u-blox C030-R412M User Manual

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Abstract

This guide explains how to set up the C030 Arm® Mbed Enabled™ Internet of Things Starter Kit to

begin evaluating u-blox LTE Cat M1 / NB1 cellular and GNSS modules.

www.u-blox.com

UBX-19010121 - R01

C030-R412M

LTE Cat M1/NB1 and 2G Mbed Enabled™ IoT starter kit

User Guide

C030-R412M - User Guide

Title

C030-R412M

Subtitle

LTE Cat M1/NB1 and 2G Mbed Enabled™ IoT starter kit

Document type

User Guide

Document number

UBX-19010121

Revision and date

R01

01-Jul-2019

Disclosure Restriction

Product status

Corresponding content status

Functional Sample

Draft

For functional testing. Revised and supplementary data will be published later.

In Development / Prototype

Objective Specification

Target values. Revised and supplementary data will be published later.

Engineering Sample

Advance Information

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

Initial Production

Early Production Information

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

Mass Production / End of Life

Production Information

Document contains the final product specification.

Product name

Type number

Firmware version

PCN reference

Product status

C030

C030-R412M-0-00

G0.V.00.00.10R

UBX-19027009

Initial production

u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this document. Copying, reproduction, modification or disclosure to third parties of this document or any part thereof is only permitted with the express written permission of u-blox. The information contained herein is provided “as is” and u-blox assumes no liability for its use. No warranty, either express or implied, is given, including but not limited to, with respect to the accuracy, correctness, reliability and fitness for a particular purpose of the information. This document may be revised by u-blox at any time without notice. For the most recent documents, visit www.u-blox.com. Arduino® is a trademark of Arduino Srl or Arduino LLC registered and/or used in the EU, the U.S. and other countries/regions. Arm and Mbed™ are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere. JT® is a registered trademark of JTGlobal Limited in the EU, the U.S. and other countries/regions Copyright © u-blox AG.

Document Information

This document applies to the following products:

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C030-R412M - User Guide

Document Information ................................................................................................................................ 2

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

1 Overview ................................................................................................................................................... 4

Using this guide .................................................................................................................................................... 4

Warnings and certifications .............................................................................................................................. 5

2 Hardware description ........................................................................................................................... 6

2.1 C030-R412M block diagram ...................................................................................................................... 8

2.2 Buttons, jumpers and switches ............................................................................................................. 10

2.2.1 Utilization of cellular modem USB sniffer ..................................................................................... 11

2.3 LED indicators ............................................................................................................................................ 12

2.4 Connectors ................................................................................................................................................. 13

2.5 Configuration links / components ......................................................................................................... 14

2.6 Test, break out points, and debug interfaces ..................................................................................... 18

2.7 Arduino™ UNO R3 compatible interface pin out ................................................................................. 19

2.8 Power supply options and LiPo battery usage .................................................................................... 20

3 Getting started ..................................................................................................................................... 22

3.1 C030-R412M board setup ....................................................................................................................... 22

3.2 Development PC USB driver configuration .......................................................................................... 22

3.3 Getting started with Mbed ...................................................................................................................... 22

4 Approvals ............................................................................................................................................... 23

4.1 European Conformance ........................................................................................................................... 23

4.2 US Federal Communications Commission notice .............................................................................. 24

4.3 Innovation, Science, Economic Development Canada notice .......................................................... 24

Appendix ........................................................................................................................................................25

A Glossary ..................................................................................................................................................25

Related documents ....................................................................................................................................26

Revision history ...........................................................................................................................................26

Contact ........................................................................................................................................................... 27

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C030-R412M - User Guide

1 Overview

The u-blox LTE Cat M1/NB1 and 2G Mbed Enabled™ IoT starter kit is a versatile development platform that allows quick prototyping of a variety of applications for low-power Internet of Things (IoT).

The u-blox C030-R412M belongs to the u-blox C030 application board family, which consists of several variants based on the type of u-blox cellular module used:

 SARA-U201 HSPA module with 2G fallback  SARA-N211 NB-IoT (LTE Cat NB1) module  SARA-R412M LTE Cat M1 / NB1 and 2G module  LARA-R3121 LTE Cat 1 single-mode module with integrated GNSS receiver

The u-blox C030 application boards, except C030-R3121, have a u-blox MAX-M8C module or a ZOE GNSS SiP as a concurrent GNSS receiver, thereby enabling straight forward development of locationaware, globally communicating applications.

The u-blox C030-R412M board provides access to a variety of hardware interfaces (10/100 Mb/s Ethernet, 22 GPIOs with SPI, I2C, UART, PWM) through the Arduino™ Uno R3 compatible header connector.

An eUICC (embedded SIM) is integrated on the u-blox C030-R412M-U201 / C030-R3121 variants. The eUICC comes with International Data Roaming Cellular Connectivity Service by JT® JTGlobal (formerly Jersey Telecom) with 50 MB of data for the period of 90 days, which can be topped up and extended on demand.

The u-blox C030-R412M board is powered by an Arm® Cortex-M4 based ST® STM32F437VGT Host microcontroller, which is fully supported by the Arm® Mbed™ platform. The microcontroller has 512 kB flash, 64 kB RAM, and runs an up-to-96 MHz system clock. The board provides simple USB drag-ndrop programming and an ST-Link debug interface for the Host microcontroller. The Arm 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 Arm Mbed compiler also supports full export to various tool chains, for projects that demand it as they go into production.

The u-blox C030-R412M also works with a wide choice of Integrated Development Environments (IDEs) including but not limited to Arm® Keil®, GCC-based Eclipse IDEs.

This document applies to the C030-R412M variant integrating the SARA-R412M LTE Cat M1/NB1 and 2G module, and the ZOE-M8B GNSS receiver SiP (System-in-Package) only.

