Page 1
UM2534
User manual
Discovery kits with STM32MP157 MPUs
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
Pictures are not contractual.
Figure 2. STM32MP157C-DK2 bottom view
UM2534 - Rev 1 - March 2019
For further information contact your local STMicroelectronics sales office.
www.st.com
Page 2
1 Features
• 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 DSI
◦ 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.
SM
®
UM2534
Features
UM2534 - Rev 1
page 2/47
Page 3
2 Ordering 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.
Order code Board reference Target STM32 Differentiating feature
STM32MP157A-DK1 • MB1272 STM32MP157AAC3 • Basic security
STM32MP157C-DK2
1. LCD extension board.
• MB1272
• MB1407
Table 1. List of available products
(1)
STM32MP157CAC3
Ordering information
• Secure Boot and cryptography
• LCD
• Wi‑Fi
• Bluetooth® Low Energy
®
UM2534
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.
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
DKZ
Table 2. Codification explanation
Security option:
• A: basic security
• C: Secure Boot and cryptography
Discovery kit configuration:
• DK1: basic
• DK2: LCD, Wi‑Fi®, and Bluetooth® Low Energy
Secure Boot and cryptography
LCD, Wi‑Fi®, and Bluetooth® Low Energy
UM2534 - Rev 1
The order code is mentioned on a sticker placed on the top side of the board.
page 3/47
Page 4
3 Development 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.
UM2534
Development environment
3.3
Note:
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
macOS® is a trademark of Apple Inc. registered in the U.S. and other countries.
®
UM2534 - Rev 1
page 4/47
Page 5
4 Technology 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
Page 6
5 Conventions
Table 3 provides the conventions used for the ON and OFF settings in the present document.
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
Table 3. ON/OFF convention
UM2534 - Rev 1
page 6/47
Page 7
6 Delivery 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
Page 8
7 Hardware layout and configuration
Figure 3. STM32MP157x-DKx hardware block diagram
5V_VIN
Type-C™ / Type-
C™ cable
STM32MP157x
UM2534
Hardware layout and configuration
STPMIC1
32 kHz crystal
24 MHz crystal
ST-LINK / V2.1
USB
LCD TFT
4" 480 X 800
Capacitive touch
screen multi points
USB Hub
USB Type- C™
I2C4
Power supply
I2C1
I2C4
I2C4
RTC
HSI
UART
SWD
DSI
I2C1
USB
Host
USB
DRP
GPIO
GPIO
UART
SDMMC
SAI
LTDC
RGMII
I2C1
I2C1
User interface
4 x LEDs
User interface
RESET buttons
Bluetooth
Wi-Fi® 802.11 b/g/n
®
amplifier
HDMI
Ethernet
Low
®
Energy V4.1
Audio DAC &
Stereo jack
line out / Mic_IN
UM2534 - Rev 1
microSD™ card
connector
DDR3L
SDMMC
DDR
Feature not available on STM32MP157A-DK1
GPIOs
GPIOs
Arduino™ Uno
connectors
GPIO 40-pin
connector
page 8/47
Page 9
Hardware layout and configuration
Figure 4. STM32MP157X-DKX PCB layout: TOP side
UM2534
UM2534 - Rev 1
page 9/47
Page 10
Figure 5. STM32MP157X-DKX PCB layout: BOTTOM side
UM2534
Embedded ST-LINK/V2-1
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 - Rev 1
page 10/47
Page 11
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
7.1.2 Drivers
Before connecting STM32MP157A-DK1 or STM32MP157C-DK2 to a Windows® (7, 8, or 10) PC via 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 case the STM32MP157A-DK1 or STM32MP157C-DK2 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.
7.1.3 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), it is recommended to visit periodically the www.st.com website before starting to
use the STM32MP157A-DK1 or STM32MP157C-DK2 Discovery kit to stay up-to-date with the latest firmware
version.
UM2534
Power supply
7.2 Power supply
7.2.1 5 V power supply
The STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits are 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 STM32MP157A-DK1
or STM32MP157C-DK2 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.
7.2.2 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
UM2534 - Rev 1
page 11/47
Page 12
• VREF_DDR used to supply the DDR reference voltage
– Value: 1.65 V
• VTT_DDR (LDO3) used to supply the termination resistors of the DDR
– Value: 1.65 V
• 1V8_Audio (LDO1) used to supply the digital/analog of the audio codec
– Value: 1.8 V
• 1V2_HDMI (LDO6) used to supply the digital core and analog part of the HDMI transceiver
– Value: 1.2 V
• 3V3_HDMI (LDO2) used to supply the I/Os of the HDMI transceiver
– Value: 3.3 V
• VDD_USB (LDO4) used to supply the USB phy of the STM32MP157x
– Value: 3.3 V
7.3 Clock sources
7.3.1 LSE clock references
The LSE clock references on the STM32MP157x microprocessor are provided by the external crystal X2:
• 32.768 kHz crystal from NDK : reference NX2012SA
UM2534
Clock sources
7.3.2 HSE clock references
The HSE clock references on the STM32MP157x microprocessor are provided by the external crystal X6:
• 24 MHz crystal from NDK : reference NX2016SA
7.4 Reset sources
The reset signal of STM32MP157A-DK1 and STM32MP157C-DK2 is active low. The internal PU forces the RST
signal to a high level.
The sources of reset are:
• Reset button B2 (black button)
• STPMIC1
• Embedded ST-LINK/V2.1
• Arduino™ connector CN16: pin 3, reset from the Arduino™ board
• STM32MP157x
7.5 Boot mode
7.5.1 Description
At startup, the boot source used by the internal bootROM is selected by the Boot pins. Table 5 describes the
configurations of the Boot pins.
Boot 0
0 0 0 Forced USB boot for flashing.
1 0 0 Not supported.
0 0 1 Reserved.
1. Pin Boot 1 is always tied to "0" by a pull-down resistor.
1 0 1 SD card on SDMMC1.
Boot 1
Table 5. Boot mode pins
(1)
Boot 2 Boot mode
UM2534 - Rev 1
Figure 7 shows the configurations of the boot-related switch SW1.
page 12/47
Page 13
7.6 Audio
7.6.1 Description
The CS42L51-CNZ codec is connected through an SAI interface to the STM32MP157x microcontroller. This
component supports the TDM feature of the SAI port. The TDM feature offers STM32MP157x the capability to
stream stereo audio channels.
UM2534
Audio
Figure 7. Boot-mode switch SW1
7.6.2 Operating voltage
The audio codec has two power supplies:
• VL, connected to the 3.3 V provided by the STPMIC1
• 1V8_AUDIO, dedicated 1.8 V source provided by the STPMIC1
7.6.3 Audio codec interface
Audio codec interfacing is performed through the SAI2 and I2C1 interfaces of the STM32MP157x.
Table 6 describes the I/O configuration of the audio codec interface.
