ST STM32 Nucleo-64 User Manual

UM2324

User manual

STM32 Nucleo-64 boards with STM32G07xRB MCUs

Introduction

The STM32 Nucleo-64 boards (NUCLEO-G070RB and NUCLEO-G071RB) provide an
affordable and flexible way for users to try out new concepts and build prototypes with the
STM32 microcontroller, which provide various combinations of performance, power
consumption and features.

Arduino™ Uno V3 connectivity and ST morpho headers provide easy means of expanding
the functionality of the Nucleo open development platform with a wide choice of specialized
shields.

The STM32 Nucleo-64 boards do not require any separate probe, as it integrates the
ST-LINK/V2-1 debugger/programmer. The STM32 Nucleo-64 boards come with the
comprehensive free STM32 software libraries and examples that are available with the
STM32Cube package.

Figure 1. NUCLEO-G070RB/NUCLEO-G071RB top view

Picture is not contractual.

October 2018 UM2324 Rev 2 1/44

www.st.com

1

Contents UM2324

Contents

1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Product marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.3 Development toolchains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6 Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

6.1 NUCLEO-G070RB or NUCLEO-G071RB board mechanical drawing . . . .11

6.2 Default board configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6.3 Cut able PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6.4 Embedded ST-LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6.4.1 Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.4.2 ST-LINK/V2-1 firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.4.3 Using the ST-LINK/V2-1 to program/debug the STM32 on board . . . . . 13

6.4.4 Using ST-LINK/V2-1 to program/debug an external STM32 application 14

6.5 Power supply and power selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.5.1 External power supply input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.5.2 External power supply output: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.6 Programming/debugging when the power supply is not from ST-LINK . . 20

6.7 OSC clock sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.7.1 LSE: OSC 32 kHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.7.2 HSE: OSC 8 MHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.8 Reset sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.9 UART2 communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.10 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.11 Push buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2/44 UM2324 Rev 2

UM2324 Contents

6.12 IDD measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.13 Jumper configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.14 Configuration of the solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

7 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

7.1 USB Micro-B connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

7.2 Arduino Uno V3 connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.3 ST morpho connectors CN7 and CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Appendix A NUCLEO-G070RB or NUCLEO-G071RB I/O assignment . . . . . . . . 33

Appendix B Electrical schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

UM2324 Rev 2 3/44

3

List of tables UM2324

List of tables

Table 1. Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 2. Codification explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 3. ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 4. Default jump settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 5. ST-LINK jumper configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 6. Debug connector CN11 (SWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 7. Power supply capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 8. UART2 pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 9. Jumper configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 10. Solder bridge configurations and settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Table 11. USB micro-B pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 12. Arduino connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table 13. NUCLEO-G070RB or NUCLEO-G071RB I/O assignment . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 14. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

4/44 UM2324 Rev 2

UM2324 List of figures

List of figures

Figure 1. NUCLEO-G070RB/NUCLEO-G071RB top view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. Hardware Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 3. Top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 4. Bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 5. NUCLEO-G070RB or NUCLEO-G071RB board mechanical drawing . . . . . . . . . . . . . . . . 11

Figure 6. USB composite device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 7. NUCLEO-G070RB or NUCLEO-G071RB connections image . . . . . . . . . . . . . . . . . . . . . . 14

Figure 8. ST-Link connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 9. STLK power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 10. JP2 [3-4]: STLK power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 11. JP2 [5-6]: STLK power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 12. JP2 [7-8]: CHG power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 13. USB micro-B connector CN2 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 14. Arduino connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 15. NUCLEO-G070RB Arduino connector pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 16. NUCLEO-G071RB Arduino connector pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 17. ST morpho connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 18. NUCLEO-G070RB ST morpho connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 19. NUCLEO-G071RB ST morpho connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 20. Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 21. STM32_microcontroller_IOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 22. STM32_microcontroller_PWR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Figure 23. Arduino extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 24. Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 25. ST_LINK_V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 26. HW Mechanical Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

UM2324 Rev 2 5/44

5

Features UM2324

1 Features

The STM32 Nucleo board offers the following features:

• STM32 microcontroller in LQFP64 package

• 1 user LED shared with Arduino™

• 1 user and 1 reset push-buttons

• 32.768 kHz LSE crystal oscillator

• Board expansion connectors:

–Arduino™ Uno V3

– ST morpho extension pin headers for full access to all STM32 I/Os

• Flexible power-supply options:

– ST-LINK USB VBUS or external sources (3.3 V, 5 V, 7 V to 12 V)

• On-board ST-LINK/V2-1 debugger and programmer with USB reenumeration
capability.

• Three different interfaces supported on USB:

– mass storage

– virtual COM port

– debug port

• Comprehensive free software libraries and examples available with the STM32Cube
MCU Package

• Support of a wide choice of Integrated Development Environments (IDEs) including

™

IAR

, Keil®, GCC-based IDEs

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.

This board features a specific STM32 device version which allows the operation of any
stack or library. This STM32 device shows a “U” marking option at the end of the standard
part number and is not available for sales.

6/44 UM2324 Rev 2

UM2324 Ordering information

3 Ordering information

To order the STM32 Nucleo-64 board corresponding to the targeted STM32, refer to

Tabl e 1.

Order code Target STM32

NUCLEO-G070RB STM32G070RBT6

NUCLEO-G071RB STM32G071RBT6

The meaning of the NUCLEO-G071RB codification is explained in Tab l e 2.

NUCLEO-G071RB Description

GXXX STM32 Product line STM32G071

R STM32 package pin count 64 pins

B STM32 Flash memory size 128 Kbytes

Table 1. Ordering information

Table 2. Codification explanation

Example:

NUCLEO-G071RB

This order code is mentioned on a sticker placed on top side of the board.

4 Conventions

Tabl e 3 provides the conventions used for the ON and OFF settings in the present

document.

Convention Definition

Jumper JPx ON Jumper fitted

Jumper JPx OFF Jumper not fitted

Solder bridge SBx ON SBx connections closed by solder or 0 ohm resistor

Solder bridge SBx OFF SBx connections left open

In this document the references for all information that is common to all sale types, are
‘STM32 Nucleo-64 board’ and ‘STM32 Nucleo-64 boards’.

Table 3. ON/OFF conventions

UM2324 Rev 2 7/44

43

Quick start UM2324

5 Quick start

This section describes how to start a development quickly using the STM32 NUCLEO­G070RB or NUCLEO-G071RB board.

Before installing and using the product, accept the Evaluation Product License Agreement
from the www.st.com/epla web page.

For more information on the STM32 Nucleo board and to access the demonstration
software, visit www.st.com/stm32nucleo website.

