ST STM32L4P5G-DK User manual

Introduction
The STM32L4P5G-DK Discovery kit is a complete demonstration and development platform for the STMicroelectronics Arm®
Cortex®-M4 core-based STM32L4P5AGI6P microcontroller with four I2C buses, three SPI and six USART ports, CAN port, two
SAI ports, 12-bit ADC, 12-bit DAC, internal 320-Kbyte SRAM and 1-Mbyte flash memory, two Octo‑SPI memory interfaces,
touch-sensing capability, USB OTG FS port, TFT LCD controller, flexible memory controller (FMC), 8- to 14-bit DCMI interface,
and JTAG debugging support.
The STM32L4P5G-DK Discovery kit is used as a reference design for user application development before porting to the final
product.
The full range of hardware features on the board helps the user evaluate all the peripherals (USB OTG FS, Octo‑SPI flash
memory and PSRAM memory device, eMMC, and others) and develop applications. The ARDUINO® Uno V3 and STMod+
connectors provide easy connection to extension shields or daughterboards for specific applications.
STLINK-V3E is integrated into the board, as an embedded in-circuit debugger and programmer for the STM32 MCU and the
USB Virtual COM port bridge.
Figure 1. STM32L4P5G-DK top view Figure 2. STM32L4P5G-DK bottom view
Pictures are not contractual.
Discovery kit with STM32L4P5AG MCU
UM2651
User manual
UM2651 - Rev 3 - October 2023
For further information contact your local STMicroelectronics sales office. www.st.com

1 Features
• STM32L4P5AGI6P Arm® Cortex® core-based microcontroller featuring 1 Mbyte of flash memory and 320
Kbytes of RAM in a UFBGA169 package
• 240x240 64‑bit color LCD with RGB interface (connector only)
• 4-Gbyte onboard eMMC
• On-board current measurement
• SAI audio codec (footprint only)
• MEMS digital microphone (footprint only)
• 512-Mbit Octo‑SPI NOR flash memory with DDR mode
• 64-Mbit Octo‑SPI PSRAM memory with DDR mode
• 2 user LEDs
• Reset buttons
• 4-direction joystick with a selection button
• Board connectors:
– 8-bit camera (footprint only)
– Stereo headset jack (footprint only)
– USB with Micro-AB
– User interface through USB Virtual COM port
– Arm® Cortex® 10-pin 1.27 mm-pitch debug connector over STDC14 footprint
– ARDUINO® Uno V3 expansion connector
– STMod+ expansion connector
• Flexible power‑supply options:
– ST-LINK USB VBUS, USB OTG connector, or external sources
• On-board STLINK-V3E debugger/programmer with USB re-enumeration capability: mass storage, Virtual
COM port, and debug port
• Microcontroller supply voltage: fixed 3.3 V and extern SMPS to generate Vcore logic supply
• Comprehensive free software libraries and examples available with the STM32CubeL4 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.
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2 Ordering information
To order the STM32L4P5G-DK Discovery kit, refer to Table 1. Additional information is available from the
datasheet and reference manual of the target STM32.
Table 1. Ordering information
Order code Board references Target STM32
STM32L4P5G-DK • MB1535(1)
• MB1280(2) STM32L4P5AGI6P
1. Main board.
2. Fanout board.
2.1 Codification
The meaning of the codification is explained in Table 2.
Table 2. Codification explanation
STM32XXYYZ-DK Description Example: STM32L4P5G-DK
XX MCU series in STM32 32-bit Arm Cortex MCUs STM32L4+ series
YY MCU product line in the series STM32L4P5
ZSTM32 flash memory size:
• G for 1 Mbyte 1 Mbyte
DK Discovery kit Discovery kit
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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 Micro-B 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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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
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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5 Delivery recommendations
Before the first use, check the board for any damage that might have occurred during shipment, and check that all
socketed components are firmly fixed in their sockets and that none is loose in the plastic bag.
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6 Hardware layout and configuration
The STM32L4P5G-DK Discovery kit is designed around the STM32L4P5AGI6P target microcontroller. Figure 3
illustrates STM32L4P5AGI6P connections with peripheral components. Figure 4 shows the location of the main
components on the top side of the Discovery board and Figure 5 shows the location of the main components on
the bottom side of the Discovery board.
Figure 3. STM32L4P5G-DK hardware block diagram
DT53251V1
STM32L4P5AGI6P
3.3 V
Audio codex
RTC
DAP
32 KHz crystal
VBAT
STLINK-V3E
I2C1
SAI1
LEDs
eMMC
Joystick,
buttons
GPIO
SDMMC1
USB connector OTG FS
OctoSPI2
Octo-SPI
flash memory
USART1
DFSDM
3.3 V power
supply
1.8 V power
supply
RGB TFT LCD
STMod+
connector
OctoSPI1
Octo-SPI
PSRAM
MEMs
DCMI
Camera
connector
PIR
ARDUINO®
connector
Touch panel
MFX
SMPS power
supply
Note: The gray features are not soldered. Only footprints are present on the board.
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Figure 4. STM32L4P5G-DK PCB layout (top view)
DT53252V1
SWCLK and SWDIO
(CN2)
STMod+ connector
(CN1)
STLINK-V3E
overcurrent alarm
(LD3)
Camera connector
(CN5)
STM32L4P5AGI6P
(U8)
User LEDs
(LD1 and LD2)
ST-LINK SWD
(CN4)
STLINK-V3E COM
(LD4)
5V PWR
(LD5)
STDC14 connector
(CN6)
USB-OTG overcurrent
(LD6)
USB-OTG
(LD7)
USB-OTG connector
(CN7)
5V source selection
(JP4)
LCD connector
(CN9)
External SMPS selection
(CN8)
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Figure 5. STM32L4P5G-DK PCB layout (bottom view)
DT53253V1
STLINK-V3E switcher
(SW1)
ARDUINO® connector
(CN13 and CN15)
MFX SWD
(CN17)
STLINK-V3E USB
(CN11)
ARDUINO® LED
(LD8)
Audio OUT
(CN16)
ARDUINO® connector
(CN12 and CN14)
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Figure 6 provides the mechanical dimensions of the STM32L4P5G-DK board.
Figure 6. STM32L4P5G-DK board mechanical dimensions (top view)
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