ST STLINK-V3PWR User manual

Introduction

STLINK-V3PWR is a two-in-one standalone debugger probe and a source measurement unit (SMU) designed to synchronize

code execution with a power consumption of STM32 applications in real time. This tool is specifically adapted for power

consumption optimization (patent pending).

STLINK-V3PWR can be used as a standalone source measurement unit to supply power and measure the current consumption

of the target application. The product keeps the output voltage constant during fast current transient from very low current to

high current.

STLINK-V3PWR is also a standalone debugging and programming probe for STM32 microcontrollers. The product embeds a

multi-path bridge interface with an integrated level shifter to adapt to the target application I/Os voltage.

STLINK-V3PWR USB Type-C® connector allows data communication with the host PC and sinks up to 5 V/3 A to supply both

the probe and the target application, via the SMU and the auxiliary output.

Figure 1. STLINK-V3PWR top, bottom, and cable views

Picture is not contractual.

Source measurement unit (SMU) and debugger/programmer for

STM32 microcontrollers

UM3097

User manual

UM3097 - Rev 1 - March 2023

For further information contact your local STMicroelectronics sales office. www.st.com

1Features

• 1‑Quadrant source measurement unit with high resolution, and measurement flexibility:

–Programmable voltage source from 1.6 to 3.6 V

– Output current rating 500 mA with overcurrent protection (OCP) at 550 mA

– Programmable sampling rate from 1 SPS to 100 kSPS

– Dynamic measurement:

◦ 100 nA to 500 mA current / 160 nW to 1.65 W power measurements

◦ 50 kHz bandwidth / 1.6 MHz acquisition / 2% accuracy

◦ Compatible with EEMBC® ULPMark™ tests

• Auxiliary output voltage source from 1.6 to 3.6 V under up to 2 A (no current measurement, OCP at 2.5 A)

• Debugging of embedded applications:

– JTAG / Serial Wire Debug (SWD):

◦ SWD (Serial Wire Debug) and SWV (Serial Wire Viewer) communication support up to 10 MHz

◦ JTAG communication support up to 20 MHz

– UART interface on Virtual COM port (VCP) with frequency up to 12 MHz

– Multi-path bridge USB to SPI/I2C/CAN/GPIOs

– Integrated level shifter I/O voltage 1.6 to 3.6V adaptable

• Four bi-color LEDs providing probe state

• Three STDC14 to MIPI10 / STDC14 / MIPI20 flat cables with 1.27 mm pitch connectors

• Four cables (two male/male and two male/female)

• USB Type-C® connector:

– Powered through USB Type-C® (5 V/1.5 A minimum)

– USB 2.0 high‑speed interface

– Probe firmware update through USB

• Direct support from STM32CubeMonitor-Power software tool

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Features

UM3097 - Rev 1 page 2/30

2Ordering information

To order the STLINK-V3PWR SMU and in-circuit debugger/programmer for STM32, refer to Table 1.

Table 1. Ordering information

Order code Reference Description

STLINK-V3PWR STLINK-V3PWR Debug board for STM32 microcontrollers including

simultaneous current measurement

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Ordering information

UM3097 - Rev 1 page 3/30

3Development environment

STLINK-V3PWR runs with an STM32 32‑bit microcontroller based on the Arm® Cortex®-M core.

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

3.1 System requirements

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

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

Note: 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.

3.2 Development toolchains

• IAR Systems® - IAR Embedded Workbench®(1)

• Keil® - MDK-ARM(1)

• STMicroelectronics - STM32CubeIDE

1. On Windows® only.

3.3 Toolchain versions

Table 2. Glossary

Toolchain Description Minimum version

STM32CubeProgrammer ST programming tool for ST microcontrollers 1.12.0

IAR Systems® EWARM Third-party debugger for STM32 including current

measurement support 9.32.2

Keil® MDK‑ARM Third-party debugger for STM32 including current

measurement support 5.38

STM32CubeMonitor-Power ST monitoring tool for power consumption 1.2.0

STM32CubeIDE ST debugger for STM32 1.12.0

STLINK-V3-BRIDGE ST software package: C++ API compatible with the bridge

interface of STLINK-V3 and STLINK-V3PWR 1.1.0

3.4 Drivers and firmware upgrade

The driver installation is not mandatory since Windows® 10 but allocates an ST‑specific name to the ST-LINK

COM port in the system device manager. For details information regarding the ST-LINK USB driver, refer to the

technical note Overview of ST-LINK derivatives (TN1235).

STLINK-V3PWR embeds a firmware upgrade (stsw-link007) mechanism through the USB port. As the firmware

might evolve during the lifetime of the STLINK-V3PWR product, to add new functionalities, fix bugs, and support

new microcontroller families, it is recommended to visit the www.st.com website before starting to use STLINK-

V3PWR and periodically, to stay up to date with the latest firmware version. For details information about firmware

upgrades, refer to the technical note Overview of ST-LINK derivatives (TN1235).