5.1 Getting started

The STM32 NUCLEO-G070RB or NUCLEO-G071RB board is a low-cost and easy-to-use
development kit to quickly evaluate and start a development with an STM32 microcontroller
in QFP64 package. To start using this board, follow the steps below:

1. Check the jumper position on the board, CN4 (STLK) on [1-2], [3-4], JP2 (PWR) on
[1-2], JP3 (IDD) on.

2. For a correct identification of all device interfaces from the host PC, install the Nucleo
USB driver available on the www.st.com/stm32nucleo web page, prior to connecting
the board.

3. To power the board, connect the STM32 NUCLEO-G070RB or NUCLEO-G071RB to a
PC with a USB cable 'type-A to micro-B' through the USB connector CN2. As a result
green LED LD3 (PWR) lights up, LD1 (COM) blinks.

4. Press user button B1 (blue).

5. Observe that the blinking frequency of the three green LED LD4 changes, by clicking
on the button B1.

6. The demonstration software and several software examples that allow the user to use
the Nucleo features are available at the www.st.com/stm32nucleo.

5.2 System requirements

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

• USB Type-A to Micro-B cable

5.3 Development toolchains

• Keil®: MDK-ARM

• IAR™: EWARM

• GCC-based IDEs

a. macOS® is a trademark of Apple Inc., registered in the U.S. and other countries.

b. On Windows only

8/44 UM2324 Rev 2

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UM2324 Hardware layout and configuration

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6 Hardware layout and configuration

The STM32 NUCLEO-G070RB and NUCLEO-G071RB boards are designed around the
STM32 microcontrollers in a 64-pin LQFP package.

Figure 2 illustrates the connections between the STM32 and its peripherals (STLINK/V2-1,

pushbutton, LED, and morpho connectors).

Figure 3 and Figure 4 help the user to locate these features on the NUCLEO-G070RB or

NUCLEO-G071RB.

Figure 2. Hardware Block Diagram

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UM2324 Rev 2 9/44

43

Hardware layout and configuration UM2324

Figure 3. Top layout

Figure 4. Bottom layout

10/44 UM2324 Rev 2

UM2324 Hardware layout and configuration

6.1 NUCLEO-G070RB or NUCLEO-G071RB board mechanical drawing

Figure 5. NUCLEO-G070RB or NUCLEO-G071RB board mechanical drawing

6.2 Default board configuration

Jumper Definition Default position Comment

CN4 SWD interface ON [1-2] ON[3-4] On-board ST-LINK/V2-1 debugger

JP2 5 V Power selection ON [1-2] 5 V from ST-LINK

JP1 STLK Reset OFF No STLK Reset

JP3 IDD measurement ON STM32 VDD current measurement

Table 4. Default jump settings

6.3 Cut able PCB

The NUCLEO-G070RB or NUCLEO-G071RB board is divided into two parts: ST-Link part
and target MCU part. ST-Link part PCB is cuttable to reduce board size. In this case the rest
target MCU part is only powered by VIN, E5V & 3.3V on morpho connectors CN7 or VIN &

3.3V on Arduino connector CN6. And it is still possible to use ST-Link part to program the
main MCU using wires between CN7 and SWD signals available on morpho connectors.

UM2324 Rev 2 11/44

43

Hardware layout and configuration UM2324

6.4 Embedded ST-LINK/V2-1

The ST-LINK/V2-1 programming and debugging tool is integrated on the NUCLEO.
Compared to ST-LINK/V2 the changes are listed below.

The new features supported on ST-LINK/V2-1:

• USB software re-enumeration

• Virtual COM port interface on USB

• Mass storage interface on USB

• Registers R/W interface on USB (Not available on NUCLEO)

• USB power management request for more than 100 mA power on USB

The features no more supported on ST-LINK/V2-1:

• SWIM interface

• Minimum application voltage supported by Nucleo limited to 3V

• Standalone version doesn't exist (only Nucleo and future discovery support V2-1)

For all general information concerning debugging and programming features common
between V2 and V2-1 please refer to ST-LINK/V2 User Manual UM1075.

The embedded ST-LINK/V2-1 is usable in two different ways according to the jumper states
(refer to

• Program/debug the STM32 on board,

• Program/debug an STM32 in an external application board using a cable connected to

Tabl e 5):

SWD connector.

Table 5. ST-LINK jumper configuration

CN Definition Default position Comment

CN4 T_SWCLK / T_SWDIO ON [1-2] ON[3-4]

CN4 T_SWCLK / T_SWDIO OFF [1-2] OFF[3-4]

ST-LINK/V2-1 functions enabled for on­board programming (default)

ST-LINK/V2-1 functions enabled from
external connector (SWD supported)

12/44 UM2324 Rev 2

UM2324 Hardware layout and configuration

6.4.1 Drivers

Before connecting the STM32 NUCLEO-G070RB or NUCLEO-G071RB board to a
Windows
available at the www.st.com website.

In case the STM32 Nucleo-64-P board is connected to the PC before installing the driver,
the PC device manager may report some Nucleo interfaces as ‘Unknown’. To recover from
this situation, after installing the dedicated driver, the association of ‘Unknown’ USB devices
found on the STM32 Nucleo-64-P board to this dedicated driver, must be updated in the
device manager manually.

Note: It is recommended to proceed by using USB Composite Device, as shown in Figure 6.

®

PC (7, 8 and 10) through USB, install the driver for the ST-LINK/V2-1 that is

Figure 6. USB composite device

6.4.2 ST-LINK/V2-1 firmware upgrade

The ST-LINK/V2-1 embeds a firmware upgrade mechanism for in-situ upgrade through the
USB port. As the firmware may evolve during the lifetime of the ST-LINK/V2-1 product (for
example new functionalities, bug fixes, support for new microcontroller families), it is
recommended to keep the ST-LINK/V2-1 firmware up to date before starting to use an
STM32 NUCLEO-G070RB or NUCLEO-G071RB board. The latest version of this firmware
is available at the www.st.com website.

6.4.3 Using the ST-LINK/V2-1 to program/debug the STM32 on board

To program the STM32 on board, simply plug in the two jumpers on CN4, as shown in

Figure 7 in pink, but do not use the CN11 connector as that could disturb communication

with the STM32 Microcontroller of the NUCLEO.

UM2324 Rev 2 13/44

43

Hardware layout and configuration UM2324

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Figure 7. NUCLEO-G070RB or NUCLEO-G071RB connections image

6.4.4 Using ST-LINK/V2-1 to program/debug an external STM32 application

It is very easy to use the ST-LINK/V2-1 to program the STM32 on an external application.
Simply remove the 2 jumpers from CN4 as shown in
to the CN11 debug connector according to Tab le 6.