Using this guide

This guide assumes the user has basic computer skills and is familiar with the Windows Graphical User Interface (GUI) and cellular module environments.

The following symbols are used to highlight important information in the document:

☞ An index finger points out key information pertaining to device operation and performance.

⚠ A warning symbol indicates actions that could negatively impact or damage the device.

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C030-R412M - User Guide

C030-R412M is an Electrostatic Sensitive Device (ESD).

CAUTION! Risk of short circuit of the battery when touching it with conducting parts. In the unlikely event of a failure in the internal protection circuitry, there is a risk of an explosion when charging fully or partially discharged batteries. Replace the battery if it no longer has sufficient charge for unit operation. Control the battery before using it if the device has not been operated for an extended period of time.

Warnings and certifications

C030-R412M application boards comply with the Directive 2011/65/EU of the European Parliament and the Council on the Restriction of Use of certain Hazardous Substances in Electrical and Electronic Equipment (EU RoHS 2) and its amendment Directive (EU) 2015/863 (EU RoHS 3).

C030-R412M application boards are RoHS 3 compliant and green (no halogens).

See section 4 for further details about certification approvals.

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C030-R412M - User Guide

2 Hardware description

The u-blox C030-R412M has the following onboard hardware features:

 u-blox SARA-R412M LTE Cat M1/NB1 and 2G module  u-blox ZOE-M8B concurrent GNSS receiver SiP for up to 3 GNSS (GPS, Galileo, GLONASS, and

BeiDou)

 STM32F437VG Cortex-M4 ARM Host MCU with 1024 kB Flash, 256 kB SRAM and SWD connector

o 12 MHz crystal oscillator for system clock o 32.768 kHz crystal oscillator for real-time clock o 1.8 V operation

 On-board ST-Link/V2-1 debugger/programmer with SWD connector

o ST-Link/V2-1 standalone development and debug capability o USB re-enumeration; Virtual COM port, Mass Storage Device and Debug Port o 5V from ST-Link/V2-1 Debug USB VBUS, 3.3V operation o (CMSIS-DAP variant of the FW with extended features will be available in the future)

 On-board TI® bq24295 Single Cell LiPo battery charger and TI® bq27441-G1 Battery Fuel Gauge  Molex® SPOX™ 5268-03A LiPo battery connector

o Supports battery types like LP-503759-IS-3 from BAK (battery is not included)

 On-board SiLabs® CP2105 USB to Dual UART Bridge as Serial USB sniffer

o Alternative to ST-Link/V2-1 Virtual COM Port when ST-LINK/V2-1 is not used/available o Alternative to Main Supply and Debug USB 5V VBUS inputs o Sniffing serial communication between the Host MCU and the Cellular module

 RGB User LED, and two push buttons: User and Reset  On-board SiLabs® Si7034-A10 Humidity and Temperature Sensor

o Only the temperature sensor is used; it cannot be used for humidity measurements

 SD card socket for file storage  SMA RF connectors for 50 Ω cellular and GNSS active antennas  MicroSIM card holder  Extension:

o Arduino™ Uno R3 compatible interface o 6 analog capable inputs o 8 PWM capable outputs o 22 GPIOs o 1 x SPI o 1 x I2C o 1 x UART with HW flow control option (RTS, CTS)

 Flexible board power supply:

o 5 V main supply USB, debug USB, and sniffer USB VBUS inputs o Arduino UNO R3 VIN input for external power supply

⚠ VIN voltage level should not exceed the C030 component and SARA-R412M absolute maximum

ratings.

o 2.8 V to 4.4 V LiPo Battery input

 Support of a wide range of Integrated Development Environments (IDEs), including but not limited

to GCC-based IDEs, ARM mbed

 ARM mbed Enabled (see http://mbed.org)

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C030-R412M - User Guide

Figure 1: C030-R412M application board overview

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C030-R412M - User Guide

VSYS

2.1 C030-R412M block diagram

Figure 2 shows the block diagram of the C030-R412M.

Figure 2: C030-R412M block diagram

Figure 2 shows the major interfaces and internal connections of the C030-R412M.

The major component layout of the board is provided in Figure 3.

The C030-R412M consists of three sections:

Utility section

The utility section accommodates the components that provide SW debugging / virtual COM port (ST-Link/CMSIS-DAP) and Ethernet Interface functions. The SW debugging / virtual COM port functions are executed by the InterfaceMCU via the “Debug USB” interface.

As this section is only needed during the application development and test activities, it could be physically snapped off from the application section to decrease the size and power consumption.

The utility section is powered up from the “Debug USB” 5V VBus. When the “Debug USB” is not connected, SW debugging / virtual COM port and Ethernet Interface functions are turned off and isolated from the application section.

The “Auxiliary 5V USB” connector on the utility section could be used to boost the power input to the application section if the current input from the “Debug USB” 5V Vbus is not sufficient.

Application section

The application section accommodates the GNSS and cellular modules, a eUICC (Embedded SIM) / MicroSIM socket, the HostMCU, the battery charging/management and power supply circuitry, the SD card interface and socket, the Serial USB sniffer for communication between the HostMCU to the cellular module and similarly to the InterfaceMCU. The application section also has a temperature sensor for measuring ambient temperature of the board. Reset and user buttons, configuration jumpers and User and system status indication LEDs are placed in the application section.

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C030-R412M - User Guide

The application section is designed for minimal power consumption. Unutilized circuitries and sections could be either turned off by software or inhibited electronically.

The Arduino Uno R3 interface on the application section could be used to integrate sensors, actuators and power/battery supply circuitries as Arduino Shields/expansion daughter PCBs.

The application section could run standalone when the utility section is snapped off.