I/O Configuration
PG9 PG9 used as AUDIO RESETN (active LOW)
PE0 PE0 used as SAI2_MCLKA
PF11 PF11 used as SAI2_SDB shared with GPIO expansion
PI7 PI7 used as SAI2_FSA shared with GPIO expansion
PI5 PI5 used as SAI2_SCKA shared with GPIO expansion
PI6 PI6 used as SAI2_SDA shared with GPIO expansion
PD12 PD12 used as I2C1_SCL shared between USB, DSI, HDMI
PF15 PB7 used as I2C1_SDA shared between USB, DSI, HDMI
Table 6. I/O configuration for the audio interface
7.6.4 Headphone outputs
The STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits can drive a stereo headphone. The
STM32MP157x sends the stereo audio channels to the codec via its SAI2 TDM port. The codec converts the
digital audio stream to stereo analog signals. It then boosts them for direct drive of the headphone connected to
the CN10 3.5 mm stereo jack receptacles on the board.
UM2534 - Rev 1
page 13/47
Page 14
The audio codec is set by an I2C bus. The address is a 7 bit address plus one bit for read/write (high for read, low
for write). The AD0 pin, connected to GND, gives the least-significant address bit. The address of the audio codec
is 0b1001010x: 0x94 to write and 0x95 to read.
7.6.5 Audio jack connector
Figure 8 shows the CN10 audio jack connector pinout.
UM2534
USB Host
Figure 8. CN10 audio jack connector pinout
Table 7 describes the CN10 audio jack connector pinout.
Pin
1 1 MIC_IN MICIN1 Microphone IN
2 2 GND GND GND
3 3 AOUTB AOUTB OUT_SPEAKER_RIGHT
4 4 AOUTA AOUTA OUT_SPEAKER_LEFT
7.6.6 I/O restriction
SAI2 is shared between the audio codec and the GPIO expansion connector. By default, the audio codec is
available because of solder bridges SB13, SB14, SB15, and SB16.
7.7 USB Host
7.7.1 Description
The STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits provide four USB Host ports (dual-USB
sockets CN1 and CN5) through the use of the USB2514B-AEZC USB Hub. The USB2514B-AEZC has a full
power management for each USB port: no I/O is needed from the STM32MP157x.
Table 7. CN10 audio jack connector pinout
Pin name Signal name Codec pin Function
UM2534 - Rev 1
page 14/47
Page 15
7.7.2 USB Host interface
Table 8 describes the I/O configuration for the USB Host interface.
I/O Configuration
PD12
PF15
USB_DP1 USB1_P
USB_DM1 USB1_N
1. I2C1 not connected by default (SB7 and SB8 OFF).
Figure 9 shows the CN1 and CN5 USB Type-A connector pinout.
Table 8. I/O configuration for the USB Host interface
PD12 used as I2C1_SCL shared between AUDIO, DSI, and HDMI
PF15 used as I2C1_SDA shared between AUDIO, DSI, and HDMI
Figure 9. CN1 and CN5 USB Type-A connector pinout
UM2534
USB Host
(1)
(1)
Table 9 describes CN1 and CN5 USB Host connector pinout.
Table 9. CN1 and CN5 USB Host connector pinout
Pin
T1 T1 VBUS VBUS
T2 T2 USB1CN25_N DM
T3 T3 USB1CN25_P DP
T4 T4 GND GND
B1 B1 VBUS VBUS
B2 B2 USB1CN25_N DM
B3 B3 USB1CN25_P DP
B4 B4 GND GND
T1 T1 VBUS VBUS
T2 T2 USB1CN26_N DM
Pin name Signal name Function
CN1
CN5
UM2534 - Rev 1
page 15/47
Page 16
USB Type-C™ HS
Pin Pin name Signal name Function
T3 T3 USB1CN26_P DP
T4 T4 GND GND
B1 B1 VBUS VBUS
B2 B2 USB1CN26_N DM
B3 B3 USB1CN26_P DP
B4 B4 GND GND
UM2534
7.8
USB Type-C™ HS
7.8.1 Description
The STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits support USB high-speed (HS) communication.
USB connector CN7 is a USB Type-C™ connector.
The STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits support USB Type-C™ Source mode.
7.8.2 Operating voltage
The STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits support 5 V USB voltage from 4.75 V to
5.25 V.
7.8.3 USB HS Source
When a USB Device connection to the CN7 USB Type-C™ connector of STM32MP157A-DK1 or STM32MP157CDK2 is detected, the Discovery kit starts behaving as a USB Host.
7.8.4
USB Type-C™ connector
Figure 10 shows the pinout of USB Type-C™ connector CN7.
A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12
GND TX1+ TX1- VBUS CC1 D+ D- SBU1 VBUS RX2- RX2+ GND
Figure 10. CN7 USB Type-C™ connector pinout
UM2534 - Rev 1
GND RX1+ RX1- VBUS SBU2 D- D+ CC2 VBUS TX2- TX2+ GND
B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1
Table 10 describes the pinout of USB Type-C™ connector CN7.
Table 10. CN7 USB Type-C™ connector pinout
Function STM32 pin Signal name
GND - GND GND A1 B12 GND GND - GND
TX1+ - - TX1+ A2 B11 RX1+ - - RX1+
TX1- - - TX1- A3 B10 RX1- - - RX1-
VBUS - - VBUS A4 B9 VBUS - - VBUS
CC1 - - CC1 A5 B8 SBU2 - - SBU2
Pin
name
Pin Pin
Pin
name
Signal name STM32 pin Function
page 16/47
Page 17
UM2534
microSD™ card
Function STM32 pin Signal name
D+ USB_DP2 USB_DP2 D+ A6 B7 D- USB_DM2 USB_DM2 D-
D- USB_DM2 USB_DM2 D- A7 B6 D+ USB_DP2 USB_DP2 D+
SBU1 - - SBU1 A8 B5 CC2 - - CC2
VBUS - - VBUS A9 B4 VBUS - - VBUS
RX2- - - RX2- A10 B3 TX2- - - TX2-
RX2+ - - RX2+ A11 B2 TX2+ - - TX2+
GND - GND GND A12 B1 GND GND - GND
7.9
microSD™ card
7.9.1 Description
The CN15 slot for the microSD™ card is routed to STM32MP157x SDIO port (SDMMC1). This interface is
compliant with SD Memory Card Specification Version 3.01: SDR50.
7.9.2 Operating voltage
The microSD™ card interface is only compatible with the 3.3 V voltage range: from 2.7 V to 3.6 V. All microSD
card types are supported (including SDHC and SDXC), but only Default and High-Speed modes (3 V) are
supported on STM32MP157A-DK1 and STM32MP157C-DK2. UHS-I modes (1.8 V) are not supported on these
Discovery kits.
Pin
name
Pin Pin
Pin
name
Signal name STM32 pin Function
™
7.9.3
microSD™ card interface
The microSD™ card interface is used in the four data lines D[0:3] with one clock (CLK), one command line (CMD),
and one card detection signal (CARD_DETECT).
The SDMMC1 is a bootable interface.
Table 11 describes the I/O configuration for the SDIO interface.
