Simple Sensor Interface protocol: Difference between revisions

Revision as of 06:26, 15 August 2006

Revision as of 06:31, 15 August 2006

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SSI protocol has been developed jointly by [[Nokia]], [[Vaisala]], [[Suunto]], Ionific, Mermit and [[University of Oulu]]. Currently SSI is being developed within [http://www.mimosa-fp6.com/ Mimosa project] which is a part of [[European Union Framework Programmes on Research]].

SSI protocol is used in point-to-point communications over [[UART]] and networking [[nanoIP]] applications. SSI also provides polling sensors and streaming sensor data. For [[RFID]] sensor tags SSI spesifiesspecifies memory map for sensor data.

The criterion for SSI protocol development are:

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Sample implementation of SSI protocol for [[MSP430]] [[microcontrollers]] will be published as [[open source]] during August 2006 by Nokia.

== SSI message structure ==

An SSI message is formed of a 2-byte header and n-byte payload. The header consists of one byte address (wildcard is '?', 0x3F in [[ASCII]]) and one byte message/command type. The different possible values for message/command type are presented in SSI v1.2 command base.

== SSI v1.2 command base ==