Antenna section

The C030-R412M has SMA Jack edge connectors for Cellular and GNSS antennas.

The C030-R412M major component layout is provided in Figure 3.

Figure 3: C030-R412M major component locations

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C030-R412M - User Guide

Annotation

Function

Description

Section

USER

User button

Push button for application use. Connected to HostMCU GPIO Port PC13

Application RST1

Reset button

Push button to reset the HostMCU

Application

System power jumper

System power input selection:

 Pin 1-2: on board Power/Battery Management (default

configuration)

 Pin 2-3: VIN pin of Arduino Uno R3 interface

Application

Serial USB sniffer source select

Select the cellular module communication UART channel to sniff:

 Position 1: isolation  Position 2: UART1 communication between HostMCU and

cellular module

Application

2.2 Buttons, jumpers and switches

The C030-R412M is equipped with several buttons, jumpers and a switch that the user can easily utilize. The functions and locations of these components are provided in Table 1 and shown in Figure 3.

Table 1: C030-R412M buttons, jumpers, and switches

Figure 4 shows the C030-R412M P1 and P3 jumpers and S2 switch positions.

Figure 4: C030-R412M jumper and switches

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C030-R412M - User Guide

2.2.1 Utilization of cellular modem USB sniffer

The C030-R412M cellular modem USB sniffer provides two virtual UART COM channels to the connected USB master (development PC). The cellular modem USB sniffer USB VBUS 5VDC rail power the application section of the C030-R412M. The virtual COM ports are utilized as follows;

 Standard COM port as on the development PC: HostMCU USART2 Tx “printf” Channel sniffing

o HostMCU USART2 Tx is also connected to the InterfaceMCU on the utility section o HostMCU USART2 Rx is connected to InterfaceMCU on the utility section o Host HostMCU USART2 Rx can be connected to cellular modem USB sniffer Standard COM

port Tx channel via R137 link (see Table 4). In this case, do one of the following:

 The utility section should be powered off (disconnect Debug USB)  Snap off the utility section  Remove R133 link (see Table 4)

 Enhanced COM port as on the development PC. Two operation modes can be selected by using S2

switch (see Figure 4):

o S2 position 1: Isolation o S2 position 2: HostMCU USART1 to cellular module communication. Allows direct access to

the cellular module. In this case, do one the following:

 Remove R105 link  Set the HostMCU PA_5 Port as GPIO input to avoid collusion

☞ Enhanced COM port Mode 1 direct access to the cellular module allows using development PC

applications like u-blox m-center, to exercise cellular module AT command interface bypassing the C030-R412M HostMCU.

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C030-R412M - User Guide

Annotation

Function

Description

Color

LED1

Debug USB VBUS

VBUS 5 V indicator for InterfaceMCU supply

LED2

Serial USB Sniffer VBUS

VBUS 5 V indicator for serial USB sniffer supply

LED3

Aux 5 V USB VBUS

VBUS 5 V indicator for 5 VDC supply input

LED4

Cellular module USB VBUS

VBUS 5 V indicator

LED5

Battery charging / man. Input

Battery Charging/Management 5 VDC input supply indicator

LED6

STLink/CMSIS-DAP status

InterfaceMCU Debugging/Flashing status RED/GREEN indicator

LED7

Battery charging status

Battery Charging/Management battery charging status indicator

User RGB LED

HostMCU GPIO driven; PE_3: RED, PE_4: GREEN, PE_1: BLUE (all negative logic)

ETH green1

ETH connection speed

Connection speed indication. On:100 Mb/s, Off:10 Mb/s

ETH yellow1

ETH transaction/traffic

Indicates Ethernet transaction. Controlled by HostMCU GPIO PE_7

2.3 LED indicators

The C030-R412M has a few LEDs to indicate the board status for generic application use. Due to the low power design of C030-R412M, if the C030-R412M is not connected to an external power source or is powered from battery only, all the LEDs except D3 (User RGB LED) are turned off.

As the D3 and LED_G3 LEDs are controlled by the application, they can be completely turned off to save power.

The C030-R412M LED indicators are listed in Table 2 and their locations are depicted in Figure 3.

Table 2: C030-R412M LED indicators

Ethernet LED indicators are powered by 3.3 VDC generated from the Debug USB VBUS, which powers the whole Utility section. If the Debug USB is not connected to a USB master (for example, a development PC), the Utility section is powered down, and therefore the Ethernet LED indicators do not light up.

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C030-R412M - User Guide

Name

Function

Description

Section

ETH1

Ethernet receptacle

10/100 Mb/s Ethernet network connector

Utility

Auxiliary 5V USB

Micro USB device connector for auxiliary 5 VDC supply input to connect a high current 5 VDC PSU

Utility

Debug USB

Micro USB device connector for 5 VDC supply and ST-Link/CMSISDAP debug interface

Utility J2

Micro SD card socket

Micro SD card holder for FAT file system

Application

Serial USB sniffer

Micro USB device connector for 5 VDC supply and serial USB sniffer interface

Application

J4/J5

LiPo battery connector

LiPo chargeable battery connector. J4: Not populated alternative connector, J5: Molex 22-05-7035

Application J7

Cellular module USB

Micro USB device connector for cellular module USB interface

Application

SIM card holder

SIM card holder (for C030-N211 and C030-R410M only)

Application

SWD

InterfaceMCU debug

10-pin Arm Cortex debug connector for InterfaceMCU (may not be populated)

Utility

ST_SWD

InterfaceMCU debug

Tag-Connect-NL Plug-of-Nails™ connector compatible PCB touch points footprint for InterfaceMCU

Utility

SWD_TARGET

HostMCU debug

10-pin Arm Cortex debug connector for InterfaceMCU (may not be populated)

Application

SWD_TGT1

HostMCU debug

Tag-Connect-NL Plug-of-Nails connector compatible PCB touch points footprint for HostMCU

Application ANT

Cellular main antenna

SMA connector for the cellular module primary antenna (ANT1, Tx/Rx)

Application

GPSANT

GNSS receiver antenna

SMA connector for the ZOE-M8B GNSS receiver

Application

2.4 Connectors

The C030-R412M has various connectors as listed in Table 3. See Figure 3 for connector locations.