Table 11. I/O configuration for the SDIO interface
I/O Configuation
PB7 PB7 is connected to µSD_DETECT
PC8 PC8 is connected to SDMMC1_D0
PC9 PC9 is connected to SDMMC1_D1
PC10 PC10 is connected to SDMMC1_D2
PC11 PC11 is connected to SDMMC1_D3
PC12 PC12 is connected to SDMMC1_CLK
PD2 PD2 is connected to SDMMC1_CMD
Figure 11 shows the pinout of the microSD™ connector CN15.
UM2534 - Rev 1
page 17/47
Page 18
Figure 11. microSD™ card connector CN15
UM2534
LEDs
Table 12 describes pinout of the microSD™ connector CN15.
Pin
1 DAT2 SDMMC1_D2 PC10 SDIO.D2
2 DAT3_CD SDMMC1_D3 PC11 SDIO.D3
3 CMD SDMMC1_CMD PD2 SDIO.CMD
4 3V3 3V3 - VDD_SDCARD
5 CLK SDMMC1_CLK PC12 SDIO.CLK
6 VSS GND - GND
7 DAT0 SDMMC1_D0 PC8 SDIO.D0
8 DAT1 SDMMC1_D1 PC9 SDIO.D1
9 GND GND - GND
10 CARD_DETECT uSD_DETECT PB7 SDCARD_DETECT active LOW
7.10 LEDs
Table 12. CN15 microSD™ connector pinout
Pin name Signal name STM32 pin Function
7.10.1 Description
The LD2 LED turns green when the power cable is inserted in connector CN6.
Two general-purpose color LEDs (LD7 and LD8) are available as light indicators:
• The LD7 orange LED is used as STM32Cube examples verdict LED.
• The LD8 blue LED is used as Linux® Heartbeat LED, which is blinking as long as Linux® is alive on the
Cortex®-A.
The two user LEDs, the green LD5 and orange LD6 LEDs, are directly connected to the STM32MP157x.
UM2534 - Rev 1
page 18/47
Page 19
7.10.2 Operating voltage
All LEDs are driven by the I/O level; they are operating in the 3.3 V voltage range.
7.10.3 LED interface
Table 13 describes the I/O configuration of the LED interface.
I/O Configuration
PA14 PA14 is connected to the green LED LD4. Active Low.
PA13 PA13 is connected to the red LED LD6. Active Low.
PH7 PH7 is connected to the orange LED LD7. Active High.
PD11 PD11 is connected to the blue LED LD8. Active High.
7.11 Buttons
UM2534
Buttons
Table 13. I/O configuration of the LED interfaces
7.11.1 Description
The STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits provide four types of buttons:
• Wake-up button (B1)
– Allows the platform to be woken up from any low-power mode
– Connected to STPMIC1 PONKEY, which generates a wake up signal on STM32MP157x PA0
• Reset button (B2)
– Used to reset the Discovery kit
• USER1 button (B3)
– Used at boot time by U-Boot to enter the USB programming mode
• USER2 button (B4)
–
Used at boot time by U-Boot to enter the Android® Fastboot mode
7.11.2 I/O interface
Table 14 describes the I/O configuration for the physical user interface.
I/O Configuration
NRST Reset button (B2). Aactive Low.
- Wake-up button (B1). Connected to the PONKEYn pin of the STPMIC1
PA13 USER2 user button (B4)
PA14 USER1 user button (B3)
Table 14. I/O configuration for the physical user interface
7.12
HDMI
®
7.12.1 Description
The STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits offer an HDMI® connection for a TV monitor
through the use of the Lattice Semiconductor SiI9022A HDMI® transmitter.
UM2534 - Rev 1
page 19/47
Page 20
UM2534
HDMI®
The resolution is up to 720p60 (1280 × 720).
Input signals are 24 bits digital RGB (LTDC) for the video and I2S2 for the audio. Refer to the STM32MP157x
datasheet for details.
The control signals are I2C1, one interruption, and a dedicated reset.
The Consumer Electronic Control (CEC) is also available through the HDMI® transmitter (transmitter bypassed).
7.12.2
HDMI® I/O interface
Table 15 describes the I/O configuration for the HDMI® interface.
Table 15. I/O configuration for the HDMI® interface
I/O Configuration
PB6 PB6 is connected to HDMI_CEC.
PD9 PD9 is connected to LTDC_B0.
PG12 PG12 is connected to LTDC_B1.
PG10 PG10 is connected to LTDC_B2.
PD10 PD10 is connected to LTDC_B3.
PI4 PI4 is connected to LTDC_B4.
PA3 PA3 is connected to LTDC_B5.
PB8 PB8 is connected to LTDC_B6.
PD8 PD8 is connected to LTDC_B7.
PE5 PE5 is connected to LTDC_G0.
PE6 PE6 is connected to LTDC_G1.
PH13 PH13 is connected to LTDC_G2.
PH14 PH14 is connected to LTDC_G3.
PH15 PH15 is connected to LTDC_G4.
PI0 PI0 is connected to LTDC_G5.
PI1 PI1 is connected to LTDC_G6.
PI2 PI2 is connected to LTDC_G7.
PH2 PH2 is connected to LTDC_R0.
PH3 PH3 is connected to LTDC_R1.
PH8 PH8 is connected to LTDC_R2.
PH9 PH9 is connected to LTDC_R3.
PH10 PH10 is connected to LTDC_R4.
PC0 PC0 is connected to LTDC_R5.
PH12 PH12 is connected to LTDC_R6.
PE15 PE15 is connected to LTDC_R7.
PG7 PG7 is connected to LTDC_CLK.
PF10 PF10 is connected to LTDC_DE.
PI10 PI10 is connected to LTDC_HSYNC.
PI9 PI9 is connected to LTDC_VSYNC.
PA9 PA9 is connected to I2S2_CK.
PB9 PB9 is connected to I2S2_WS.
PI3 PI3 is connected to I2S2_SDO.
UM2534 - Rev 1
page 20/47
Page 21
I/O Configuration
PG1 PG1 is connected to HDMI_INT.
PD12 PD12 is connected to I2C1_SCL (I2C shared).
PF15 PF15 is connected to I2C1_SDA (I2C shared).
PA10 PA10 is connected to HDMI_NRST
Figure 12 shows the pinout of HDMI® connector CN9.
Figure 12. CN9 HDMI® connector pinout
UM2534
HDMI®
Table 16 describes the pinout of HDMI® connector CN9.
Table 16. CN9 HDMI® connector pinout
Pin
1 RX2+ TX2C_P
2 GND GND
3 RX2- TX2C_N
4 TX1+ TX1C_P
5 GND GND
6 RX1- TX1C_N
7 RX0+ TX0C_P
8 GND GND
9 RX0- TX0C_N
10 RXC+ TXCC_P
11 GND GND
12 RXC- TXCC_N
13 CEC CEC_A
14 - -
Pin name Signal name
UM2534 - Rev 1
page 21/47
Page 22
Wi‑Fi® and Bluetooth® Low Energy
Pin Pin name Signal name
15 SCL DSCL
16 SDA DSDA
17 GND GND
18 +5V 5V_VIN
19 DET HPD
UM2534
7.13
Wi‑Fi® and Bluetooth® Low Energy
7.13.1 Description
The STM32MP157C-DK2 Discovery kit support Wi‑Fi® 802.11b/g/n and Bluetooth® Low Energy (BLE) V4.1.