Note: SB19 must be OFF if you use CN11 pin 5 in your external application.

Pin CN11 Designation

1 VDD_TARGET VDD from application

2 SWCLK SWD clock

3 GND Ground

4 SWDIO SWD data input/output

5 NRST RESET of target MCU

6 SWO Reserved

Table 6. Debug connector CN11 (SWD)

Figure 8, and connect your application

14/44 UM2324 Rev 2

UM2324 Hardware layout and configuration

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Figure 8. ST-Link connections image

6.5 Power supply and power selection

6.5.1 External power supply input

The STM32 NUCLEO-G070RB or NUCLEO-G071RB board is designed to be powered by
several DC power supply. It is possible to supply the STM32 NUCLEO-G070RB or
NUCLEO-G071RB board with any of the following sources:

• 5V_USB_STLK from ST-LINK USB connector

• VIN (7 V - 12 V) from Arduino connector or ST morpho connector

• E5V from ST morpho connector

• 5V_USB_CHG from ST-LINK USB

• 3.3 V on Arduino connector or ST morpho connector

Note: If an external 5 V DC power source is used, the Nucleo board must be powered by a power

supply unit or by an auxiliary equipment complying with the standard EN-60950-1:
2006+A11/2009 and must be safety extra low voltage (SELV) with limited power capability.

The power supply capabilities are showed in Table 7.

UM2324 Rev 2 15/44

43

Hardware layout and configuration UM2324

Input power

5V_USB_STLK CN2 PIN1

VIN

E5V CN7 pin 6

5V_USB_CHG CN2 pin 1

3V3

Connector

pins

CN6 pin 8
CN7 pin 24

CN6 pin 4
CN7 pin 16
JP3 pin 1

Table 7. Power supply capabilities

Volta ge

range

4.75 V to

5.25 V

7 V to 12 V 800 mA

4.75 V to

5.25 V

4.75 V to

5.25 V

3 V to 3.6 V -

Max

current

500 mA

500 mA

500 mA

Max current depends on the USB
enumeration:
– 100 mA without enumeration
– 500 mA with enumeration OK

From 7 V to 12 V only and input current
capability is linked to input voltage:
– 800 mA input current when VIN=7 V
– 450 mA input current when
7 V<VIN<9 V
– 300 mA input current when
10 V>VIN>9 V
– less than 300 mA input current when
VIN>10 V

Max current depends on the USB wall
charger used to powered the Nucleo
board

Used when ST-LINK part of PCB not
used or remove SB1 and SB19

Limitation

5V_ST_LINK is a DC power with limitation from ST-LINK USB connector (USB type Micro-B
connector of ST-LINK/V2-1). In this case JP2 jumper must be on pins 1 and 2 to select
STLK power source on silkscreen of JP2. This is the default setting. If the USB enumeration
succeeds, the STLK power is enabled, by asserting the PWR_ENn signal (from
STM32F103CBT6). This pin is connected to a power switch STMPS2141STR, which
Powers the board. This power switch also features a current limitation to protect the PC in
case of a short-circuit on board (more than 750

mA).

The STM32 NUCLEO-G070RB or NUCLEO-G071RB board and its shield is powerable from
the ST-LINK USB connector CN2, but only ST-LINK circuit is powered before USB
enumeration, because the host PC only provides 100

mA to the board at that time. During
the USB enumeration, the STM32 NUCLEO-G070RB or NUCLEO-G071RB board requires
500

mA of current from the host PC. If the host is able to provide the required power, the
enumeration ends by a ‘SetConfiguration’ command and then, the power transistor
STMPS2141STR is switched ON, the green LED LD3 is turned ON, thus the STM32
NUCLEO-G070RB or NUCLEO-G071RB board and its shield request no more than 500

mA
current. If the host is not able to provide the required current, the enumeration fails.
Therefore the power switch STMPS2141STR stays OFF and the MCU part including the
extension board is not powered. As a consequence the green LED LD3 stays turned OFF. In
this case it is mandatory to use an external power supply.

16/44 UM2324 Rev 2

UM2324 Hardware layout and configuration

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USB power: STLK configuration: jumper JP2 [1-2] must be connected as showed in

Figure 9.

Figure 9. STLK power source

VIN is the 7 V to 12 V DC power from Arduino CN6 pin 8 named VIN on Arduino connector
silkscreen or from ST morpho connector CN7 pin 24. In this case JP2 jumper must be on
pins 3 and 4 to select VIN power source on silkscreen of JP2. In that case the DC power
comes from the power supply through the Arduino Uno V3 battery shield (compatible with
Adafruit PowerBoost 500 shield).

UM2324 Rev 2 17/44

43

Hardware layout and configuration UM2324

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VIN configuration: jumper JP2 [3-4] must be connected as showed in Figure 10.

Figure 10. JP2 [3-4]: STLK power source

E5V is the DC power coming from external (5V DC power from ST morpho connector CN7
pin 6). In this case JP2 jumper must be on pins 5 and 6 to select E5V power source on
silkscreen of JP2.

18/44 UM2324 Rev 2

UM2324 Hardware layout and configuration

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E5V configuration: Jumper JP2 [5-6] must be connected as showed in Figure 11.

Figure 11. JP2 [5-6]: STLK power source

5V_USB_CHARGER is the DC power charger connected to USB ST-LINK (CN2). To select
the CHG power source on silkscreen of JP2, the jumper of JP2 must be on pins 7 and 8. In
this case, if the STM32 NUCLEO-G070RB or NUCLEO-G071RB board is powered by an
external USB charger the debug is not available. If the PC is connected instead of the
charger, the limitation is no more effective, in this case the PC could be damaged.

UM2324 Rev 2 19/44

43

Hardware layout and configuration UM2324

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CHG configuration: jumper JP2 [7-8] must be connected as showed in Figure 12.

Figure 12. JP2 [7-8]: CHG power source

6.5.2 External power supply output:

• 5V: The 5V (CN6 pin 5 or CN7 pin 18) is usable as output power supply for an Arduino

shield or an extension board, when the NUCLEO-G070RB or NUCLEO-G071RB board
is powered by USB, VIN or E5V. In this case the maximum current allowed is showed in

Tabl e 7.

• 3.3V: on CN6 pin 4 or CN7 pin 16 is usable as power supply output. The current is

limited by the maximum current capability of the regulator U6 (LDL112PV33R from
STMicroelectronics). In this condition the maximum consumption of the STM32
NUCLEO-G070RB or NUCLEO-G071RB board and the connected shield must be less
than 500

mA.

