STMicroelectronics NUCLEO-H503RB User guide

Page 1

UM3121

User manual

STM32H5 Nucleo-64 board (MB1814)

Introduction

The STM32H5 Nucleo-64 board based on the MB1814 reference board (order code NUCLEO-H503RB) provides an affordable and flexible way for users to try out new concepts and build prototypes, by choosing from the various combinations of performance and power consumption features provided by the STM32H5 series microcontroller.

The ARDUINO® Uno V3 connectivity and the ST morpho headers provide easy expansion of the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields.

The STM32H5 Nucleo-64 board does not require any separate probe as it integrates the STLINK-V3EC debugger/programmer. The STM32H5 Nucleo-64 board comes with the STM32 comprehensive free software libraries and examples available with the

STM32CubeH5 MCU Package.

Figure 1. NUCLEO-H503RB top view

Figure 2. NUCLEO-H503RB bottom view

Pictures are not contractual.

UM3121 - Rev 1 - February 2023 For further information contact your local STMicroelectronics sales office.

www.st.com

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1 Features

• NUCLEO-H503RB microcontroller based on the Arm® Cortex®-M33 core, featuring 128 Kbytes of flash memory and 32 Kbytes of SRAM in an LQFP64 package

• USB Type-C® (Device mode/Full speed)

• One user LED shared with ARDUINO® Uno V3

• Reset and user push-buttons

• 32.768 kHz LSE crystal oscillator

• 24 MHz HSE crystal oscillator

• Board connectors: –

ST-LINK USB Type-C

–

User USB Type-C

– MIPI10 for debugging (SWD/JTAG) –

ARDUINO® Uno V3 expansion connector

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

• Flexible power-supply options: ST-LINK USB V

• On-board STLINK-V3EC debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port

• Comprehensive free software libraries and examples available with the STM32CubeH5 MCU Package

• Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded Workbench®, MDK-ARM, and STM32CubeIDE

Note: Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.

, user USB connector, or external sources

BUS

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Features

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2 Ordering information

To order the STM32H5 Nucleo-64 board, refer to Table 1. Additional information is available from the datasheet and reference manual of the target STM32.

Order code Board reference Target STM32

NUCLEO-H503RB MB1814 STM32H503RBT6

2.1 Products and codification

The meaning of the codification is explained in Table 2.

NUCLEO-XXYYRT Description Example: NUCLEO-H503RB

XX MCU series in STM32 32‑bit Arm Cortex MCUs STM32H5 series

YY MCU product line in the series STM32H503

R STM32 package pin count 64 pins

STM32 flash memory size:

• B for 128 Kbytes

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Ordering information

Table 1. Ordering information

Table 2. Codification explanation

128 Kbytes

In this document, for any information that is common to all sales types, the references are noted as the STM32H5 Nucleo-64 board.

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3 Development environment

3.1 System requirements

• Multi‑OS support: Windows® 10, Linux® 64-bit, or macOS

• USB Type-A or USB Type-C® to USB Type-C® cable

Note:

3.2 Development toolchains

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

Linux® is a registered trademark of Linus Torvalds.

Windows is a trademark of the Microsoft group of companies.

•

IAR Systems® - IAR Embedded Workbench

•

Keil® - MDK-ARM

• STMicroelectronics - STM32CubeIDE

On Windows® only.

(1)

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Development environment

®(1)

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4 Conventions

Table 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

Jumper JPx [1-2] Jumper fitted between Pin 1 and Pin 2

Solder bridge SBx ON SBx connections closed by 0 Ω resistor

Solder bridge SBx OFF SBx connections left open

Resistor Rx ON Resistor soldered

Resistor Rx OFF Resistor not soldered

Capacitor Cx ON Capacitor soldered

Capacitor Cx OFF Capacitor not soldered

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Conventions

Table 3. ON/OFF convention

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5 Quick start

The STM32H5 Nucleo-64 board is a low-cost and easy-to-use development kit, to evaluate and start development quickly with an STM32H5 series microcontroller in an LQFP 64-pin package.

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

epla webpage. For more information on the STM32H5 Nucleo-64 board and demonstration software, visit the www.st.com/stm32nucleo webpage.

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Quick start

5.1

5.2

Getting started

Follow the sequence below to configure the STM32H5 Nucleo-64 board and launch the demonstration application (refer to Figure 5 for component location):

1. Check the jumper position on the board (refer to Figure 3).

2. Power the board by connecting the STM32H5 Nucleo-64 board to a PC with a USB cable (USB Type-A to USB Type-C® or USB Type-C® to USB Type-C®) through the USB connector (CN1) of the board.

3. Then, the 5V_PWR green (LD3), the COM (LD1), and the PWR (LD7) LEDs light up, and the user green LED (LD2) blinks.

4. Press the user blue button (B1).

5. Observe how the blinking of the green LED (LD2) changes according to the clicks on the button (B1).

6. The demonstration software and several software examples that allow exercising Nucleo features are available on the www.st.com website.

7. Develop your application using the available examples.

Default board configuration

The default jumper configuration and voltage settings are shown in Table 4.

Table 4. Default jumper configuration

Jumper

JP1 ST-LINK reset OFF

JP2 IDD measurement ON VDD_MCU current measurement

JP5 5 V power source selection [1-2] 5 V from STLINK-V3EC (5V_STLK)

JP6 VDD ON VDD supplied with 3V3

Definition Position Comment

STLINK-V3EC MCU is not under Reset mode

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Default board configuration

Two additional jumpers are set on the GND header (CN11 and CN12) as spare jumpers for configuration usage (JP1).

Figure 3. Default jumper settings

JP5

JP2

JP6

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6 Hardware layout and configuration

The STM32H5 Nucleo-64 board is designed around an STM32H5 series microcontroller in a 64-pin LQFP package.

Figure 4 shows the connections between the STM32H5 and its peripherals (STLINK-V3EC, push-buttons, LEDs,

USB, ARDUINO® connectors, and ST morpho headers).

Figure 5 and Figure 6 show the location of these features on the STM32H5 Nucleo-64 board.

