ST STM32MP135F-DK User manual

Introduction
The STM32MP135 Discovery kit (STM32MP135F-DK) is designed as a complete demonstration and development platform for
the STMicroelectronics Arm®-based single Cortex®‑A7 32-bit STM32MP135 microcontrollers and their STPMIC1 companion
chip. It leverages the capabilities of the 1 GHz STM32MP135 microprocessors to allow users to develop easily applications
using STM32 MPU OpenSTLinux Distribution software (such as STM32MP1Starter).
It features 16-bit DDR3L 4 Gbits at 533 MHz, MIPI CSI-2® bridge with dual lanes up to 1.6 Gbit/s, USB Type-C® DRP port, USB
Type-A Host HS ports, microSD™ card high-speed mode up to 50 MHz, dual 10/100 Mbit/s Ethernet, 40-pin extended GPIOs,
Wi‑Fi® 802.11b/g/n, Bluetooth® Low Energy 4.1, and STLINK-V3E (UART console).
The STM32MP135F-DK, shown in Figure 1 and Figure 2, is used as a reference design for the user application development. It
cannot be considered as the hardware design of a final application.
The hardware features of the Discovery kit are available for users to develop their applications: USB, dual Ethernet, LCD,
microSD™ card, user buttons, Wi‑Fi®, Bluetooth® Low Energy, and a 2-megapixel CMOS camera module. Extension headers
allow the easy connection of a third-party board for a specific application.
An STLINK-V3E is integrated on the board, as an embedded in-circuit debugger and programmer for the STM32 MPU and the
USB Virtual COM port bridge.
Figure 1. STM32MP135F-DK top view
DT71719V1
Figure 2. STM32MP135F-DK bottom view
DT71720V1
Pictures are not contractual.
Discovery kit with 1 GHz STM32MP135FA MPU
UM2993
User manual
UM2993 - Rev 2 - March 2023
For further information contact your local STMicroelectronics sales office. www.st.com

1Features
• STM32MP135FAF7 MPU with an Arm® Cortex®‑A7 32-bit processor at 1 GHz, in a TFBGA320 package
• ST PMIC STPMIC1
• 4-Gbit DDR3L, 16 bits, 533 MHz
• 4.3" 480×272 pixels LCD display module with capacitive touch panel and RGB interface
• UXGA 2-megapixel CMOS camera module (included) with MIPI CSI-2® / SMIA CCP2 deserializer
• Wi‑Fi® 802.11b/g/n
• Bluetooth® Low Energy 4.1
• Dual 10/100 Mbit/s Ethernet (RMII) compliant with IEEE-802.3u, one with Wake on LAN (WoL) support
• USB Host 4-port hub
•USB Type-C® DRP based on an STM32G0 device
• 4 user LEDs
• 4 push-buttons (2× user, tamper, and reset)
• 1 wake-up button
• Board connectors:
–Dual-lane MIPI CSI-2® camera module expansion
– 2× Ethernet RJ45
– 4× USB Type-A
– USB Micro-B
– USB Type-C®
– microSD™ card holder
– GPIO expansion
– 5 V / 3 A USB Type-C® power supply input (charger not provided)
– VBAT for power backup
• On-board current measurement
• On-board STLINK-V3E debugger/programmer with USB re-enumeration capability: mass storage, Virtual
COM port, and debug port
• Full mainline open-source Linux® STM32 MPU OpenSTLinux Distribution (such as STM32MP1Starter)
software and examples
• Support of several Integrated Development Environments (IDEs) including STM32CubeIDE
• Bare metal support for RTOS (Microsoft® Azure®)
Note: Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
UM2993
Features
UM2993 - Rev 2 page 2/42

2Ordering information
To order the STM32MP135 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
STM32MP135F-DK • MB1635(1)
• MB1897(2) STM32MP135FAF7
1. Main board.
2. Camera module board.
2.1 Codification
The meaning of the codification is explained in Table 2.
Table 2. Codification explanation
STM32TTTXXY-ZZ Description Example: STM32MP135F-DK
STM32TTT MPU series in STM32 Arm Cortex MPUs STM32MP1 series
XX MPU product line in the series STM32MP135
Y
Options:
• F: Secure boot, cryptography hardware, 1 GHz
frequency
Secure boot, cryptography hardware,
1 GHz frequency
ZZ
Toolkit configuration:
• DK: Discovery kit with LCD, Wi‑Fi®, and Bluetooth® Low
Energy
LCD, Wi‑Fi®, and Bluetooth® Low
Energy
UM2993
Ordering information
UM2993 - Rev 2 page 3/42

3Development environment
3.1 System requirements
• Multi‑OS support: Windows® 10, Linux® 64-bit, or macOS®
• USB Type-C® to USB Type-C® charger 5 V / 3 A
• USB Type-A or USB Type-C® to USB Type-C® cable
• 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
• STMicroelectronics - STM32CubeIDE
• GCC-based IDEs
3.3 Demonstration software
The STM32 MPU OpenSTLinux Distribution base demonstration software is preloaded in the microSD™ 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.
UM2993
Development environment
UM2993 - Rev 2 page 4/42

4Conventions
Table 3 provides the conventions used for the ON and OFF settings in the present document.
Table 3. ON/OFF convention
Convention Definition
Resistor Rx ON Resistor soldered
Resistor Rx OFF Resistor not soldered
UM2993
Conventions
UM2993 - Rev 2 page 5/42

