IR network for PIC-processors

On Apr 9, 12:06=A0pm, Kristoffer Ek <stof...@skulp.net> wrote:
> On 2011-04-09 20:22:46 +0200, linnix said:
>
> > You might want to take a look at the zigbee stack. =A0Just change RF to
> > IR.
>
> Thanx, thats a good suggestion, according to what I read about zigbee
> it looks pretty much as my stack is a beacon-less version of zigbee -
> wonder if there are any zigbee software stacks?
>
> - kristoffer ek

Microchip has zigbee stack for PIC18 and PIC24, but you would probably
need 64K to 128K flash.

On Apr 9, 12:53=A0pm, linnix <m...@linnix.info-for.us> wrote:
> On Apr 9, 12:06=A0pm, Kristoffer Ek <stof...@skulp.net> wrote:
>
> > On 2011-04-09 20:22:46 +0200, linnix said:
>
> > > You might want to take a look at the zigbee stack. =A0Just change RF =
to
> > > IR.
>
> > Thanx, thats a good suggestion, according to what I read about zigbee
> > it looks pretty much as my stack is a beacon-less version of zigbee -
> > wonder if there are any zigbee software stacks?
>
> > - kristoffer ek
>
> Microchip has zigbee stack for PIC18 and PIC24, but you would probably
> need 64K to 128K flash.

The ZigBee sample router is around 64K for PIC18 and 96K for PIC24.
So, you probably need 128K PIC18 or 256K PIC24 to do anything useful.

Kristoffer Ek skrev 2011-04-09 21:06:
> On 2011-04-09 20:22:46 +0200, linnix said:
>
>> You might want to take a look at the zigbee stack. Just change RF to
>> IR.
>
> Thanx, thats a good suggestion, according to what I read about zigbee it
> looks pretty much as my stack is a beacon-less version of zigbee -
> wonder if there are any zigbee software stacks?
>
> - kristoffer ek
>

You probably do not need to implement a full ZigBee,
in which case you need less than 128 kB.

The RF4CE stack on top of an 802.15.4 radio will do just fine.
Atmel has a qualified stack for this that runs on top
of the ATmega128RFA1.

-- 
Best Regards
Ulf Samuelsson
These are my own personal opinions, which may
or may not be shared by my employer Atmel Nordic AB

On Apr 10, 7:43=A0am, Ulf Samuelsson <u...@invalid.atmel.com> wrote:
> Kristoffer Ek skrev 2011-04-09 21:06:
>
> > On 2011-04-09 20:22:46 +0200, linnix said:
>
> >> You might want to take a look at the zigbee stack. Just change RF to
> >> IR.
>
> > Thanx, thats a good suggestion, according to what I read about zigbee i=
t
> > looks pretty much as my stack is a beacon-less version of zigbee -
> > wonder if there are any zigbee software stacks?
>
> > - kristoffer ek
>
> You probably do not need to implement a full ZigBee,
> in which case you need less than 128 kB.
>
> The RF4CE stack on top of an 802.15.4 radio will do just fine.
> Atmel has a qualified stack for this that runs on top
> of the ATmega128RFA1.

Yes, but it's not going to work on 32K PIC18f2550.  If the OP wants
full Peer-to-Peer, he will need bigger chips.  However, he can have 3
to 4 routers and the rest in devices only.  Devices might fit in 32K,
but not routers.

On 2011-04-09 18:59:59 +0200, linnix <me@linnix.info-for.us> said:

> How far apart are the nodes?  IR only have narrow angle of view as
> well.

They can "se" each other at up to 10 meters...

-- 
- stoffer

On 2011-04-09 21:53:14 +0200, linnix <me@linnix.info-for.us> said:

> Microchip has zigbee stack for PIC18 and PIC24, but you would probably
> need 64K to 128K flash.

Yes,  I think its overdoing it with zigbee

-- 
- stoffer

On May 5, 4:05=A0pm, stoffer <stof...@skulp.org> wrote:
> On 2011-04-09 21:53:14 +0200, linnix <m...@linnix.info-for.us> said:
>
> > Microchip has zigbee stack for PIC18 and PIC24, but you would probably
> > need 64K to 128K flash.
>
> Yes, =A0I think its overdoing it with zigbee
>

A lot of the code is dealing with routings, with ZigBee or IR.  If you
want Peer to Peer, you have to deal with routings.  If you want
simpler protocols, use star (master to slave) configuration.