The mechanical dimensions of the board are shown in Figure 7.

Figure 4. Hardware block diagram

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Hardware layout and configuration

ST-LINK part

connector

I/O

USB Type-C

STLINK-V3EC

SWD

microcontroller

connector

Embedded

STM32

UART

VCP

I/O

LD2

connector

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ARDUINO

ST morpho extension header

MCU part

User

button

(B1)

Note: VCP: Virtual COM port

SWD: Serial Wire Debug

USB

USB Type-C

connector

ARDUINO

ST morpho extension header

Reset

button

(B2)

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6.1 PCB layout

ST-LINK RST (JP1)

Figure 5. Top layout

ST-LINK USB Type-C

connector (CN1)

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PCB layout

ST-LINK power status LED (LD7) ST-LINK COM LED (LD1)

PWR LED (LD3)

MIPI10 connector (CN4)

User button (B1)

VDD connection to 3V3 (JP6)

IDD measurement (JP2)

ARDUINO

ST morpho pin header (CN7)

ARDUINO

User USB connector (CN3)

connector (CN6)

connector (CN8)

Figure 6. Bottom layout

Power source selection (JP5)

User LED (LD2) Reset button (B2)

ARDUINO

STM32 microcontroller (U13)

ST morpho pin header (CN10)

ARDUINO

USB V

connector (CN5)

connector (CN9)

LED (LD6)

BUS

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Board sticker

Product sticker

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6.2 Mechanical drawing

Figure 7. STM32H5 Nucleo-64 board mechanical drawing (in millimeters)

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Mechanical drawing

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7 Embedded STLINK-V3EC

The chapter below gives some information about the implementation of STLINK-V3EC. For more details on STLINK-V3EC such as LEDs management, drivers, and firmware, refer to the technical note

Overview of ST-LINK derivatives (TN1235). For information about the debugging and programming features of STLINK-V3EC, refer to the user manual

STLINK-V3SET debugger/programmer for STM8 and STM32 (UM2448).

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Embedded STLINK-V3EC

7.1

Description

There are two different ways to program and debug the onboard STM32 MCU.

• Using the embedded STLINK-V3EC

• Using an external debug tool connected to the CN4 STDC14/MIPI10 connector

Refer to Table 5 to switch between STLINK-V3EC and STDC14 configurations.

The STLINK-V3EC facility for debugging and flashing is integrated into the STM32H5 Nucleo-64 board. Supported features in STLINK-V3EC:

•

5 V/500 mA power supply capability through the USB Type-C® connector (CN1)

• USB 2.0 high-speed-compatible interface

• JTAG and Serial Wire Debug (SWD) with Serial Wire Viewer (SWV)

• Virtual COM port (VCP)

• 3.3 V application voltage

• COM status LED, which blinks during communication with the PC

• Power status LED giving information about STLINK-V3EC target power

• USB-C overvoltage protection (U5) with current limitation

Two tricolor LEDs (green, orange, and red) provide information about STLINK-V3EC communication status (LD1) and STLINK-V3EC power status (LD7).

For detailed information about the management of these LEDs, refer to the technical note Overview of ST-LINK derivatives (TN1235).

7.1.1 Drivers

The installation of drivers is not mandatory from Windows 10® but allocates an ST-specific name to the ST-LINK COM port in the system device manager.

For detailed information on the ST-LINK USB drivers, refer to the technical note Overview of ST-LINK derivatives (TN1235).

7.1.2 STLINK-V3EC firmware upgrade

STLINK-V3EC embeds a firmware upgrade (stsw-link007) mechanism through the USB-C port. As the firmware might evolve during the lifetime of the STLINK-V3EC product (for example to add new functionalities, fix bugs, and support new microcontroller families), it is recommended to keep the STLINK-V3EC firmware up to date before starting to use the NUCLEO-H503RB board. The latest version of this firmware is available from the

www.st.com website.

For detailed information about firmware upgrades, refer to the technical note Overview of ST-LINK derivatives (TN1235).

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7.1.3 Using an external debug tool to program and debug the on-board STM32

Before connecting any external debug tool, fit the jumper on JP1 to put STLINK-V3EC in Reset mode. Then connect the external debug tool through the STDC14/MIPI10 debug connector (CN4).

Table 5 explains the JP1 configuration.

Table 5. JP1 configuration

Jumper Definition Setting Comment

An external debugger connected to the STDC14/MIPI10 connector (CN4) can

[1-2]

JP1 Debugger selection

OFF

When using the external debug connector (CN4), the USB ST-LINK connector (CN1) can be used to supply the STM32H5 Nucleo-64 board (JP5 on [7-8] 'VBUS_STLK'), or you can select another power supply source as described in Section 8 Power supply and power selection.

be used.

STLINK-V3EC no longer drives the embedded STM32

The embedded STLINK-V3EC is selected (default configuration).

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Description

Figure 8. Connecting an external debug tool to program the on-board STM32

STLINK-V3EC USB connector

(CN1)

5V power supply selection (JP5)

ST-LINK reset

(JP1)

STDC14/MIPI10

debug connector

(CN4)

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Figure 9. STDC14/MIPI10 connector (CN4)

Table 6 describes the STDC14/MIPI10 connector (CN4) pinning.

