Datenblatt für STM32F411E-DISCO User Manual von STMicroelectronics

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September 2020 UM1842 Rev 2 1/36
1
UM1842
User manual
Discovery kit with STM32F411VE MCU
Introduction
The Discovery kit (32F411EDISCOVERY) helps users to discover the STM32F411 entry-
level microcontrollers in the STM32F4 Series, and develop their applications easily. It offers
everything required for beginners and experienced users to get started quickly.
Based on the STM32F411VE, it includes an ST-LINK/V2 embedded debug tool, a
gyroscope, an e-compass, a digital microphone, an audio DAC with integrated class-D
speaker driver, an OTG Micro-AB connector, LEDs, and push-buttons.
Figure 1. 32F411EDISCOVERY board
Picture is not contractual.
www.st.com
Contents UM1842
2/36 UM1842 Rev 2
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 Embedded ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1.1 Using ST-LINK/V2 to program/debug the on-board STM32F411VET6 . 14
6.1.2 Using ST-LINK/V2 to program/debug an external STM32 application . . 15
6.2 Power supply and power selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.3 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.4 Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.5 On-board audio capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.6 USB OTG supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.7 E-compass MEMS (ST MEMS LSM303DLHC or LSM303AGR) . . . . . . . 17
6.8 Gyroscope MEMS (ST MEMS L3GD20 or I3G4250D) . . . . . . . . . . . . . . 17
6.9 JP2 (Idd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.10 OSC clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.10.1 OSC clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.10.2 OSC 32 KHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.11 BOOT0 configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.12 Solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.13 Extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
UM1842 Rev 2 3/36
UM1842 Contents
3
7 Mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8 32F411EDISCOVERY information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.1 Product marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.2 Board revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.2.1 MB1115 (STM32F411E-DISCO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.3 Known limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.3.1 MB1115 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Appendix A Federal Communications Commission (FCC) and
ISED Canada Compliance Statements. . . . . . . . . . . . . . . . . . . . . . . 32
A.1 FCC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
A.2 ISED Compliance Statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Appendix B CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
B.1 Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
List of tables UM1842
4/36 UM1842 Rev 2
List of tables
Table 1. Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 2. Codification explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 4. Jumper states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 5. Debug connector CN2 (SWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 6. Solder bridges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 7. MCU pin description versus board function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 8. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
UM1842 Rev 2 5/36
UM1842 List of figures
5
List of figures
Figure 1. 32F411EDISCOVERY board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Hardware block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 3. Top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4. Bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5. Typical configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 6. 32F411EDISCOVERY connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 7. ST-LINK connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 8. 32F411EDISCOVERY board mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
arm
Features UM1842
6/36 UM1842 Rev 2
1 Features
•STM32F411VE Arm®(a)-based microcontroller featuring 512 Kbytes of Flash memory
and 128 Kbytes of RAM in an LQFP100 package
•USB OTG FS
•ST MEMS 3-axis digital output gyroscope
•ST MEMS 3D digital linear accelerometer and magnetic sensor
•ST MEMS digital microphone
•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 user and reset push-buttons
•Board connectors:
– USB OTG FS Micro-AB connector
– ST-LINK Mini-B USB connector
– Extension header for all LQFP100 I/Os for quick connection to the prototype board
and easy probing
•Flexible power-supply options:
– ST-LINK USB connector
– External 5 V supply voltage
•On-board ST-LINK/V2 debugger/programmer with mode selection switch to use the kit
as a standalone ST-LINK probe (featuring an SWD connector for programming and
debugging)
•Comprehensive free software including a variety of examples, part of the
STM32CubeF4 MCU Package or STSW-STM32136 for legacy Standard Libraries
usage
•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.
UM1842 Rev 2 7/36
UM1842 Ordering information
35
2 Ordering information
To order the Discovery kit (32F411EDISCOVERY), refer to Table 1. Additional information is
available from the datasheet and reference manual of the target STM32.
2.1 Codification
The meaning of the codification is explained in Table 2.
Table 1. Ordering information
Order code Board
reference Target STM32 Differentiating features
STM32F411E-
DISCO
MB1115B
STM32F411VET6
– L3GD20 3-axis gyroscope(1)
– LSM303DLHC e-compass
– MP45DT02 digital MEMS microphone(1)
1. Obsolete.
MB1115D
– I3G4250D 3-axis gyroscope
– LSM303AGR e-compass
– IMP34DT05 digital MEMS microphone
Table 2. Codification explanation
32XXYYZDISCOVERY Description Example: 32F411EDISCOVERY
32XX MCU series in STM32 32-bit Arm
Cortex MCUs STM32F4 Series
YY MCU product line in the series STM32F411
ZSTM32 Flash memory size:
E for 512 Kbytes 512 Kbytes
DISCOVERY Discovery kit Discovery kit
Development environment UM1842
8/36 UM1842 Rev 2
3 Development environment
3.1 System requirements
•Windows® OS (7, 8, and 10)
•USB Type-A or USB Type-C® to Mini-B cable
3.2 Development toolchains
•IAR Systems- IAR Embedded Workbench®(a)
•Keil® - MDK-ARM(a)
•STMicroelectronics - STM32CubeIDE
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 conventions used for the ON and OFF settings in the present
document.
