NXP Semiconductors OM2385 User manual

UM11635

OM2385/SF002US development kit

Rev. 1.0 — 22 June 2021 User manual

Document information

Information Content

Keywords Sigfox, FRDM-K32L2B3, MCUXpresso, OL2385, NCF

Abstract The OM2385/SF002US development kit provides an evaluation platform for

designing SIGFOX network applications that use NXP's OL2385 single-chip

RF transceiver.

NXP Semiconductors UM11635

OM2385/SF002US development kit

Revision history

Revision Date Description of changes

1.0 20210622 Initial release

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OM2385/SF002US development kit

Important notice

NXP provides the enclosed product(s) under the following conditions:

This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR

EVALUATION PURPOSES ONLY. It is provided as a sample IC pre-soldered to a

printed circuit board to make it easier to access inputs, outputs, and supply terminals.

This evaluation board may be used with any development system or other source of

I/O signals by simply connecting it to the host MCU or computer board via off-the-

shelf cables. This evaluation board is not a Reference Design and is not intended to

represent a final design recommendation for any particular application. Final device in

an application will be heavily dependent on proper printed circuit board layout and heat

sinking design as well as attention to supply filtering, transient suppression, and I/O

signal quality.

The goods provided may not be complete in terms of required design, marketing, and

or manufacturing related protective considerations, including product safety measures

typically found in the end product incorporating the goods. Due to the open construction

of the product, it is the user's responsibility to take any and all appropriate precautions

with regard to electrostatic discharge. In order to minimize risks associated with the

customers applications, adequate design and operating safeguards must be provided

by the customer to minimize inherent or procedural hazards. For any safety concerns,

contact NXP sales and technical support services.

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OM2385/SF002US development kit

1 Overview of the OM2385/SF002US development kit

The OM2385/SF002US development kit provides an evaluation platform for designing

SIGFOX network applications that use NXP's OL2385 single-chip RF transceiver.

The kit consists of three boards: the OL2385 Shield Board, the OL2385 Innocomm

Module and a FRDM-K32L2B3 board. The OL2385 Innocomm Module is permanently

affixed to the surface of the OL2385 Shield Board. The Innocomm Module contains an

embedded OL2385 transceiver and serves as a wireless modem. When connected to

an antenna (included in the kit), it provides all the functionality required to communicate

with the SIGFOX network. The OL2385 Shield Board contains connectors for external

communication. The Shield Board is mounted by means of four Arduino connectors to

the FRDM-K32L2B3. The FRDM-K32L2B3 acts as the communication link between

the development kit and a PC. It comes pre-loaded with microcode that manages the

interface between the PC and the OL2385 Innocomm Module .

Users must initially register their device with SIGFOX using a unique ID and access

code provided with the kit. Once the device has been registered, the kit can be used

to connect to the SIGFOX network and test the functionality of the OL2385-based

application under development.

To interact with the development kit, users must connect the kit to a PC through the

OpenSDA port on the FRDM-K32L2B3. A terminal emulator (such as HyperTerminal)

provides the interface, allowing users to login to the network and send and receive

messages. Designers can also use the MCUXpresso IDE to develop and download

microcode to the K32L2B.

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OM2385/SF002US development kit

2 Getting started

2.1 Kit contents/packing list

The OM2385/SF002US development kit contents includes:

•Assembled and tested OM2385/SF002US FRDM board mounted to a firmware-loaded

FRDM-K32L2B3 board

•2 x 8 cable

•2 x 6 cable

•2 x 10 cable

•Antenna

•USB cable

•Quick Start Guide

2.2 System requirements

The kit requires the following to function properly with the software:

•USB enabled computer running Windows XP, Vista, 7, 8, or 10 (32-bit or 64-bit)

•Terminal emulation software (such as TeraTerm or HyperTerminal)

2.3 Setting up hardware and software

A detailed description of how to set up the hardware and software can be found

in the OL2385SWUG application note (https://www.nxp.com/webapp/Download?

colCode=OL2385SWUG).

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OM2385/SF002US development kit

3 Getting to know the hardware

3.1 Board overview

The OM2385/SF002US consists of a base board (the OL2385 shield board) with a

permanently attached module (the Innocomm module). The combination—along with

the attached FRDM-K32L2B3 board—serves as a development platform that provides

wireless modem access to the SIGFOX network. Once properly registered, the board

allows users to send and receive messages across the network.

3.2 Board features

The board features:

•Arduino connector compatibility with other Freedom boards

•Support for UART, SPI, MDI and GPIO communication

•SIGFOX Communication Library for RC1 through RC7 (Note: if RC2 or RC4 are

configured, PA is enabled as standard, otherwise PA is off and output power is

14 dBm.)

3.3 Block diagram

aaa -02563 2

COMMAND

INTERPRETER

KINETIS HARDWARE SPI/UART

Interface

Altimeter/

Pressure

HOST MCU

APPLICATION

SOFTWARE

Voltage

sensing

Current

sensing

N R S T

INTERFACE

SIGFOX

NXP

CUSTOMER

AES128

OL2385

SIGFOX

LIB

SOFTWARE

NXP

RADIO

LIB

antenna

SET DATA

e-Compass Gyro

Magneto

meters

Accelero

meters

SET POWER

SET FREQ

NCF CONTROLLER WITH

INTEGRATED FIRMWARE

Figure 1. Block diagram

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OM2385/SF002US development kit

3.4 Device features

The SN10-12 Innocomm module includes the OL2385, Low-Power Multi-Channel UHF

RF Wireless.

SN10-12 The SN10-12 is a transceiver module

that complies with SIGFOX network

specifications. The SN10-12 is based

on the NXP OL2385 chip, which is a

sub-GHz wireless SoC transceiver.

The SN10-12 module provides a wide

range of frequency selections for IoT

applications network service platforms.

•High performance low power RISC

micro-controller

–Memory

– 32 kB EROM

– 7 kB RAM

–Ultra Narrow Band Radio

Frequency Band

– TX: 902.200 MHz

– RX: 905.200 MHz

–Output Power

– 23 dBm

•Excellent Receiving Sensitivity:

–125 dBm @600 bps 2 GFSK

•Excellent Image Rejection: 60 dB

•Excellent Blocking Performance: 58

Table 1. Device features

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OM2385/SF002US development kit

3.5 Board description

Figure 2 describes the main elements on the OM2385/SF002US board.

Figure 2. Board description

Number Name Description

1 Communication connectors Provide connectivity for SPI, MDI, GPIO and UART support

2 Arduino connectors Provide connectivity to FRDM-K32L2B3 and other Freedom boards

3 Innocomm module Low-Power Multi-Channel UHF RF Wireless Platform

4 µFL connector Provides connectivity to UHF antenna

5 Motion sensor Provides wake-up functionality for the Innocomm module

6 Button switches Control digital inputs to Arduino connectors

7 LEDs Indicate status

Table 2. Board description

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OM2385/SF002US development kit

3.6 LED display

The board contains the following LED:

Figure 3. LED locations

LED ID Description

D1 LED Green. Not used

D2 LED Yellow. On by default.

D3 LED Red. On by default. Blinks six times to indicate an error in initialization.

Table 3. LED locations

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OM2385/SF002US development kit

3.7 Switch definitions

Figure 4 shows the location of switches on the OM2385/SF002US Shield Board.

Figure 4. Switch locations

Table 4 describes the function of the three switches.

Switch Description Function

SW1 Can be used to

drive host pins

Open to customer use

SW2 Can be used to

drive host pins

Open to customer use

SW3 Can be used to

drive host pins

Open to customer use

Table 4. Switch definitions

3.8 Connectors

The board has the following connectors:

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