6.6 Programming/debugging when the power supply is not from ST-LINK

VIN or E5V is usable as an external power supply in case the current consumption of the
STM32 NUCLEO-G070RB or NUCLEO-G071RB board and its extension boards exceed
the allowed current on the USB. In such condition it is still possible to use the USB for
communication, programming or debugging only. In this case it is mandatory to power the
board first using VIN or E5V then to connect the USB cable to the PC. Proceeding this way

20/44 UM2324 Rev 2

UM2324 Hardware layout and configuration

the enumeration succeeds, thanks to the external power source. The following power
sequence procedure must be respected:

1. Connect jumper JP2 between pins 3 and 4 for VIN or pins 5 and 6 for E5V

2. Connect the external power source to VIN or E5V

3. Power ON the external power supply 7 V < VIN < 12 V to VIN, or 5 V for E5V

4. Check that the green LED LD3 is turned ON

5. Connect the PC to the USB connector CN2

If this sequence is not respected, the board may be powered by VBUS first from the ST­LINK, with the following risks:

• If more than 500 mA current is needed by the board, the PC may be damaged or the

current supplied may be limited by the PC. As a consequence the board is not powered
correctly.

• 500 mA is requested at the enumeration (since SB15 must be OFF): this request is

rejectable and the enumeration does not succeed if the PC does not provide such
current, consequently the board is not power supplied (LED LD3 remains OFF).

6.7 OSC clock sources

Three clock sources are listed below:

• LSE which is the 32.768 kHz crystal for the STM32 embedded RTC

• MCO which is the 8 MHz clock from the ST-LINK MCU for the STM32 microcontroller

• HSE which is the 8 MHz oscillator for the STM32 microcontroller. This clock is not

implemented on the STM32 NUCLEO-G070RB or NUCLEO-G071RB board

6.7.1 LSE: OSC 32 kHz clock supply

There are three ways to configure the pins corresponding to the low-speed clock (LSE):

1. LSE on-board X2 crystal (Default configuration). Refer to crystal design guide for

STM8S, STM8A and STM32 microcontrollers Application note (AN2867) for crystal
design guide for STM32 microcontrollers. It is recommended to use NX3215SA
manufactured by NDK (32.768

2. Oscillator from external to PC14 input: from external oscillator through pin 25 of the

CN7 connector. The following configuration is needed:

–SB23 ON

– R31 and R32 removed

3. LSE not used: PC14 and PC15 are used as GPIOs instead as low-speed clock.The

following configuration is needed:

– SB23 and SB24 ON

– R31 and R32 removed

kHz, 6 pF, 20 ppm).

UM2324 Rev 2 21/44

43

Hardware layout and configuration UM2324

6.7.2 HSE: OSC 8 MHz clock supply

There are four ways to configure the pins corresponding to the external high-speed clock
(HSE):

• HSE not used (default): PF0 and PF1 are used as GPIOs instead of as clock. The

configuration must be:

– SB25 and SB27 ON

– SB17 (MCO) OFF

– R33 and R34 OFF

• MCO from ST-LINK: MCO output of ST-LINK is used as input clock. This frequency

cannot be changed, it is fixed at 8
microcontroller. The configuration must be:

–SB17 ON

– SB25 and SB27 OFF

– R33 and R34 OFF

• HSE on-board oscillator from X3 crystal (not provided): for typical frequencies and its

capacitors and resistors, refer to the STM32 microcontroller datasheet and to the
Oscillator design guide for STM8S, STM8A and STM32 microcontrollers Application
note (AN2867) for the oscillator design guide. The X3 crystal has the following
characteristics: 8
EXS00A-CG04874 manufactured by NIHON DEMPA KOGYO CO., LTD. The
configuration must be:

– SB25 and SB27 OFF

– R33 and R34 soldered

– C24 and C25 soldered with 10 pF capacitors

–SB17 OFF

• Oscillator from external PF0: from an external oscillator through the pin 29 of the CN7

connector. The configuration must be:

–SB25 ON

–SB17 OFF

– R33 and R34 removed

MHz, 8 pF, 20 ppm. It is recommended to use NX3225GD-8.000M-

MHz and connected to the PF0-OSC_IN of STM32

6.8 Reset sources

The reset signal of the STM32 NUCLEO-G070RB or NUCLEO-G071RB board is active low
and the reset sources include:

• Reset button B2

• Embedded ST-LINK/V2-1

• Arduino Uno V3 connector from CN6 pin 3

• ST morpho connector CN7 pin 14

22/44 UM2324 Rev 2

UM2324 Hardware layout and configuration

6.9 UART2 communication

The UART2 interface of the STM32 is connectible to:

• The ST-LINK/V2-1 MCU

• The ST morpho connector (CN10 pin 6 and pin 34)

Pin

name

PA2 UART2 TX SB16 ON SB16 OFF

PA3 UART2 RX SB18 ON SB18 OFF

Function

Table 8. UART2 pins

Virtual COM port (default

configuration)

ST morpho connection

6.10 LEDs

Four LEDs are available on the STM32 NUCLEO-G070RB or NUCLEO-G071RB board.
The four LEDs are located on the top side of the board.

1. LD1 COM: LD1 is a bi-color LED. LD1 default status is red. LD1 turns to green to

indicate that communication is in progress between the PC and the ST-LINK/V2-1 as
follow:

– Slow blinking red and off: at power-on before USB initialization

– Fast blinking red and off: after the first correct communication between the PC and

the STLINK/V2-1 (enumeration)

– Red LED on: when initialization between the PC and the ST-LINK/V2-1 is

successfully ended

– Green LED on: after successful STM32 communication initialization

– Blinking red and green: during communication with STM32

– Green on: communication well ended

– Orange on: communication ended with failure

2. LD2: 5V_USB_CHG: this red LED switch ON when overcurrent is detected on USB

VBUS. The LED gives the information that more than 500
In this case it is recommended to supply the board with E5V, VIN or in
USB_CHARGER mode.

3. LD3: 5V_PWR: this green LED is ON when the STM32 NUCLEO-G070RB or

NUCLEO-G071RB board is powered by a 5

V source.

4. LD4 USER: this green LED is a user LED connected to Arduino signal D13

corresponding to STM32 I/O PA5. To light the LED a high-logic state ‘1’ has to be
written in the corresponding GPIO. A transistor is used to drive the LED when the I/O
voltage is 1.8

V. LD4 consumption does not impact the VDD STM32 power

measurement, since LD4 is isolated from it.

mA is requested on VBUS.

UM2324 Rev 2 23/44

43

Hardware layout and configuration UM2324

6.11 Push buttons

• B1 USER: User and Wake-Up button connected to the I/O PC13 (Pin 3) of the STM32

Microcontroller.

• B2 RESET: Pushbutton connected to NRST is used to RESET the STM32

Microcontroller.

