St 32f412gdiscovery User manual

October 2021 UM2032 Rev 3 1/40

UM2032

User manual

Discovery kit with STM32F412ZG MCU

Introduction

The 32F412GDISCOVERY Discovery kit is a complete demonstration and development

platform for STMicroelectronics Arm®Cortex®-M4 core-based STM32F412ZGT6

microcontroller. This microcontroller features four I2C buses, four USART ports, five SPI

ports with two multiplexed full-duplex I2S buses, SDIO interface, USB OTG full-speed 2.0

port, two CAN buses, FMC parallel interface, two digital filters for sigma-delta modulators,

PDM interface for two digital microphones, one 12-bit ADC, dual Quad-SPI interface, JTAG

and SWD debugging support. This Discovery kit offers everything required for users to get

started quickly and develop applications easily.

A full range of hardware features on the board helps users to evaluate on-board peripherals

such as: USB OTG FS, microSD™ card, full-duplex I2S with an audio codec and stereo jack

for headset including analog microphone, DFSDM with a pair of ST-MEMS digital

microphones on board, Quad-SPI Flash memory device, 1.54" TFT LCD using FMC

interface with capacitive touch panel.

The ARDUINO®Uno V3 compatible connectors expand the functionality with a wide choice

of specialized shields. The extension connectors allow easy connection of a daughterboard

for specific customer applications. The integrated ST-LINK/V2-1 provides an embedded

in-circuit debugger and programmer for the STM32.

Pictures are not contractual.

Figure 1. 32F412GDISCOVERY (top view) Figure 2. 32F412GDISCOVERY (bottom view)

www.st.com

Contents UM2032

2/40 UM2032 Rev 3

Contents

1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1 Codification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 Development environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.2 Development toolchains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5 Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5.1 32F412GDISCOVERY Discovery kit mechanical drawing . . . . . . . . . . . . 13

5.2 Embedded ST-LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.2.1 Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.2.2 ST-LINK/V2-1 firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.3.1 Power supply sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.3.2 STM32 power supply options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.3.3 Modification of STM32 voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.3.4 Supplying the 32F412GDISCOVERY through

the ST-LINK/V2-1 USB port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.3.5 Programming/debugging when the power supply

is not from ST-LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.3.6 Measurement of current IDD drawn by the microcontroller . . . . . . . . . . 17

5.4 Clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.4.1 HSE clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.4.2 LSE clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.5 Reserved use of solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.6 Reset source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.7 Boot options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.8 Audio codec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.8.1 Stereo headset and headphone jack . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.8.2 Loudspeaker output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

UM2032 Rev 3 3/40

UM2032 Contents

5.9 Digital microphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.10 USB OTG FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.10.1 32F412GDISCOVERY is USB device . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.10.2 32F412GDISCOVERY is USB host . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.11 microSD™ card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.12 I2C extension connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.13 Quad-SPI NOR Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.14 Virtual COM port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.15 ARDUINO®Uno V3 connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.16 Extension connectors P1 and P2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.17 LCD display, backlight and touch panel . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.17.1 LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.17.2 LCD signal access (CN7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.17.3 Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.17.4 Touch panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.18 Joystick and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.1 I2C extension connector CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.2 USB OTG FS Micro-AB connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.3 microSD™ connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.4 ST-LINK/V2-1 USB Micro-B connector CN6 . . . . . . . . . . . . . . . . . . . . . . 33

7 32F412GDISCOVERY Discovery kit information . . . . . . . . . . . . . . . . . 35

7.1 Product marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.2 32F412GDISCOVERY product history . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.2.1 Product identification 32F412GDISCO/ . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.2.2 Product identification DK32F412G$AU1 . . . . . . . . . . . . . . . . . . . . . . . . 36

7.3 Board revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.3.1 MB1209 revision D-02 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.3.2 MB1209 revision D-04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.4 Board known limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.4.1 MB1209 revision D-02 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.4.2 MB1209 revision D-04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Contents UM2032

4/40 UM2032 Rev 3

8 Federal Communications Commission (FCC)

and ISED Canada Compliance Statements . . . . . . . . . . . . . . . . . . . . . . 37

8.1 FCC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8.1.1 Part 15.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8.1.2 Part 15.21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8.1.3 Part 15.105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8.2 ISED Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

9 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

UM2032 Rev 3 5/40

UM2032 List of tables

List of tables

Table 1. Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 2. Codification explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 3. ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 4. Power-supply-related jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 5. Boot options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 6. Boot-related solder bridge and resistor settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 7. ARDUINO®Uno V3 compatible connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 8. Pin assignment for the extension connector P1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 9. Pin assignment for the extension connector P2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 10. Pin assignment for connector CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 11. Pin assignment for connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 12. Port assignment to the LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table 13. I2C extension connector pinout CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Table 14. USB OTG FS Micro-AB connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Table 15. microSD™ connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 16. USB Micro-B connector CN6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 17. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

List of figures UM2032

6/40 UM2032 Rev 3

List of figures

Figure 1. 32F412GDISCOVERY (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. 32F412GDISCOVERY (bottom view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 3. Hardware block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 4. 32F412GDISCOVERY top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 5. 32F412GDISCOVERY bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 6. 32F412GDISCOVERY mechanical drawing (dimensions in millimeters) . . . . . . . . . . . . . . 13

Figure 7. Updating the list of drivers in device manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 8. R90 and R92 resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 9. I2C extension connector CN10 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 10. USB OTG FS Micro-AB connector CN3 (front view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 11. microSD™ connector CN13 (front view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 12. USB Micro-B connector CN6 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