Table 6. STDC14/MIPI10 debug connector (CN4) pinning

MIPI10 pin STDC14 pin CN5 Designation

- 1 NC

- 2 NC

1 3 VDD

2 4 JTMS/SWDIO

Reserved

Target VDD

Target SWDIO using SWD protocol or target JTMS using JTAG protocol (SB30 ON)

3 5 GND Ground

4 6

JTCK/

SWCLK

Target SWCLK using SWD protocol or target JTCK using JTAG protocol (SB29 ON)

5 7 GND Ground

6 8 JTDO/SWO

7 9 NC

Target SWO using SWD protocol or target JTDO using JTAG protocol (SB28 ON)

T_JRCLK

8 10 JTDI Not used by SWD protocol. Target JTDI using JTAG protocol (SB41 ON)

9 11 GNDDetect

GND detection for plug indicator

10 12 NRST Target NRST

- 13 VCP_RX

- 14 VCP_TX

Target RX used for VCP (with UART supporting bootloader)

Target TX used for VCP (with UART supporting bootloader)

1. Do not connect to the target. It is not connected to the Nucleo-64 board.

2. Input for the external debug tools. Output for the Nucleo-64 board

3. SWO is optional and required only for Serial Wire Viewer (SWV) trace.

4. Optional loopback of JTCK on the target side

5. NC means not required for the SWD connection. It is not connected to the Nucleo-64 board.

6. Tied to GND. The tool might use this signal for tool detection.

7. Output for the external debug tools, *input for the Nucleo-64 board

(1)

(2)

(3)

(4)

(5)

/NC

(6)

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8 Power supply and power selection

Six different sources can provide the power supply to the board:

• A host PC connected to CN1 through a USB cable (default configuration)

• An external 7 to 12 V power supply connected to CN6 pin 8 or CN7 pin 24 (VIN)

• An external 5 V power supply connected to CN7 pin 6 (E5V)

• An external 5 V USB charger (VBUS_STLK) connected to CN1

• A host PC connected to CN3 through a USB cable

• An external 3.3 V power supply (3V3) connected to CN6 pin 4 or CN7 pin 16

Either the host PC through the USB cable, or an external source VIN (7 to 12 V), E5V (5 V), or +3.3 V power supply pins on CN6 or CN7, provides the power supply. In case VIN, E5V, or +3.3 V is used to power the STM32H5 Nucleo-64 board, this power source must comply with the EN-60950-1: 2006+A11/2009 standard and must be SELV (safety extra low voltage) with limited power capability.

In case the power supply is +3.3 V, STLINK-V3EC is not powered and cannot be used.

Power supply input from STLINK-V3EC USB connector: 5V_STLK (default configuration)

The STM32H5 Nucleo-64 board and shield can be powered from STLINK-V3EC connector CN1 (5 V/500 mA). To select the 5V_STLK power source, JP5 must be fitted on [1-2] ‘5V_STLK’ (refer to Figure 10). This is the default

configuration.

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Power supply and power selection

Figure 10. Power supply input from STLINK-V3EC USB connector with PC (5 V, 500 mA maximum)

3V3

If the USB enumeration succeeds, the ST-LINK power is enabled, by asserting the T_PWR_EN signal from STLINK-V3EC. This pin is connected to a power switch STMPS2151STR (U4), which powers the board. The power switch STMPS2151STR (U4) features also a current limitation to protect the PC in case of a short circuit onboard. If an overcurrent (more than 500 mA) happens onboard, the POWER status LED (LD7) is lit in red color.

The STLINK-V3EC USB connector (CN1) can power the Nucleo board with its shield.

• If the host can provide the required power, the power switch STMPS2151STR and the green LED (LD3) are turned ON. Thus, the Nucleo board and its shield can consume up to 500 mA current, but not more.

• If the host is not able to provide the requested current, the enumeration fails. Therefore, the STMPS2151STR power switch (U4) remains OFF and the MCU part including the extension board is not powered. As a consequence, the green LED (LD3) remains turned OFF. In this case, it is mandatory to use an external power supply.

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Warning: In case the maximum current consumption of the STM32H5 Nucleo-64 board and its shield

boards exceed 500 mA, it is mandatory to power the STM32H5 Nucleo-64 board, using an external power supply connected to E5V, VIN, or +3.3 V.

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Power supply and power selection

External power supply input from VIN (7 to 12 V, 800 mA maximum)

When the STM32H5 Nucleo-64 board is power supplied by VIN, the JP5 jumper must be fitted on [3-4] '5V_VIN' (refer to Figure 11 and Table 7.

The STM32H5 Nucleo-64 board and its shield boards can be powered in three different ways from an external power supply, depending on the used voltage. The three power sources are summarized in Table 7.

Table 7. External power sources VIN (7 to 12 V)

Input

power

name

VIN

Connector pins Voltage

CN6 pin 8

CN7 pin 24

7 to 12 V 800 mA

Maximum

current

From 7 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

• 250 mA input current when 9 V < VIN < 12 V

Figure 11. Power supply input from VIN (7 to 12 V, 800 mA maximum)

3V3

VIN < 12V

Limitation

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Power supply and power selection

External power supply input E5V (5 V, 500 mA maximum)

When the STM32H5 Nucleo-64 board is power supplied by E5V, the JP5 jumper must be fitted on [5-6] (E5V) (refer to Figure 12. Power supply input from E5V (5 V, 500 mA maximum) and Table 8. Power supply input from

E5V (5 V, 500 mA maximum).

Table 8. Power supply input from E5V (5 V, 500 mA maximum)

Input power

name

E5V CN7 pin 6 4.75 to 5.25 V 500 mA

Connector pins Voltage Max current

Figure 12. Power supply input from E5V (5 V, 500 mA maximum)

E5V

3V3

External power supply input from a USB charger (5 V, 500 mA)

When the STM32H5 Nucleo-64 board is power supplied by a USB charger on CN1, the JP5 jumper must be set on [7-8] 'VBUS_STLK' (refer to Figure 13 and Table 9).

Table 9. External power source VBUS_STLK (5 V, 500 mA)

Input power

name

VBUS_STLK CN1 5 V 500 mA

Connector pins Voltage Max current

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Power supply and power selection

Figure 13. Power supply input from STLINK-V3EC USB connector with a USB charger (5 V, 500 mA

maximum)

USB charger

3V3

External power supply input 3V3

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When the 3.3 V is provided by a shield board, it is interesting to use the 3V3 (CN6 pin4 or CN7 pin16) directly as power input (refer to Figure 14 and Table 10). In this case, the programming and debugging features are not available, since STLINK-V3EC is not powered.

Table 10. External power source 3V3

Input power

name

3V3

Connector pins Voltage range Max current

CN6 pin 4

CN7 pin 16

3.0 to 3.6 V 1.3 A

Figure 14. Power supply input from external 3V3

jumper

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3V3

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Power supply and power selection

Power supply input from the USB user connector

The STM32H5 Nucleo-64 board and shield can be powered from USB user connector CN3 (5 V/500 mA). To select the VBUSC power source, JP5 must be fitted on [9-10] 'VBUSC' (refer to Figure 15 and Table 11).

