ST STM32MP157C-DK2 Manual de usuario
Introduction
The STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits 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 of STM32MP1 Series microprocessors to allow users
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 STM32MP157C-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. STM32MP157C-DK2 top view Figure 2. STM32MP157C-DK2 bottom view
Pictures are not contractual.
Discovery kits with STM32MP157 MPUs
UM2534
User manual
UM2534 - Rev 1 - March 2019
For further information contact your local STMicroelectronics sales office.
www.st.com
1Features
• Common features
– STM32MP157 Arm®-based dual Cortex®-A7 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® shields 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™, Keil®, GCC-
based IDEs
• 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.
UM2534
Features
UM2534 - Rev 1 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
STM32MP157A-DK1 • MB1272 STM32MP157AAC3 • Basic security
STM32MP157C-DK2 • MB1272
• MB1407(1) STM32MP157CAC3
• Secure Boot and cryptography
• LCD
• Wi‑Fi®
• Bluetooth® Low Energy
1. LCD extension board.
2.1 Product marking
Evaluation tools marked as “ES” or “E” are not yet qualified and therefore not ready to be used as reference
design or in production. Any consequences deriving from such usage will not be at ST charge. In no event, ST will
be liable for any customer usage of these engineering sample tools as reference design or in production.
“E” or “ES” marking examples of location:
• On the targeted STM32 that is soldered on the board (for illustration of STM32 marking, refer to the STM32
datasheet “Package information” paragraph at the www.st.com website).
• Next to the evaluation tool ordering part number that is stuck or silk-screen printed on the board.
2.2 Codification
The meaning of the codification is explained in Table 2.
Table 2. Codification explanation
STM32MP1XXY-DKZ Description Example: STM32MP157C-DK2
STM32MP1 MPU series in STM32 Arm Cortex MPUs STM32MP1 Series
XX MPU product line in the series STM32MP157 line
Y
Security option:
• A: basic security
• C: Secure Boot and cryptography
Secure Boot and cryptography
DKZ
Discovery kit configuration:
• DK1: basic
• DK2: LCD, Wi‑Fi®, and Bluetooth® Low Energy
LCD, Wi‑Fi®, and Bluetooth® Low Energy
The order code is mentioned on a sticker placed on the top side of the board.
UM2534
Ordering information
UM2534 - Rev 1 page 3/47
3Development environment
3.1 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.
3.2 Development toolchains
• Keil® MDK-ARM (see note)
• IAR™ EWARM (see note)
• GCC-based IDEs
• GCC
Note: On Windows® only.
3.3 System requirements
• Windows® OS (7, 8 and 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 to Micro-B cable
Note: macOS® is a trademark of Apple Inc. registered in the U.S. and other countries.
UM2534
Development environment
UM2534 - Rev 1 page 4/47
4Technology partners
MICRON
• 4-Gbit DDR3L, 16 bits, part number MT41K256M16TW-107-P-V00H
MURATA
• Wi‑Fi® 802.11b/g/n + Bluetooth® Low Energy 4.1, part number LBEE5KL1DX-883
UM2534
Technology partners
UM2534 - Rev 1 page 5/47
5Conventions
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 should be 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
UM2534
Conventions
UM2534 - Rev 1 page 6/47
6Delivery recommendations
Before the first use, make sure that no damage occurred to the board during shipment and no socketed
components are not firmly fixed in their sockets or loose in the plastic bag.
UM2534
Delivery recommendations
UM2534 - Rev 1 page 7/47
7Hardware layout and configuration
Figure 3. STM32MP157x-DKx hardware block diagram
STM32MP157x
RTC
SWD
32 kHz crystal
ST-LINK / V2.1
USB
Capacitive touch
screen 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
4 x 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 STM32MP157A-DK1
UM2534
Hardware layout and configuration
UM2534 - Rev 1 page 8/47
Figure 4. STM32MP157X-DKX PCB layout: TOP side
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Hardware layout and configuration
UM2534 - Rev 1 page 9/47
Figure 5. STM32MP157X-DKX PCB layout: BOTTOM side
7.1 Embedded ST-LINK/V2-1
7.1.1 Description
To debug the onboard STM32 MPU, the ST-LINK/V2.1 programming and debugging tool is integrated in the
STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits. 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). It is
recommended to power supply 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
UM2534
Embedded ST-LINK/V2-1
UM2534 - Rev 1 page 10/47
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