Ublox C027-U20 User manual

C027-U20/C20/G35

mbed enabled Internet of Things (IoT)

starter kit

User Guide

Abstract

This user guide explains how to set up the C027 starter kit to begin

developing Internet of Things applications for the u-blox LISA-U200,

LISA-C200 or SARA-G350 cellular and MAX-7Q positioning

modules.

www.u-blox.com

UBX-13004386 - R01

C027-U20/C20/G35 - User Guide

UBX-13004386 - R01 Page 2 of 10

Document Information

Title

C027-U20/C20/G35

Subtitle

mbed enabled Internet of Things (IoT) starter kit

Document type

User Guide

Document number

UBX-13004386

Revision, date

R01

20-Nov-2013

Document status

Objective Specification

Document status explanation

Objective Specification

Document contains target values. Revised and supplementary data will be published later.

Advance Information

Document contains data based on early testing. Revised and supplementary data will be published later.

Early Production Information

Document contains data from product verification. Revised and supplementary data may be published later.

Production Information

Document contains the final product specification.

This document applies to the following products:

Name

Type number

Firmware version

PCN / IN

C027-U20

C027-U20-0-00

N/A

C027-C20

C027-C20-0-00

N/A

C027-C20

C027-C20-1-00

N/A

C027-G35

C027-G35-0-00

N/A

This document and the use of any information contained therein, is subject to the acceptance of the u-blox terms and conditions. They can

be downloaded from www.u-blox.com.

u-blox makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to make changes

to specifications and product descriptions at any time without notice.

u-blox reserves all rights to this document and the information contained herein. Reproduction, use or disclosure to third parties without

Trademark Notice

u-blox®is a registered trademark of u-blox Holding AG in the EU and other countries.

ARM®is the registered trademark of ARM Limited in the EU and other countries.

Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.

All other registered trademarks or trademarks mentioned in this document are property of their respective owners.

C027-U20/C20/G35 - User Guide

Contents

UBX-13004386 - R01 Objective Specification Page 3 of 10

Contents

Contents..............................................................................................................................3

1Starting up....................................................................................................................4

1.1 C027-U20/C20/G35 pin definition........................................................................................................ 5

1.2 C027-U20/C20/G35 block diagram ...................................................................................................... 6

1.3 C027 starter kit BoM ............................................................................................................................ 6

1.4 Features................................................................................................................................................ 6

1.4.1 Cellular and GNSS modules............................................................................................................... 6

1.4.2 Main CPU ......................................................................................................................................... 6

1.4.3 Interfaces and electrical data............................................................................................................. 6

1.5 C027-U20/C20/G35 connectors ........................................................................................................... 7

1.6 LEDs ..................................................................................................................................................... 7

2Getting started with mbed..........................................................................................8

2.1 Board setup and settings ...................................................................................................................... 8

2.2 Board power supply.............................................................................................................................. 8

2.3 Windows serial configuration ............................................................................................................... 8

2.4 Board interface settings ........................................................................................................................ 8

2.5 Getting started with mbed ................................................................................................................... 8

Related documents.............................................................................................................9

Revision history..................................................................................................................9

Contact..............................................................................................................................10

C027-U20/C20/G35 - User Guide

Starting up

UBX-13004386 - R01 Objective Specification Page 4 of 10

1Starting up

The C027 is a complete starter kit that allows quick prototyping of a variety of applications for the Internet of

Things. The application board has a MAX-7Q GNSS receiver and a LISA or SARA cellular module, enabling

straightforward development of location-aware, global communicating applications. The application board

provides access to Ethernet and CAN interfaces, and to a variety of HW interfaces (22 GPIOs with SPI, I2C, UART,

I2S) through a standard-based header connector.

The board is powered by a Cortex-M3 microprocessor, which is fully supported by the mbed platform. The CPU

has 512 kB flash, 64 kB RAM, and runs at 96 MHz. The board provides simple USB drag-n-drop programming

and a CMSIS-DAP debug interface for the target microcontroller. The mbed platform provides free software

libraries and online tools for professional rapid prototyping. The programming is done using a standard-based

C/C++ SDK. The mbed compiler also supports full export to different tool chains, for projects that demand it as

they go to production.

C027-U20/C20/G35 supports different cellular technologies via the u-blox nested design concept:

GSM/GPRS: C027-G35 (SARA-G350 mounted)

W-CDMA: C027-U20 (LISA-U200 mounted)

CDMA 1xRTT: C027-C2 (LISA-C200 mounted)

This document indentifies all the variants as C027.