Table 3: C030-R412M connector description

☞ The J2 Micro SD card socket shares the Arduino interface D10 to D13 pins, which are used as an

SPI bus to the HostMCU SPI4 peripheral. The D10 pin (NSS) is used as an SD card SPI slave select signal. When the SPI bus on the Arduino interface is utilized by other SPI slaves on daughter boards, free Arduino digital IO lines should be utilized for slave select signals.

⚠ As the SD card interface and its supply voltage are designed to work with 3.3 VDC, the SD card

socket shall not be used when the Arduino interface IOREF voltage level is set to higher than

3.3 VDC. Such usage could cause a permanent damage and/or a failure to an SD card inserted in the J2 socket and the C030-R412M’s Arduino™ interface level translators. (See R152 and R153 links in Table 4).

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C030-R412M - User Guide

Name

Function

Variant2 R412M

Description

InterfaceMCU 1.8VDC supply sampling



Utilized for monitoring HostMCU 1.8 VDC supply level through a voltage divider

InterfaceMCU PB_3 port pull up link



Link to InterfaceMCU 3.3 VDC rail

InterfaceMCU 3.3VDC analog reference link



Reference voltage for InterfaceMCU AtoD conversion

Cellular module current sense



(Provisional3) Connected to cellular module power supply current instrumentation amplifier output to measure the current level

GNSS module current sense



(Provisional3) Connected to GNSS module power supply current instrumentation amplifier output to measure the current level

R14

InterfaceMCU 32 kHz clock input



Ground connection

R15

InterfaceMCU BOOT0 pull up



Link to InterfaceMCU 3.3 VDC PSU

R20

InterfaceMCU USART2 virtual COM Tx link



Link to HostMCU USART1 Tx signal through 3.3 V to 1.8 V level translator

R21

InterfaceMCU USART2 virtual COM Rx link



Link to HostMCU USART1 Rx signal through 3.3 V to 1.8 V level translator

R22

InterfaceMCU virtual COM loop back



For testing InterfaceMCU Virtual COM port

R23

InterfaceMCU I2C1 SDA link



(Provisional4) Link to HostMCU I2C3 SDA bus through 3.3 V to

1.8 V level translator

R25

InterfaceMCU I2C1 SCL link



(Provisional4) Link to HostMCU I2C3 SCL bus through 3.3 V to

1.8 V level translator

R31

Arduino Interface IOREF to 3.3V



33 Ω link to 3.3 VDC

R33

Arduino Interface 3.3V supply



Link to 3.3VDC rail

R38

Arduino Interface A4 pin voltage divisor



1 kΩ voltage divisor resistor for analog input. It could be removed for I2C SDA alternative usage

R39

Arduino Interface A5 pin voltage divisor



1 kΩ voltage divisor resistor for analog input. It could be removed for I2C SCL alternative usage

R47

HostMCU BOOT1 pull down



HostMCU BOOT1 input setting to ‘0’

R48

HostMCU temperature sensor power link



Si7034-A10 Temperature sensor power supply link5. Supply feeding to the temperature sensor from the HostMCU PD_ 14 when it is set to ‘1’. PD_14 Push-Pull output circuitry limits the current to the sensor.

R53

HostMCU 32 kHz RTC link



Links RTC crystal to the HostMCU

R56

Application section 3.3VDC PSU control



Links the HostMCU PE_0 port to control 3.3VDC PSU. ‘0’:disable, ‘1’:enable

R59

HostMCU reset pull up



The application section reset circuitry pull up resistor

R60

HostMCU 32KHz RTC link



Links RTC crystal to the HostMCU

R61

HostMCU 12MHz XTAL link



The HostMCU 12 MHz crystal link

2.5 Configuration links / components

The C030-R412M has multiple configurations links and components as SMT footprints, which require de-soldering/soldering these links or components on the PCB. The footprints of these configuration links, which are listed in Table 4 and depicted in Figure 5, are adequate to solder 0603 SMT components or short with solder.

: Connected/populated, : Not connected/open Provisional feature (Module current consumption): instrumenting the current consumption of the Cellular and GNSS Modules

from the InterfaceMCU to characterize and instrument the application behavior during development.

Provisional feature (I2C Bus Access): accessing Application section sensors and devices on the HostMCU I2C3 Bus from

InterfaceMCU to characterize and instrument the application behavior during development.

The Si7034-A10 is a Temperature and Relative Humidity Sensor. The HostMCU PD_4 port cannot provide enough current to

the sensor to run the Humidity sensor’s heating element. So, the Humidity feature of the sensor shall not be used.