The blue and black plastic hats placed on these pushbuttons are removable if necessary
when a shield or an application board is plugged on top of Nucleo. This avoids pressure on
the buttons and consequently a possible permanent Target MCU RESET.

6.12 IDD measurement

Jumper JP3, labeled IDD, allows the consumption of STM32 Microcontroller to be measured
by removing the jumper and connecting an ammeter.

• Jumper on: STM32 Microcontroller is powered (default).

• Jumper off: an ammeter must be connected to measure STM32 microcontroller

current. If there is no ammeter, STM32 microcontroller is not powered.

6.13 Jumper configuration

The default jumper positions are showed in Tabl e 4: Default jumper settings. Ta bl e 9
describes the other available jumper settings.

Jumper /

CN

CN4

JP4/JP5 GND ON GND probe

JP2

JP1 STLK Reset

JP3 I

1. Default jumper state is shown in bold.

Function State

T_SWCLK
T_SWDIO

5 V Power
selection

measurement

DD

Table 9. Jumper configuration

(1)

ON [1-2] ON [3-4]

OFF [1-2] OFF [3-4]

ON [1-2] 5 V from ST-LINK

ON [3-4] 5 V from VIN 7 V to 12 V

ON [5-6] 5 V from E5V

ON [7-8] 5 V from USB_CHG

OFF No 5 V power

ON [1-2] STLK Reset

OFF No STLK Reset

ON [1-2] VDD = 3.3 V

OFF

ST-LINK/V2-1 enable for on-board
MCU debugger

ST-LINK/V2-1 functions enabled for
external CN2 connector

To connect external source (ULPBench
probe as an example)

Comment

24/44 UM2324 Rev 2

UM2324 Hardware layout and configuration

6.14 Configuration of the solder bridges

Tabl e 10 shows the solder bridge configurations and settings.

Definition Bridge State

Table 10. Solder bridge configurations and settings

(1)

Comment

SWD interface
(default))

SWD interface
(reserved)

UART2 interface
(reserved)

UART2 interface
(reserved)

SB7/SB9
/SB11/SB13

SB6/SB8
/SB10/SB12

SB16/SB18 ON

SB16/SB18 OFF UART2 is used as GPIOs

Allowed current
through CN2

SB15

Setting

MCO SB17

3.3 V LDO
output

SB1

Power (reserved) SB29/SB30

ON Reserved, do not modify.

OFF Reserved, do not modify.

UART2 connect STLK and MCU on
board

ON

OFF

ON

Allowed current through CN2: 100 mA
max

Allowed current through CN2: 300 mA
max

MCO from STLK provide 8 MHz CLK to
MCU

OFF MCO from STLK floating

ON U6 LDO output provides 3.3 V

OFF U6 LDO output does not provide 3.3 V

ON

PD8 is used as VDD,PD9 is used as
GND

OFF PD8 and PD9 is used as GPIOs

VBAT SB26

AVDD SB28

AGND SB31

HSE CLK
selection

LSE CLK
selection

SB25/SB27

SB23/SB24

ADC/IIC SB2/SB3/SB4/SB5

ON VDD provides power to VBAT

OFF VDD does not provide power to VBAT

ON VDD provides power to AVDD

OFF VDD does not provide power to AVDD

ON AGND connects to GND

OFF AGND does not connect to GND

ON(R33/R34 OFF) PF0/PF1 works as GPIOs

OFF PF0/PF1 works as HSE pins

ON(R31/R32 OFF) PC14/PC15 works as GPIOs

OFF PC14/PC15 works as LSE pins

SB3/SB4 ON,
SB2/SB5 OFF

SB3/SB4 OFF,
SB2/SB5 ON

CN8 PIN5/6 works as ADC

CN8 PIN5/6 works as IIC

UM2324 Rev 2 25/44

43

Hardware layout and configuration UM2324

Table 10. Solder bridge configurations and settings (continued)

Definition Bridge State

(1)

Comment

User LED SB22

AVDD SB21

1. Default jumper state is shown in bold.

ON PA5 controls LD4

OFF LD4 is isolated

ON AVDD connects to CN5 PIN8

OFF AVDD disconnects to CN5 PIN8

26/44 UM2324 Rev 2

UM2324 Connectors

06Y9

7 Connectors

Seven connectors are implemented on the STM32 Nucleo-64-P board:

• CN2: ST-LINK USB connector

• CN5, CN6, CN8 and CN9: Arduino Uno V3 connectors

• CN7 and CN10: ST morpho connectors

7.1 USB Micro-B connector CN2

The USB connector CN2 is used to connect the embedded ST-LINK/V2-1 to the PC for
programming and debugging the STM32 NUCLEO-G070RB or NUCLEO-G071RB board
microcontroller.

Figure 13. USB micro-B connector CN2 (front view)

The related pinout for the USB ST-LINK connector is listed in Tab le 11.

Connector

CN2

Pin

number

1 VBUS

2 DM (D-) STLINK_USB_D_N PA11 USB diff. pair M

3 DP (D+) STLINK_USB_D_P PA12 USB diff. pair P

4ID- - -

5GND- - GND

Table 11. USB micro-B pinout

Pin

name

UM2324 Rev 2 27/44

Signal name

5V_STLINK /
5V_USB_CHG

ST-LINK

MCU pin

-5 V power

Function

43

Connectors UM2324

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7.2 Arduino Uno V3 connectors

The Arduino connectors CN5, CN6, CN8 and CN9 (see Figure 14) are female connectors
compatible with Arduino standard. Most shields designed for Arduino fit to the NUCLEO­G070RB or NUCLEO-G071RB board.

The Arduino connectors on STM32 NUCLEO-G070RB or NUCLEO-G071RB board support
the Arduino Uno V3.

Figure 14. Arduino connectors

28/44 UM2324 Rev 2

UM2324 Connectors

The related pinout for Arduino connector is showed in Figure 15 and Figure 16 and listed in

Tabl e 12.

Figure 15. NUCLEO-G070RB Arduino connector pinout

Figure 16. NUCLEO-G071RB Arduino connector pinout

Note: Note: Arduino Uno V3 D0 and D1 signals are connected by default on USART1 (MCU I/O

PC4 and PC5).