Table 11. External power source VBUSC (5 V, 500 mA maximum)

Input power

name

VBUSC CN3 5 V 500 mA

Connector pins Voltage range Max current

Figure 15. Power supply input from USB user connector (5 V, 500 mA)

3V3

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Host PC

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Programming/debugging when the power supply is not from STLINK-V3EC (STLK)

9 Programming/debugging when the power supply is not from

STLINK-V3EC (STLK)

When powered by VIN, E5V, or USB user, it is still possible to use STLINK-V3EC for VCP, programming, or debugging.

In this case, the following power sequence procedure must be respected:

1. Set the JP5 jumper according to the selected 5 V power source.

2. Connect the external power source according to JP5.

3. Power on the external power supply.

4. Check that the 5 V green LED (LD3) is turned ON.

5. Connect the PC to the USB ST-LINK connector (CN1).

If this sequence is not respected, the board might be powered by the V following risk might be encountered:

• If the board needs more than 500 mA current, the PC might be damaged or the current limited by the PC. Therefore, the board is not powered correctly.

• 500mA is requested at enumeration, so there is a risk that the request is rejected and enumeration does not succeed if the PC cannot provide such current. Consequently, the board is not power supplied and the 5 V green LED (LD3) remains OFF.

from STLINK-V3EC first, and the

BUS

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10 Clock sources

Three clock sources are available on the STM32H5 Nucleo-64 board:

• LSE: 32.768 kHz crystal for the STM32 embedded RTC

• MCO: 8 MHz clock from STLINK-V3EC for the STM32 microcontroller

• HSE: 24 MHz oscillator for the STM32 microcontroller.

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Clock sources

10.1

10.2

LSE clock (low‑speed external clock) - 32.768 kHz

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

• On-board oscillator (default): X2 crystal. Refer to the application note Oscillator design guide for STM8AF/AL/S, STM32 MCUs and MPUs (AN2867). ST recommends using NX1610SE-32.768KHZ- EXS00A-MU01499 (32.768 kHz, 9 pf load capacitance, 20ppm) from NDK. The configuration must be:

– SB30 and SB31 ON – SB29 and SB32 OFF

• Oscillator from external PC14: From an external oscillator through pin 25 of the ST morpho connector (CN7). The configuration must be:

– SB29 and SB32 ON – SB30 and SB31 OFF

• LSE not used: PC14 and PC15 are used as GPIOs instead of the low-speed clock. The configuration must be:

– SB29 and SB32 ON – SB30 and SB31 OFF

HSE clock (high‑speed external clock) - 24 MHz

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

• MCO from STLINK-V3EC: The MCO output of ST-LINK is used as an input clock. The MCO clock frequency cannot be changed. it is fixed at 8 MHz and connected to the PH0‑OSC_IN of the STM32H5 series microcontroller. The configuration must be:

– SB27 ON – SB25 and SB26 OFF – SB24 and SB28 OFF

• HSE on-board oscillator from X3 crystal (default): For typical frequencies and its capacitors and resistors, refer to the STM32H5 series microcontroller datasheet and the application note Oscillator design guide for STM8AF/AL/S, STM32 MCUs and MPUs (AN2867) for the oscillator design guide. The X3 crystal has the following characteristics: 24 MHz, 6 pF, and 20 ppm. ST recommends using NX2016SA-24MHz-EXS00ACS10820 manufactured by NDK. The configuration must be:

– SB25 and SB26 ON – SB24 and SB28 OFF – SB27 OFF – C56 and C59 ON with 5.6 pF capacitors

• Oscillator from external PF0: From an external oscillator through pin 29 of the CN7 connector. The configuration must be:

– SB28 ON – SB24 OFF – SB25 and SB26 OFF – SB27 OFF.

• HSE not used: PF0 and PF1 are used as GPIOs instead of clocks. The configuration must be: – SB24 and SB28 ON – SB27 OFF – SB25 and SB26 OFF

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11 Board functions

11.1 LEDs

STLINK-V3EC COM (LD1) and STLINK-V3EC POWER STATUS (LD7) LEDs

Two tri‑color (green, orange, and red) LEDs provide information about the STLINK-V3EC communication status (LD1) and STLINK-V3EC power status (LD7). For details information about these two LEDs, refer to the technical note Overview of ST-LINK derivatives (TN1235).

User LED (LD2)

This green LED is a user LED connected to STM32H5 I/O PA5 (SB6 ON) corresponding to the ARDUINO® D13. To light LD2, a high logic state '1' must be written into the corresponding GPIO PA5. A transistor is used to drive LD2.

The function of the user LED (LD2) can be modified and programmed by the user to give another status signal that might be relevant to the board.

LD2 consumption does not impact the VDD STM32H5 power measurement, since LD2 is isolated from it.

PWR LED (LD3)

The green LED (LD3) is used as a board power‑on indicator and indicates that the STM32H5 Nucleo-64 is powered by a 5 V power source and +5V is available on CN6 pin 5 and CN7 pin 18.

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Board functions

USB power fault (OC, overcurrent) LED (LD4)

LD4 indicates that the board power consumption via the USB ST-LINK exceeds 500 mA. Consequently, the user must power the board using an external power supply.

USB power fault (OC, overcurrent) LED (LD5)

The red LED (LD5) indicates that the power consumption via the USB user exceeds 500 mA when the STM32H5 Nucleo-64 board works as a Host.

USB Type-C® LED (LD6)

The green LED (LD6) indicates the presence of VBUSC (5 V) on the USB user connector (CN3). Refer to the

Power supply input from the USB user connector for more details.

