ST 32F429IDISCOVERY User manual

July 2020 UM1670 Rev 4 1/32
1
UM1670
User manual
Discovery kit with STM32F429ZI MCU
Introduction
The 32F429IDISCOVERY Discovery kit allows users to easily develop applications with the
STMicroelectronics Arm®Cortex®-M4 core-based STM32F429 high-performance
microcontroller. It includes an ST-LINK/V2-B embedded debug tool, a 2.4" QVGA TFT LCD,
an external 64-Mbit SDRAM, an ST MEMS gyroscope, a USB OTG Micro-AB connector,
LEDs and push-buttons.
The board comes with the STM32 comprehensive free software libraries and examples
available with the STM32CubeF4 MCU Package, as well as direct access to the Arm®Mbed
Enabled™resources at the http://mbed.org website.
Figure 1. STM32F429 Discovery board
Picture is not contractual.
www.st.com

Contents UM1670
2/32 UM1670 Rev 4
Contents
1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Codification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Development environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Development toolchains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Hardware layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.1 STM32F429 Discovery board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6.2 Mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3 Embedded ST-LINK/V2-B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.3.1 Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.3.2 ST-LINK/V2-B firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.3.3 VCP configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.3.4 Using ST-LINK/V2-B to program/debug
the STM32F429ZIT6 on board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.3.5 Using ST-LINK/V2-B to program/debug
an external STM32 application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.4 Power supply and power selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.5 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.6 Push-buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.7 USB OTG supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.8 Gyroscope MEMS (ST-MEMS I3G4250D) . . . . . . . . . . . . . . . . . . . . . . . . 19
6.9 TFT LCD (Thin-film-transistor liquid-crystal display) . . . . . . . . . . . . . . . . 19
6.10 64-Mbit SDRAM (1Mbit x 16-bit x 4-bank) . . . . . . . . . . . . . . . . . . . . . . . . 19
6.11 JP3 (Idd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

UM1670 Rev 4 3/32
UM1670 Contents
3
6.12 OSC clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.12.1 OSC clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.12.2 OSC 32 kHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.13 Solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.14 Extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7 32F429IDISCOVERY information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.1 Product marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.2 Board revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.2.1 MB1075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.3 Known limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.3.1 MB1075-F429 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

List of tables UM1670
4/32 UM1670 Rev 4
List of tables
Table 1. Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 2. Codification explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 4. Jumper states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 5. Debug connector CN2 (SWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 6. Solder bridges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 7. STM32 pin description versus board functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 8. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

UM1670 Rev 4 5/32
UM1670 List of figures
5
List of figures
Figure 1. STM32F429 Discovery board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 3. Top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4. Bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5. STM32F429 Discovery board mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 6. Updating the list of drivers in Device Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 7. STM32F429 Discovery board connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 8. ST-LINK/V2-B connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Features UM1670
6/32 UM1670 Rev 4
1 Features
•STM32F429ZIT6 microcontroller featuring 2 Mbytes of Flash memory, 256 Kbytes of
RAM in an LQFP144 package
•2.4" QVGA TFT LCD
•USB OTG with Micro-AB connector
•I3G4250D, ST MEMS motion sensor 3-axis digital output gyroscope
•Six LEDs:
– LD1 (red/green) for USB communication
– LD2 (red) for 3.3 V power-on
– Two user LEDs: LD3 (green), LD4 (red)
– Two USB OTG LEDs: LD5 (green) VBUS and LD6 (red) OC (over-current)
•Two push-buttons (user and reset)
•64-Mbit SDRAM
•Extension header for LQFP144 I/Os for a quick connection to the prototyping board
and an easy probing
•On-board ST-LINK/V2-B
•USB functions:
– Debug port
– Virtual COM port
– Mass storage
•Mbed Enabled™ (see http://mbed.org)
•Board power supply: through the USB bus or from an external 5 V supply voltage
•Comprehensive free software including a variety of examples, part of STM32CubeF4
MCU Package or STSW-STM32138, for using legacy standard libraries

