ST STM32H745I-DISCO Manual de usuario

Introduction

The STM32H745I-DISCO and STM32H750B-DK Discovery kits are complete demonstration and development platforms for

STMicroelectronics Arm® Cortex®-M7 and -M4 dual-core-based STM32H745XI (STM32H745XIH6 order code) and

STM32H750XB (STM32H750XBH6 order code) microcontrollers. Both devices feature four I2Cs, six SPIs with three multiplexed

simplex I2Ss, two SD/SDIO/DMMC interfaces, four USARTs, four UARTs, one LPUART, two CAN controllers, three 16-bit ADCs,

two 12-bit DACs, four SAIs, 8- to 14-bit digital camera interface, 1 Mbyte (STM32H745XIH6) or 128 Kbytes (STM32H750XBH6)

of internal SRAM and 2 Mbytes of Flash memory, a USB OTG HS and a USB OTG FS, an Ethernet MAC interface, an FMC

interface, a Quad-SPI interface, and SWD debugging support. The STM32H745I-DISCO and STM32H750B-DK Discovery kits

enable users to quickly get started and develop applications.

In addition, the STM32H745I-DISCO and STM32H750B-DK, shown in Figure 1 and Figure 2, can be used as a reference

design for user application prototyping before porting to the final product.

The full range of hardware features available on the board helps users improve application development by an evaluation of

almost all peripherals (such as USB OTG FS, Ethernet 10/100Mb/s, eMMC, USART, SAI Audio DAC stereo with audio jack

input and output, MEMS digital microphone, SDRAM, Quad-SPI Flash memory, and RGB LCD interface with capacitive multi-

touch panel). ARDUINO® Uno V3 connectors provide easy connection to extension shields or daughterboards for specific

applications.

STLINK-V3E is integrated into the board, as an embedded in-circuit debugger and programmer for the STM32 microcontroller

and the USB Virtual COM port bridge.

The STM32H745I-DISCO and STM32H750B-DK boards come with the STM32CubeH7 MCU package, which provides an

STM32 comprehensive software HAL library as well as various software examples.

Figure 1. STM32H745I-DISCO and STM32H750B-DK

boards (top view)

Figure 2. STM32H745I-DISCO and STM32H750B-DK

boards (bottom view)

Pictures are not contractual. PCB colors may differ.

Discovery kits with STM32H745XI and STM32H750XB microcontrollers

UM2488

User manual

UM2488 - Rev 4 - September 2019

For further information contact your local STMicroelectronics sales office. www.st.com

1Features

• Arm® Cortex® core-based microcontroller with 2 Mbytes (STM32H745XIH6) or 128 Kbytes

(STM32H750XBH6) of Flash memory and 1 Mbyte of RAM, in TFBGA240+25 package

• 4.3” RGB interface LCD with touch panel connector

• Ethernet compliant with IEEE-802.3-2002, and PoE

• USB OTG FS with Micro-AB connector

• SAI audio codec

• One ST-MEMS digital microphone

• 2 x 512-Mbit Quad-SPI NOR Flash memory

• 128-Mbit SDRAM

• 4-Gbyte on-board eMMC

• 1 user and reset push-button

• Fanout daughterboard

• 2 x FDCANs

• Board connectors:

– USB FS Micro-AB connectors

– ST-LINK Micro-B USB connector

– USB power Micro-B connector

– Ethernet RJ45

– Stereo headset jack including analog microphone input

– Audio header for external speakers

– Tag-Connect (TAG) 10-pin footprint

– Arm® Cortex® 10-pin 1.27 mm pitch debug connector over STDC14 footprint

– ARDUINO® Uno V3 expansion connectors

– STMod+

• Flexible power-supply options:

– STLINK-V3 USB connector, USB FS connector

– 5 V delivered by RJ45 (Power over Ethernet)

– 5 V delivered by ARDUINO® or external connector

– USB charger

– USB power

• On-board STLINK-V3E debugger/programmer with USB re-enumeration capability: mass storage, Virtual

COM port, and debug port

• Support of a wide choice of Integrated Development Environments (IDEs) including IAR™, Keil® and GCC-

based IDEs

Note: Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.

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Features

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2Ordering information

To order the STM32H745I-DISCO and STM32H750B-DK Discovery kits, 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

STM32H745I-DISCO MB1381 STM32H745XIH6U

STM32H750B-DK STM32H750XBH6U

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.

Some boards feature a specific STM32 device version, which allows the operation of any bundled commercial

stack/library available. This STM32 device shows a "U" marking option at the end of the standard part number

and is not available for sales.

In order to use the same commercial stack in his application, a developer may need to purchase a part number

specific to this stack/library. The price of those part numbers includes the stack/library royalties.

2.2 Codification

The meaning of the codification is explained in Table 2.

Table 2. Codification explanation

STM32H7XXY-DISCO

STM32H7XXY-DK Description Example: STM32H745I-DISCO

STM32H7 MCU series in STM32 Arm Cortex MCUs STM32H7 Series

XX MCU product line in the series STM32H745

STM32 Flash memory size:

• B for 128 Kbytes

• I for 2 Mbytes

2 Mbytes

DISCO / DK Discovery kit Discovery kit

The order code is mentioned on a sticker placed on the top side of the board.

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Ordering information

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3Development environment

3.1 System requirements

• Windows® OS (7, 8 and 10), Linux® 64-bit, or macOS®

• USB Type-A to Micro-B cable

Note: macOS® is a trademark of Apple Inc. registered in the U.S. and other countries.

All other trademarks are the property of their respective owners.