5Safety recommendations
5.1 Targeted audience
This product targets users with at least basic electronics or embedded software development knowledge like
engineers, technicians, or students.
This board is not a toy and is not suited for use by children.
5.2 Handling the board
This product contains a bare printed circuit board. As for all products of this type, the user must be careful about
the following points:
• The connection pins on the board might be sharp. Handle the board carefully to avoid getting hurt.
• This board contains static-sensitive devices. To avoid damaging it, handle the board in an ESD-proof
environment.
• While powered, do not to touch the electric connections on the board with fingers or anything conductive.
The board operates at voltage levels that are not dangerous, but some components might be damaged
when shorted.
• Do not put any liquid on the board; avoid operating it close to water or at high humidity level.
• Do not operate the board if it is dirty or dusty.
5.3 Battery
This product does not include a battery.
5.4 Laser
This product does not include a laser.
5.5 Power supply
This product is not delivered with a power supply.
The equipment must be powered by a power supply unit or an auxiliary equipment complying with the standard
EN 60950-1 (2006+A11/2009+A1/2010+A12/2011+A2/2013) / EN 62368-1 (2014+A11/2017), which must be
Safety Extra Low Voltage (SELV/ES1) with limited power capability (LPS/PS2).
UM2993
Safety recommendations
UM2993 - Rev 2 page 6/42

6Quick start
This chapter describes how to start a development quickly using the STM32MP135F-DK.
Before installing and using the product, accept the evaluation product license agreement from the www.st.com/
epla webpage.
Before the first use, make sure that no damage occurred to the product during shipment and check that:
• All socketed components are firmly secured in their sockets
• Nothing is loose in the board plastic bag or in the box
The STM32MP135 Discovery kit is a low-cost and easy-to-use development kit to quickly evaluate and start a
development with an STM32MP135 microprocessor in a TFBGA320 package.
To start using the STM32MP135F-DK, follow the steps below:
1. Check the boot mode switch positions on the board, as shown in Table 5.
2. For a correct identification among the host PC device interfaces, before connecting the board, install the
USB driver available on the www.st.com website.
3. To power the board, connect its USB Type-C® connector CN12 to a 5 V / 3 A USB Type-C® charger with its
cable. As a result, the green LED LD1 (5 V PWR LED) and the blue LED LD3 light up, and the LED LD5
(ST-LINK LED) blinks.
4. The software demonstration and the several software examples that allow the user to use the Discovery kit
features are available at the www.st.com/stm32mp1 webpage.
5. Develop an application using the available examples.
UM2993
Quick start
UM2993 - Rev 2 page 7/42

7Hardware layout and configuration
7.1 Hardware layout
The STM32MP135F-DK is designed around the STM32MP135FAF7 microprocessor (320 pins in a TFBGA
package). The hardware block diagram (see Figure 3) illustrates the connection between the STM32MP135FAF7
microprocessor and the peripherals (such as dual Ethernet, MIPI CSI-2® camera module connector, USB Type-
C® DRP and USB Type-A connectors, GPIO expansion, and embedded ST-LINK).
Figure 3. STM32MP135F-DK hardware block diagram
DT71708V1
STM32MP135F
HSI
I2C
24 MHz crystal
4.3" TFT 480×272
Ethernet 1 RMII
USB
OTG HS
USB OTG Type-C®
LTDC
Bluetooth® low
energy V4.1
UART
GPIO
Ethernet 2 RMII
DDR
I2C STPMIC1
Wake-up button
DCMI MIPI CSI-2® bridge
32 kHz crystal
DDR3L
GPIO 40-pin
connector
GPIOs
STLINK-V3E
USB Micro-B
JTAG/
SWD
SDMMC microSD™ card
connector
SDMMC Wi-Fi® 802.11 b/g/n
USB
HOST HS
RTC
Capacitive
touch panel
Hub: 4× USB Type-A
16-bit I/O expander I2C
5V_VIN
USB Type-C®
connector
2 user LEDs
2 user buttons
Tamper button
Reset button
Camera module
UM2993
Hardware layout and configuration
UM2993 - Rev 2 page 8/42

Figure 4 and Figure 5 show the locations of these features on the STM32MP135F-DK.
Figure 4. STM32MP135F-DK PCB layout: top side
DT71709V1
40-pin connector
(CN8)
User button 1
(B1)
User LED
(LD3)
User LED
(LD4)
User button 2
(B2)
4.3" LCD display
(U35)
VBAT
(CN11)
5 V power in
(LD1)
Wake up
(B3)
Reset
(B5)
Tamper
(B4)
User
LED
(LD6)
Boot mode
(SW1)
Power measurement
(CN14)
ST-LINK USB
(CN10)
ST-LINK LED
(LD5)
User LED
(LD7)
UM2993
Hardware layout
UM2993 - Rev 2 page 9/42

Figure 5. STM32MP135F-DK PCB layout: bottom side
DT71710V1
CSI connector
(CN1)
STMIPID02
de-serializer
(U2)
LCD backlight power supply
(U9)
Wi-Fi® / BLE
(U1)
microSD™
card
(CN3)
STM32
ST-LINK
(U12)
DDR3L
(U17)
STM32MP135
(U14)
STM32G0
(U21)
USB Type-C® DRP
(CN7)
USB Host
(CN6)
USB Host
(CN5)
USB hub
(U33)
STPMIC1
(U19)
5 V power in
(CN12)
Ethernet 2 PHY
(U7)
Ethernet 2
(CN15)
Ethernet 1 PHY
(U13)
Ethernet 1
(CN4)
UM2993
Hardware layout
UM2993 - Rev 2 page 10/42