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 Post subject: Best Zigbee Devices
Posted: Wed Jun 08, 2005 6:26 am 
Our companies ended up with three best choices by comparing the datasheets and use of avaialble Zigbee devices (listed without particular
Ember EM250/EM260
Freescale MC1321X/MC1320X
UBEC UZ2500/UZ2400

Do you have similar experience?


 Post subject: EM250 Sigbee SoC
Posted: Tue Jul 19, 2005 5:25 pm 
I am writing SW for Ember EM250 and interested in exchanging experience with other.
I really like the 16b XAP2 microcontroller that is embedded on the EM250.

 Post subject:
Posted: Thu Jul 21, 2005 10:11 am 
Have done some work with the Freescale MC13192/3. Good range. Easiest transceiver I ever took through a FCC test. Seperate TX and RX ports allows you to consider adding a PA or LNA. However, the Freescale HCS08 processors have clumsy sleep modes requiring external wake-ups. The single chip MC13121X seems to be just putting the MC13192/3 and HCS08 together without addressing the shortcommings of the processor.

Datasheets on the Ember EM250/EM260 look interesting. Does the sleep timer work as indicated? Does the device retain RAM while sleeping?

 Post subject: EM250 zigbee soc is great!
Posted: Sun Jul 24, 2005 3:19 pm 
Probably the best device in silicon!!!

I was very skeptical to the XAP2, but now that I've started using it, I really like it.
Ember has also built some great and cheap tools to support it. For my home automation application, we get use for a 16b uC. I am skeptical
about 8b uC for Zigbee, man.

EM250=Best Zigbee SoC !!!

 Post subject: Ember EM250 as MIMO device
Posted: Tue Jul 26, 2005 3:57 pm 
Ember EM250 can also be used as a MIMO system due to its excellent dual rf interface.
You get 7db better sensitivity, assumingly. We are talking about better than -100dBm sensitivity, guys.

 Post subject: Re: Ember EM250 as MIMO device
Posted: Sat Jul 30, 2005 4:07 pm 
Richard wrote:
Ember EM250 can also be used as a MIMO system due to its excellent dual rf interface.
You get 7db better sensitivity, assumingly. We are talking about better than -100dBm sensitivity, guys.

Could you share how you set up the radio registers of the EM250 to
do this? I've spent hours and still have some problems with a similar
MIMI mode. Thanx.

 Post subject: Re: Best Zigbee Devices
Posted: Thu Apr 08, 2010 8:20 am 

Joined: Thu Apr 08, 2010 8:03 am
Posts: 1
Hey guys,

I've been trying to work with Ember developer kit (EM250) but i'm not able to do the communication between sensors and sick. I don't know how I could save my program in them. Can you help me?

Thanks a lot.

Posted  11/12/2012
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