ST STM32F401 Discovery Manual de usuario

September 2013 DocID025174 Rev 1 1/39

UM1669

User manual

Discovery kit for STM32F401 line

Introduction

The STM32F401 Discovery kit (32F401CDISCOVERY) helps you to discover the entry level

of the STM32F4 series and to develop your applications. It is based on an

STM32F401VCT6 and includes an ST-LINK/V2 embedded debug tool interface, ST MEMS

Gyroscope, ST MEMS accelerometer + magnetometer, ST MEMS digital microphone, audio

DAC with integrated class D speaker driver, LEDs, pushbuttons and a USB OTG micro-AB

connector.

Figure 1. STM32F401 Discovery board

www.st.com

Contents UM1669

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Contents

1 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Development toolchain supporting the STM32F401 Discovery kit . . . . . . . 7

2.4 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 Hardware layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1 STM32F401VCT6 microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2 Embedded ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.2.1 Using ST-LINK/V2 to program/debug the STM32F401 on board . . . . . 16

4.2.2 Using ST-LINK/V2 to program/debug an external STM32 application . . 17

4.3 Power supply and power selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.5 Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.6 On board audio capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.7 USB OTG supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.8 E-compass MEMS (ST MEMS LSM303DLHC) . . . . . . . . . . . . . . . . . . . . 19

4.9 Gyroscope MEMS (ST MEMS L3GD20) . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.10 JP2 (Idd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.11 OSC clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.11.1 OSC clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.11.2 OSC 32 KHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.12 Solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.13 Extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5 Mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6 Electrical schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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UM1669 Contents

7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

List of tables UM1669

4/39 DocID025174 Rev 1

List of tables

Table 1. ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 2. Features and benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 3. Jumper states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 4. Debug connector CN2 (SWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 5. Solder bridges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 6. MCU pin description versus board function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 7. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

DocID025174 Rev 1 5/39

UM1669 List of figures

List of figures

Figure 1. STM32F401 Discovery board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 1. Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 2. Top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 3. Bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 4. STM32F401VCT6 microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 5. STM32F401VCT6 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 6. Typical configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 7. STM32F401 Discovery board connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 8. ST-Link connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 9. STM32F401 Discovery board mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 10. STM32F401 Discovery board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 11. ST-LINK/V2 (SWD only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 12. STM32F401VCT6 MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 13. Audio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 14. USB_OTG_FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 15. Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Conventions UM1669

6/39 DocID025174 Rev 1

1 Conventions

Table 1 provides the definition of some conventions used in the present document.

Table 1. 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

DocID025174 Rev 1 7/39

UM1669 Quick start

2 Quick start

The STM32F401 Discovery is a low-cost and easy-to-use development kit to quickly

evaluate and start a development with an STM32F4 entry level microcontroller.

Before installing and using the product, please accept the Evaluation Product License

Agreement from www.st.com/stm32f4-discovery.

For more information on the STM32F401 Discovery board and for demonstration software,

visit www.st.com/stm32f4-discovery.

2.1 Getting started

Follow the sequence below to configure the STM32F401 Discovery board and launch the

DISCOVER application:

1. Ensure that the jumpers JP2 and CN3 are set to "on" (Discovery mode).

2. Connect the STM32F401 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 LED LD2 (PWR)

will light up and the four LEDs between the buttons B1 and B2 start blinking.

3. Press the user button B1 to enable the MEMS sensor. The four LEDs will indicate the

board motion direction and speed. When connected to a PC with a second USB type

A/micro-B cable through CN5, the board will be recognized as a standard mouse.

4. The demo software, as well as other software examples that allow you to discover the

STM32 F4 series features, are available on www.st.com/stm32f4-discovery.

5. Develop your own applications starting from the examples.

2.2 System requirements

•Windows PC (XP, Vista, 7)

•USB type A to mini-B cable

2.3 Development toolchain supporting the STM32F401

Discovery kit

•Altium: TASKING™ VX-Toolset

•Atollic: TrueSTUDIO

•IAR: EWARM

•Keil™: MDK-ARM

2.4 Order code

To order the STM32F401 Discovery kit, use the STM32F401C-DISCO order code.