UM1670 Rev 4 7/32
UM1670 Ordering information
31
2 Ordering information
To order the Discovery kit with the STM32F429ZI microcontroller, refer to Table 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 Tabl e 2.
The order code is mentioned on a sticker placed on the top or bottom side of the board.
Table 1. Ordering information
Order code Board reference Target STM32
STM32F429I-DISC1(1)
1. Mbed Enabled™ STM32F429I-DISC1 with ST-LINK/V2-B replaces obsolete STM32F429I-DISCO with
ST-LINK/V2.
MB1075 STM32F429ZIT6
Table 2. Codification explanation
32XXYYZDISCOVERY Description Example: 32F429IDISCOVERY
32XX MCU series in STM32 32-bit Arm
Cortex MCUs STM32F4 Series
YY MCU product line in the series STM32F429
ZSTM32 Flash memory size:
– I for 2 Mbytes 2 Mbytes
DISCOVERY Discovery kit Discovery kit

Development environment UM1670
8/32 UM1670 Rev 4
3 Development environment
3.1 System requirements
•Windows® OS (7, 8 and 10), Linux® 64-bit or macOS®(a)
•USB Type-A to Mini-B cable
3.2 Development toolchains
•IAR Systems - IAR Embedded Workbench®(b)
•Keil®- MDK-ARM(b)
•STMicroelectronics - STM32CubeIDE
•Arm® Mbed™(c) online (see http://mbed.org)
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.
4 Conventions
Table 3 provides the definition of some conventions used in the present document.
a. macOS®is a trademark of Apple Inc. registered in the U.S. and other countries.
b. On Windows®only.
c. Arm and Mbed are registered trademarks or trademarks of Arm Limited (or its subsidiaries) in the US and
or elsewhere.
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

UM1670 Rev 4 9/32
UM1670 Quick start
31
5 Quick start
The STM32F429 Discovery is a low-cost and easy-to-use development kit to quickly
evaluate and start development with an STM32F4 microcontroller.
Before installing and using the product, accept the Evaluation Product License Agreement
from www.st.com/stm32f4-discovery.
For more information on the STM32F429 Discovery board and for demonstration software,
visit www.st.com/stm32f4-discovery.
5.1 Getting started
Follow the sequence below to configure the STM32F429 Discovery board and launch the
DISCOVER application:
1. Ensure that the jumpers JP3 and CN4 are set ON (Discovery mode).
2. Connect the STM32F429 Discovery board to a PC using a USB cable Type-A/Mini-B
through the USB ST-LINK connector CN1, to power the board, the LEDs LD2 (PWR)
and LD1 (COM).
3. The following applications are available on the screen:
– Clock/Calendar and Game
– Video Player and Image Browser (play videos and view images from the USB
mass storage connected to CN6)
– Performance monitor (watch the CPU load and run a graphical benchmark)
– System Info
4. The demonstration software, as well as other software examples, are available at the
www.st.com/stm32f4-discovery web page.
5. Develop applications starting from the examples.

Hardware layout UM1670
10/32 UM1670 Rev 4
6 Hardware layout
The STM32F429 Discovery board has been designed around the STM32F429ZIT6
microcontroller in a 144-pin LQFP package.
Figure 2 illustrates the connections between the STM32F429ZIT6 and its peripherals
(ST-LINK/V2-B, push-buttons, LEDs, USB OTG, ST-MEMS gyroscope, accelerometer,
magnetometer, and connectors).
Figure 3 and Figure 4 show the location of these features on the STM32F429 Discovery
board.
Figure 5 shows the mechanical dimensions of the STM32F429 Discovery board.
Figure 2. Hardware block diagram
MSv32376V3
Embedded
ST-LINK/V2-B
STM32F429ZIT6
I/O I/O
I/O RESET
LEDs
LD3...LD6
SDRAM
64 Mbits
B2
RESET
B1
USER
I3G4250D
Micro USB
Mini USB
SWD
Header
Header
2.4" QVGA
TFT LCD
I2C ext