These functions are supported with the LBEE5KL1DX-883 MURATA module. This module is driven by a SDIO for
the Wi‑Fi® interface, and a USART for the Bluetooth®. The PCM format is used for audio data.
7.13.2 Operating voltage
The LBEE5KL1DX-883 module supports the 3.3 V voltage range.
7.13.3
Wi‑Fi® I/O interface
Table 17 describes the I/O configuration for the Wi‑Fi® interface.
I/O Configuration
PB4 PB4 is connected to SDMMC2_D3
PB3 PB3 is connected to SDMMC2_D2
PB15 PB15 is connected to SDMMC2_D1
PB14 PB14 is connected to SDMMC2_D0
PG6 PG6 is connected to SDMMC2_CMD
PE3 PE3 is connected to SDMMC2_CK
PH4 PH4 is connected to WL_REG_ON
PD0 PD0 is connected to WL_HOST_WAKE
Table 17. I/O configuration for the Wi‑Fi® interface
7.13.4
UM2534 - Rev 1
Bluetooth® Low Energy I/O interface
Table 18 describes the I/O configuration for the Bluetooth® Low Energy interface.
Table 18. I/O configuration for the Bluetooth® Low Energy interface
I/O Configuration
PD5 PD5 is connected to USART2_TX
PD6 PD6 is connected to USART2_RX
PD4 PD4 is connected to USART2_RTS
PD3 PD3 is connected to USART2_CTS
page 22/47
Page 23
I/O Configuration
PZ3 PZ3 is connected to BT_PCM_WS
PZ2 PZ2 is connected to BT_PCM_SDO
PZ1 PZ1 is connected to BT_PCM_SDI
PZ0 PZ0 is connected to BT_PCM_CK
PZ6 PZ6 is connected to BT_REG_ON
PH5 PH5 is connected to BT_HOST_WAKE
PZ7 PZ7 is connected to BT_DEV_WAKE
PI8 LP0_32
UM2534
MIPI DSISM LCD
7.14
MIPI DSISM LCD
The LCD is not provided with the STM32MP157A-DK1 Discovery kit.
7.14.1 Description
The 40-pin FCP connector CN4 is used to connect a TFT LCD module through the MIPI DSISM interface supported
by the MB1407 board. The touch panel is embedded in the LCD module.
The LCD module is composed of the FRD397B2509V2 TFT LCD module with an OTM8009A LCD driver. The 4"
LCD supports a resolution of 480 × 800 dots in 16.7 M colors (RGB). The touch-sensitive panel drive is performed
by the FT6236 self-capacitive controller.
Figure 13 shows the LCD connection to MB1407 and MB1272.
Figure 13. LCD connection to MB1407
7.14.2 Operating voltage
The LCD module power supply is connected to VDD_3V3.
UM2534 - Rev 1
page 23/47
Page 24
The touch panel power supply is connected to VDD_3V3.
The backlight of the LCD is driven by the STLD40DPUR circuit on the MB1407 board connected to VDD_3V3.
7.14.3 LCD interface
Table 19 describes the I/O configuration of the LCD and CTP interfaces.
I/O Configuration
DSI_D0P DSI_D0P is used as MIPI-DSI data Lane 0 positive.
DSI_D0N DSI_D0N is used as MIPI-DSI data Lane 0 negative.
DSI_D1P DSI_D1P is used as MIPI-DSI data Lane 1 positive.
DSI_D1N DSI_D1N is used as MIPI-DSI data Lane 0 negative.
DSI_CKP DSI_CKP is used as clock Lane positive.
DSI_DKN DSI_DKN is used as clock Lane negative.
PF2 PF2 is used LCD interrupt lane.
PA15
PD12 PD12 used as I2C1_SCL for the touch panel, shared between USB, AUDIO, HDMI.
1. Not used. In the default configuration, backlight control is done by the LCD driver.
PF15 PF15 used as I2C1_SDA for the touch panel, shared between USB, AUDIO, and HDMI.
Table 19. I/O configuration of the LCD and CTP interfaces
PA15 is used as DSI backlight control.
(1)
UM2534
MIPI DSISM LCD
Figure 14 shows the the pinout of LCD connector CN4.
Figure 14. CN4 LCD connector pinout
UM2534 - Rev 1
Table 20 describe the LCD interface and pinout of LCD connector CN4.
page 24/47
Page 25
Gigabit Ethernet
Table 20. LCD interface and CN4 connector pinout
Pin STM32 pin Signal name Function
1 - GND GND
2 DSI_D1N DSI_D1_N D1N
3 DSI_D1P DSI_D1_P D1P
4 - GND GND
5 DSI_CKN DSI_CK_N CKN
6 DSI_CKP DSI_CK_P CKP
7 - GND GND
8 DSI_D0N DSI_D0_N D0N
9 DSI_D0P DSI_D0_P D0P
10 - GND GND
11 PF0 I2C1_SCL SCL
12 PF14 I2C1_SDA SDA
13 - GND GND
14 - 3V3 3V3
15 - 3V3 3V3
16 - GND GND
17 PF2 LCD_INT INT
18 PC6 DSI_TE TE
19 PA15 LCD_BL_CTRL CTRL
20 PE4 DSI_RESET RESET
UM2534
7.15 Gigabit Ethernet
7.15.1 Description
The STM32MP157A-DK1 and STM32MP157C-DK2 Discovery kits provide a Gigabit reduced mediumindependent interface (RGMII).
The STM32MP157x requires an external physical interface device (PHY). The Realtek RTL8211F-CG is the PHY
on the Discovery kits. The PHY is connected to the physical LAN bus using 13 signals for RGMII. It can be
clocked using the 25 MHz from the STM32MP157x or from a crystal (X2). The default configuration is 25 MHz
from the X2 crystal.
LED LD3 is blinking to indicate the data transmission.
For more details about the PHY (such as clocking or configuration), refer to the datasheet of the Realtek
RTL8211F-CG.
7.15.2 Operating voltage
The Ethernet PHY is supplied directly with 3.3 V. It generates its own 1.05 V supply and digital/analog 3.3 V.
7.15.3 Ethernet interface
Table 21 describes the I/O configuration of the Ethernet interface.
UM2534 - Rev 1
page 25/47
Page 26
Table 21. I/O configuration of the Ethernet interface
I/O Configuration
PG0 PG0 is used as ETH_NRST active Low.
PA2 PA2 is used as ETH_MDIO.
PA6 PA6 is used as ETH_MDINT.
PC1 PB11 is used as ETH_MDC.
PA7 PA7 is used as ETH_RX_DV.
PC4 PB11 is used as ETH_RXD0.