Features UM1669

8/39 DocID025174 Rev 1

3 Features

The STM32F401 Discovery board offers the following features:

•STM32F401VCT6 microcontroller featuring 256 KB of Flash memory, 64 KB of RAM in

an LQFP100 package

•On-board ST-LINK/V2 with selection mode switch to use the kit as a standalone ST-

LINK/V2 (with SWD connector for programming and debugging)

•Board power supply: through USB bus or from an external 5 V supply voltage

•External application power supply: 3 V and 5 V

•L3GD20, ST MEMS motion sensor, 3-axis digital output gyroscope.

•LSM303DLHC, ST MEMS system-in-package featuring a 3D digital linear acceleration

sensor and a 3D digital magnetic sensor.

•MP45DT02, ST MEMS audio sensor, omnidirectional digital microphone

•CS43L22, audio DAC with integrated class D speaker driver

•Eight LEDs:

– LD1 (red/green) for USB communication

– LD2 (red) for 3.3 V power on

– Four user LEDs:

LD3 (orange), LD4 (green), LD5 (red) and LD6 (blue)

– Two USB OTG LEDs:

LD7 (green) VBus and LD8 (red) over-current

•Two pushbuttons (user and reset)

•USB OTG with micro-AB connector

•Extension header for LQFP100 I/Os for a quick connection to the prototyping board

and an easy probing

DocID025174 Rev 1 9/39

UM1669 Hardware layout

4 Hardware layout

The STM32F401 Discovery board has been designed around the STM32F401VCT6

microcontroller in a 100-pin LQFP package.

Figure 1 illustrates the connections between the STM32F401VCT6 and its peripherals (ST-

LINK/V2, pushbutton, LED, Audio DAC, USB, ST MEMS gyroscope, ST MEMS

accelerometer + magnetometer, ST MEMS microphone, and connectors).

Figure 2 and Figure 3 help you to locate these features on the STM32F401 Discovery

board.

Figure 1. Hardware block diagram

Embedded

ST-LINK/V2

STM32F401VCT6

I/O I/O

I/O RESET

LEDs

LD3...LD8

MP45DT02

RESET

USER

L3GD20

Micro-USB

Mini-USB

SWD

Header

CS43L22

Mini-Jack

MS31947V2

LSM303DLHC

Hardware layout UM1669

10/39 DocID025174 Rev 1

Figure 2. Top layout

MS32361V1

ST-LINK/V2

ST-LINK/V

LD1 (red/green LED)

COM

CN2

SWD connector

LD2 (red LED)

PWR

CN3

ST-LINK/DISCOVERY selector

STM32F401VCT6

LD3 (orange LED)

LD5 (red LED)

B2 reset button

LD8 (red LED)LD7 (green LED)

LD6 (blue LED)

LD4 (green LED)

B1 user button

JP2

IDD measurement

SB1 (B2-RESET)

5 V power supply input/output

3 V power supply output

Otros manuales para STM32F401 Discovery

Tabla de contenidos

Otros manuales de Microcontrolador de ST

ST STM32F0 Series Instrucciones de instalación y funcionamiento

ST SPC574S-DISP Sphaero Discovery+ Manual de usuario

ST STM32F103 series Instrucciones de instalación y funcionamiento

ST STM8S Manual de usuario

ST EVLKST8500GH868 Manual de usuario

ST STM32 NUCLEO-F030R8 Manual de usuario

ST BlueNRG Manual de usuario

ST STEVAL-STWINBX1 Manual de usuario

ST STM32F7308-DK Manual de usuario

ST STM32H745I-DISCO Manual de usuario

ST UM2140 Manual de usuario

ST STEVAL-MKSBOX1V1 Manual de usuario

ST STM32W-SK Manual de usuario

ST STM32G0 1 Series Manual de usuario

ST STEVAL-STWINKT1 Manual de usuario

ST STM32F2 Series Manual de usuario

ST ST7260 Series Manual de usuario

ST STM32 Nucleo-64-P Series Manual de usuario

ST STM8S Instrucciones de instalación y funcionamiento

ST STM32L562E-DK Manual de usuario

ST STM32G4 Series Manual de usuario

ST UM2135 Manual de usuario

ST STM32F4 Series Manual de usuario

ST STM32MP157C-DK2 Manual de usuario

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