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C030-R412M - User Guide

Name

Function

Variant2 R412M

Description

R63

IC19 BQ27441 BIN pull up link to BQVDD



Provisional

R68

HostMCU BOOT0 pull down



HostMCU BOOT0 10 kΩ pull down to ground for input setting to ‘0’

R73

GNSS module backup supply by-pass



ZOE-M8B V_BCKP by-pass

R77

Cellular module voltage translator supply



Voltage translator supply level for the cellular module side for the HostMCU USART1 communication. Link the translator supply input to cellular module’s V_INT internal supply output

R78

Cellular module voltage translator supply



Voltage translator supply level for the cellular module side for the HostMCU USART1 communication. Link the translator supply input to the application section supply rail VSYS

R79

LiPo battery charging link



Battery charging and management circuitry link to LiPo battery for charging

R86

Icellular signal pull down



Provisional

R95

Cellular module UB_M_PWRON to M_VBCKUP link



100 kΩ connection between M_VBCKUP and UB_M_PWRON nets R96

Cellular module V_BCKP link



Link to M_VBCKUP net

R97

Cellular module PWR_ON link



The HostMCU PD_2 port UB_M_PWRON signal to cellular module PWR_ON pin

R99

The HostMCU PC_11port to cellular module GPIO1 link



Not functional

R100

Serial USB sniffer to cellular module GPIO1 link



Not functional R101

Cellular module USB VBUS link



Cellular module VUSB_DET

R102

Cellular module GPIO2 link



Link to the HostMCU PD_1 port

R103

Cellular module GPIO4 link



Not functional

R104

Cellular module USB Data_N signal link



Cellular module USB signal to J7 cellular module USB connector

R105

HostMCU USART1 Tx link



When removed isolates HostMCU USART1 Tx pin PA_9 from the cellular module. Could be used in a configuration to drive the cellular module from the serial USB sniffer directly.

R107

Cellular module USB Data_P signal link



Cellular module USB signal to J7 cellular module USB connector

R108

InterfaceMCU PSU EN reference



PSU EN voltage threshold voltage divider resistor

R111

HostMCU USART1 Rx link



When removed isolates HostMCU USART1 Rx pin PA_10 from the cellular module Could be used in a configuration to drive the cellular module from the serial USB sniffer directly

R112

IC19 BQ27441 BIN link to LiPo battery



Provisional

R113

Cellular module I2C SCL link



Not functional

R114

Cellular module I2C SDA link



Not functional

R115

Cellular Module GPIO2 option



Cellular module GPIO2 to ground

R116

Cellular Module Pin 21 option



Cellular module Pin 21 to ground

R117

Cellular Module RSVD pin option



Cellular module RSVD pin to ground

R119

Arduino™ Uno R3 interface A5 pin I2C

provision



Link to Arduino™ Uno R3 interface SCL pin

R120

Arduino™ Uno R3 interface A4 pin I2C

provision



Link to Arduino™ Uno R3 interface SDA pin R121

GNSS PPS LED G3 disable option



Link to LED

R123

GPS_RST net link



Provisional

R124

HostMCU 1.8V Backup Battery link



Links the 1.8V battery backed supply rail to the HostMCU 4 kB of battery backed SRAM

R131

IC20 BQ24295 QON Pull down



Provisional

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C030-R412M - User Guide

Name

Function

Variant2 R412M

Description

R132

InterfaceMCU level translator OE to

3.3VDC



Links OE input of the level translator to 3.3VDC

R133

HostMCU USART2 virtual COM Rx link



Link to InterfaceMCU USART2 Rx signal through 1.8V to 3.3V level translator

R134

HostMCU USART2 virtual COM Tx link



Link to InterfaceMCU USART2 Tx signal through 1.8V to 3.3V level translator

R135

HostMCU external system clock (Osc.) link



Link to 8 MHz clock generated from InterfaceMCU to drive the HostMCU

R136

HostMCU USART2 USB sniffer Tx link



Link to serial USB sniffer Rx input

R137

HostMCU USART2 USB sniffer Rx link



Link to serial USB sniffer Tx output

R142

InterfaceMCU 3.3VDC supply sampling



Utilised for monitoring InterfaceMCU 3.3VDC supply level

R143

InterfaceMCU level translator OE GND link



Links OE input of the level translator to GND to disable the translator

R144

HostMCU PA_0 pull up



HostMCU PA_0-WKUP pin setting

R145

HostMCU BOOT1 pull up



HostMCU BOOT1 input setting to ‘1’

R146

HostMCU BOOT0 pull up



HostMCU BOOT0 input setting to ‘1’

R147

Serial USB sniffer reset link



Link between serial USB sniffer’s reset input to the application section reset signal

