml

Is this the one I wrote? I don't even remember

[EDIT] Yeah it is - it is obviously really out of date.

This one has much better wording, and has a lot of terms I missed.

Thanks

classicsat, that's a great definition of CSV, now even I can understand it.
Tthe uart explaination was really helpful too. I never could figure out what those posts were talking about.. I don't think I need to include it in my list,

vickyg2003 wrote:the uart explaination was really helpful too. I never could figure out what those posts were talking about.. I don't think I need to include it in my list,

If you were looking for the meaning of it, others might look too, so I think it would be a good idea to include it, just to show that it's not a JP1 term.

vickyg2003 wrote:

xnappo wrote:There are many in the old FAQ here:
http://www.hifi-remote.com/jp1/faq/10116934.shtml

This one has much better wording, and has a lot of terms I missed.

If I remember right there is some interactive way to edit that FAQ - but I don't remember how. Rob - do you?

xnappo

No, and I was thinking of deleting that whole section when I move the site to a new server.

The Robman wrote:No, and I was thinking of deleting that whole section when I move the site to a new server.

I was just curious. If someone does start a Wiki we can move them over there.

Thanks,
xnappo

To add on UARTs and JP1.2/3:

Normal PC serial ports, and the USB to RS232 adapters use level converters to drive the TTL to the +/- 5 to 12V levels.

The JP1.2/3 interface uses TTL. The basic interface converts between +/- and TTL. Tommy Tyler's JP1.2/3 USB adapter directly uses the already TTL on the USB UART chip to interface with the JP1.2/3 remote.

classicsat, thanks for the detailed information, I hope you are not too dissapointed that I reduced that to

UART
A Universal Asynchronous Receiver Transmitter is the electronic circuit that makes up the serial port on a PC.


I started reading along and saw several refrences to a USB UIRT. Is this another board level circuit?

USB UIRT

USB Universal Infrared Receiver Transmitter