UM2032 Rev 3 7/40

UM2032 Features

1 Features

•STM32F412ZGT6 microcontroller, based on the Arm®(a) Cortex®-M4 processor,

featuring 1 Mbyte of Flash memory and 256 Kbytes of RAM in an LQFP144 package

•1.54-inch, 240x240 pixel TFT color LCD with parallel interface and capacitive touch

panel

•USB OTG FS

•I2S audio codec

•Stereo digital ST-MEMS microphones

•128-Mbit Quad-SPI NOR Flash memory

•Reset push-button and joystick

•4 color user LEDs

•Board connectors

– microSD™ card

– User USB with Micro-AB

– Stereo headset jack with analog microphone input and a loudspeaker output

–I

2C expansion connector

– ARDUINO®Uno V3 expansion connectors

– 2.54 mm pitch expansion connector for direct access to various features of the

STM32F412ZGT6 microcontroller

•Flexible power-supply options:

–ST-LINK/V2-1

– User USB FS connector

– VIN from ARDUINO®Uno V3

– +5 V from ARDUINO®Uno V3

•2.0 V and 3.3 V supply voltage options for the STM32F412ZGT6

•Comprehensive free software libraries and examples available with the STM32Cube

MCU Package

•On-board ST-LINK/V2-1 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 Embedded Workbench®, MDK-ARM, and STM32CubeIDE

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

Ordering information UM2032

8/40 UM2032 Rev 3

2 Ordering information

To order the 32F412GDISCOVERY Discovery kit, refer to Tabl e 1. Additional information is

available from the datasheet and reference manual of the target microcontroller.

2.1 Codification

The meaning of the codification is explained in Table 2.

Table 1. Ordering information

Order code Board reference Target STM32

STM32F412G-DISCO MB1209 STM32F412ZGT6

Table 2. Codification explanation

STM32F4XXY-DISCO Description Example: STM32F412G-DISCO

STM32F4 MCU series in STM32 32-bit Arm Cortex

MCUs STM32F4 Series

XX MCU product line in the series STM32F412

YSTM32 Flash memory size:

– G for 1 Mbyte 1 Mbyte

DISCO Discovery kit Discovery kit

UM2032 Rev 3 9/40

UM2032 Development environment

3 Development environment

3.1 System requirements

•Multi.OS support: Windows®10, Linux® (a) 64-bit, or macOS® (b)

•USB Type-A or USB Type-C®to Micro-B cable

3.2 Development toolchains

•IAR Systems®- IAR Embedded Workbench® (c)

•Keil®- MDK-ARM(c) (d)

•STMicroelectronics - STM32CubeIDE

4 Conventions

Table 3 provides the definition of some conventions used in the present document.

a. Linux®is a registered trademark of Linus Torvalds.

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

c. On Windows®only.

d. All other trademarks are the property of their respective owners.

Table 3. ON/OFF conventions

Convention Definition

Jumper JPx ON Jumper fitted

Jumper JPx OFF Jumper not fitted

Solder bridge SBx ON SBx connections closed by solder

Solder bridge SBx OFF SBx connections left open

Hardware layout and configuration UM2032

10/40 UM2032 Rev 3

5 Hardware layout and configuration

The 32F412GDISCOVERY Discovery kit is designed around the STM32F412ZGT6 (144-pin

TQFP package). The hardware block diagram shown in Figure 3, illustrates the

STM32F412ZGT6 connections with the peripherals. Figure 4 and Figure 5 show the

location of the main components on the Discovery kit.

Figure 3. Hardware block diagram

MSv41795V1

STM32F412ZGT6

TQFP144 package

Audio CODEC

RTC

3.3 V power

supply

I2C1

I2S3

I2C extension

connector

1.54" LCD

Joystick

GPIO

SDIO

QSPI

OTG

FS USB connector

USART2

FSMC

GPIOs

SWD

Stereo headset output

Stereo digital

microphones

DFSDM

LCD touch

panel

ARDUINO®

connectors

Extension

connectors

I2C2

2.0 V power

supply

Monophonic loudspeaker output

Analog microphone input

GPIOs

128-Mbyte

Quad-SPI

Flash memory

4x LEDs

ST-LINK/V2-1

microSD™ card

connector

32 KHz crystal

Table of contents

Popular Computer Hardware manuals by other brands

Toshiba

Toshiba TOSVERT VF-MB1/S15 IPE002Z Function manual

Shenzhen

Shenzhen MEITRACK MVT380 user guide

TRENDnet

TRENDnet TEW-601PC - SUPER G MIMO WRLS PC CARD user guide

StarTech.com

StarTech.com CF2IDE18 instruction manual

Texas Instruments

Texas Instruments LMH0318 Programmer's guide

Gateway

Gateway 8510946 user guide

Devon IT

Devon IT TC2D Quick setup guide

Krüger & Matz

Krüger & Matz Air Shair2 owner's manual

Crystalio

Crystalio VPS-2300 quick guide

MYiR

MYiR FZ3 user manual

Protech Systems

Protech Systems BC-K200 Quick reference guide

Miranda

Miranda DENSITE series DAP-1781 Guide to installation and operation

Sierra Wireless

Sierra Wireless Sierra Wireless AirCard 890 quick start guide

Leadtek

Leadtek Killer Xeno Pro Quick installation guide

Star Cooperation

Star Cooperation FlexTiny 3 Series Instructions for use

Hotone

Hotone Ampero user manual

Connect Tech

Connect Tech Xtreme/104-Express user manual

Yealink

Yealink WF50 user guide

ST 32F412GDISCOVERY User manual

Popular Computer Hardware manuals by other brands