ST STM32U5G9J-DK2 Manuale utente
Introduction
The STM32U5G9J-DK2 Discovery kit is a complete demonstration and development platform for the STM32U5G9ZJT6Q
microcontroller, featuring an Arm® Cortex®‑M33 core with Arm® TrustZone®.
Leveraging the innovative ultra-low power-oriented features, 3 Mbytes of embedded SRAM, 4 Mbytes of embedded flash
memory, and rich graphics features, the STM32U5G9J-DK2 Discovery kit enables users to prototype applications with
state‑of‑the‑art energy efficiency, as well as providing stunning and optimized graphics rendering with the support of a 2.5D
Neo-Chrom accelerator, Chrom-ART Accelerator, and Chrom-GRC™ MMU.
The STM32U5G9J-DK2 Discovery kit integrates a full range of hardware features that help the user evaluate all the peripherals,
such as a 5" RGB 800x480 pixels TFT colored LCD module with a 24‑bit RGB interface and capacitive touch panel, high-speed
USB Type-C®, Octo‑SPI flash memory device, ARDUINO®, and STLINK-V3EC (USART console).
The STM32U5G9J-DK2 Discovery kit integrates an STLINK-V3EC embedded in-circuit debugger and programmer for the
STM32 microcontroller with a USB Virtual COM port bridge and comes with the STM32CubeU5 MCU Package, which provides
an STM32 comprehensive software HAL library as well as various software examples.
Figure 1. STM32U5G9J-DK2
with LCD (top view)
Figure 2. STM32U5G9J-DK2
without LCD (top view)
Figure 3. STM32U5G9J-DK2
(bottom view)
Pictures are not contractual.
Discovery kit with STM32U5G9ZJ MCU
UM3223
User manual
UM3223 - Rev 1 - January 2024
For further information contact your local STMicroelectronics sales office. www.st.com
1 Features
• Ultra-low-power STM32U5G9ZJT6Q microcontroller based on the Arm® Cortex®‑M33 core with Arm®
TrustZone®, featuring 4 Mbytes of flash memory, 3 Mbytes of SRAM, and SMPS, in an LQFP144 package
• 5" 800 × 480 pixels TFT LCD module with 16.7M color depth, parallel RGB interface, and capacitive touch
panel
• USB Type-C® with USB 2.0 high-speed interface, UCPD Sink only
• Low-power system designed for VDD at 3.3 V only
• 1-Gbit Octo‑SPI flash memory
• Two user LEDs
• User and reset push-buttons
• Board connectors:
–ST-LINK USB Type-C®
–User USB Type-C®
–Arm® Cortex® MIPI10 connector (SWD/JTAG/trace)
–Tag‑Connect™ 10-pin footprint
–ARDUINO® Uno V3 expansion
– Double-row 2.54 mm pitch expansion connector for additional peripherals prototyping
• 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 STM32CubeU5 MCU Package
• Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded
Workbench®, MDK-ARM, and STM32CubeIDE
Note: Arm and TrustZone are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
UM3223
Features
UM3223 - Rev 1 page 2/37
2 Ordering information
To order the STM32U5G9J-DK2 Discovery kit, refer to Table 1. Additional information is available from the
datasheet and reference manual of the target STM32.
Table 1. List of available products
Order code Board reference Target STM32
STM32U5G9J-DK2 • MB1918(1)
• MB1860(2) STM32U5G9ZJT6Q
1. Main board
2. LCD daughterboard
2.1 Codification
The meaning of the codification is explained in Table 2.
Table 2. Codification explanation
STM32XXYYZ-DKT Description Example: STM32U5G9J-DK2
XX MCU series in STM32 32-bit Arm Cortex MCUs STM32U5 series
YY MCU product line in the series STM32U5F9/5G9 product line
ZSTM32 flash memory size:
• J for 4 Mbytes 4 Mbytes
DK Discovery kit Discovery kit
T Sequential number Second Discovery kit version
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Ordering information
UM3223 - Rev 1 page 3/37
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: 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 Demonstration software
The demonstration software, included in the STM32Cube MCU Package corresponding to the on-board
microcontroller, is preloaded in the STM32 flash memory for easy demonstration of the device peripherals in
standalone mode. The latest versions of the demonstration source code and associated documentation can be
downloaded from www.st.com.
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Development environment
UM3223 - Rev 1 page 4/37
4 Conventions
Table 3 provides the conventions used for the ON and OFF settings in the present document.
Table 3. ON/OFF convention
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
Capacitor Cx ON Capacitor soldered
Capacitor Cx OFF Capacitor not soldered
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Conventions
UM3223 - Rev 1 page 5/37
5 Quick start
Before installing and using the product, accept the evaluation product license agreement from the www.st.com/
epla webpage.
Follow the sequence below to configure the STM32U5G9J-DK2 Discovery board and launch the demonstration
application (refer to Figure 5 for component location):
1. For the correct identification of all the device interfaces from the host PC and before connecting the board,
install the STLINK-V3EC USB driver available on the www.st.com website.
2. Check that the JP1 jumper (5V power source selection) is set on [1-2] selecting 5V from STLINK-V3EC
(STLK) and JP4 (VDD_MCU current measurement) is ON powering the microcontroller. Refer to Table 4.
3. Connect the STM32U5G9J-DK2 Discovery board to a PC with a USB cable (USB Type-A or USB Type-C® to
USB Type-C®) through the STLINK-V3EC USB connector (CN8) to power the board.