PC5 PB11 is used as ETH_RXD1.
PB0 PB0 is used as ETH_RXD2.
PB1 PB1 is used as ETH_RXD3.
PB11 PB11 is used as ETH_TX_EN.
PG13 PG13 is used as ETH_TXD0.
PG14 PG14 is used as ETH_TXD1.
PC2 PB11 is used as ETH_TXD2.
PE2 PE2 is used as ETH_TXD3.
PA1 PA1 is used as ETH_RX_CLK.
PG4 PG4 is used as ETH_GTX_CLK.
PG5 PG5 is used as ETH_CLK125.
PB5 PB5 is used as ETH_CLK not the default configuration.
UM2534
Gigabit Ethernet
Figure 15 shows the pinout of Ethernet connector CN8.
Figure 15. CN8 Ethernet connector pinout
UM2534 - Rev 1
page 26/47
Page 27
Table 22. CN8 Ethernet connector pinout
Pin Pin name Function
1 TX1+
2 TX1-
3 TX2+
4 TX2-
5 CT1 Common connected to GND.
6 CT2 Common connected to GND.
7 TX3+
8 TX3-
9 TX4+
10 TX4-
11 GA Green LED anode.
12 GC Green LED cathode.
13 YA Yellow LED anode.
14 YC Yellow LED cathode.
15 GND GND.
16 GND GND.
First bidirectional pair to transmit and receive data.
Second bidirectional pair to transmit and receive data.
Third bidirectional pair to transmit and receive data.
Fourth bidirectional pair to transmit and receive data.
UM2534
Arduino™ connectors
7.16
Arduino™ connectors
7.16.1 Description
The Arduino™ Uno V3 connectors (CN13, CN14, CN16, and CN17) are available on the STM32MP157A-DK1 and
STM32MP157C-DK2 Discovery kits. Most shields designed for Arduino™ can fit with the Discovery kits to offer
flexibility in small form factor applications.
7.16.2 Operating voltage
The Arduino™ Uno V3 connectors support 5 V, 3.3 V, and VDD for I/O compatibility.
Caution:
7.16.3
Do not supply 3.3 V or 5 V from the Arduino™ shield. Supplying 3.3 V or 5 V from the Arduino™ shield could
damage the Discovery kit.
Arduino™ interface
Figure 16 shows the pinout of the Arduino™ connectors.
UM2534 - Rev 1
page 27/47
Page 28
Figure 16. Arduino™ connectors pinout
UM2534
Arduino™ connectors
UM2534 - Rev 1
Table 23 describes the I/O configuration of the Arduino™ interface.
Table 23. I/O configuration of the Arduino™ interface
I/O
PF14 - PF14 is used as ARD_A0: ADC1_IN0
PF13 - PF13 is used as ARD_A1: ADC1_IN1
ANA0 - ANA0 is used as ARD_A2: ADC1_IN6
ANA1 - ANA1 is used as ARD_A3: ADC1_IN2
PC3 SB24 ON PC3 is used as ARD_A4: ADC1_IN13 Default configuration
PF12 SB26 ON PF12 is used as ARD_A5: ADC1_IN14 Default configuration
PE7 - PE7 is used as ARD_D0: USART7_RX
PE8 - PE8 is used as ARD_D1: USART7_TX
PE1 - PE1 is used as ARD_D2: IO
PD14 - PD14 is used as ARD_D3: TIM4_CH3
PE10 - PE10 is used as ARD_D4: IO
HW Configuration
page 28/47
Page 29
I/O HW Configuration
PD15 - PD15 is used as ARD_D5: TIM4_CH4
PE9 - PE9 is used as ARD_D6: TIM4_CH1
PD1 - PD1 is used as ARD_D7: IO
PG3 - PG3 is used as ARD_D8: IO
PH6 - PH6 is used as ARD_D9: TIM12_CH1
PE11 - PE11 is used as ARD_D10: SPI4_NSS, TIM1_CH2
PE14 - PE14 is used as ARD_D11: SPI4_MOSI ,TIM1_CH4
PE13 - PE13 is used as ARD_D12: SPI4_MISO
PE12 - PE12 is used as ARD_D13: SPI4_SCK
PA12 - PA12 used as ARD_D14: I2C5_SDA shared with ARD_A4 (SB23 ON / SB24 OFF)
PA11 - PA11 used as ARD_D15: I2C5_SCL shared with ARD_A5 (SB25 ON / SB26 OFF)
Table 24 describes the pinout of the Arduino™ connectors.
UM2534
Arduino™ connectors
Connector
CN16
CN17
CN14
Table 24. Pinout of the Arduino™ connectors
Pin name Signal name STM32 pin Comment
1 NC - NC (reserved for test)
2 3V3 - IOREF 3V3
3 NRST NRST NRST
4 3V3 - 3V3
5 5V - 5V
6 GND - GND
7 GND - GND
8 VIN Not connected
1 A0 PF14 ADC1_IN0
2 A1 PF13 ADC1_IN1
3 A2 ANA0 ADC1_IN6
4 A3 ANA1 ADC1_IN2
5 A4 PC3/PA12 ADC1_IN13
6 A5 PF12/PA11
1 ARD_D0 PE7 USART7_RX
2 ARD_D1 PE8 USART7_TX
3 ARD_D2 PE1 IO
4 ARD_D3 PD14 TIM4_CH3
5 ARD_D4 PE10 IO
6 ARD_D5 PD15 TIM4_CH4
7 ARD_D6 PE9 TIM1_CH1
8 ARD_D7 PD1 IO
UM2534 - Rev 1
page 29/47
Page 30
Connector Pin name Signal name STM32 pin Comment
1 ARD_D8 PG3 IO
2 ARD_D9 PH6 TIM12_CH1
3 ARD_D10 PE11 SPI4_NSS and TIM1_CH2
4 ARD_D11 PE14 SPI4_MOSI and TIM1_CH4
CN13
5 ARD_D12 PE13 SPI4_MISO
6 ARD_D13 PE12 SPI4_SCK
7 GND - GND
8 VREFP - VREF+
9 ARD_D14 PA12 I2C5_SDA
10 ARD_D15 PA11 I2C5_SCL
7.17 GPIO expansion connectors
UM2534
GPIO expansion connectors
7.17.1 Description
• The GPIO pins can be used as GPIOs or alternate functions. The available alternate functions are listed in
Table 25. GPIO connectors pinout.
• Other functions such as I2C, UART, or FDCAN can be mapped on the GPIO connectors, for instance using
the STM32CubeMX tool.
• The GPIO expansion connector CN2 offers Raspberry Pi® shields capability.
7.17.2 GPIO expansion connector interface
Figure 17 shows the pinout of the GPIO connectors.
UM2534 - Rev 1
page 30/47
Page 31
Figure 17. GPIO connectors
UM2534
GPIO expansion connectors
Table 25 describes the pinout of the GPIO connectors.