Table 12. LED indicators

LED color

Green/orange/red LD1 On-board STLINK-V3EC communication status

Green LD2 Test status

Green LD3 +5V power indicator

Red LD4 Overcurrent indicator on USB ST-LINK connector (CN1)

Red LD5 Overcurrent indicator on USB user connector (CN3)

Green LD6 VBUS presence indicator on USB user connector (CN3)

Green/orange/red LD7 On-board STLINK-V3EC power status

Reference System element monitored

11.2 Push-buttons

Two buttons are available on the STM32H5 Nucleo-64 board.

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Current consumption measurement (IDD)

Blue user button (B1)

The user button is connected to the PC13 I/O by default (tamper support: SB16 ON and SB21 OFF). The user button can also be connected to PA0 (wake-up support: SB21 ON and SB16 OFF) of the STM32H5 series microcontroller. When the button is pressed, the logic state is HIGH, otherwise, the logic state is LOW.

Black reset button (B2)

This push-button is connected to NRST and is used to reset the STM32H5 series microcontroller. When the button is pressed the logic state is LOW, otherwise, the logic state is HIGH.

11.3

Current consumption measurement (IDD)

The JP2 jumper, labeled IDD, is used to measure the STM32H5 microcontroller consumption by removing the jumper and by connecting an ammeter:

• JP2 must be ON when STM32H5 is powered with VDD (default).

• If JP2 is OFF, an ammeter must be connected to measure the STM32H5 current. If there is no ammeter, the STM32H5 is not powered.

11.4 Virtual COM port (VCP): USART1/USART3

The STM32H5 Nucleo-64 board offers the possibility to choose between two USART interfaces (USART1 or USART3) to connect to STLINK-V3EC.

The selection between USART1 and USART3 is done by setting the related solder bridges as detailed in

Table 13.

Table 13. USART configuration

Solder bridge configuration

SB2 and SB3 ON

SB18 and SB22 OFF

SB19 and SB33 ON

SB20 and SB23 OFF

SB2 and SB3 OFF

SB18 and SB22 ON

SB19 and SB33 OFF

1. The default configuration is in bold.

SB20 and SB23 ON

(1)

USART3 (PA3/PA4) connected to STLINK-V3EC Virtual COM port.

(USART3 supports the Bootloader mode).

USART1 (PB14/PB15) connected to ARDUINO® Uno V3 (D1 and D0) and ST morpho connector (CN10 pins 35 and 37 and CN10 pins 26 and 28).

USART1 (PB14/PB15) connected to STLINK-V3EC Virtual COM port.

USART3 (PA3/PA4) connected to ARDUINO® Uno V3 (D1 and D0) and ST morpho connector (CN10 pins 35 and 37 and CN10 pins 26 and 28).

Feature

11.5

UM3121 - Rev 1

USB full speed (Device mode)

The STM32H5 Nucleo-64 board supports USB full-speed (FS) communication via a USB Type-C® connector. It also supports USB Device mode and can be powered by the USB Type-C® connector (CN3) with a 500 mA

current limitation. The green LED (LD6) is lit when VBUSC (USB_VBUS signal name) is powered by a USB Host connected to

CN3.

Warning: If the STM32H5 Nucleo-64 board is configured to work as a Host by default, this

configuration must not be used by the customer as it is not USB-C compliant.

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Page 23

Device mode management.

Device mode is managed manually by solder bridges as described in Table 14.

Table 14. Host and Device configurations

Solder bridge configuration

(1)

SB1 and SB7 ON

SB14 ON

SB4 and SB8 OFF

SB1 and SB7 OFF

SB14 OFF

1. The default configuration is in bold.

SB4 and SB8 ON

The STM32H5 Nucleo-64 board works as a Host (56 kΩ pull-up resistors exposed on CC1 and CC2 pins of CN3).

Not to be used.

The STM32H5 Nucleo-64 board works as a Device (5.1 kΩ pull-down resistors exposed on CC1 and CC2 pins of CN3).

Recommended configuration

Supported mode

Figure 16. USB Type-C® connector (CN3) front view

UM3121

USB full speed (Device mode)

Table 15 describes the USB Type-C® connector (CN3) pinout.

Table 15. USB Type-C® connector (CN3) pinout

STM32

- GND GND A1 B12 GND GND -

- - TX1+ A2 B11 RX1+ - -

- - TX1- A3 B10 RX1- - -

- USB_VBUS VBUS A4 B9 VBUS USB_VBUS -

PA12 USB_FS_P D+ A6 B7 D- USB_FS_N PA11

PA11 USB_FS_N D- A7 B6 D+ USB_FS_P PA12

-- - SBU1 A8 B5 CC2

- USB_VBUS VBUS A9 B4 VBUS USB_VBUS -

- - RX2- A10 B3 TX2- - -

- - RX2+ A11 B2 TX2+ - -

- GND GND A12 B1 GND GND -

Signal name Pin name Pin Pin Pin name Signal name

56 kΩ pull‑up resistors or 5.1 kΩ pull‑down

CC1 A5 B8 SBU2 - -

resistors exposed

56 kΩ pull‑up resistors or 5.1 kΩ pull‑down resistors exposed

STM32

UM3121 - Rev 1

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Page 24

12 Expansion connectors

Six expansion connectors are implemented on the Nucleo-64 board:

• CN5, CN6, CN8, and CN9 as the ARDUINO® Uno V3 connector

• CN7 and CN10 as the ST morpho expansion connectors.

UM3121

Expansion connectors

12.1

ARDUINO® Uno V3

The ARDUINO® connectors CN5, CN6, CN8, and CN9 are female connectors compatible with the ARDUINO standard. Most shields designed for ARDUINO® can fit the STM32H5 Nucleo-64 board.

The ARDUINO® connectors on the STM32H5 Nucleo-64 board support the ARDUINO® Uno V3.

Figure 17. ARDUINO® connectors

D[15:8] (CN5)

D[7:0] (CN9)

ARDUINO

Power (CN6)

A[5:0] (CN8)

ARDUINO

UM3121 - Rev 1

DT59085V1

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Page 25

The related pinout for the ARDUINO® connectors is listed in Table 16.

Table 16. ARDUINO® connectors pinout

Left connectors Right connectors

No.