3.2 Development toolchains

• Keil® MDK-ARM (see note)

• IAR™ EWARM (see note)

• GCC-based IDEs

Note: On Windows® only.

3.3 Demonstration software

The demonstration software, included in the STM32Cube MCU Package corresponding to the on-board

microcontroller, is preloaded in the STM32 Flash memory 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.

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Development environment

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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 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

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Conventions

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5Delivery 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.

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Delivery recommendations

UM2488 - Rev 4 page 6/55

6Hardware layout and configuration

The STM32H745I-DISCO and STM32H750B-DK Discovery kits are designed around the STM32H745XIH6 and

STM32H750XBH6 microcontrollers, respectively. Both microcontrollers are packaged in TFBGA240+25. The

hardware block diagram (see Figure 3) illustrates the connection between the microcontroller and the peripherals

(SDRAM, eMMC, Quad-SPI Flash memory, FDCAN, LCD RGB connector, USB OTG connectors, UART,

Ethernet, Audio, TAG connector, STDC connector, ARDUINO® Uno shields and embedded ST-LINK). Figure 4

and Figure 5 help to locate these features on the STM32H745I-DISCO and STM32H750B-DK boards.

Figure 3. Hardware block diagram

STM32H745XI/STM32H750XB

in TFGA240+25

RTC

UART3

FMC

OTG

FDCAN1/2

SDMMC1

QSPI

PWR

32.768 kHz crystal

STLINK-V3E

128 Mbit SDRAM

USB connector

2x FDCANs

4 Gbyte eMMC

2x512 Mbit Quad-SPI Flash

memory

Power supply

STMod+ connector

ARD connector

MII

I2C4

TAG connector SWD

STDC connector

Ethernet

LCD 4.3 inch RGB LCD

SAI2 Audio Codec

PDM

SPI2

POE

UART2

UART1

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Hardware layout and configuration

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6.1 STM32H745I-DISCO and STM32H750B-DK layout

Figure 4. STM32H745I-DISCO and STM32H750B-DK Discovery board top layout

B1 reset button

B2 user button

CN1 Ethernet

connector

LD6/LD7/LD8

user LEDs

JP8 power

header

U33 RGB LCD

connector

U34 MEMS

microphone

P1 STMod+

connector

CN16 TAG

connector

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STM32H745I-DISCO and STM32H750B-DK layout

UM2488 - Rev 4 page 8/55

Figure 5. STM32H745I-DISCO and STM32H750B-DK Discovery board bottom layout

CN1 Ethernet

connector JP8 power

header

U6 MCU

U7 SDRAM

U1, U2 QSPI

CN12, CN16 Arduino

connectors

CN15 USB power

connector

CN14 STLK USB

connector

CN3, CN7 Arduino

connectors

CN13 USB OTG_FS

connector

U21, U22

FDCANs

U11 eMMC

CN8 line in

connector

CN9 line out

connector

P1 STMod+

connector

CN14 STDC14

connector

U15 Audio

Codec

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STM32H745I-DISCO and STM32H750B-DK layout

UM2488 - Rev 4 page 9/55

6.2 STM32H745I-DISCO and STM32H750B-DK mechanical drawing

Figure 6 shows the mechanical dimensions of the STM32H745I-DISCO and STM32H750B-DK boards.

Figure 6. STM32H745I-DISCO and STM32H750B-DK Discovery board mechanical drawing (bottom view)

6.3 Embedded STLINK-V3E

The STLINK-V3E programming and debugging tool is integrated into the STM32H745I-DISCO and

STM32H750B-DK Discovery kits. It supports:

• USB software re-enumeration

• Virtual COM port interface on USB

• Mass storage interface on USB

• USB power management request for more than 100 mA power on USB

The USB connector (CN14) can be used to power the STM32H745I-DISCO and STM32H750B-DK regardless of

the STLINK-V3E facility used for debugging or programming the STM32H745XIH6 and STM32H750XBH6. This

holds also when the STLINK-V3E standalone tool is connected to CN4 or CN16 connector and used for

debugging or programming the STM32H745XIH6 and STM32H750XBH6. Section 6.4 Power supply provides

more details about STM32H745I-DISCO and STM32H750B-DK powering.

Refer to www.st.com for details about STLINK-V3E.

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STM32H745I-DISCO and STM32H750B-DK mechanical drawing

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Otros manuales para STM32H745I-DISCO

Este manual sirve para los siguientes modelos

Tabla de contenidos

Otros manuales de Microcontrolador de ST

ST STM32 Nucleo Instrucciones de instalación y funcionamiento

ST STM32F413 Series Manual de usuario

ST STM32F746NGH6 Manual de usuario

ST SPC574S-DISP Sphaero Discovery+ Manual de usuario

ST STM32F429I-DISCO Manual de usuario

ST STM32L4x6 Manual de usuario

ST STEVAL-MKBOXPRO Manual de usuario

ST STM32U585 Series Manual de usuario

ST STM32F412 Manual de usuario

ST STEVAL-ISB68WTX Manual de usuario

ST UM1932 Manual de usuario

ST STM32WL55JC Manual de usuario

ST STM32 Series Instrucciones de instalación y funcionamiento

ST STM32L4 Series Manual de usuario

ST STM32F31xx Manual de usuario

ST 32F429IDISCOVERY Manual de usuario

ST STM32H7B3I-DK Manual de usuario

ST STM32G4 Series Manual de usuario

ST UM2975 Manual de usuario

ST STM8AF Series Manual de usuario

ST STEVAL-BCN002V1B Manual de usuario

ST STM8L Instrucciones de instalación y funcionamiento

ST STM32F40 Series Manual de usuario

ST STM32 Nucleo Manual de usuario

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