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Development environment

UM3097 - Rev 1 page 4/30

4Glossary

Table 3. Glossary

Term Meaning

AUX Auxiliary output voltage

Target application Target product application embedding an STM32 MCU with peripherals

GND Ground

OCP Over current protection

OUT Main output voltage

OVP Over voltage protection

SMPS Switched‑mode power supply

SMU Source measure unit

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Glossary

UM3097 - Rev 1 page 5/30

5Product information

5.1 Product content

The STLINK-V3PWR kit contains:

•STLINK-V3PWR probe

• Four wires:

– Two wires male/male (red and black)

– Two wire male/female (red and black)

• Three debug cables allowing the connection from the STDC14 (DEBUG port) to:

– STDC14 connector (1.27 mm pitch) Samtec FFSD-07-D-05.90-01-N

– MIPI10/ARM10-compatible connector (1.27 mm pitch) Samtec FFSD-05/07-D-05.90-01-N

– MIPI20/ARM20-compatible connector (1.27 mm pitch) Samtec FFSD-10/07-D-05.90-01-N

Note: To support the JTAG interface, in 2.54 mm pitch, use a dedicated dongle MIPI/ARM20 to JTAG (2.54 mm) (for

example: dongle “JTAG 20 Pin 2.54 mm to 10 Pin 1.27 mm adapter”)

5.2 STLINK-V3PWR connectors and LEDs identification

This section aims to identify the location of the STLINK-V3PWR connectors and LEDs.

They are illustrated with the silkscreen on the casing serving as a functional reference for most connectors. A

connection overview is given here:

•USB-C: USB Type-C® receptacle for host PC connection using a USB Type-C® to USB Type-C® cable for

the STLINK-V3PWR power supply and data transfer. Refer to Section 5.3 USB connection with a host PC.

•DEBUG: STDC14 2x7-pin male connector with 1.27 mm pitch for connection to an STM32 target

application for debugging operations. Three different flat cables are included in the packaging to connect

with standard connectors MIPI10/ARM 10, STDC14, and ARM 20. Refer to Section 9.3 DEBUG (STM32

JTAG/SWD and VCP).

•BRIDGE: 2x11-pin male connector with 2.54 mm pitch for connection to an STM32 target application for

data communication (typically STM32’s bootloader) with several common interfaces via a proprietary USB

interface. Refer to Section 9.4 BRIDGE (I2C, CAN, SPI, UART, and GPIO).

•POWER: 3-pin screw connector with a 5 mm pitch allows supplying the target application via two

independent programmable power source: OUT (refer to Section 7.2 SMU output (OUT)) and AUX (refer

to Section 7.3 Auxiliary power source output (AUX)).

•LEDs: 4x3-colors LED to indicate the state of the product. Refer to Section 7.6 LEDs management.

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Product information

UM3097 - Rev 1 page 6/30

Figure 2. STLINK-V3PWR connections

DT59112V1

DEBUG

POWER

BRIDGE

LEDs

USB-C

Note: USB-C, DEBUG, BRIDGE, POWER connectors, and LED terminologies used in this document are referring to

the naming defined in Figure 2.

5.3 USB connection with a host PC

5.3.1 Pre‑requisite

The STLINK-V3PWR’s USB-C must be connected to a USB Type-A host PC or hub port supporting charging

(having a “spark” logo) or to a USB Type-C® host PC or hub port. Refer to Table 4 for details.

The USB LED indicates if STLINK-V3PWR is connected to a USB port supporting charging:

• USB LED in green color: The USB host port supports charging and the STLINK-V3PWR SMU (OUT) and

auxiliary output (AUX) are enabled.

• USB LED in orange color: The USB host port does not support charging and the STLINK-V3PWR SMU

(OUT) and auxiliary output (AUX) are disabled.

Note: The debugger and bridges interfaces are always functional even if the STLINK-V3PWR’s USB-C is connected

onto a standard USB HS (high

‑

speed) host port.

5.3.2 Detailed description

For the data interface, the STLINK-V3PWR’s USB-C must be connected to a USB HS host port. USB FS (full

speed) or USB LS (low speed) modes are not supported. Connecting STLINK-V3PWR to a USB SS (super

speed) host port is also possible as the USB SS port runs in HS mode.

For the power, the STLINK-V3PWR internal circuitry, including the SMU output (OUT), and the auxiliary output

(AUX) are powered by USB-C. Accordingly, the host PC must be capable to supply them, especially for the SMU

output (OUT) and the auxiliary output (AUX) that can require a significant peak of energy to power supply a

complete target application.

STLINK-V3PWR automatically detects the power budget advertised by the host PC USB port. As mentioned in

Section 5.3.1, the STLINK-V3PWR’s USB-C must be connected to a USB host PC or USB hub port that can

provide 5 V/1.5 A minimum, typically a USB host port supporting charging. Refer to Table 4 for details.

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USB connection with a host PC

UM3097 - Rev 1 page 7/30

Table 4. USB host PC or hub port identification

USB host port Port identification STLINK-V3PWR compatibility USB LED

color

Standard USB Type-A port (500 mA) OUT and AUX disabled orange

Charging USB Type-A port (1.5 A) OK green

USB Type-C®(1) port (1.5 or 3 A) OK green

Charging USB Type-C® port (3 A) OK green

1. Some USB Type-C® ports without the “spark” logo might be advertised as 500 mA ports. In that case, STLINK-V3PWR

works with the OUT and AUX disabled and the USB LED lights in orange color.