R149

Cellular Module DTR pull down



SARA-R412M DTR input pull down

R150

The Si7034-A10 is a Temperature and Relative Humidity Sensor power link



Link to 1.8VDC supply rail. See R48 link for utilization. R151

Arduino™ interface 1.8V IO supply option



Provisional

R152

Arduino™ interface IOREF voltage level

selection for 3.3VDC



Link to Arduino™ interface 3.3V pin

R153

Arduino™ interface IOREF voltage level

selection for 5VDC



Link to Arduino™ interface 5V pin R154

Arduino™ interface 5V pin to USB5V rail



USB5V supply link for Arduino™ interface

R160

M_GPIO3 net to PB8 link



Link to Arduino™ interface

R161

M_GPIO4 net to PB15 link



Link to Arduino™ interface

R162

GPS_PPS net to cellular module GPIO1 link



Link to SARA-R412M GPIO1 R164

IC22 output link to GNSS module



Provisional

R165

1V8_ZOE supply link to GNSS module



1.8V Supply rail to ZOE-M8B

R167

IC22 100k resistor



Provisional

R168

M_GPIO3 net link to cellular module



Link to SARA-R412M GPIO3

R170

M_VINT net link to cellular module GPIO5



Link to SARA-R412M GPIO5

R171

Arduino™ interface D5 pin to IC10 link



Provisional isolation

R172

IC10 A6 pin to PA5 link



Provisional isolation

R173

PA5 to Arduino™ interface D5 pin direct

link



Provisional R174

USART1_TX net USB sniffer link



Link to S2 switch

R175

I_GNSS signal connection to Arduino™ interface A1



Provisional R178

PC8 link to Arduino™ interface D4



Link to Arduino™ interface

R179

PB1 connection to Arduino™ interface D4



Provisional for backward compatibility

R180

Cellular module M_SCL net to Arduino™

interface SCL pin



Provisional

R181

Cellular module M_SDA net to Arduino™

interface SDA pin



Provisional

UBX-19010121 - R01 Hardware description Page 16 of 27

C030-R412M - User Guide

Name

Function

Variant2 R412M

Description

R182

U_GNSS signal connection to Arduino™

interface A2



Provisional

R183

VC Cellular supply rail connection to Arduino™ interface A3



Provisional

R184

I_GNSS instrumentation signal link to PB1



Provisional measurement signal R185

USART1_Tx net to PD8 link



Link to Arduino™ interface

R186

USART1_Rx net to PD9 link



Link to Arduino™ interface

R187

SDCard Detect signal pull up



Provisional pull up for PE8

R7122

Arduino™ interface A0 to MCUWKUP net



Provisional

Table 4: C030-R412M HW configuration links and components

Figure 5: C030-R412M configuration links and components

UBX-19010121 - R01 Hardware description Page 17 of 27

C030-R412M - User Guide

Name

Signal

Cellular module supply voltage

GNSS module supply voltage

InterfaceMCU SWDCLK

InterfaceMCU SWDIO

InterfaceMCU reset

3.3 VDC supply for InterfaceMCU

OE signal for IC4 level translator between utility and application sections

08 to 19

N/A

1.8VDC supply for Host MCU

Host MCU SWDIO

Host MCU Reset

Host MCU SWDCLK

Host MCU BOOT0

Cellular module pin 44 break-out (SPK_P). Unused

Cellular module pin 45 break-out (SPK_N). Unused

Cellular module pin 46 break-out (MIC_BIAS). Unused

Cellular module pin 47 break-out (MIC_GND). Unused

Cellular module pin 48 break-out (MIC_N). Unused

Cellular module pin 49 break-out (MIC_P). Unused

RSVDS1

Cellular module pin 19 break-out (RSVD, Reserved). Unused

ST-SWD1

Tag-Connect-NL Plug-of-Nails™ connector compatible PCB touch points footprint for Interface MCU

SWD_TGT1

Tag-Connect-NL Plug-of-Nails™ connector compatible PCB touch points footprint for Host MCU

2.6 Test, break out points, and debug interfaces

The C030-R412M has test and break out points to access key signals of the circuitry as well as interface and Host MCU debug interfaces placed on the bottom side of the PCB for easy access. These are listed in Table 5 and depicted in Figure 6.

Table 5: C030-R412M test and break out points and debug interfaces

Figure 6: C030-R412M test and break out points and debug interfaces (bottom view)

UBX-19010121 - R01 Hardware description Page 18 of 27

C030-R412M - User Guide

Conn.

Pin N°

Arduino naming

Description

HostMCU port assignment

Alternate functions and notes

Ard1A

n.c.

Not connected

IOREF

IO reference voltage level. Connected to 3.3 VDC

Could be used as input for external IO level setting.

Reset signal input. Negative logic

3.3V

3.3 VDC supply output

Controlled by HostMCU Port PE_0 0: disable, 1:enable

5 VDC Reference input

Could be used as IO Reference input

GND

Ground level

GND

Ground level

VIN

External DC supply input

In the range of 2.5 VDC to 5.5 VDC

See Jumper J1 in section 2.4

Ard1B

Analog input

PA_3 Analog input6

GPIO, Ext. interrupt

Analog input

PC_0 Analog input6

GPIO, Ext. interrupt

Analog input

PC_3 Analog input6

GPIO, Ext. interrupt

Analog input

PA_4 Analog input6

GPIO, Ext. interrupt

Analog input

PA_6 Analog input6, PB_7 I2C1 SDA7

GPIO, Ext. interrupt

Analog input

PB_0 Analog input6, PB_6 I2C1 SCL8

GPIO, Ext. interrupt

Ard1C

Digital I/O, UART RX

PD_9, USART3_TX

GPIO, Ext. interrupt

Digital I/O, UART TX

PD_8, USART3_RX

GPIO, Ext. interrupt

Digital I/O

PD_11

USART3_CTS, GPIO, External interrupt

Digital I/O

PB_14

USART3_RTS, GPIO, PWM, Ext. interrupt

Digital I/O

PC_8

GPIO, PWM, Ext. interrupt

Digital I/O

PA_5

GPIO, PWM, Ext. interrupt

Digital I/O

PB_8

GPIO, PWM, Ext. interrupt

Digital I/O

PB_15

GPIO, PWM, Ext. interrupt

Ard1D

Digital I/O

PD_15

GPIO, Ext. interrupt

Digital I/O

PD_12

GPIO, Ext. interrupt

D109

Digital I/O

PE_11, SPI4 NSS, shared with SD Card

GPIO, PWM, Ext. interrupt

D11

Digital I/O

PE_6, SPI4 MOSI, shared with SD Card

GPIO, PWM, Ext. interrupt

D12

Digital I/O

PE_5, SPI4 MISO, shared with SD Card

GPIO, PWM, Ext. interrupt

D13

Digital I/O

PE_2, SPI4 SCK, shared with SD Card

GPIO, Ext. interrupt

GND

Ground level

AREF

3.3 VDC reference

SDA

I2C SDA I/O

PB_6 I2C1 SCL

GPIO, Ext. interrupt

SCL

I2C SCL Output

PB_7 I2C1 SDA

GPIO, Ext. interrupt

2.7 Arduino™ UNO R3 compatible interface pin out

C030-R412M Arduino™ compatible interface details are given in Table 6 and shown in Figure 7.