UM2324 Rev 2 29/44

43

Connectors UM2324

Table 12. Arduino connector pinout

Connector

CN6

CN8

Pin

number

1 NC - - Reserved for test

2 IOREF - - I/O reference

3 NRST NRST NRST RESET

4 3V3 - - 3.3 V input/output

5 5V - - 5 V output

6GND - - GND

7GND - - GND

8 VIN - - 7 V to 12 V power input

1 A0 ADC PA0 ARD_A0_IN0

2 A1 ADC PA1 ARD_A1_IN1

3 A2 ADC PA4 ARD_A2_IN4

4 A3 ADC PB1 ARD_A3_IN9

5 A4 ADC PB9 or PB11 ARD_A4_IN15|| I2C_1_SCL

6 A5 ADC PB8 or PB12 ARD_A5_IN16|| I2C_1_SDA

10 SCL/D15 ARD_D15 PB8 I2C_1_SCL

9 SDA/D14 ARD_D14 PB9 I2C_1_SDA

8 AVDD VREF+ - VREF+

Pin

name

Signal name STM32 pin Function

CN5

CN9

7GND - - GND

6 SCK/D13 ARD_D13 PA5 SPI_1_SCK

5 MISO/D12 ARD_D12 PA6 SPI_1_MISO

4 PWM/MOSI/D11 ARD_D11 PA7 SPI_1_MOSI || TIM_14_CH1

3 PWM/CS/D10 ARD_D10 PB0 SPI_1_NSS || TIM_3_CH3

2 PWM/D9 ARD_D9 PC7 TIM_3_CH2

1 D8 ARD_D8 PA9 IO

8 D7 ARD_D7 PA8 IO

7 PWM/D6 ARD_D6 PB14 TIM_15_CH1

6 PWM/D5 ARD_D5 PB4 TIM_3_CH1

5 D4 ARD_D4 PB5 IO

4 PWM/D3 ARD_D3 PB3 TIM_1_CH2

3 D2 ARD_D2 PA10 IO

2 TX/D1 ARD_D1 PC4 UART_1_TX

1 RX/D0 ARD_D0 PC5 UART_1_RX

30/44 UM2324 Rev 2

UM2324 Connectors

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7.3 ST morpho connectors CN7 and CN10

The ST morpho connectors CN7 and CN10 are male pin headers accessible on both sides
of the STM32 NUCLEO-G070RB or NUCLEO-G071RB board (see
and power pins, except VDD_CORE 1.2 V of the STM32, are available on the ST morpho
connectors. These connectors can also be probed by an oscilloscope, logical analyzer or
voltmeter.

Figure 17. ST morpho connectors

Figure 17). All signals

UM2324 Rev 2 31/44

43

Connectors UM2324

The related pinout and the MCU assignment for the ST morpho connectors are listed in

Figure 18 and Figure 19.

Figure 18. NUCLEO-G070RB ST morpho connector pinout

Figure 19. NUCLEO-G071RB ST morpho connector pinout

Note: Arduino Uno V3 D0 and D1 signals are connected by default on USART1 (MCU I/O PA2

and PA3).

32/44 UM2324 Rev 2

UM2324 NUCLEO-G070RB or NUCLEO-G071RB I/O assignment

Appendix A NUCLEO-G070RB or NUCLEO-G071RB I/O

assignment

Table 13. NUCLEO-G070RB or NUCLEO-G071RB I/O assignment

Pin No Pin name Signal or label Main feature / optional feature (SB)

1PC11 PC11 IO

2PC12 PC12 IO

3 PC13 PC13 User Button/IO

4 PC14 - OSC32_IN PC14 - OSC32_IN LSE CLK/IO

5 PC15 - OSC32_OUT PC15 - OSC32_OUT LSE CLK/IO

6 PF3 - VBAT VBAT PWR VBAT

7 PF4 - VREF+ AVDD PWR AVDD

8 VDD_1 VDD PWR VDD

9 VSS_1 GND PWR GND

10 PF0 - OSC_IN PF0 - OSC_IN HSE CLK/IO

11 PF1 - OSC_OUT PF1 - OSC_OUT HSE CLK/IO

12 PF2 - NRST PF2 - NRST RESET

13 PC0 PC0 IO

14 PC1 PC1 IO

15 PC2 PC2 IO

16 PC3 PC3 IO

17 PA0 PA0 ARD_A0_IN0

18 PA1 PA1 ARD_A1_IN1

19 PA2 UART2_TX STLK_RX

20 PA3 UART2_RX STLK_TX

21 PA4 PA4 ARD_A2_IN4

22 PA5 PA5 ARD_D13 || SPI_1_SCK

23 PA6 PA6 ARD_D12 || SPI_1_MISO

24 PA7 PA7 ARD_D11 || SPI_1_MOSI || TIM_14_CH1

25 PC4 PC4 ARD_D1 || UART_1_TX

26 PC5 PC5 ARD_D0 || UART_1_RX

27 PB0 PB0 ARD_D10 || SPI_1_NSS || TIM_3_CH3

28 PB1 PB1 ARD_A3_IN9

29 PB2 PB2 IO

30 PB10 PB10 IO

31 PB11 PB11 ARD_A4_IN15

UM2324 Rev 2 33/44

43

NUCLEO-G070RB or NUCLEO-G071RB I/O assignment UM2324

Table 13. NUCLEO-G070RB or NUCLEO-G071RB I/O assignment (continued)

Pin No Pin name Signal or label Main feature / optional feature (SB)

32 PB12 PB12 ARD_A5_IN16

33 PB13 PB13 IO

34 PB14 PB14 ARD_D6 || TIM_15_CH1

35 PB15 PB15 IO

36 PA8 PA8 ARD_D7

37 PA9 PA9 ARD_D8

38 PC6 PC6 IO

39 PC7 PC7 ARD_D9 || TIM_3_CH2

40 PD8 PD8 IO

41 PD9 PD9 IO

42 PA10 PA10 ARD_D2

43 PA 11 PA11 I O

44 PA12 PA12 IO

45 PA13 TMS SWDIO

46 PA14 - BOOT0 TCK SWCLK

47 PA15 PA15 IO

48 PC8 PC8 IO

49 PC9 PC9 IO

50 PD0 PD0 IO

51 PD1 PD1 IO

52 PD2 PD2 IO

53 PD3 PD3 IO

54 PD4 PD4 IO

55 PD5 PD5 IO

56 PD6 PD6 IO

57 PB3 PB3 ARD_D3 || TIM_1_CH2

58 PB4 PB4 ARD_D5 || TIM_3_CH1

59 PB5 PB5 ARD_D4

60 PB6 PB6 IO

61 PB7 PB7 IO

62 PB8 PB8 ARD_D15 || I2C_1_SCL

63 PB9 PB9 ARD_D14 || I2C_1_SDA

64 PC10 PC10 IO

34/44 UM2324 Rev 2

UM2324 Electrical schematics

Appendix B Electrical schematics

This section provides the design schematics for the STM32 Nucleo-64 board features.