CN6

Power

CN8

Analog

Pin No.

name

- - - - I2C1_SCL PB6 D15 10

- - - - I2C1_SDA PB7 D14 9

- - - - AVDD - AVDD 8

- - - - Ground - GND 7

1 - - 5V_IN test SPI1_SCK PA5 D13 6

2 IOREF - 3V3 Ref SPI1_MISO PA6 D12 5

3 NRST NRST Reset

4 3V3 - 3V3 output

5 5V - 5V input/output TIM3_CH1 PC6 D9 2

6 GND - Ground IO PC7 D8 1

7 GND - Ground IO PA8 D7 8

8 VIN - Power input TIM2_CH3 PB10 D6 7

1 A0 PA0 ADC1_INP0 TIM3_CH1 PB4 D5 6

2 A1 PA1 ADC1_INP1 IO PB5 D4 5

3 A2 PA2 ADC1_INP14 TIM2_CH2 PB3 D3 4

4 A3 PB0 ADC1_INP9 IO PA10 D2 3

5 A4 PC1/PB7

6 A5 PC0/PB6

MCU pin Function Function MCU pin

TIM3_CH2,

SPI1_MOSI

TIM3_CH4,

SPI1_NSS

ADC1_INP11/

I2C1_SDA

ADC1_INP10/

I2C1_SCL

UART1_TX/

USART3_TX

UART1_RX/

USART3_RX

ARDUINO® Uno V3

name

PA7 D11 4

PC9 D10 3

PB14/PA4 D1 2

PB15/PA3 D0 1

Pin No.CNNo.

UM3121

CN5

Digital

CN9

Digital

Note: Default configuration is in bold.

UM3121 - Rev 1

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Page 26

12.2 ST morpho connector (CN7 and CN10)

The ST morpho connector consists of two 2.54 mm pitch male-pin headers (CN7 and CN10). They are used to connect the STM32H5 Nucleo-64 board to an extension board or a prototype/wrapping board placed on the top of the ST morpho connector. All signals and power pins of the STM32H5 are available on the ST morpho connector. An oscilloscope, logical analyzer, or voltmeter can also probe this connector.

Figure 18. ST morpho connectors (CN7 and CN10)

UM3121

ST morpho connector (CN7 and CN10)

ST morpho connector [1:38]

(CN7)

ST morpho connector [1:38] (CN10)

DT59086V1

UM3121 - Rev 1

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Page 27

UM3121

ST morpho connector (CN7 and CN10)

Table 17 shows the pin assignments for the STM32 on the ST morpho connector.

Table 17. Pin assignment of the ST morpho connector

CN7 odd pins CN7 even pins CN10 odd pins CN10 even pins

1 PC10 2 PC11 1 - 2 PC8

3 PC12 4 PD2 3 PB6 4 -

5 VDD 6 E5V 5 PB7 6 PC5

BOOT0

(1)

8 GND 7

9 - 10 - 9 GND 10 -

11 - 12 IOREF 11 PA5 12

PA13

PA14

(5)

14 NRST 13 PA6 14

16 3V3 15 PA7 16 PB12

17 PA15 18 5V 17 PC9 18 -

19 GND 20 GND 19 PC6 20 GND

21 - 22 GND 21 PC7 22 PB2

23 PC13 24 VIN 23 PA8 24 PB1

25 PC14 26 - 25 PB10 26 PB15

27 PC15 28 PA0 27 PB4 28 PB14

29 PF0 30 PA1 29 PB5 30 PB13

31 PF1 32 PA2 31 PB3 32 AGND

33 VBAT 34 PB0 33 PA10 34 PC4

35 PC2 36

37 PC3 38

PC1

PC0

(6)

/PB7

/PB6

35 PB14 36 PB8

37 PB15 38 -

1. BOOT0 is set to ‘0’ by default. It can be set to ‘1’ with a jumper plugged between pin5 (VDD) and pin7 (BOOT0) of CN7.

2. AVDD is connected to VDD_MCU by default (R33 fitted).

3. VBUS_STLK is the 5 V power from the STLINK-V3EC USB connector. It rises before the 5 V of the SYM32H5 Nucleo-64

board.

PA11 and PA12 are shared with USB signals connected to a USB Type-C® connector. It is not recommended to use them as I/O pins. By default, they are connected to D+/D- signals (SB13 and SB17 ON).

5. PA13 and PA14 are shared with SWD signals connected to STLINK-V3EC. It is not recommended to use them as I/O pins.

By default, they are used as SWD signals (SB40 and SB41 ON).

6. The default configuration is in bold.

AVDD

(2)

VBUS_STLK

PA12

PA11

(3)

(4)