Table 6: C030-R412M Arduino UNO R3 compatible interface

Pin is connected to the port via 1 kΩ/1 kΩ resistive voltage divider. PB_7 could be connected to the (A4) Ard1B pin 13 to provide I2C1 SDA signal. PB_6 could be connected to the (A5) Ard1B pin 14 to provide I2C1 SCL signal. Arduino interface D10 to D13 pins are used as an SPI Bus to HostMCU SPI4 peripheral. The D10 to D13 pins are shared with the

SD card socket.

UBX-19010121 - R01 Hardware description Page 19 of 27

C030-R412M - User Guide

Connector

Description

Debug USB

Uses development PC’s USB 5 VDC VBUS to power up the utility and application sections of the C030-R412M. It charges up the LiPo battery if it is connected.

Aux 5V USB

Auxiliary USB power input. A USB power supply could be connected to power up only the application section of the C030-R412M.

It charges up the LiPo battery if it is connected. There is no communication functionality.

Serial USB sniffer

Uses Development PC’s USB 5 VDC VBUS to power up only the application section of the C030. It charges up the LiPo battery if it is connected. The serial USB sniffer circuitry could only be powered from its dedicated USB connector.

LiPo battery

The C030 application section could run only from a LiPo Battery connected. If one or many of the #1, #2, #3 USB connections are available. The LiPo Battery is charged up as well.

Arduino™ UNO R3 VIN Pin 8

Arduino™ UNO R3 VIN pin 8 could be used to power up entire the C030 application section

except serial USB sniffer circuitry. STLink (or CMSIS-DAP when available) feature could be used through the debug USB. However, the C030-R412M application section including LiPo Battery management circuitry is disconnected. The VIN input voltage should be in the range of 2.5 VDC to 5.5 VDC.

Figure 7: C030-R412M Arduino™ UNO R3 connectors

2.8 Power supply options and LiPo battery usage

The C030-R412M can be powered up from several resources, individually or all together. The power supply usage configurations are provided in Table 7.

Table 7: C030 power supply options and LiPo battery usage

☞ The C030-R412M could run on a single supply input from #1 debug USB or #3 serial USB sniffer.

However, the cellular module transmission power demand might not be satisfied from these connections. In such a use case, the C030-R412M might suffer brownout due to USB VBUS supply rail cuts because of USB current limitations. Therefore, either a 5 VDC USB power supply with ~3 ADC capacity should be connected to the Aux 5V USB connector and/or an adequate LiPo battery, such as a BAK LP-503759-IS-3, should be connected to the LiPo battery connector. The locations of the power supply connections are shown in Figure 8.

It is recommended to use a LiPo battery in addition to the USB connections, because high frequency current demands might not be provided by the USB VBUS rails.

UBX-19010121 - R01 Hardware description Page 20 of 27

C030-R412M - User Guide

Figure 8: C030 power supply connection options

UBX-19010121 - R01 Hardware description Page 21 of 27

C030-R412M - User Guide

3 Getting started

3.1 C030-R412M board setup

1. Connect the Main cellular antenna to the cellular main antenna SMA female connector (ANT1).

2. Connect the GNSS antenna to the GNSS antenna SMA female.

3. Configure the C030-R412M as described in section 2.2.

4. Power up the C030-R412M as described in section 2.8.

3.2 Development PC USB driver configuration

Although the USB drivers can be loaded by the development PC operating system automatically, it is recommended to follow the guidelines mentioned below:

 The debug USB port STLink/V2-1 interface needs a driver. These drivers are available at:

http://www.st.com/content/st_com/en/products/embedded-software/development-toolsoftware/stsw-link009.html.

 Similarly, the cellular modem USB sniffer USB port interface needs a driver, which is available at:

http://www.silabs.com/products/interface/usb-bridges/classic-usb-bridges/device.cp2105

3.3 Getting started with Mbed

Up-to-date information on how to operate the C030-R412M starter kit within the Mbed development environment is available at:

 https://developer.mbed.org/platforms/ublox-C030-R412M/

(Link forwards automatically to the site https://os.mbed.com/platforms/ublox-C030-R410M/)

UBX-19010121 - R01 Getting started Page 22 of 27

C030-R412M - User Guide

4 Approvals

☞ For the detailed list of Radio Access Technologies and bands included in each certification

approval of the SARA-R412M modules, and for detailed instructions about how to configure the SARA-R412M modules for certification approvals compliance perspective, see the Approvals sections of the SARA-R4/SARA-N4 series System Integration Manual [2].

4.1 European Conformance

The C030-R412M application board has been evaluated against the essential requirements of the 2014/53/EU Radio Equipment Directive.

In order to satisfy the essential requirements of the 2014/53/EU Radio Equipment Directive, the device is compliant with the following standards:

 Radio Frequency spectrum use (Article 3.2):

o EN 301 511 o EN 301 908-1 o EN 301 908-13 o EN 303 413

 Electromagnetic Compatibility (Article 3.1b):

o EN 301 489-1 o EN 301 489-19 o EN 301 489-52

 Health and Safety (Article 3.1a)

o EN 62311 o EN 62368-1 o EN 60950-1

The conformity assessment procedure for C030-R412M application boards, referred to in Article 17 and detailed in Annex III of Directive 2014/53/EU, has been followed.

Thus, the following marking is included in the product:

There are no restrictions for the commercialization of the C030-R412M application boards in all the countries of the European Union.

⚠ Radiofrequency radiation exposure Information: this equipment complies with radiation exposure

limits prescribed for an uncontrolled environment for fixed and mobile use conditions. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and the body of the user or nearby persons. This transmitter must not be collocated or operating in conjunction with any other antenna or transmitter except as authorized in the certification of the product.

