ST STM32MP157D-DK1 Manuale utente
Introduction
The STM32MP157D-DK1 and STM32MP157F-DK2 Discovery kits (STM32MP157x-DKx) are designed as complete
demonstration and development platforms for STMicroelectronics Arm®-based dual Cortex®-A7 32 bits and Cortex®-M4 32
bits MPUs in the STM32MP1 Series and their STPMIC1 companion chip. They leverage the capabilities increased-frequency
800 MHz of STM32MP1 Series microprocessors to allow users to develop applications using STM32 MPU OpenSTLinux
Distribution software (such as STM32MP1Starter) for the main processor and STM32CubeMP1 software for the co-processor.
They feature 16-bit DDR3L 4 Gbits at 533 MHz, MIPI DSISM 2 lanes at 1 Gbps, USB Type-C® DRP HS port, USB Type-A Host
HS ports, audio codec with analog audio input / output, microSD™ card high-speed mode up to 50 MHz, Gigabit Ethernet,
HDMI® up to 720p60 (1280 × 720), 40-pin extended GPIOs, ARDUINO®, Wi‑Fi® 802.11b/g/n, Bluetooth® Low Energy 4.1, and
ST-LINK/V2-1 (UART console).
The STM32MP157F-DK2, shown with display removed in Figure 1 and Figure 2, is used as a reference design for user
application development. It cannot be considered as the hardware design of a final application.
The hardware features of the Discovery kits are available for users to develop their applications: USB, Ethernet, LTDC, TFT
LCD MIPI DSISM, microSD™ card, audio codec, user buttons, Wi‑Fi®, and Bluetooth® Low Energy. Extension headers allow easy
connection of an ARDUINO® board for a specific application.
An ST-LINK/V2-1 is integrated on the board, as embedded in-circuit debugger and programmer for the STM32 MPU and the
USB Virtual COM port bridge.
Figure 1. STM32MP157F-DK2 top view Figure 2. STM32MP157F-DK2 bottom view
Pictures are not contractual.
Discovery kits with increased-frequency 800 MHz STM32MP157 MPUs
UM2637
User manual
UM2637 - Rev 2 - January 2022
For further information contact your local STMicroelectronics sales office.
www.st.com
1Features
• Common features
– STM32MP157 Arm®-based dual Cortex®‑A7 800 MHz 32 bits + Cortex®‑M4 32 bits MPU in TFBGA361
package
– ST PMIC STPMIC1
– 4-Gbit DDR3L, 16 bits, 533 MHz
– 1-Gbps Ethernet (RGMII) compliant with IEEE-802.3ab
– USB OTG HS
– Audio codec
– 4 user LEDs
– 2 user and reset push-buttons, 1 wake-up button
–5 V / 3 A USB Type-C® power supply input (not provided)
– Board connectors:
◦ Ethernet RJ45
◦ 4 × USB Host Type-A
◦USB Type-C® DRP
◦MIPI DSISM
◦ HDMI®
◦ Stereo headset jack including analog microphone input
◦ microSD™ card
◦ GPIO expansion connector (Raspberry Pi® shield capability)
◦ ARDUINO® Uno V3 expansion connectors
– On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability: Virtual COM port
and debug port
–STM32CubeMP1 and full mainline open-source Linux® STM32 MPU OpenSTLinux Distribution (such
as STM32MP1Starter) software and examples
– Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded
Workbench®, MDK-ARM, and STM32CubeIDE
• Board-specific features
– 4" TFT 480×800 pixels with LED backlight, MIPI DSISM interface, and capacitive touch panel
– Wi‑Fi® 802.11b/g/n
– Bluetooth® Low Energy 4.1
Note: Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
UM2637
Features
UM2637 - Rev 2 page 2/47
2Ordering information
To order an STM32MP157 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 Differentiating feature
STM32MP157D-DK1 • MB1272 STM32MP157DAC1 • Basic security
STM32MP157F-DK2 • MB1272
• MB1407(1) STM32MP157FAC1
• Secure Boot and cryptography
• LCD
• Wi‑Fi®
• Bluetooth® Low Energy
1. LCD extension board.
2.1 Codification
The meaning of the codification is explained in Table 2.
