ZigBee

[Paul Evans]

Hi again,

One last comment: I think the Zigbee alliance is requiring commercial 
applications to pay-- I don't know if RTEMS is a commercial application 
(at least in some few cases)-- it would be a questions for lawyers I guess.

You can probably tell I'm a bit dubious about anything that's not BSD 
licensed at least for my own firm's commercial purposes. It always 
involves long drawn out painfully dull conversations about the license text.

Best,

    -Paul

erki.szabolcs at itport.hu wrote:
> Hi,
>
> Maybe using sources from manufacturers isn't the most useful way to
> implement a ZigBee stack to RTEMS. AFAIK Texas Instruments has a ZigBee
> stack too, but you can use it only with their SDK and chip, so it isn't a
> widely usable solution. But there is some open source project which aim to
> implement a fully open source stack. I'm not sure of stability an fullness
> of their code-base. Check:
>
> http://www.open-zb.net/
> http://www.freaklabs.org/
>
> and we can look into TinyOS ZigBee stack. This projects could help us not
> to start from zero.
>
> Br,
>
> Szabolcs
>
> On Szo, Április 12, 2008 10:41 pm, Paul Evans wrote:
>   
>
>   
>> Hi,
>>
>>
>> I wanted to correct what I said about the license from Microchip. I went
>> back and looked. To use Microchip's code you need to use the Microchip RF
>> chip and a Microchip MCU.
>>
>> There's a glimmer of hope though now that there's Microchip parts
>> running MIPS cores instead of the little Harvard architecture devices
>> they're known for. With enough memory I believe these devices would be
>> port candidates for RTEMS.
>>
>> Best,
>>
>>
>> -Paul
>>
>>
>> Paul Evans wrote:
>>
>>     
>>> Ralf Corsepius wrote:
>>>
>>>
>>>       
>>>> On Fri, 2008-04-11 at 09:10 +0200, erki.szabolcs at itport.hu wrote:
>>>>
>>>>
>>>>
>>>>         
>>>>> Hi,
>>>>>
>>>>>
>>>>> I'm sorry, if this is a discussed topic, but I'm new here and
>>>>> didn't find anything in RTEMS documentations. I decided to use RTEMS
>>>>> for our embedded system and an important part of this hardware is a
>>>>> ZigBee chip so I will
>>>>> need a ZigBee protocoll stack. Is there any plan or demand to add
>>>>> ZigBee
>>>>> stack to RTEMS?
>>>>>
>>>>>
>>>>>           
>>>> None in the public code and no plans that I am aware about.
>>>>
>>>>
>>>> Contributions, welcome ;)
>>>>
>>>>
>>>>
>>>>
>>>>         
>>> The last time I looked at Zigbee it looked expensive to do, hopefully
>>> I'm out of date and this has all changed:
>>>
>>>
>>> I think the Microchip Zigbee stack is the only "free" one out there in
>>> terms of code. It's license is not an open one in fact it's got a use
>>> with Microchip Products or else clause. So you'd want to stay clear of
>>> it. It probably wasn't that useful anyway, especially if there's any
>>> pic assembler in it. (If you are using a Microchip transceiver even with
>>> an different micro-- it's a good as good of as anything else to port to
>>> your platform/BSP for your own commercial use.)
>>>
>>> The standard itself isn't free either unless you're using it for
>>> "non-commercial" uses. I honestly don't know if contributing to an open
>>> source project and then using the results would be a commercial use.
>>>
>>> I'm not sure what the "Control4" company that linuxdevices.com finds
>>> uses but I suspect it's probably a commercial one. (I think a lot of
>>> early adopters may tend to use complete modules not chips as the analog
>>>  stuff can be challenging-- which could be why there's not much code
>>> out there) It's the only other open source reference to Zigbee I see..
>>>
>>> Best,
>>>
>>>
>>> -Paul
>>>
>>>
>>>
>>>       
>>>> Ralf
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
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>>>> http://rtems.rtems.org/mailman/listinfo/rtems-users
>>>>
>>>>
>>>>
>>>>         
>>> _______________________________________________
>>> rtems-users mailing list rtems-users at rtems.com
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>>>
>>>
>>>       
>>     
>
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