⚠ The gain of the cellular system antenna(s) used for C030-R412M application boards (i.e. the

combined transmission line, connector, cable losses and radiating element gain) must not exceed

8.2 dBi in the 800 MHz band (i.e. LTE FDD-20 band), 3.21 dBi in the 900 MHz band (i.e. GSM 900 or LTE FDD-8 band), 9.09 dBi in the 1800 MHz band (i.e. GSM 1800 or LTE FDD-3 band) for mobile and fixed or mobile operating configurations.

UBX-19010121 - R01 Approvals Page 23 of 27

C030-R412M - User Guide

4.2 US Federal Communications Commission notice

United States Federal Communications Commission (FCC) IDs:

 XPYUBX18ZO01

⚠ Radiofrequency radiation exposure Information: this equipment complies with radiation exposure

⚠ The gain of the cellular system antenna(s) used for C030-R412M application boards (i.e. the

combined transmission line, connector, cable losses and radiating element gain) must not exceed

8.69 dBi in the 700 MHz band (i.e. the LTE FDD-12 band), 9.15 dBi in the 750 MHz band (i.e. the LTE FDD-13 band), 9.41 dBi in the 850 MHz band (i.e. the GSM 850 / LTE FDD-5 band), 12.01 dBi in the 1700 MHz band (i.e. the LTE FDD-4 band), 12.01 dBi in the 1900 MHz band (i.e. the GSM 1900 / LTE FDD-2 band) for mobile and fixed or mobile operating configurations.

4.3 Innovation, Science, Economic Development Canada notice

ISED Canada (formerly known as IC - Industry Canada) Certification Numbers:

 8595A-UBX18ZO01

⚠ Radiofrequency radiation exposure Information: this equipment complies with radiation exposure

⚠ The gain of the cellular system antenna used for the C030-R412M application boards (i.e. the

combined transmission line, connector, cable losses and radiating element gain) must not exceed

5.63 dBi in the 700 MHz band (i.e. the LTE FDD-12 band), 5.94 dBi in the 750 MHz band (i.e. the LTE FDD-13 band), 6.12 dBi in the 850 MHz band (i.e. the GSM 850 / LTE FDD-5 band), 8.29 dBi in the 1700 MHz band (i.e. the LTE FDD-4 band), 8.52 dBi in the 1900 MHz band (i.e. the GSM 1900 / LTE FDD-2 band) for mobile and fixed or mobile operating configurations.

UBX-19010121 - R01 Approvals Page 24 of 27

C030-R412M - User Guide

Abbreviation

Definition

Arm

Arm (Advanced RISC Machines) Holdings

Certification Mark for EHS compliance in the European Economic Area

CTS

Clear To Send

eUICC

embedded SIM

FCC

Federal Communications Commission

FDD

Frequency Division Duplex

GLONASS

Global Navigation Satellite System

GND

Ground

GNSS

Generic Navy Simulation System

GPIO

General Purpose Input Output

GSM

Global System for Mobile Communication

HSPA

High Speed Packet Access

I2C

Inter-Integrated Circuit

IoT

Internet of Things

ISED

Innovation Science Economic Development

LTE

Long Term Evolution

PCB

Printed Circuit Board

PWM

Pulse Width Modulation

RAM

Random Access Memory

RTS

Request To Send

SCL

Serial Clock

SDA

Serial Data

SIM

Subscriber Identification Module

SiP

System in Package

SPI

Serial Peripheral Interface

UART

Universal Asynchronous Receiver-Transmitter

USB

Universal Serial Bus

Appendix

A Glossary

Table 8: Explanation of the abbreviations and terms used

UBX-19010121 - R01 Appendix Page 25 of 27

C030-R412M - User Guide

Revision

Date

Name

Comments

R01

01-Jul-2019

euyg

Initial release

Revision history

UBX-19010121 - R01 Related documents Page 26 of 27

C030-R412M - User Guide

u-blox Offices

North, Central and South America

u-blox America, Inc.

Phone: +1 703 483 3180 E-mail: info_us@u-blox.com

Regional Office West Coast:

Phone: +1 408 573 3640 E-mail: info_us@u-blox.com

Technical Support:

Phone: +1 703 483 3185 E-mail: support@u-blox.com

Headquarters Europe, Middle East, Africa

u-blox AG

Phone: +41 44 722 74 44 E-mail: info@u-blox.com Support: support@u-blox.com

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u-blox Singapore Pte. Ltd.

Phone: +65 6734 3811 E-mail: info_ap@u-blox.com Support: support_ap@u-blox.com

Regional Office Australia:

Phone: +61 2 8448 2016 E-mail: info_anz@u-blox.com Support: support_ap@u-blox.com

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Phone: +86 10 68 133 545 E-mail: info_cn@u-blox.com Support: support_cn@u-blox.com

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Phone: +86 23 6815 1588 E-mail: info_cn@u-blox.com Support: support_cn@u-blox.com

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Phone: +81 3 5775 3850 E-mail: info_jp@u-blox.com Support: support_jp@u-blox.com

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Contact

For complete contact information, visit us at www.u-blox.com.

UBX-19010121 - R01 Contact Page 27 of 27

u-blox C030-R412M User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Document Information

Contents

1 Overview

Using this guide

Warnings and certifications

2 Hardware description

2.1 C030-R412M block diagram

2.2 Buttons, jumpers and switches

2.2.1 Utilization of cellular modem USB sniffer

2.3 LED indicators

2.4 Connectors

2.5 Configuration links / components

2.6 Test, break out points, and debug interfaces

2.7 Arduino™ UNO R3 compatible interface pin out

2.8 Power supply options and LiPo battery usage

3 Getting started

3.1 C030-R412M board setup

3.2 Development PC USB driver configuration

3.3 Getting started with Mbed

4 Approvals

4.1 European Conformance

4.2 US Federal Communications Commission notice

4.3 Innovation, Science, Economic Development Canada notice

Appendix

A Glossary

Related documents

Revision history

Contact