Table 25. GPIO connectors pinout
Function
3V3 - 1 2 - 5V
GPIO2 / I2C5_SDA PA12 3 4 - 5V
GPIO3 / I2C5_SCL PA11 5 6 - GND
GPIO4 / MCO1 PA8 7 8 PB10 GPIO14 / USART3_TX
GND - 9 10 PB12 GPIO15 / USART3_RX
GPIO17 / USART3_RTS PG8 11 12 PI5 GPIO18 / SAI2_SCKA
GPIO27 / SDMMC3_D3 PD7 13 14 - GND
GPIO22 / SDMMC3_CK PG15 15 16 PF1 GPIO23 / SDMMC3_CMD
3V3 - 17 18 PF0 GPIO24 / SDMMC3_D0
GPIO10 / SPI5_MOSI PF9 19 20 - GND
GPIO9 / SPI5_MISO PF8 21 22 PF4 GPIO25 / SDMMC3_D1
GPIO11 / SPI5_SCK PF7 23 24 PF6 GPIO8 / SPI5_NSS
GND - 25 26 PF3 GPIO7
I2C1_SDA PF15 27 28 PD12 I2C1_SCL
GPIO5 / MCO2 PG2 29 30 - GND
STM32 pin Pin Pin STM32 pin Function
UM2534 - Rev 1
page 31/47
Page 32
UM2534
GPIO expansion connectors
Function STM32 pin Pin Pin STM32 pin Function
GPIO6 / TIM5_CH2 PH11 31 32 PD13 GPIO12 / TIM4_CH2
GPIO13 /TIM3_CH2 PC7 33 34 - GND
GPIO19 / SAI2_FSA PI7 35 36 PB13 GPIO16 / USART3_CTS
GPIO26 / SDMMC3_D2 PF5 37 38 PI6 GPIO20 / SAI2_SDA
GND - 39 40 PF11 GPIO21 / SAI2_SDB
UM2534 - Rev 1
page 32/47
Page 33
STM32MP157A-DK1 and STM32MP157C-DK2 I/O assignment
8 STM32MP157A-DK1 and STM32MP157C-DK2 I/O assignment
Table 26. Discovery kit I/O assignment
Ball Pin Assignment
A2 PH5 BT_HOST_WAKE
C2 PH10 LTDC_R4
B2 PH12 LTDC_R6
D1 PH13 LTDC_G2
C3 PH14 LTDC_G3
B1 PH15 LTDC_G4
C1 PI0 LTDC_G5
E3 PI1 LTDC_G6
E2 PI2 LTDC_G7
E1 PI3 HDMI_I2S2_MOSI
E4 PI4 LTDC_B4
F3 PI5 SAI2_SCKA
F4 PI6 SAI2_SDA
F2 PI7 SAI2_FSA
G1 PZ1 BT_PCM_1_SDI
G4 PZ3 BT_PCM_1_WS
H4 PI9 LTDC_VSYNC
G3 PZ0 BT_PCM_1_CK
J4 PZ2 BT_PCM_1_SDO
G2 PZ4 PMIC_I2C4_SCL
K4 PG12 LTDC_B1
H2 PZ5 PMIC_I2C4_SDA
H1 PZ6 BT_REG_ON
J3 PZ7 BT_DEV_WAKE
D2 PD6 BT_USART2_RX
L3 PD14 ARDUINO_D3_TIM4_CH3
J2 PD15 ARDUINO_D5_TIM4_CH4
K3 PD8 LTDC_B7
K1 PD9 LTDC_B0
L4 PI8 LPO_32OUT2
K2 PC13 PC13_ANTI_TAMP_PMIC_WAKEUP
N2 PA13 LED1_GPIO
T2 PA14 LED2_GPIO
P4 PI11 PI11_STUSB1600_IRQN_WKUP5
T1 PI10 LTDC_HSYNC
W4 PH7 LED_Y_GPIO
U1 PF3 GPIO7_GPIO
UM2534
UM2534 - Rev 1
page 33/47
Page 34
STM32MP157A-DK1 and STM32MP157C-DK2 I/O assignment
Ball Pin Assignment
W2 PC3 ARDUINO_A4_ADC1_IN13
T4 PG3 ARDUINO_D8_GPIO
Y1 PE2 ETH_TXD3
U2 PA3 LTDC_B5
Y2 PC2 ETH_TXD2
V2 PG2 GPIO5_MCO2
AA1 PG14 ETH_TXD1
W1 PG1 HDMI_INT_GPIO
AA2 PG13 ETH_TXD0
U3 ANA0 ARDUINO_A0_ADC1_IN0
AB3 PA0 PA0_WKUP_PMIC_INT
U4 ANA1 ARDUINO_A1_ADC1_IN1
AA4 PA1 ETH_REF_CLK
V3 PA5 TypeC_Power_CC2_ADC1_IN19
V4 PA4 TypeC_Power_CC1_ADC1_IN18
AB1 PB11 ETH_TX_EN
AB2 PG4 ETH_GTX_CLK
AC3 PA2 ETH_MDIO
AA6 PC1 ETH_MDC
Y6 PG5 ETH_CLK125
AA3 PH3 LTDC_R1
AB6 PB0 ETH_RXD2
Y4 PF15 IDSD_BOARD_I2C1_SDA
AA7 PB1 ETH_RXD3
AC4 PF14 ARDUINO_A2_ADC2_IN6
Y5 PF13 ARDUINO_A3_ADC2_IN2
AB4 PH2 LTDC_R0
AB7 PC5 ETH_RXD1
AC7 PC4 ETH_RXD0
Y9 PF12 ARDUINO_A5_ADC1_IN6
Y10 PF11 SAI2_SD_B
AB8 PA7 ETH_RXDV
AC8 PA6 ETH_MDINT
AB5 PC0 LTDC_R5
Y3 PB10 GPIO14_USART3_TX
AC5 PB12 GPIO15_USART3_RX
AA10 PB13 GPIO16_USART3_CTS_NSS
Y8 PB5 ETH_ETH_CLK
Y7 PG11 STLK_UART4_TX
Y11 PH6 ARDUINO_D9_TIM12_CH1
UM2534
UM2534 - Rev 1
page 34/47
Page 35
STM32MP157A-DK1 and STM32MP157C-DK2 I/O assignment
Ball Pin Assignment
AB10 PB8 LTDC_B6
AB9 PG8 GPIO17_USART3_RTS
AB11 PG10 LTDC_B2
AA9 PE9 ARDUINO_D6_TIM1_CH1
AA11 PE7 ARDUINO_D0_UART7_RX
AC10 PD11 LED_B_GPIO
AB12 PF7 GPIO11_SPI5_SCK
AC11 PF8 GPIO9_SPI5_MISO
Y12 PF10 LTDC_DE
AA13 PF6 GPIO8_SPI5_NSS
Y18 PD12 I2C1_SCL
AA14 PF9 GPIO10_SPI5_MOSI
AC14 PG7 LTDC_CLK
Y14 PB6 HDMI_CEC
AC13 PE8 ARDUINO_D1_UART7_TX
Y15 PE10 ARDUINO_D4_GPIO
Y16 PB2 STLK_UART4_RX
AA19 PD13 GPIO12_TIM4_CH2
Y13 PG9 AUDIO_RST
AB19 PA12 ARDUINO_D14__GPIO3_I2C5_SDA
AA18 PA11 ARDUINO_D15__GPIO2_I2C5_SCL
D16 PC11 uSD_SDMMC1_D3
D19 PE4 DSI_RESET_GPIO
D18 PC8 uSD_SDMMC1_D0
D15 PC10 uSD_SDMMC1_D2
B13 PB4 WLAN_SDMMC2_D3
D17 PC9 uSD_SDMMC1_D1
B11 PC7 GPIO13_TIM3_CH2
B14 PC6 DSI_TE
A14 PF2 DSI_LCD_INT_GPIO
D12 PD2 uSD_SDMMC1_CMD
A13 PA8 GPIO4_MCO1
C13 PB14 WLAN_SDMMC2_D0
D13 PC12 uSD_SDMMC1_CK
B12 PB15 WLAN_SDMMC2_D1
C11 PE5 LTDC_G0
A11 PB3 WLAN_SDMMC2_D2
A10 PG6 WLAN_SDMMC2_CMD
D14 PD3 BT_USART2_CTS_NSS
B10 PB9 HDMI_I2S2_NSS/2_WS
UM2534
UM2534 - Rev 1
page 35/47
Page 36
STM32MP157A-DK1 and STM32MP157C-DK2 I/O assignment
Ball Pin Assignment
C19 PA15 DSI_LCD_BLCTRL_TIM2_CH1/2_ETR
A8 PA9 HDMI_I2S2_SCK/2_CK
