ST B-L462E-CELL1 Manuale utente

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User Manual

B-L462E-CELL1 Discovery kit for NB/M1 communication

Discovery Board

Introduction

The B-L462E-CELL1 Discovery pack (B-L462E-CELL1) is a turnkey development platform for

the IoT and cellular technology-based solutions. The pack contains a TYPE-1SE module and

a low-power Discovery mother board with antenna connector. The TYPE-1SE module

includes a STM32L462REY micro-controller and a TYPE-1SC module which is a worldwide

smallest LTE Cat NB1&M1 modem.

STMod+ and extended pins connectivity provides unlimited expansion capabilities with a large

choice of specialized add-on boards.

The B-L462E-CELL1 Discovery kit includes an ST-LINK debugger/programmer and comes

with the comprehensive STM32Cube software libraries together with packaged software

examples to seamlessly connect to cloud servers. In addition, a direct access to the Arm®

mbed Enabled™ on-line resources at Http://mbed.org is available.

Figure 1. B-L462E-CELL1 Discovery kit

Contents

Introduction................................................................................................................................ 1

1Features............................................................................................................................. 4

2Product marking................................................................................................................. 5

3System requirements......................................................................................................... 5

4Development toolchains..................................................................................................... 5

5Demonstration software..................................................................................................... 5

6Ordering information .......................................................................................................... 6

7Hardware layout and configuration.................................................................................... 7

7.1 B-L462E-CELL1 Discovery kit for IoT node layout....................................................... 8

7.2 B-L462E-CELL1 Discovery kit mechanical drawing................................................... 10

7.3 Embedded ST-LINK/V2-1........................................................................................... 11

7.3.1 Drivers.............................................................................................................. 11

7.3.2 ST-LINK/V2-1 firmware upgrade...................................................................... 11

7.4 Power supply.............................................................................................................. 12

7.5 Clock sources............................................................................................................. 14

7.6 Reset sources ............................................................................................................ 14

7.7 USB DEVICE FS........................................................................................................ 14

7.8 Quad-SPI NOR Flash memory................................................................................... 14

7.9 Virtual COM port......................................................................................................... 14

7.10 ST sensors ............................................................................................................... 14

7.10.1 Ultra-low-power 3D accelerometer and 3D magnetometer (LSM303AGR)... 14

7.10.2 260-1260 hPa absolute digital output barometer (LPS22HH) ....................... 15

7.10.3 Capacitive digital sensor for relative humidity and temperature (HTS221) ... 16

7.11 EEPROM (M24128-DFMN6TP)............................................................................... 16

7.12 OLED screen............................................................................................................ 16

7.14 Buttons and LEDs .................................................................................................... 17

7.15 I2C addresses of modules used on MB1508 ........................................................... 18

8 Connectors ........................................................................................................................... 19

8.1 SMA connector for antenna ........................................................................................ 19

8.2 SIM card slot............................................................................................................... 19

8.3 Tag connector ............................................................................................................ 20

8.4 ST-LINK select jumper............................................................................................... 21

8.5 ST-LINK debug connector.......................................................................................... 21

8.6 reserved U.FL connector............................................................................................ 22

8.7 INT pins of sensors .................................................................................................... 22

8.8 USB connector for User Device ................................................................................. 22

8.9 USB connector for ST-LINK....................................................................................... 23

8.10 USB connector for UART......................................................................................... 23

8.11 USB connector for power......................................................................................... 24

8.12 Extension pin header for MCU................................................................................. 25

8.13 Extension pin header for Modem ............................................................................. 26

8.14 3.5mm stereo headphone connector ....................................................................... 27

8.15 Socket 10X2 STMod+ .............................................................................................. 28

8.16 Jumper JP1 for IDD measurements......................................................................... 28

Appendix A B-L462E-CELL1 Discovery kit I/O assignment................................................. 29

1 Features

•TYPE-1SE module including TYPE-1SC and STM32L462REY

•STM32L462REY micro-controller featuring 512 KB of Flash memory and 160 KB of RAM

in WLCSP64 package

•TYPE-1SC modem featuring LTE Cat M1/NB1 in LGA pack

•0.96-inch 128 x 64 OLED screen with SPI interface

•64Mbytes Quad-SPI(Micron) Flash memory

•ST 16Kbyte IIC EEPROM (M24128-DFMN6TP)

•Ultra-low-power 3D accelerometer and 3D magnetometer (LSM303AGR)

•Capacitive digital sensor for relative humidity and temperature (HTS221)

