Is there any RC5 implementation?

Jacky2k

Hello,
I have to interprete RC5 Codes from a TV remote control but I have no idea how to implement it.
So, does someone have a working code I could use or any idea how to implement it?

Jacky2k

Jacky2k

OK...
I think I know why my implementation isn't running. Is the normal Spin code very slow? In a small test I found out that he needs some thousand clocks to do a litte loop from 0 to 27... is that normal???
So, do I have to implement it in assembly?

hippy

RC5 bit times are around 1.8ms so that should be plenty slow enough for Spin to keep up with if you are using an IR detector with built-in demodulator.

If you are trying to decode the 36kHz carrier then that has a bit time of around 30us so you would need to use assembly.

Spin isn't blindingly fast but neither is it incredibly slow. It's certainly capable of handling 9600 baud bit-banged serial at 80MHz. RC5 has an equivalent rate of around 500 bps so Spin should be able to easily handle it.

StefanL38

Hello Jacky,

make a search on the obex

obex.parallax.com/

with keywords like rc5, remote etc.

I remember there is something there around IR-remote-control

best regards

Stefan

Jacky2k

Nice tip! I just searched for RC5, no result but "remote" has more results [noparse];)[/noparse] In the packet "IR Kit" is an RC5 decoder... have fun
For thers: Be carefull, RC5 is not from Sony, it's from Phillips!