D11 PB7 uSD_detect_GPIO
B9 PD1 ARDUINO_D7_GPIO
B8 PD0 WLAN_HOST_WAKE_GPIO
C9 PE3 WLAN_SDMMC2_CK
A7 PD5 BT_USART2_TX
D10 PD7 GPIO27_SDMMC3_D3
B7 PG15 GPIO22_SDMMC3_CK
C10 PE6 LTDC_G1
D8 PF0 GPIO24_SDMMC3_D0
A5 PF1 GPIO23_SDMMC3_CMD
D9 PF4 GPIO25_SDMMC3_D1
B6 PD4 BT_USART2_RTS
D7 PF5 GPIO26_SDMMC3_D2
B5 PD10 LTDC_B3
D6 PE0 SAI2_MCLK_A
C8 PE1 ARDUINO_D2_GPIO
D5 PH8 LTDC_R2
C5 PH9 LTDC_R3
A4 PE11 ARDUINO_D10_SPI4_NSS/TIM1_CH2
B4 PE12 ARDUINO_D13_SPI4_SCK
A3 PE13 ARDUINO_D12_SPI4_MISO
C4 PH11 GPIO6_TIM5_CH2
C6 PE14 ARDUINO_D11_SPI4_MOSI/TIM1_CH4
D3 PE15 LTDC_R7
B3 PH4 WLAN_REG_ON_GPIO
UM2534
UM2534 - Rev 1
page 36/47
Page 37
UM2534
Federal Communications Commission (FCC) and Industry Canada (IC) Compliance Statements
9 Federal Communications Commission (FCC) and Industry Canada
(IC) Compliance Statements
Identification of products: STM32MP157A-DK1 and STM32MP157C-DK2
Part 15.19
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
Part 15.21
Any changes or modifications to this equipment not expressly approved by STMicroelectronics may cause
harmful interference and void the user's authority to operate this equipment.
Part 15.105
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct the interference at his own expense.
Note:
Use only shielded cables for USB, Ethernet, HDMI® cables. Use added ferrite clamp on audio cable (one turn).
9.1
Responsible party (in the USA)
Terry Blanchard
Americas Region Legal | Group Vice President and Regional Legal Counsel, The Americas
STMicroelectronics, Inc.
750 Canyon Drive | Suite 300 | Coppell, Texas 75019
USA
Industry Canada ICES-003
CAN ICES-3 (A) / NMB-3 (A)
Additional FCC and IC Compliance Statements for STM32MP157C-DK2
Contains FCC ID: VPYLB1DX
Contains IC:772C-LB1DX
ISED Licence-Exempt Radio Apparatus
This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic
Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause undesired operation of the
device.
UM2534 - Rev 1
Appareils radio exempts de licence ISDE
L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation,
Sciences et Développement économique Canada applicables aux appareils radio exempts de licence.
L’exploitation est autorisée aux deux conditions suivantes :
1. L’appareil ne doit pas produire de brouillage ;
page 37/47
Page 38
UM2534
Additional FCC and IC Compliance Statements for STM32MP157C-DK2
2. L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en
compromettre le fonctionnement.
Radio Frequency (RF) Exposure Compliance of Radiocommunication Apparatus
To satisfy FCC and IC RF Exposure requirements for mobile devices, a separation distance of 20 cm or more
should be maintained between the antenna of this device and persons during operation. To ensure compliance,
operation at closer than this distance is not recommended. This transmitter must not be co-located or operating in
conjunction with any other antenna or transmitter.
Pour satisfaire aux exigences FCC et IC concernant l'exposition aux champs RF pour les appareils mobile, une
distance de séparation de 20 cm ou plus doit être maintenu entre l'antenne de ce dispositif et les personnes
pendant le fonctionnement. Pour assurer la conformité, il est déconseillé d'utiliser cet équipement à une distance
inférieure. Cet émetteur ne doit pas être co-situé ou fonctionner conjointement avec une autre antenne ou un
autre émetteur.
UM2534 - Rev 1
page 38/47
Page 39
10 CE conformity
10.1 Warning
EN 55032 / CISPR32 (2012) Class A product
Warning: this device is compliant with Class A of EN55032 / CISPR32. In a residential environment, this
equipment may cause radio interference.
UM2534
CE conformity
10.2
Simplified declaration of conformity
Hereby, STMicroelectronics declares that the radio equipment types STM32MP157A-DK1 and STM32MP157CDK2 are in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available on
the next page.
UM2534 - Rev 1
page 39/47
Page 40
UM2534
Simplified declaration of conformity
UM2534 - Rev 1
page 40/47
Page 41
Revision history
UM2534
Table 27. Document revision history
Date Version Changes
25-Mar-2019 1 Initial release.
