Extending Gazelle

RE: Extending Gazelle

Håkon Alseth — Tue, 16 Sep 2014 06:06:15 GMT

Gazell is designed for star-network topologies, where the maximum number of nodes are restricted. Since gazell was developed mainly for desktop usage (mice, keyboard, joysticks, remote, etc) it will not work in all scenarios. The whole protocol is also based on receiving ACKs from the RX-device, which makes broadcast applications not applicable for gazell. Check out thisisant.com and see if this is something that meets your requirements in terms of throughput/latency/# of nodes.

RE: Extending Gazelle

Marty — Mon, 15 Sep 2014 15:16:12 GMT

Can you be more specific please? What challenges are caused by Gazelle and are solved by ANT? I have a static broadcast application with mostly receiving nodes. Single node addressability is not required. Latency requirements are lax.

RE: Extending Gazelle

Andre Lochner — Fri, 28 Feb 2014 12:28:42 GMT

Thanks.

RE: Extending Gazelle

Håkon Alseth — Fri, 28 Feb 2014 12:25:09 GMT

Hi Andre,

It is possible, but Gazell is not well suited for switching between host and device. ANT is a better candidate in such an application (mesh+star network topology)

Best regards Håkon

RE: Extending Gazelle

Andre Lochner — Fri, 28 Feb 2014 12:15:01 GMT

But in the user guide it says the following :

"It is possible to build more sophisticated Gazell networks, since a single Device is able to speak to several Hosts and any node is able to change between the two modes. However, this requires the application to coordinate such a network."

Is this then not possible ?

RE: Extending Gazelle

Håkon Alseth — Fri, 28 Feb 2014 12:06:18 GMT

Hi Andre,

Gazell is not really made for such an application. It's target applications are desktop peripherals (mouse, keyboard, etc) and other star-network topologies.

What you want is a mesh-network. I recommend that you look into the ANT protocol (www.thisisant.com) and the nRF51422.

Best regards Håkon