UM3121 - Rev 1

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Page 28

13 STM32H5 Nucleo-64 I/O assignment

Table 18. STM32H5 Nucleo-64 I/O assignment

Pin Pin name Signal or label

1 VBAT VBAT Power supply for RTC when VDD is not present

2 PC13 PC13 USER button/IO

3 PC14-OSC32_IN OSC32_IN/PC14 LSE CLK/IO

4 PC15-OSC32_OUT OSC32_OUT/PC15 LSE LCK/IO

5 PF0-OSC_IN OSC_IN/PF0 HSE CLK/I

6 PF1-OSC_OUT OSC_OUT/PF1 HSE LCK/O

7 NRST T_NRST STM32H5 RESET

8 PC0 PC0 ARD_A5–ADC1_INP10

9 PC1 PC1 ARD_A4–ADC1_INP11

10 PC2 PC2 IO

11 PC3 PC3 IO

12 VSSA/VREF- AGND AGND

13 VDDA/VREF+ VREFP

14 PA0 PA0 ARD_A0–ADC1_INP0/User button

15 PA1 PA1 ARD_A1–ADC1_INP1

16 PA2 PA2 ARD_A2–ADC1_INP14

17 PA3 USART3_RX ARD_D0/STLINK_RX (T_VCP_RX)

18 VSS GND PWR GND

19 VDD VDD VDD voltage supply

20 PA4 USART3_RX ARD_D1/STLINK_TX (T_VCP_TX)

21 PA5 PA5 ARD_D13–SPI1_SCK

22 PA6 PA6 ARD_D12–SPI1_MISO

23 PA7 PA7 ARD_D11–SPI1_MOSI/TIM3_CH2

24 PC4 PC4 IO

25 PC5 PC5 IO

26 PB0 PB0 ARD_A3–ADC1_INP9

27 PB1 PB1 IO

28 PB2 PB2 IO

29 PB10 PB10 ARD_D6–TIM2_CH3

30 VCAP1 VCAP VCORE supply voltage

31 VSS GND PWR GND

32 VDD VDD VDD voltage supply

33 PB12 PB12 IO

34 PB13 PB13 IO

35 PB14 USART1_TX

36 PB15 USART1_RX

37 PC6 PC6 ARD_D9–TIM3_CH1

UM3121

STM32H5 Nucleo-64 I/O assignment

Main feature/optional feature/SB

External analog power supply for ADCs and DACs/ Reference voltage supply for ADCs and DACs

ARD_D1/STLINK_TX (T_VCP_TX)

ARD_D0/STLINK_RX (T_VCP_RX)

(1)(2)

(3)

UM3121 - Rev 1

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Page 29

UM3121

STM32H5 Nucleo-64 I/O assignment

Pin Pin name Signal or label

Main feature/optional feature/SB

38 PC7 PC7 ARD_D8 - IO

39 PC8 PC8 IO

40 PC9 PC9 ARD_D10–SPIx_CS/TIM3_CH4

41 PA8 PA8 ARD_D7 - IO

42 PA9 PA9 USB_VBUS

43 PA10 PA10 ARD_D2 - IO

44 PA11 PA11 USB_FS_N/IO

45 PA12 PA12 USB_FS_P/IO

46 PA13 T_SWDIO T_SWDIO

47 VSS GND PWR GND

48 VDD VDD VDD voltage supply

49 PA14 T_SWCLK T_SWCLK

50 PA15 T_JTDI T_JTDI

51 PC10 PC10 USB_FS_PWR_EN

52 PC11 PC11 IO

53 PC12 PC12 IO

54 PD2 PD2 USB_FS_OVCR

55 PB3 PB3 ARD_D3 - TIM2_CH2/T_SWO

56 PB4 PB4 ARD_D5–TIM3_CH1

57 PB5 PB5 ARD_D4–IO

58 PB6 PB6 ARD_D15–I2C1_SCL/I3C1_SCL

59 PB7 PB7 ARD_D14–I2C1_SDA/I3C1_SDA

60 BOOT0 BOOT0 BOOT0

61 PB8 PB8 IO

62 VCAP3 VCAP VCORE supply voltage

63 VSS GND PWR GND

64 VDD VDD VDD voltage supply

1. The default configuration is in bold.

2. All Nucleo-64 products are delivered with solder bridges configured according to the target MCU supported.

3. For pins 35 and 36, refer to Section 11.4 Virtual COM port (VCP): USART1/USART3.

(1)(2)

UM3121 - Rev 1

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Page 30

14 NUCLEO-H503RB product information

14.1 Product marking

The stickers located on the top or bottom side of all PCBs provide product information:

• First sticker: product order code and product identification, generally placed on the main board featuring the target device. Example:

Product order code Product identification

• Second sticker: board reference with revision and serial number, available on each PCB. Example:

MBxxxx-Variant-yzz syywwxxxxx

On the first sticker, the first line provides the product order code, and the second line the product identification. On the second sticker, the first line has the following format: “MBxxxx-Variant-yzz”, where “MBxxxx” is the board

reference, “Variant” (optional) identifies the mounting variant when several exist, “y” is the PCB revision, and “zz” is the assembly revision, for example B01. The second line shows the board serial number used for traceability.

Parts marked as “ES” or “E” are not yet qualified and therefore not approved for use in production. ST is not responsible for any consequences resulting from such use. In no event will ST be liable for the customer using any of these engineering samples in production. ST’s Quality department must be contacted prior to any decision to use these engineering samples to run a qualification activity.

“ES” or “E” marking examples of location:

• On the targeted STM32 that is soldered on the board (for an illustration of STM32 marking, refer to the STM32 datasheet Package information paragraph at the www.st.com website).

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

Some boards feature a specific STM32 device version, which allows the operation of any bundled commercial stack/library available. This STM32 device shows a “U” marking option at the end of the standard part number and is not available for sales.

To use the same commercial stack in their applications, the developers might need to purchase a part number specific to this stack/library. The price of those part numbers includes the stack/library royalties.

UM3121

NUCLEO-H503RB product information

14.2

NUCLEO-H503RB product history

Table 19. Product history

Order

code

NUCLEO-H503RB

Product

identification

NUH503RB$MR1

Product details Product change description Product limitations

MCU: STM32H503RBT6 silicon revision "Z"

MCU errata sheet:

STM32H503CB/EB/KB/RB device errata (ES0561)

Board: MB1814‑H503RB-B01

Initial revision

The Host mode must not be used on the user USB connector (CN3). The hardware implementation is not USB‑C compliant.

Workaround: Use only the Device mode. Refer to Section 11.5 USB full

speed (Device mode) for hardware

settings and details.

14.3 Board revision history

Table 20. Board revision history

Board reference Board variant and revision Board change description Board limitations

MB1814 H503RB-B01 Initial revision No limitation

UM3121 - Rev 1

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Page 31

UM3121

Federal Communications Commission (FCC) and ISED Canada Compliance Statements

15 Federal Communications Commission (FCC) and ISED Canada

Compliance Statements

15.1 FCC Compliance Statement

Part 15.19

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Part 15.21

Any changes or modifications to this equipment not expressly approved by STMicroelectronics may cause harmful interference and void the user's authority to operate this equipment.

Part 15.105

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on, the user is encouraged to try to correct interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Note: Use only shielded cables.