C027-U20/C20/G35 - User Guide

Starting up

UBX-13004386 - R01 Objective Specification Page 5 of 10

1.1 C027-U20/C20/G35 pin definition

GND

5.0v

3.3v

IOREF

VIN 7v - 17v In

5.0v Regulated Out

3.3v Regulated Out

AnalogIn AnalogOut

P0_23

P0_24

P0_25

P0_26

P1_30

P1_31

I2S

clk

sda

Serial

PwmOut

P2_0

P2_13

P4_28

P4_29

P2_1

P2_12

P2_11

P2_2

I2C scl

sda

SPI

sck

miso

mosi

ssel

GND0v

PwmOut

P2_4

P2_3

P1_21

P1_24

P1_23

P1_20

P0_0

P0_1

AREF

P0_5

P0_4

GND CAN

P0_19

P0_20

P0_21

P0_22

P0_17

P0_18

P0_15

P0_16

D+

D-

USB

P2_7

P2_8

P2_9

P2_5

P2_6

3.8v LDO

P1_18

P1_19

P1_22

P0_10

P0_11

P0_27

P0_28

P1_22

GNSS

Receiver

Serial

I2C

sda

scl

sda

scl

rst

pps

int

3.3v LDO

en GNSS

Antenna

RF In / 3.3v DC Out

Cellular

Antenna

Ethernet7v -17 v DC In USB CMSIS-DAP

P0_6

C027-C20/U20/G35

www.u-blox.com

Reset _N Open Drain

P3_25 LED1

P0_7

GNSS Antenna Cellular Antenna

u-blox

Cellular

Modem Serial

cts

dcd

dsr

dtr

rts

cts

dcd

dsr

dtr

rts

rst

pwron

D+

D-

usbdet

usbcon

P0_8 i2c

P0_9 gpio / uart

Output enable for modem level shifters

Figure 1: C027-U20/C20/G35 pin definition

C027-U20/C20/G35 - User Guide

Starting up

UBX-13004386 - R01 Objective Specification Page 6 of 10

1.2 C027-U20/C20/G35 block diagram

Figure 2 shows the main interfaces and internal connections of the C027:

MAX 7Q

GNSS

module

Step - Down

Ethernet

connector

7 -17 V

Power

input

CAN

connector

Wireless module

LISA-U200 / LISA-C200/

SARA-G350

Main

ANT

USB B

connector

ARM Cortex-M3

LPC1768 MCU

Main CPU

ARM

Cortex-M0

LPC1768

GNSS

ANT

Step - Down

LDO

Reset

SIM card

holder

AnalogIn PwmOut

I2C

USB / UART

LDO EN

UART

I2C

UART

Eth

Serial

3V3

Ethernet

transceiver

3V3

3V8

Voltage

translators

UART control

Figure 2: C027 block diagram

1.3 C027 starter kit BoM

The C027 IoT starter kit contains the following items:

C027 PCB with cellular module, GNSS module, ARM CPU and all interfaces

GNSS antenna (Taoglas AA.161 or AA.162)

Penta-band cellular antenna (Taoglas TG.22.0111)

Quick start instruction card

1.4 Features

1.4.1 Cellular and GNSS modules

LISA-C200 (C027-C20), LISA-U200 (C027-U20) or SARA-G350 (C027-G35) cellular module (assembly

option)

MAX-7Q GNSS receiver

1.4.2 Main CPU

High-performance ARM(R) Cortex(TM)-M3 NXP LPC1768 MCU running at 96 MHz

512 kByte on-chip flash

64 kByte on-chip SRAM

1.4.3 Interfaces and electrical data

A standard-based header connector with

o6 analog inputs

o9 PWM capable outputs

o22 GPIOs

C027-U20/C20/G35 - User Guide

Starting up

UBX-13004386 - R01 Objective Specification Page 7 of 10

o1 x SPI

o1 x I2C

o1 x UART

o1 x I2S

GNSS antenna SMA connector for external GNSS antenna

Cellular antenna SMA connector for external cellular antenna

Ethernet RJ45 connector

CAN screw terminal connector

SIM mini SIM card holder

USB mini USB with mbed Interface

CMSIS-DAP

Drag and drop programming

Serial port

Power supply 7-17 V @ 900 mA (power jack or header connector pins)

IO voltage 3.3 V output, 5 V compatible input

1.5 C027-U20/C20/G35 connectors

Function

Description

7 - 17 V Power Input

+12 V / 2.5 A AC/DC power adapter input for the whole board supply

CAN connector

Controller Area Network controlled by Cortex-M3 processor

USB B connector

Functions: disk drive for drag and drop programming, CDC Serial Port, CMSIS-DAP debug

interface

Ethernet connector

Ethernet connector for Cortex-M3 processor

Cellular main antenna

SMA connector for the cellular module main antenna

SIM card holder

GNSS antenna

SMA connector for the GNSS antenna

Table 1: C027-U20/C20/G35 Connectors description

1.6 LEDs

Function

Description

Color

DPWR

USB cable plugged in USB B connector

UART

CDC serial port activity

MSD

Drag and drop programming activity

HID

CMSIS-DAP debug interface activity

NET_IND

Modem network indicator

Modem ring indicator

TPLS

Indicates GNSS is synchronized with GPS or UTC time grid

LED1

User / Error LED

Table 2: C027-U20/C20/G35 LEDs description

C027-U20/C20/G35 - User Guide

Getting started with mbed

UBX-13004386 - R01 Objective Specification Page 8 of 10

2Getting started with mbed

2.1 Board setup and settings

Insert the SIM card into the SIM connector (SIM card holder, not required for CDMA variants).

Connect the cellular antenna with SMA connector to the cellular main antenna SMA female connector.

Connect the GNSS antenna with SMA connector to GNSS antenna SMA female connector.

2.2 Board power supply

Connect a power supply to the “7 –17 V Power Input”connector (power supply is not included in the kit).

Provide power supply between 7 and 17 V to “VIN” pin of the row connector.

The 2 ways to supply the board are mutually exclusive.

2.3 Windows serial configuration

The mbed serial port works by default on Mac and Linux, but Windows needs a driver. The driver is available in:

https://mbed.org/handbook/Windows-serial-configuration.

2.4 Board interface settings

Connect a USB cable to the ”USB B”connector. Status light DPWR (green LED) will come on.

Connect the other interfaces (CAN, Ethernet) as needed.

The board is ready.

2.5 Getting started with mbed

Up-to-date information on how to operate the C027 starter kit within the mbed development environment

is available in: www.mbed.org/users/ublox/notebook/u-blox-C027-Getting-Started.

u-blox C027 downloading instructions: https://mbed.org/users/ublox/notebook/u-blox-C027-Downloading/

Creating a program: https://mbed.org/handbook/Creating-a-program

How to check your firmware version: https://mbed.org/users/ublox/notebook/ublox-C027-Update-CMSIS-

DAP-Interface-Firmware/

C027-U20/C20/G35 - User Guide

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