3

Software architecture

3.1

Software development kit

The BlueNRG-M2 module embeds the BlueNRG-2 application processor. Refer to the BlueNRG-2 web page

(http://www.st.com) to get access to:

•

BlueNRG-2 datasheet

•

development kit

•

Application notes

•

User manuals

•

Tools and software

•

Design note and tips

Software and firmware should be configured taking into account the BlueNRG-M2 specific configuration as

described in Section 2 Block diagram.

The BLUENRG-M2SA module has:

•

32 MHz crystal oscillator

•

32 kHz crystal oscillator

•

SMPS DC-DC converter

•

10 µH SMPS inductor

The projects provided with the development kit should be customized defining as following:

•

HS_SPEED_XTAL=HS_SPEED_XTAL_32MHZ

•

LS_SOURCE=LS_SOURCE_EXTERNAL_32KHZ

•

SMPS_INDUCTOR=SMPS_INDUCTOR_10uH

The BLUENRG-M2SP module has:

•

32 MHz crystal oscillator

•

LDO converter

The projects provided with the development kit should be customized as follows:

•

HS_SPEED_XTAL=HS_SPEED_XTAL_32MHZ

•

LS_SOURCE=LS_SOURCE_INTERNAL_RO

•

SMPS_INDUCTOR=SMPS_INDUCTOR_NONE

3.2

Software structure

There are two possible software architectures:

1.

Host-less mode (application processor): customer application runs on the BlueNRG-M2 module. Many

sample projects are available in the development kit

BlueNRG-M2

Software architecture

DS13053 - Rev 2

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