ST STM32MP157C-DK2 User manual

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

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

GPIO 40-pin

connector

GPIOs

Wi-Fi® 802.11 b/g/n

SDMMC

DDR3L DDR

LTDC HDMI®

RGMII Ethernet

DSI

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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