UM2534 - Rev 1
page 41/47
Page 42
UM2534
Contents
Contents
1 Features...........................................................................2
2 Ordering information ..............................................................3
2.1 Product marking ...............................................................3
2.2 Codification ...................................................................3
3 Development environment .........................................................4
3.1 Demonstration software .........................................................4
3.2 Development toolchains.........................................................4
3.3 System requirements ...........................................................4
4 Technology partners...............................................................5
5 Conventions .......................................................................6
6 Delivery recommendations ........................................................7
7 Hardware layout and configuration.................................................8
7.1 Embedded ST-LINK/V2-1.......................................................10
7.1.1 Description ............................................................10
7.1.2 Drivers ............................................................... 11
7.1.3 ST-LINK/V2-1 firmware upgrade ............................................11
7.2 Power supply .................................................................11
7.2.1 5 V power supply .......................................................11
7.2.2 STPMIC1 power supply ..................................................11
7.3 Clock sources ................................................................12
7.3.1 LSE clock references ....................................................12
7.3.2 HSE clock references ....................................................12
7.4 Reset sources ................................................................12
7.5 Boot mode ...................................................................12
7.5.1 Description ............................................................12
7.6 Audio........................................................................13
7.6.1 Description ............................................................13
7.6.2 Operating voltage .......................................................13
7.6.3 Audio codec interface ....................................................13
UM2534 - Rev 1
page 42/47
Page 43
UM2534
Contents
7.6.4 Headphone outputs......................................................13
7.6.5 Audio jack connector.....................................................14
7.6.6 I/O restriction...........................................................14
7.7 USB Host ....................................................................14
7.7.1 Description ............................................................14
7.7.2 USB Host interface ......................................................14
7.8 USB Type-C™ HS .............................................................16
7.8.1 Description ............................................................16
7.8.2 Operating voltage .......................................................16
7.8.3 USB HS Source ........................................................16
7.8.4 USB Type-C™ connector..................................................16
7.9 microSD™ card ...............................................................17
7.9.1 Description ............................................................17
7.9.2 Operating voltage .......................................................17
7.9.3 microSD™ card interface..................................................17
7.10 LEDs ........................................................................18
7.10.1 Description ............................................................18
7.10.2 Operating voltage .......................................................19
7.10.3 LED interface ..........................................................19
7.11 Buttons ......................................................................19
7.11.1 Description ............................................................19
7.11.2 I/O interface ...........................................................19
7.12 HDMI®......................................................................19
7.12.1 Description ............................................................19
7.12.2 HDMI® I/O interface .....................................................20
7.13 Wi‑Fi® and Bluetooth® Low Energy ..............................................22
7.13.1 Description ............................................................22
7.13.2 Operating voltage .......................................................22
7.13.3 Wi‑Fi® I/O interface ......................................................22
7.13.4 Bluetooth® Low Energy I/O interface.........................................22
7.14 MIPI DSISM LCD ...............................................................23
UM2534 - Rev 1
page 43/47
Page 44
UM2534
Contents
7.14.1 Description ............................................................23
7.14.2 Operating voltage .......................................................23
7.14.3 LCD interface ..........................................................24
7.15 Gigabit Ethernet ..............................................................25
7.15.1 Description ............................................................25
7.15.2 Operating voltage .......................................................25
7.15.3 Ethernet interface .......................................................25
7.16 Arduino™ connectors ..........................................................27
7.16.1 Description ............................................................27
7.16.2 Operating voltage .......................................................27
7.16.3 Arduino™ interface ......................................................27
7.17 GPIO expansion connectors ....................................................30
7.17.1 Description ............................................................30
7.17.2 GPIO expansion connector interface.........................................30
8 STM32MP157A-DK1 and STM32MP157C-DK2 I/O assignment......................33
9 Federal Communications Commission (FCC) and Industry Canada (IC) Compliance
Statements .......................................................................37
9.1 Additional FCC and IC Compliance Statements for STM32MP157C-DK2 ..............37
10 CE conformity ....................................................................39
10.1 Warning .....................................................................39
10.2 Simplified declaration of conformity ..............................................39
Revision history .......................................................................41
Contents ..............................................................................42
List of tables ..........................................................................45
List of figures..........................................................................46
UM2534 - Rev 1
page 44/47
Page 45
UM2534
List of tables
List of tables
Table 1. List of available products...............................................................3
Table 2. Codification explanation ...............................................................3
Table 3. ON/OFF convention ..................................................................6
Table 4. CN11 ST-LINK USB Micro-B connector pinout ............................................... 11
Table 5. Boot mode pins .................................................................... 12
Table 6. I/O configuration for the audio interface.................................................... 13
Table 7. CN10 audio jack connector pinout .......................................................14
Table 8. I/O configuration for the USB Host interface ................................................ 15
Table 9. CN1 and CN5 USB Host connector pinout.................................................. 15
Table 10.
Table 11. I/O configuration for the SDIO interface.................................................... 17
Table 12.
Table 13. I/O configuration of the LED interfaces .................................................... 19
Table 14. I/O configuration for the physical user interface .............................................. 19
Table 15.
Table 16.
Table 17.
Table 18.
Table 19. I/O configuration of the LCD and CTP interfaces ............................................. 24
Table 20. LCD interface and CN4 connector pinout .................................................. 25
Table 21. I/O configuration of the Ethernet interface .................................................. 26
Table 22. CN8 Ethernet connector pinout ......................................................... 27
Table 23. I/O configuration of the Arduino™ interface ................................................. 28
Table 24. Pinout of the Arduino™ connectors ....................................................... 29
Table 25. GPIO connectors pinout .............................................................. 31
Table 26. Discovery kit I/O assignment ........................................................... 33
Table 27. Document revision history ............................................................. 41
CN7 USB Type-C™ connector pinout ..................................................... 16
CN15 microSD™ connector pinout ....................................................... 18
I/O configuration for the HDMI® interface .................................................. 20
CN9 HDMI® connector pinout .......................................................... 21
I/O configuration for the Wi‑Fi® interface ................................................... 22
I/O configuration for the Bluetooth® Low Energy interface ....................................... 22
UM2534 - Rev 1
page 45/47
Page 46
UM2534
List of figures
List of figures
Figure 1. STM32MP157C-DK2 top view .........................................................1
Figure 2. STM32MP157C-DK2 bottom view....................................................... 1
Figure 3. STM32MP157x-DKx hardware block diagram...............................................8
Figure 4. STM32MP157X-DKX PCB layout: TOP side................................................9
Figure 5. STM32MP157X-DKX PCB layout: BOTTOM side ........................................... 10
Figure 6. CN11 ST-LINK USB Micro-B connector pinout ............................................. 10
Figure 7. Boot-mode switch SW1 ............................................................. 13
Figure 8. CN10 audio jack connector pinout...................................................... 14
Figure 9. CN1 and CN5 USB Type-A connector pinout .............................................. 15
Figure 10.
Figure 11.
Figure 12.
Figure 13. LCD connection to MB1407 .......................................................... 23
Figure 14. CN4 LCD connector pinout........................................................... 24
Figure 15. CN8 Ethernet connector pinout ........................................................ 26
Figure 16.
Figure 17. GPIO connectors ................................................................. 31
CN7 USB Type-C™ connector pinout.................................................... 16
microSD™ card connector CN15 ....................................................... 18
CN9 HDMI® connector pinout ......................................................... 21
Arduino™ connectors pinout .......................................................... 28
UM2534 - Rev 1
page 46/47
Page 47
UM2534
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST
products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST
products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of
Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service
names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2019 STMicroelectronics – All rights reserved
UM2534 - Rev 1
page 47/47
Loading...