ST UM1472 User manual

January 2012 Doc ID 022256 Rev 2 1/38
UM1472
User Manual
STM32F4DISCOVERY
STM32F4 high-performance discovery board
Introduction
The STM32F4DISCOVERY helps you to discover the STM32F4 high-performance features
and to develop your applications. It is based on an STM32F407VGT6 and includes an
ST-LINK/V2 embedded debug tool interface, ST MEMS digital accelerometer, ST MEMS
digital microphone, audio DAC with integrated class D speaker driver, LEDs, pushbuttons
and a USB OTG micro-AB connector.
Figure 1. STM32F4DISCOVERY
www.st.com

Contents STM32F4DISCOVERY
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Contents
1Conventions................................................5
2Quickstart.................................................6
2.1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Development toolchain supporting the STM32F4DISCOVERY . . . . . . . . . 6
2.4 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3Features...................................................7
4Hardwareandlayout.........................................8
4.1 STM32F407VGT6 microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Embedded ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2.1 Using ST-LINK/V2 to program/debug the STM32F4 on board . . . . . . . . 14
4.2.2 Using ST-LINK/V2 to program/debug an external STM32 application . . 15
4.3 Power supply and power selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.5 Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.6 On board audio capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.7 USB OTG supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.8 Motion sensor (ST MEMS LIS302DL) . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.9 JP1 (Idd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.10 OSC clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.10.1 OSC clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.10.2 OSC 32 KHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.11 Solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.12 Extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5Mechanicaldrawing........................................30
6Electricalschematics.......................................31
7Revisionhistory...........................................37

STM32F4DISCOVERY List of tables
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List of tables
Table 1. ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 2. Jumper states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 3. Debug connector CN2 (SWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 4. Solder bridges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 5. MCU pin description versus board function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 6. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

List of figures STM32F4DISCOVERY
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List of figures
Figure 1. STM32F4DISCOVERY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3. Top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4. Bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 5. STM32F407VGT6 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6. STM32F407VGT6 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 7. Typical configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 8. STM32F4DISCOVERY connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 9. ST-Link connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 10. STM32F4DISCOVERY mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 11. STM32F4DISCOVERY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 12. ST-LINK/V2 (SWD only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 13. MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 14. Audio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 15. USB_OTG_FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 16. Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

STM32F4DISCOVERY Conventions
Doc ID 022256 Rev 2 5/38
1 Conventions
Ta bl e 1 provides the definition of some conventions used in the present document.
Table 1. ON/OFF conventions
Convention Definition
Jumper JP1 ON Jumper fitted
Jumper JP1 OFF Jumper not fitted
Solder bridge SBx ON SBx connections closed by solder
Solder bridge SBx OFF SBx connections left open

Quick start STM32F4DISCOVERY
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2 Quick start
The STM32F4DISCOVERY is a low-cost and easy-to-use development kit to quickly
evaluate and start a development with an STM32F4 high-performance 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 STM32F4DISCOVERY and for demonstration software, visit
www.st.com/stm32f4-discovery.
2.1 Getting started
Follow the sequence below to configure the STM32F4DISCOVERY board and launch the
DISCOVER application:
1. Check jumper position on the board, JP1 on, CN3 on (DISCOVERY selected).
2. Connect the STM32F4DISCOVERY board to a PC with a USB cable ‘type A to mini-B’
through USB connector CN1 to power the board. Red LED LD2 (PWR) then lights up.
3. Four LEDs between B1 and B2 buttons are blinking.
4. Press user button B1 to enable the ST MEMS sensor, move the board and observe the
four LEDs blinking according to the motion direction and speed. (If you connect a
second USB cable ‘type A to micro-B’ between PC and CN5 connector then the board
is recognized as standard mouse and its motion will also control the PC cursor).
5. To study or modify the DISCOVER project related to this demo, visit
www.st.com/stm32f4-discovery and follow the tutorial.
6. Discover the STM32F4 features, download and execute programs proposed in the list
of projects.
7. Develop your own application using available examples.
2.2 System requirements
●Windows PC (XP, Vista, 7)
●USB type A to Mini-B USB cable
2.3 Development toolchain supporting the STM32F4DISCOVERY
●Altium, TASKING™ VX-Toolset
●Atollic, TrueSTUDIO
●IAR, EWARM
●Keil™, MDK-ARM
2.4 Order code
To o r de r th e S T M3 2 F 4 h i gh - p e rfo r m a n c e d i s co ve r y b o a r d , u s e t h e o r d e r c o d e
STM32F4DISCOVERY.

STM32F4DISCOVERY Features
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3 Features
The STM32F4DISCOVERY offers the following features:
●STM32F407VGT6 microcontroller featuring 1 MB of Flash memory, 192 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 5V supply voltage
●External application power supply: 3V and 5V
●LIS302DL, ST MEMS motion sensor, 3-axis digital output accelerometer
●MP45DT02, ST MEMS audio sensor, omnidirectional digital microphone
●CS43L22, audio DAC with integrated class D speaker driver
●Eight LEDs:
–LD1(red/green)forUSBcommunication
–LD2(red)for3.3Vpoweron
–FouruserLEDs,LD3(orange),LD4(green),LD5(red)andLD6(blue)
–2USBOTGLEDsLD7(green)VBusandLD8(red)over-current
●Tw o p u s h bu tt o n s ( u s e r a n d r e s e t )
●USB OTG with micro-AB connector
●Extension header for LQFP100 I/Os for quick connection to prototyping board and easy
probing

Hardware and layout STM32F4DISCOVERY
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4 Hardware and layout
The STM32F4DISCOVERY is designed around the STM32F407VGT6 microcontroller in a
100-pin LQFP package.
Figure 2 illustrates the connections between the STM32F407VGT6 and its peripherals (ST-
LINK/V2, pushbutton, LED, Audio DAC, USB, ST MEMS accelerometer, ST MEMS
microphone, and connectors).
Figure 3 and Figure 4 help you to locate these features on the STM32F4DISCOVERY.
Figure 2. Hardware block diagram
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STM32F4DISCOVERY Hardware and layout
Doc ID 022256 Rev 2 9/38
Figure 3. Top layout
Note: Pin 1 of CN2, CN3, JP1, P1 and P2 connectors are identified by a square.
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Hardware and layout STM32F4DISCOVERY
10/38 Doc ID 022256 Rev 2
Figure 4. Bottom layout
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