Table 2. Codification explanation
STM32MP1XXY-DKZ Description Example: STM32MP157F-DK2
STM32MP1 MPU series in STM32 Arm Cortex MPUs STM32MP1 Series
XX MPU product line in the series STM32MP157
Y
Options:
• D: basic security, 800 MHz increased frequency
• F: Secure Boot, cryptography hardware, 800 MHz
increased frequency
Secure Boot, cryptography hardware,
800 MHz increased frequency
DKZ
Discovery kit configuration:
• DK1: basic
• DK2: LCD, Wi‑Fi®, and Bluetooth® Low Energy
LCD, Wi‑Fi®, and Bluetooth® Low
Energy
UM2637
Ordering information
UM2637 - Rev 2 page 3/47
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-C® to Type-A 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.
All other trademarks are the property of their respective owners.
3.2 Development toolchains
• IAR Systems® - IAR Embedded Workbench®(1)
• Keil® - MDK-ARM(1)
• STMicroelectronics - STM32CubeIDE
• GCC
1. On Windows® only.
3.3 Demonstration software
The STM32 MPU OpenSTLinux Distribution and STM32CubeMP1 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.
UM2637
Development environment
UM2637 - Rev 2 page 4/47
4Conventions
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
UM2637
Conventions
UM2637 - Rev 2 page 5/47
5Delivery recommendations
Before first use, check the board for any damage that might have occurred during shipment, that all socketed
components are firmly fixed in their sockets and that none are loose in the plastic bag.
UM2637
Delivery recommendations
UM2637 - Rev 2 page 6/47
6Hardware layout and configuration
Figure 3. STM32MP157x-DKx hardware block diagram
STM32MP157x
RTC
SWD
32 KHz crystal
ST-LINK/V2-1
USB
Capacitive touch
panel multi points
USB Type- C® USB
DRP
LCD TFT
4" 480 x 800
USB
Host
USB Hub
UART
ARDUINO® Uno
connectors
GPIOs
Bluetooth® Low
Energy V4.1
UART
microSD™ card
connector SDMMC
HSI
I2C1
GPIO User interface
4x LEDs
User interface
RESET buttons
GPIO
SAI Audio DAC &
amplifier Stereo jack
line out / Mic_IN
STPMIC1
5V_VIN
Type-C® / Type-C®
cable
24 MHz crystal
I2C1
I2C1
GPIO 40-pin
connector
GPIOs
Wi-Fi® 802.11 b/g/n
SDMMC
DDR3L DDR
LTDC HDMI®
RGMII Ethernet
DSI
I2C4
I2C4
I2C1
I2C4
Power supply
Feature not available on STM32MP157D-DK1
UM2637
Hardware layout and configuration
UM2637 - Rev 2 page 7/47
Figure 4. STM32MP157x-DKx PCB layout: top side
Ethernet connector
(CN8)
Power in 5 V
(CN6)
Ethernet PHY
(U18)
Power in LED
(LD2)
Wi-Fi® / Bluetooth® Low Energy
(U8)
DSISM connector (CN4)
VBAT connector (CN3)
STPMIC (U4)
40-pin connector (CN2)
USB Hub (U7)
DDR3L (U5)
USB Host
(CN1)
HDMI® bridge (U14)
STM32MP157 (U13)
USB Host
(CN5)
USB Type-C®
(CN7)
HDMI®
(CN9)
STUSB1600 (U12)
Wake-up button (B1)
Reset button (B2)
User1 button (B3)
User2 button (B4)
Audio connector (CN10)
User LED (LD5)
User LED (LD6)
User LEDs (LD7, LD8)
STLK LED (LD4)
ST-LINK USB (CN11)
ST-LINK STM32 (U19)
UM2637
Hardware layout and configuration
UM2637 - Rev 2 page 8/47
Figure 5. STM32MP157x-DKx PCB layout: bottom side
ARDUINO® connector
(CN13)
ARDUINO® connector
(CN14)
microSD™ card
(CN15)
ARDUINO® connector
(CN16)
ARDUINO® connector
(CN17)
BOOT mode
(SW1)
6.1 Embedded ST-LINK/V2-1
6.1.1 Description
To debug the on-board STM32 MPU, the ST-LINK/V2-1 programming and debugging tool is integrated in the
STM32MP157x-DKx Discovery kit. The embedded ST-LINK/V2-1 supports only SWD and VCP for STM32
devices. For information about the debugging and programming features of ST-LINK/V2-1, refer to the ST-
LINK/V2 in-circuit debugger/programmer for STM8 and STM32 user manual (UM1075) and Overview of ST-LINK
derivatives technical note (TN1235). It is recommended to power the board (5V_VIN) before plugging the USB
debug cable to the Micro-B connector.