15.2

Responsible party (in the USA)

Terry Blanchard Americas Region Legal | Group Vice President and Regional Legal Counsel, The Americas STMicroelectronics, Inc. 750 Canyon Drive | Suite 300 | Coppell, Texas 75019 USA Telephone: +1 972-466-7845

ISED Compliance Statement

ISED Canada ICES-003 Compliance Label: CAN ICES-3 (B) / NMB-3 (B). Étiquette de conformité à la NMB-003 d'ISDE Canada: CAN ICES-3 (B) / NMB-3 (B).

UM3121 - Rev 1

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Page 32

Revision history

UM3121

Table 21. Document revision history

Date Version Changes

24-Feb-2023 1 Initial release.

UM3121 - Rev 1

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Page 33

UM3121

Contents

1 Features...........................................................................2

2 Ordering information ..............................................................3

2.1 Products and codification ........................................................3

3 Development environment .........................................................4

3.1 System requirements ...........................................................4

3.2 Development toolchains .........................................................4

4 Conventions.......................................................................5

5 Quick start ........................................................................6

5.1 Getting started .................................................................6

5.2 Default board configuration ......................................................6

6 Hardware layout and configuration.................................................8

6.1 PCB layout ....................................................................9

6.2 Mechanical drawing ...........................................................10

7 Embedded STLINK-V3EC .........................................................11

7.1 Description ...................................................................11

7.1.1 Drivers ...............................................................11

7.1.2 STLINK-V3EC firmware upgrade ...........................................11

7.1.3 Using an external debug tool to program and debug the on-board STM32 ............12

8 Power supply and power selection ................................................14

9 Programming/debugging when the power supply is not from STLINK-V3EC (STLK) ..

...................................................................................19

10 Clock sources ....................................................................20

10.1 LSE clock (low‑speed external clock) - 32.768 kHz .................................20

10.2 HSE clock (high‑speed external clock) - 24 MHz ...................................20

11 Board functions ..................................................................21

11.1 LEDs........................................................................21

11.2 Push-buttons .................................................................21

11.3 Current consumption measurement (IDD) .........................................22

11.4 Virtual COM port (VCP): USART1/USART3 .......................................22

11.5 USB full speed (Device mode)...................................................22

12 Expansion connectors ............................................................24

12.1 ARDUINO® Uno V3 ...........................................................24

12.2 ST morpho connector (CN7 and CN10) ...........................................26

13 STM32H5 Nucleo-64 I/O assignment...............................................28

UM3121 - Rev 1

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Page 34

UM3121

Contents

14 NUCLEO-H503RB product information ............................................30

14.1 Product marking ..............................................................30

14.2 NUCLEO-H503RB product history ...............................................30

14.3 Board revision history ..........................................................30

15 Federal Communications Commission (FCC) and ISED Canada Compliance

Statements .......................................................................31

15.1 FCC Compliance Statement ....................................................31

15.2 ISED Compliance Statement....................................................31

Revision history .......................................................................32

List of tables ..........................................................................35

List of figures..........................................................................36

UM3121 - Rev 1

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Page 35

UM3121

List of tables

Table 1. Ordering information..................................................................3

Table 2. Codification explanation ...............................................................3

Table 3. ON/OFF convention ..................................................................5

Table 4. Default jumper configuration ............................................................6

Table 5. JP1 configuration ................................................................... 12

Table 6. STDC14/MIPI10 debug connector (CN4) pinning ............................................. 13

Table 7. External power sources VIN (7 to 12 V) ...................................................15

Table 8. Power supply input from E5V (5 V, 500 mA maximum) .........................................16

Table 9. External power source VBUS_STLK (5 V, 500 mA) ........................................... 16

Table 10. External power source 3V3 ............................................................ 17

Table 11. External power source VBUSC (5 V, 500 mA maximum) ........................................18

Table 12. LED indicators..................................................................... 21

Table 13. USART configuration ................................................................22

Table 14. Host and Device configurations .........................................................23

Table 15.

Table 16.

Table 17. Pin assignment of the ST morpho connector ................................................ 27

Table 18. STM32H5 Nucleo-64 I/O assignment ..................................................... 28

Table 19. Product history ....................................................................30

Table 20. Board revision history ................................................................30

Table 21. Document revision history .............................................................32

USB Type-C® connector (CN3) pinout ....................................................23

ARDUINO® connectors pinout ..........................................................25

UM3121 - Rev 1

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Page 36

UM3121

List of figures

Figure 1. NUCLEO-H503RB top view ...........................................................1

Figure 2. NUCLEO-H503RB bottom view ........................................................1

Figure 3. Default jumper settings ..............................................................7

Figure 4. Hardware block diagram .............................................................8

Figure 5. Top layout .......................................................................9

Figure 6. Bottom layout .....................................................................9

Figure 7. STM32H5 Nucleo-64 board mechanical drawing (in millimeters) .................................10

Figure 8. Connecting an external debug tool to program the on-board STM32 .............................. 12

Figure 9. STDC14/MIPI10 connector (CN4) ...................................................... 13

Figure 10. Power supply input from STLINK-V3EC USB connector with PC (5 V, 500 mA maximum) ............... 14

Figure 11. Power supply input from VIN (7 to 12 V, 800 mA maximum) .................................... 15

Figure 12. Power supply input from E5V (5 V, 500 mA maximum)........................................ 16

Figure 13. Power supply input from STLINK-V3EC USB connector with a USB charger (5 V, 500 mA maximum) ....... 17

Figure 14. Power supply input from external 3V3 ................................................... 17

Figure 15. Power supply input from USB user connector (5 V, 500 mA).................................... 18

Figure 16.

Figure 17.

Figure 18. ST morpho connectors (CN7 and CN10) ................................................. 26

USB Type-C® connector (CN3) front view ................................................23

ARDUINO® connectors ............................................................. 24

UM3121 - Rev 1

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UM3121

IMPORTANT NOTICE – READ CAREFULLY

STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgment.

Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of purchasers’ products.

No license, express or implied, to any intellectual property right is granted by ST herein.

Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.

ST and the ST logo are trademarks of ST. For additional information about ST trademarks, refer to www.st.com/trademarks. All other product or service names are the property of their respective owners.

Information in this document supersedes and replaces information previously supplied in any prior versions of this document.

UM3121 - Rev 1

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