ST STM32F3DISCOVERY User manual

September 2012 Doc ID 023594 Rev 2 1/36
UM1570
User manual
STM32F3DISCOVERY
Discovery kit for STM32F303xx microcontrollers
Introduction
The STM32F3DISCOVERY is designed to help you explore the features of the STM32 F3
32-bit ARM® Cortex™-M4 mixed-signal MCU, and develop your applications. It is based on
an STM32F303VCT6 and includes an ST-LINK/V2 embedded debug tool interface,
Gyroscope ST MEMS, E-compass with accelerometer ST MEMS, LEDs, pushbuttons and a
USB mini-B connector.
Figure 1. STM32F3DISCOVERY
Table 1. Applicable tools
Type Part number
Evaluation tools STM32F3DISCOVERY
www.st.com

Contents UM1570
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Contents
1 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Development toolchain supporting the STM32F3DISCOVERY . . . . . . . . . 6
2.4 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Hardware and layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 STM32F303VCT6 microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Embedded ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2.1 Using ST-LINK/V2 to program/debug the STM32F303VCT6 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.5 Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.6 USB device supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.7 E-compass/accelerometer MEMS (ST MEMS LSM303DLHC) . . . . . . . . 18
4.8 Gyroscope MEMS (ST MEMS L3GD20) . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.9 JP3 (Idd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.10 OSC clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.10.1 OSC clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.10.2 OSC 32 kHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.11 Solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.12 Extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5 Mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6 STM32F3DISCOVERY electrical schematics . . . . . . . . . . . . . . . . . . . . . 31
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

UM1570 List of figures
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List of figures
Figure 1. STM32F3DISCOVERY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3. Board layout (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4. Board layout (bottom view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 5. STM32F303VCT6 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6. STM32F303VCT6 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 7. Typical configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 8. STM32F3DISCOVERY connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 9. ST-LINK/V2 connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 10. STM32F3DISCOVERY mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 11. STM32F3DISCOVERY top level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 12. ST-LINK/V2 (SWD only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 13. STM32F303VCT6 MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 14. Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

List of tables UM1570
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List of tables
Table 1. Applicable tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 3. Jumper states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 4. Debug connector CN3 (SWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 5. Solder bridges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 6. STM32F303VCT6 MCU pin description versus board function . . . . . . . . . . . . . . . . . . . . . 21
Table 7. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

UM1570 Conventions
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1 Conventions
Tabl e 2 provides the definition of some conventions used in the present document.
Table 2. 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 UM1570
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2 Quick start
The STM32F3DISCOVERY is a low-cost and easy-to-use development kit to quickly
evaluate and start development with an STM32 F3 series microcontroller. Before installing
and using the product, please accept the Evaluation Product License Agreement from
www.st.com/stm32f3discovery. For more information on the STM32F3DISCOVERY and for
demonstration software, visit www.st.com/stm32f3discovery.
2.1 Getting started
Follow the sequence below to configure the STM32F3DISCOVERY board and launch the
DISCOVER application:
1. Check the jumper positions on the board, JP3 on, CN4 on (DISCOVERY selected).
2. Connect the STM32F3DISCOVERY board to a PC with a USB cable type A to mini-B
through the USB ST-LINK or USB USER connector to power the board. The red LEDs
LD1 (PWR) and LD2 (COM) light up.
3. The eight LED indicators blink sequentially.
4. Press the USER button to enable the MEMS gyroscope sensor.
5. Observe how the blinking of the LEDs indicates the gyroscope movements.
6. Press the USER button again to enable the MEMS e-compass sensor.
7. Keep the board in a horizontal position. One of the eight LEDs lights up to indicate the
direction of the north.
8. Tilt the board and the eight LEDs blink again
9. To examine or modify the Discover project related to this demo, visit
www.st.com/stm32f3discovery and follow the tutorial. Discover the STM32F303xx MCU
features, download and execute programs proposed in the list of projects.
10. Develop your own application using the 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 STM32F3DISCOVERY
●Altium®, TASKING™ VX-toolset
●ARM®, Atollic TrueSTUDIO®
●IAR™, EWARM (IAR Embedded Workbench®)
●Keil™, MDK-ARM™
2.4 Order code
To order the STM32F303xx Discovery kit, use the order code STM32F3DISCOVERY.

UM1570 Features
Doc ID 023594 Rev 2 7/36
3 Features
The STM32F3DISCOVERY offers the following features.
●STM32F303VCT6 microcontroller featuring 256 KB of Flash memory, 48 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 the USB bus or from an external 3 V or 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.
●Te n L E D s :
– LD1 (red) for 3.3 V power-on.
– LD2 (red/green) for USB communication.
– Eight user LEDs, LD3/10 (red), LD4/9 (blue), LD5/8 (orange) and LD6/7 (green).
●Two pushbuttons (user and reset).
●USB USER with Mini-B connector.
●Extension header for LQFP100 I/Os for quick connection to prototyping board and easy
probing.
A large number of free ready-to-run application firmware examples are available at
www.st.com/stm32f3discovery to support quick evaluation and development.

Hardware and layout UM1570
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4 Hardware and layout
The STM32F3DISCOVERY is designed around the STM32F303VCT6 microcontroller in a
100-pin LQFP package.
Figure 2 illustrates the connections between the STM32F303VCT6 and its peripherals
(ST-LINK/V2, pushbutton, LED, USB, Gyroscope ST MEMS, E-compass with accelerometer
ST MEMS, and connectors).
Figure 2 and Figure 3 help you to locate these features on the STM32F3DISCOVERY.
Figure 2. Hardware block diagram
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UM1570 Hardware and layout
Doc ID 023594 Rev 2 9/36
Figure 3. Board layout (top view)
Note: Pin 1 of CN3, CN4, JP3, JP4, P1 and P2 connectors are identified by a square.
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BLUE,%$,$
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Hardware and layout UM1570
10/36 Doc ID 023594 Rev 2
Figure 4. Board layout (bottom view)
Note: If SB12 is ON, SB17 must be OFF and R33 removed to provide the clock source from MCO
correctly.
RoHS SN
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