Note: Connection to a USB charger is not a functional use case for STLINK-V3PWR. In that case, USB LED lights

in green color (valid power source) and COM LED blinks red color (waiting for USB enumeration). Refer to

Section 7.6 LEDs management.

5.4 Mechanical information

Figure 3. Product dimensions

DT59117V1

90 mm

20 mm

70 mm

5.5 Thermal recommendation

STLINK-V3PWR is recommended to operate at the temperature range specified in Table 11.

STLINK-V3PWR uses precision components that are affected by temperature changes. It is recommended to use

it at a place where the thermal gradient or airflow is minimum. A typical laboratory bench or table might be an

optimal location.

Accordingly, airflow cooling holes on the top and the bottom of STLINK-V3PWR must be kept free to ease air

cooling.

Hence it is recommended to start the measurement after waiting for a few minutes after the product is plugged

into the USB port and a connection is established. This ensures the entire product self‑heating to reach

thermal equilibrium and avoid triggering a self‑calibration sequence during measurement acquisition (refer to

Section 7.2.3 Self‑calibration management).

5.6 Known limitation

The STLINK-V3PWR internal acquisition circuitry is sensitive to vibration and shock. If vibration or shock occurs

during acquisition, STLINK-V3PWR sends acquisition data containing erroneous peak current.

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Mechanical information

UM3097 - Rev 1 page 8/30

6Quick start

This section describes how to start with STLINK-V3PWR to make power measurements:

1. Check that the bundle is complete (STLINK-V3PWR with three flat cables and a bundle of four wire

jumpers).

2. Install or update the power measurement software (for example STM32CubeMonitor-Power).

3. Connect a USB Type-C® to USB Type-C® cable (recommended) or USB Type-A to USB Type-C® cable

between STLINK-V3PWR and the PC (refer to Section 5.3 USB connection with a host PC).

4. Check the LED status:

– The USB LED must turn green: STLINK-V3PWR is supplied by a valid power source from PC.

– The COM LED must turn red: STLINK-V3PWR debugger is ready.

5. Hardware configuration for power measurement: Connect the STLINK-V3PWR’s SMU (OUT and GND)

onto the power supply input of the target application using wire jumpers. Refer to Section 6.1 Typical

application.

6. Software configuration for power measurement: Refer to Section 6.2 Software configuration.

6.1 Typical application

6.1.1 Connection with a target application for power measurements

STLINK-V3PWR provides two voltage‑regulated power sources: OUT and AUX:

•OUT is a programmable voltage‑regulated power source including current measurement: Refer to

Section 7.2 SMU output (OUT).

• AUX is a programmable voltage‑regulated power source only: Refer to Section 7.3 Auxiliary power source

output (AUX).

Figure 4 provides a basic connection example of STLINK-V3PWR with a target application.

Figure 4. STLINK-V3PWR connection

DT59118V1

VDD

Peripherals

Target

application

optional

+3V3 VDD

3V3_PERIPH

DEBUG

debug I/F

ctrl I/F

GND

• Connect OUT to the target application power supply input to be measured (for example pin +3V3 of an

STM32 Nucleo board) using a wire jumper provided in the kit.

•Connect the GND to the target application ground (for example pin GND of an STM32 Nucleo board) using

a wire jumper provided in the kit.

• (Optional) Connect the AUX power source to the target application input power supply that does not require

to be measured.

6.1.2 Recommendations for power measurements

The use of wire jumpers provided in the kit must be limited to target applications not consuming more than

100 mA to avoid voltage drop through wire jumper cables.

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Quick start

UM3097 - Rev 1 page 9/30

For target applications having significant current consumption, it is recommended to use cables with adapted

conductor diameter to limit voltage drop through the cable due to wire resistance and current consumption of the

target application.

In addition, it is recommended to not use wires longer than ~30 cm and twist them (OUT and GND wires) to

reduce parasitic inductance.

6.2 Software configuration

1. Launch the STM32CubeMonitor-Power application.

2. Select the COM port of the device.

Figure 5. STM32CubeMonitor-Power setting

3. Click on the "TAKE CONTROL" button to handle the STLINK-V3PWR probe.

– ACQUISITION & REPLAY:

– Set "Sampling Frequency" to 20000 Hz [recommended value]

– Set "Acquisition Time" to 10 s

– Set "Current Threshold" to 1000 µA

– Set "Trigger Source" to "sw" (software)

– Set "Trigger Delay" to 1ms

– Set the desired "Input Voltage" of the target application inside the range 1600 mV/3600 mV

4. Click on the "START ACQUISITION" button

5. The STLINK-V3PWR's SMU turns on and current measurement acquisition starts:

– OUT and AUX LEDs turn on green (output voltage turned on)

– Current measurement is displayed in real time in the STM32CubeMonitor-Power main window.

Note: Refer to the user manual STM32CubeMonitor-Power software tool for power and ultra-low-power

measurements (UM2202).

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Software configuration

UM3097 - Rev 1 page 10/30

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