Figure 6. CN11 ST-LINK USB Micro-B connector pinout
UM2637
Embedded ST-LINK/V2-1
UM2637 - Rev 2 page 9/47
Table 4. CN11 ST-LINK USB Micro-B connector pinout
Pin Pin name Signal name ST-LINK STM32 pin Function
1 VBUS 5V_USB_ST_LINK - VBUS Power
2 DM USB_STLK_N PA11 DM
3 DP USB_STLK_P PA12 DP
4 ID - GND ID
5 GND GND GND GND
6.1.2 Drivers
Before connecting STM32MP157x-DKx to a Windows® (7, 8, or 10) PC via the USB, a driver for ST-LINK/V2-1
must be installed (not required for Windows® 10). It is available from the www.st.com website.
In cases where the STM32MP157x-DKx Discovery kit is connected to the PC before the driver is installed, some
Discovery kit interfaces may be declared as “Unknown” in the PC device manager. In this case, the user must
install the dedicated driver files, and update the driver of the connected device from the device manager.
6.1.3 ST-LINK/V2-1 firmware upgrade
The ST-LINK/V2-1 embeds a firmware upgrade mechanism for in-situ upgrade through the USB port. As firmware
may evolve during the lifetime of the ST-LINK/V2-1 product (addition of new functionalities, bug fixes, or support
of new microprocessor families), visiting the www.st.com website is recommended before starting to use the
STM32MP157x-DKx Discovery kit, then periodically to stay up-to-date with the latest firmware version.
6.2 Power supply
6.2.1 5 V power supply
The STM32MP157x-DKx Discovery kit is designed to be powered by a 5 V DC power source at 3 A maximum
such as:
• 5V_VBUS connected to the CN6 connector through a USB Type-C® to USB Type-C® cable
The two lines USB_PWR_CC1 and USB_PWR_CC2 are connected to PA4 and PA5 respectively to check
what is connected to CN6 and control features enabling:
– Legacy cable
– Personal computer
– 5 V DC power source at 3 A
Depending on the current needed on the devices connected to the USB port, and the board itself, power
limitations can prevent the system from working as expected. The user must ensure that the STM32MP157x-DKx
Discovery kit is supplied with the correct power source depending on the current needed. It is recommended to
use a USB Type-C® to USB Type-C® 5 V/3 A charger.
6.2.2 STPMIC1 power supply
For general information concerning the STPMIC1, refer to the datasheet on the www.st.com website.
STPMIC1 supply
• VDD_CORE (BUCK1) used to supply the core of the STM32MP157x
– Value: 1.2 V
• VDD_DDR (BUCK2) used to supply the DDR core and I/Os
– Value: 1.35 V
• VDD (BUCK3) used to supply the VDDA and VDD domains of the STM32MP157x
– Value: 3.3 V
• 3V3 (BUCK4) used to provide the 3.3 V to the different features available on the Discovery kit
– Value: 3.3 V
UM2637
Power supply
UM2637 - Rev 2 page 10/47
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