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 2009-2017 Microchip Technology Inc.DS00001284B-page 1

AN1284

INTRODUCTION

Developing wireless applications can be challenging.

Apart from Radio Frequency (RF) circuit designs, the

firmware development process may require the devel-

opers to understand the details of RF transceivers, as

well as the different wireless communication protocols.

Microchip has developed a way to handle the complex

RF hardware or communication protocol stack software

development, or both, which enables wireless applica-

tion developers to focus on their own application devel-

opment. This type of wireless communication is

achieved through a concise, yet powerful communica-

tion programming interface in the application layer

called MiApp which is defined in this application note.

The MiApp specification defines the programming

interfaces between the application layer and Microchip

proprietary wireless communication protocols. The

MiApp programming interface is implemented in two

ways: as configuration parameters defined in the con-

figuration file, and as a set of function calls to the Micro-

chip proprietary wireless communication protocols.

Complying with the MiApp specification defined in this

application note, applications can use any Microchip

proprietary wireless protocols. With little or no modifica-

tion in the application layer, software development can

be easily changed between a proprietary P2P/Star

topology connection protocol to a full Mesh proprietary

networking protocol for small or big networks, depend-

ing on the application needs.

FIGURE 1:BLOCK DIAGRAM OF MICROCHIP WIRELESS MiWi™ STACK

Authors: Yifeng Yang

Pradeep Shamanna

Derrick Lattibeaudiere

Vivek Anchalia

Microchip Technology Inc.

User Application

MiApp

Interchangeable Wireless Communication Protocols

MiWi™ P2P/Star

MiWi™ Mesh

Future Microchip Proprietary

Wireless Protocols ...

MiMAC

Interchangeable RF Transceivers

MRF24J40 Transceiver

MRF89XA Transceiver

Future Microchip RF

Transceivers ...

Application

Configuration

Protocol Configuration

RF Transceiver

Configuration

Microchip Wireless MiWi™ Application

Programming Interface – MiApp

Product specificaties