• NUCLEO-G071RB board:

– Figure 20: Top

– Figure 21: STM32_microcontroller_IOs

– Figure 22: STM32_microcontroller_PWR

– Figure 23: Arduino extension connectors

– Figure 24: Power

– Figure 25: ST_LINK_V2-1

– Figure 26: HW Mechanical Parts

UM2324 Rev 2 35/44

43

36/44 UM2324 Rev 2

28

TOP

Title:

Size:

Reference:
Sheet: ofA4

Revision:

Project: NUCLEO-G071RB

MB1360

C-0 1

11-JUNE-18

G071RB

Date:

Variant:

TMS

TCK

MCO

NRST

STLK_RX
STLK_TX

SWO

ST_LINK_V2-1
ST_LINK_V2-1.SchDoc

PA[0..15]
PB[0..15]
PC[0..15]

NRST

PD[0..9]
PF[0..2]

Connectors
Arduino_extension_conn ectors.SchDoc

NRST

MCO

UART2_RX

UART2_TX

PA[0..15]
PB[0..15]
PC[0..15]

TCK
TMS

PD[0..9]

PF[0..2]

MCU
STM32_microcontroller_IOs.SchDoc

NRST

NRST

Power
Power.SchDoc

STM32_microcontroller_power
STM32_microcontroller_power.SchDoc

HW_Mechanical_Parts
HW_Mechanical_Parts.SchDoc

Figure 20. Top

Electrical schematics UM2324

Figure 21. STM32_microcontroller_IOs

38

STM32_microcontroller_IOs

Title:

Size:

Reference:
Sheet: ofA4

Revision:

Project: NUCLEO-G071RB

MB1360

C-0 1

11-JUNE-18

G071RB

Date:

Variant:

PA[0..15]

PA[0..15]

PB[0..15]

PB[0..15]

PC[0..15]

PC[0..15]

PF[0..2]

PF[0..2]

PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15

PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15

PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
PC10
PC11
PC12
PC13
PC14
PC15

PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD8
PD9

PF0
PF1

PF2

VDD

MCO

NRST

TCK

TMS

UART2_RX

UART2_TX

PD[0..9]

PD[0..9]

TD0341X-G01-BLA

1 3

42

B2

TD0341X-G01-BLU

1 3

42

B1

1 2

X3
N/A

DNF

NX3215SA-32.768K

X2

100nF

C28

100nF

C16

R33
N/A

DNF

R34
N/A

DNF

100R

R26

SB20

4K7

R29

C25
N/A

DNF

C26

N/A

DNF

BLUE HAT

HW10

BLACK HAT

HW11

0R

R32

0R

R31

SB30
SB29

VDD

PC13

3

PC14-OSC32_IN

4

PC15-OSC32_OUT

5

PC0

13

PC1

14

PC2

15

PC3

16

PA0

17

PA1

18

PA2

19

PA3

20

PA4

21

PA5

22

PA6

23

PA7

24

PC4

25

PC5

26

PB0

27

PB1

28

PB2

29

PB10

30

PB11

31

PB12

32

PB13

33

PB14

34

PB15

35

PC6

38

PC7

39

PC8

48

PC9

49

PA8

36

PA9

37

PA10

42

PA11

43

PA12

44

PA13

45

PA14-boot0

46

PA15

47

PC10

64

PC11

1

PC12

2

PB3

57

PB4

58

PB5

59

PB6

60

PB7

61

PB8

62

PB9

63

PD0

50

PD1

51

PD2

52

PD3

53

PD4

54

PD5

55

PD6

56

PD8

40

PD9

41

PF0-OSC_IN

10

PF1-OSC_OUT

11

PF2-NRST

12

STM32G071RBT6

U7A

5.6pF

C23

5.6pF

C24

UM2324 Electrical schematics

UM2324 Rev 2 37/44

38/44 UM2324 Rev 2

48

STM32_microcontroller_power

Title:

Size:

Reference:
Sheet: ofA4

Revision:

Project: NUCLEO-G071RB

MB1360

C-0 1

11-JUNE-18

G071RB

Date:

Variant:

VDD

VBAT

VDD

AVDD

AGND

AGND

VDD

100nF

C31

100nF

C33

1uF

C30

L1

SB28

SB31

4.7uF

C32

SB26

VDD

8

VSS

9

VBAT

6

VREF+

7

STM32G071RBT6

U7B

Figure 22. STM32_microcontroller_PWR

Electrical schematics UM2324

Figure 23. Arduino extension connectors

58

Connectors

Title:

Size:

Reference:
Sheet: ofA4

Revision:

Project: NUCLEO-G071RB

MB1360

C-0 1

11-JUNE-18

G071RB

Date:

Variant:

Extension connectors

3V35V

A0
A1
A2

A3
A4
A5

D0

D1

D2

D4
D3

D5

D6

D7

D8

D9

D10

D14

D15

PA0

PA4

PA1

PB12

PB11

NRST

VIN

PA[0..15]

PA[0..15]

PB[0..15]

PB[0..15]

PC[0..15]

PC[0..15]

PD[0..9]

AGND

NRST

NRST

AVDD

VDD

PF[0..2]

PF[0..2]

PB8
PB9

D13
D12

D11

MCU

Close only for I2C on A4/A5

SB46,SB52

Arduino Connector Arduino Connector

Arduino Connector

Arduino

Connector

E5V

Morpho connector Morpho connector

VBAT

PD[0..9]

3V3

PB1

SSW-108-03-x-S

1

2

3

4

5

6

7

8

CN9

BSN20

1

2 3

G

SD

T2

GREEN

LD4

SB22

SB4
SB3

SB23

SB5
SB2

PA15

PA13

PA14

PC10
PC12

PD0
PD3

PD4

PC11
PD2

PD1

PC2
PC3

PB7

PC13
PC14
PC15
PF0
PF1

PC4

PA5
PA6
PA7

PA10

PC5

PB3

PB4

PB8
PB9

PA9

PA8

PC7

PB5

PB0

PB10

PC9

PA11

PA12

PA2

PA3

PC6

PB14

PB15

PB2

PC1
PC0

PB13

PC8

PD8

PD6

PD9

PB6

PD5 SSW-110-03-x-S

1

2

3

4

5

6

7

8

9

10

CN5

SSW-108-03-x-S

1
2
3
4
5
6
7
8

CN6

TSW-119-09-x-D

1 2
3 4
5
7
9
11
13
15
17
19

6

8
10
12
14
16
18
20

21
23
25
27
29
31
33
35
37

22
24
26
28
30
32
34
36
38

CN7

TSW-119-09-x-D

1 2
3 4
5
7
9
11
13
15
17
19

6

8
10
12
14
16
18
20

21
23
25
27
29
31
33
35
37

22
24
26
28
30
32
34
36
38

CN10

SSW-106-03-x-S

1
2
3
4
5
6

CN8

1M

R35

1K

R30

C29
N/A

DNF

SB21

510R

R28

SB24

VIN_5V

SB27

SB25

AGND

5V_USB_CHG

UM2324 Electrical schematics

UM2324 Rev 2 39/44

40/44 UM2324 Rev 2

68

Power

Title:

Size:

Reference:
Sheet: ofA4

Revision:

Project: NUCLEO-G071RB

MB1360

C-0 1

11-JUNE-18

G071RB

Date:

Variant:

3V3

VIN

5V VDD

VIN_5V

Shunt Fitted

JP3

LD1117S50TR

Vin3Vout

2

Gnd

1

Tab

4

U5

SB1

100nF

C21

1uF

C22

100nF

C20

1uF

C19

10uF

C18

10uF

C17

LDL112PV33R

NC

3

Vin

6

GND

2

EN

1

Vout

4

NC5EP

EP

U6

HW13

HW12

Shunt Fitted 1-2

1 2
3 4
5 6
7 8

JP2

E5V

5V_USB_STLK

5V_USB_CHG

GREEN

LD3

1K

R27

Figure 24. Power

Electrical schematics UM2324

Figure 25. ST_LINK_V2-1

78

ST_LINK_V2-1

Title:

Size:

Reference:
Sheet: ofA4

Revision:

Project: NUCLEO-G071RB

MB1360

C-0 1

11-JUNE-18

G071RB

Date:

Variant:

STM_RST

OSC_IN
OSC_OUT

AIN_1

COM

PWR

Jumpers ON --> NUCLEO Selected
Jumpers OFF --> ST-LINK Selected

Board Ident: PC13=0

SWD

SWCLK

SWDIO

SWD

RESERVED

DEFAULT

LED_STLK

TMS

TCK

TCK/SWCLK
TMS/SWDIO

MCO

MCO

AIN_1

NRST

T_NRST

TX
RX

STLK_RX

STLK_RX

STLK_TX

STLK_TX

SWO

T_SWO

3V3_STLK

3V3_STLK

3V3_STLK

3V3_STLK

3V3_STLK

3V3_STLK

3V3_STLK

PWR_EXT

3V3_STLK

3V3

3V3_STLK

Wired on Solder Side

E5V

5V

USB ST-LINK

3V3_STLK

STL_USB_D_N
STL_USB_D_P

transistor pins numbers follo w
SOT23 JEDEC standard,

i

Diff Pair 90ohm

i

Diff Pair 90ohm

USB_uB_105017-0001

VBUS

1

DM

2

DP

3

ID

4

GND

5

Shield

6

USB_Micro-B receptacle

Shield

7

Shield

8

Shield

9

EXP

10

EXP

11

CN2

BAT60JFILM

D1

BAT60JFILM

D3

BAT60JFILM

D5

USBLC6-2SC6

IO2

4

VBUS

5

IO16IO_1

1

GND

2

IO_2

3

U1

BSR14

3

1

2

T1

NX3225GD-8.00M

12

X1

HSMF-A201-A00J1

2 1

43

Red

Green

LD1

2K7

R7

4K7

R6

100K

R5

10K

R4

R3 N/A

DNF

100nF

C1

100nF

C10

100nF

C15

100nF

C2

100nF

C27

100nF

C3

100nF

C12

100nF

C6

100K

R8

4K7

R21

4K7

R22

10K

R11

10K

R1

100R

R20

100R

R23

330R

R15

330R

R14

1K5

R10

36K

R12

1uF

C13

1uF

C7

10nF

C14

5V_USB_STLK

1uF

C8

RED

LD2

PWR_ENn

SB15

SB19
SB14

C11
N/A

DNF

100nF

C9

SB6

SB8

SB10

SB12

SB7

SB9

SB11

SB13

STM32F103CBT6

VBAT

1

PA7

17

PC13

2

PA12

33

PC14

3

PB0

18

PC15

4

JTMS/SWDIO

34

OSCIN

5

PB1

19

OSCOUT

6

VSS_2

35

NRST

7

PB2/BOOT1

20

VSSA

8

VDD_2

36

VDDA

9

PB10

21

PA0

10

JTCK/SW CLK

37

PA1

11

PB11

22

PA2

12

PA15/JTDI

38

PA3

13

VSS_1

23

PA4

14

PB3/JTDO

39

PA5

15

VDD_1

24

PA6

16

PB4/JN TRST

40

PB12

25

PB5

41

PB13

26

PB6

42

PB14

27

PB7

43

PB15

28

BOOT0

44

PA8

29

PB8

45

PA9

30

PB9

46

PA10

31

VSS_3

47

PA11

32

VDD_3

48

U2

STM_JTCK

USB_RENU Mn

USB_RENUMn

T_JTCK

T_JTMS

T_NRST

T_SWO

STL_USB_D_N

STL_USB_D_P

T_JTCK

T_JTMS

STM_JTMS

T_SWDIO_IN

LED_STLK

T_SWO

PWR_ENn

T_JTCK

T_JTDO

T_JTDI

T_NRST

T_JRST

STM_JTMS

STM_JTCK

123

4

CN4

R2 N/A

DNF

22R

R9

22R

R16

22R

R17

22R

R19

10pF

C4

10pF

C5

100R

R13

47K

R24

1K

R18

PHFS25-11-06-G0B115-T-1

2

1

3
4
5
6

CN11

LDK120M33R

Vout

5

Vin

1

GND

2

EN

3

BYPASS

4

U3

HW6 HW7

HW8 HW9

BAT60JFILM

D4

VIN_5V

BAT60JFILM

D2

SB17

5V_USB_CHG

SB16

SB18

5V_USB_CHG

5V_USB_CHG

5V_USB_CHG

5V_USB_CHG

JP1

STMPS2141STR

GND

2

IN

5

EN

4

OUT

1

FAULT

3

U4

Shunt Fitted

JP4

Shunt Fitted

JP5

JP6

47K

R36

UM2324 Electrical schematics

UM2324 Rev 2 41/44

42/44 UM2324 Rev 2

88

HW Mechanical parts

Title:

Size:

Reference:
Sheet: ofA4

Revision:

Project: NUCLEO-G071RB

MB1360

C-0 1

11-JUNE-18

G071RB

Date:

Variant:

HW Mechanical parts

MB1360B01 XXXX

BOARD REF

HW1

NUCLEO-G071RB

BOARD CPN

HW2 MB1360B

PCB

HW4

Figure 26. HW Mechanical Parts

Electrical schematics UM2324

UM2324 Revision history

8 Revision history

Table 14. Document revision history

Date Revision Changes

24-Oct-2018 1 Initial version

26-Oct-2018 2 Added NUCLEO-G070RB board to document.

UM2324 Rev 2 43/44

43

UM2324

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44/44 UM2324 Rev 2