Overview

AN4018

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DocID022544 Rev 3

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Overview

The ST7580 data link communication protocol provides the services to build and manage a

“master multi-slave” power line network.

Two different modes are described in this document:

•

Master multi-slave mode:

–

In a master-multi-slave network, one node, and only one node, must be configured

as a “master” while the other nodes must be configured as “slaves”. Each slave

needs a join procedure with the master before starting communication;

Appendix A describes the join procedure.

•

Simple node mode:

–

In simple node mode all the nodes must be configured as “master”; in this case the

nodes do not need a join procedure and they can all communicate with any other

node.

The protocol has been specified for the STM32Fx family microcontroller. It utilizes a serial

communication (UART) with the ST7580 power line device.