4. Then, the 5V_PWR green LED (LD1) lights up and the COM LED (LD7) blinks.
5. The LCD module displays a menu with icons, indicating the demonstration application software startup.
6. The demonstration application software and its user manual, as well as other software examples for exploring
STM32U5G9J-DK features are available on the STM32CubeU5 webpage.
7. Develop your application using the available examples.
Table 4. Default jumper setting
Jumper Function Setting(1) Comment
JP1 5 V power source selection [1-2] 5 V from STLINK-V3EC (STLK)
JP4 IDD measurement ON VDD_MCU current measurement
1. The default setting is in bold.
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Quick start
UM3223 - Rev 1 page 6/37
6 Hardware layout and configuration
6.1 Hardware block diagram
The STM32U5G9J-DK2 is designed around the STM32U5G9ZJT6Q microcontroller in an LQFP144 package. The
hardware block diagram in Figure 4 illustrates the connection between the STM32U5G9ZJT6Q microcontroller
and the peripherals. Figure 5 and Figure 6 show the locations of these features on the STM32U5G9J-DK2
Discovery board.
Figure 4. STM32U5G9J-DK2 hardware block diagram
DT59217V1
STLINK_V3EC
USB Type-C®
Octo-SPI
16MHz
crystal
32 KHz
crystal
ARDUINO® Uno
V3 connector
Boot switch
User button
Reset button
Red user LED
Green user LED
5" LCD
capacitive
touch panel
(MB1860 on
RGB connector)
USB Type-C®
connector
External debug
MIPI10 and
Tag-Connect™
SWD/JTAG
4
4
4
UART
22
Hexa-SPI
11
BOOT0
1
LCD
I2C 2
GPIO 1
RGB888 and ctrl
Touch panel
ON/OFF
Backlight
Touch-panel
interrupt
PWM
GPIO
GPIO 1
GPIO 1
GPIO 1
NRST
USB DP/DM USB DP/DM
OCTOSPI
Reset
Reset
Reset
SWD/
JTAG
UART
SWD/JTAG
Reset
ADCs
ADC/I2C
I2C
UART
ADCs
ADC/
I2C
2
4
I2C
2
PWM
UART
2
PWM
4
GPIOs GPIOs
4
PWM
SPI
PWM 1
SPI
OSC32K
2
OSC
2
Discrete
components
DC/DC 3V3 power supply
Extension connector
GPIOs 16
STM32U5G9ZJT6Q
1
1
2
3
28
1
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Hardware layout and configuration
UM3223 - Rev 1 page 7/37
6.2 Main board layout
Figure 5. Main board layout (top view)
DT59218V1
STLK_NRST
header (JP3)
STLINK_V3EC
(U13)
STLINK USB
(CN8)
Power source
header (JP1)
USB Type-C®
connector (CN2)
TCPP01-M12 USB
protection (U3)
Reset button
(B1)
MIPI10 connector
(CN11)
Octo-SPI flash memory
(U11)
BOOT0 switch
(SW1)
IDD MCU
(JP4)
STM32U5G9 MCU
(U2)
ARDUINO® connectors
(CN4, CN5, CN6, CN7)
Spare GPIO
connector (CN1)
Figure 6. Main board layout (bottom view)
DT59219V1
RGB LCD connector
(CN3)
Tag-Connect™
footprint (CN10)
ST-LINK COM LED (LD7)
5V power LED (LD1)
5V USB power (LD5)
User red LED (LD2)
User green LED (LD3)
User button (B2)
ST-LINK power LED (LD6)
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Hardware layout and configuration
UM3223 - Rev 1 page 8/37
6.3 Mechanical drawing
Figure 7. Main board mechanical drawing (in millimeters)
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Hardware layout and configuration
UM3223 - Rev 1 page 9/37
6.4 Embedded STLINK-V3EC
The chapter below gives some information about the implementation of the STLINK-V3EC on this board.
For detailed information about the STLINK-V3EC capabilities such as LED management, drivers, and firmware,
refer to the technical note Overview of ST-LINK derivatives (TN1235).
For information about the debugging and programming features of the STLINK-V3EC, refer to the user manual
STLINK-V3SET debugger/programmer for STM8 and STM32 (UM2448).
Figure 8. STM32U5G9J-DK2 ST-LINK
DT59221V1
STLK_NRST
header (JP3)
STLINK_V3EC
(U13)
STLINK USB
(CN8)
MIPI10 connector
(CN11)
Tag-Connect™
footprint (CN10)
ST-LINK
COM LED (LD7)
ST-LINK
power LED (LD6)
6.4.1 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 MIPI10 connector (CN11) or the Tag‑Connect™ footprint
(CN10) with a TC2050-IDC-NL cable
Features supported in STLINK-V3EC:
• 5 V/500 mA power supplied by the USB Type-C® connector (CN1)
• USB 2.0 USB high-speed‑compatible interface
• JTAG and Serial Wire Debug (SWD) with Serial Wire Viewer (SWV)
• Virtual COM port (VCP)
• COM status LED (LD7), which blinks during communication with the PC
• Power status LED (LD6), which gives information about STLINK-V3EC target power
• USB-C® overvoltage protection (U16) with current limitation
For detailed information about these LEDs, refer to the technical note Overview of ST-LINK derivatives (TN1235).
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Hardware layout and configuration
UM3223 - Rev 1 page 10/37
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