•260-1260 hPa absolute digital output barometer (LPS22HH)

•3 user LEDs connected to timers

•2 push-buttons (User and reset)

•Board expansion connectors:

- SMA antenna connector

- Two 50 Pin and 2.54-mm pin pitch headers

- SIM card slot

- 3.5mm CTIA stereo headset jack including analog microphone input

- Micro-B USB connectors for power, USARTs, USB device and ST-LINK V2-1

- STMod+

- TAG10

•Flexible power-supply options: ST-LINK USB, User USB, UART USB, Power USB or 3 x

AAA battery

•On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability:

mass storage, virtual COM port and debug port

•Comprehensive free software including a variety of examples, as part of the STM32Cube

package, as well as a cloud connector software expansion, enabling direct access to

cloud servers

•Support of wide choice of Integrated Development Environments (IDEs) including IAR™,

Keil®, GCC-based IDEs, Arm® mbed Enabled™

•Arm® mbed Enabled™ (see Http://mbed.org)

2 Product marking

Evaluation tools marked as "ES" or "E" are not yet qualified and therefore they are not ready

to be used as reference design or in production. Any consequences deriving from such usage

will not be at ST charge. In no event, ST will be liable for any customer usage of these

engineering sample tools as reference design or in production.

"E" or "ES" marking examples of location:

•On the targeted STM32 that is soldered on the board (for illustration of STM32 marking,

refer to the section “Package characteristics” of the STM32 datasheet at www.st.com).

•Next to the evaluation tool ordering part number, that is stuck or silk-screen printed on the

board.

3 System requirements

•Windows® OS (7, 8 and 10), Linux® or MacOS™

•USB Type-A to Micro-B cable

4 Development toolchains

•Keil® MDK-Arm(a)

•IAR™ EWARM(a)

•GCC-based IDEs including free SW4STM32 from AC6

•Arm® mbed Enabled™ online

5 Demonstration software

The demonstration software, included in the STM32Cube package, is preloaded in the

STM32 Flash memory for easy demonstration of the device peripherals in standalone mode.

The latest versions of the demonstration source code and associated documentation can be

downloaded from the webpage.

6 Ordering information

To order the B-L462E-CELL1 Discovery kit for IoT node, refer to Table 1.

Table 1. Ordering information

Order code

Target STM32

B-L462-CELL1

STM32L462REY

7 Hardware layout and configuration

The B-L462E-CELL1 Discovery kit is designed around the TYPE-1SE module. The hardware

block diagram (see Figure 2) illustrates the connection between TYPE-1SE module and

peripherals (OLED screen, Sensors, USB FS connector, USARTs, EEPROM, Micro-SIM card

and embedded ST-LINK V2-1) and Figure 3 and Figure 4 will help you locate these features

on the actual evaluation board.

Figure 2. Hardware block diagram

1SE ModuleMCU Part Modem

Part

SWD

UART

QSPI

USB

SPI

I2C

GPIO

TIMER

SIM

UART1

UART2

TAG10

STLINK V2-1

QSPI

Flash

OLED

Sensors

Tamper

Button

LEDs

Level shifter

SMA

Connector

SIM card

slot

USB-UART

Converter MicroUSB

I2C

EEPROM

MicroUSB

Extension

connector CN12

Stmod+

Connector

GPIO Extension

connector CN13

7.1 B-L462E-CELL1 Discovery kit for IoT node layout

Figure 3. B-L462E-CELL1 Discovery kit (top view)

SMA connecor(CN1)

STMod+(P1)

OLED screen(U1)

Reset button(B1)

User button(B2)

Sensor interrupt

pins(CN7)

User USB(CN8)

USB UART(CN10)

USB ST-LINK(CN9)

USB PWR(CN11)

TAG10(CN3)

LSM303AGR(U7)

HTS221(U10)

LPS22HH(U6)

TYPE-1SE(U5)

ST-LINK MCU(U12)

Flash(U8)

SIM card slot(CN2)

User LED(LD1,LD2,LD3) ST-LINK COM (LD6)

Current measure

jumper(JP1)

1.8V LDO(U19)

Figure 4. B-L462E-CELL1 Discovery kit (bottom view)

EEPROM(U23)

Pins to

MCU(CN12)

Pins to

Modem(CN13)

3.3V LDO(U25)

3.6V LDO(U30)

Level shifter

(U27,U28,U29)

Battery case(BT1)

7.2 B-L462E-CELL1 Discovery kit mechanical drawing

Figure 5. B-L462E-CELL1 Discovery kit mechanical drawing

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