In this document, board figures and photos are based on version B, version D is similar.
a. On Windows® only.
Table 3. ON/OFF conventions
Convention Definition
Jumper JPx ON Jumper fitted
Jumper JPx OFF Jumper not fitted
Jumper JPx [1-2] Jumper fitted between Pin 1 and Pin 2
Solder bridge SBx ON SBx connections closed by 0 Ω resistor
Solder bridge SBx OFF SBx connections left open
Resistor Rx ON Resistor soldered
Resistor Rx OFF Resistor not soldered
UM1842 Rev 2 9/36
UM1842 Quick start
35
5 Quick start
The Discovery kit (32F411EDISCOVERY) is a low-cost and easy-to-use development kit to
quickly evaluate and start 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 32F411EDISCOVERY board and for demonstration software,
visit www.st.com/stm32f4-discovery.
5.1 Getting started
Follow the sequence below to configure the 32F411EDISCOVERY board and launch the
DISCOVER application:
1. Ensure that the jumpers JP2 and CN3 are ON (Discovery mode).
2. Connect the board to a PC using a USB Type-A or USB Type-C® to Mini-B cable
through the USB ST-LINK connector CN1 to power the board. The LED LD2 (PWR)
lights up and the four LEDs between the B1 and B2 buttons start blinking.
3. Press the B1 user button to enable the MEMS sensor. The four LEDs indicate the
board inclination with respect to X and Y axes. When connected through CN5 to a PC
with a second USB Type-A or USB Type-C® to Micro-B cable, the board is recognized
as a standard mouse. Tilt the board relative to the horizontal plane to move the cursor
on the screen.
4. The demo software, as well as other software examples that allow the user to discover
the STM32 F4 series features, are available on www.st.com/stm32f4-discovery.
Hardware layout UM1842
10/36 UM1842 Rev 2
6 Hardware layout
The 32F411EDISCOVERY board has been designed around the STM32F411VET6
microcontroller in a 100-pin LQFP package.
Figure 2 illustrates the connections between the STM32F411VET6 and its peripherals (ST-
LINK/V2, pushbutton, LED, Audio DAC, USB, ST MEMS gyroscope, ST MEMS
accelerometer + magnetometer, ST MEMS microphone, and connectors).
Figure 3 and Figure 4 help you to locate these features on the 32F411EDISCOVERY board.
Figure 2. Hardware block diagram
Embedded
ST-LINK/V2
STM32F411VET6
I/O I/O
I/O RESET
LEDs
LD3...LD8
MP45DT02 or
IMP34DT05
B2
RESET
B1
USER
L3GD20 or
I3G4250D
Micro-USB
Mini-USB
SWD
Header
Header
CS43L22
Mini-Jack LSM303DLHC or
LSM303AGR MS36903V2
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UM1842 Rev 2 11/36
UM1842 Hardware layout
35
Figure 3. Top layout
MSv36904V1
ST-LINK/V2
S
T-LINK
/
V2
LD1 (red/green LED)
COM
CN2
SWD connector
LD2 (red LED)
PWR
CN3
ST-LINK/DISCOVERY selector
STM32F411VET6
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
STM32F411E-DISCO
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Hardware layout UM1842
12/36 UM1842 Rev 2
Figure 4. Bottom layout
MS32362V1
SB3, SB5, SB7, SB9
(DEFAULT) SB10, SB11 (RX, TX)
SB2, SB4, SB6, SB8
(RESERVED)
SB15 (SWO)
SB16 (X2 crystal)
SB17 (X3 crystal)
SB18 (X3 crystal)
SB19 (BOOT0)
SB12 (STM_RST)
SB14 (X2 crystal)
SB13 (NRST)
SB20 (BOOT1)
SB21 (B1-USER)
UM1842 Rev 2 13/36
UM1842 Hardware layout
35
6.1 Embedded ST-LINK/V2
The ST-LINK/V2 programming and debugging tool is integrated on the
32F411EDISCOVERY board. The embedded ST-LINK/V2 can be used in 2 different ways
according to the jumper states (see Table 4):
•Program/debug the MCU on board,
•Program/debug an MCU in an external application board using a cable connected to
SWD connector CN2.
The embedded ST-LINK/V2 supports only SWD for STM32 devices. For information about
debugging and programming features, refer to user manual UM1075 (ST-LINK/V2 in-circuit
debugger/programmer for STM8 and STM32) which describes in detail all the ST-LINK/V2
features.
Figure 5. Typical configuration
Table 4. Jumper states
Jumper state Description
Both CN3 jumpers ON ST-LINK/V2 functions enabled for on-board programming (default)
Both CN3 jumpers OFF ST-LINK/V2 functions enabled for application through external
CN2 connector (SWD supported)
MSv36913V2
Hardware requirements:
- Computer with Windows 7, 8 or 10
- USB Type-A or USB Type-C® to Mini-B cable
Development toolchains:
- IAR Systems - IAR Embedded Workbench®
- Keil® - MDK-ARM
- STMicroelectronics - STM32CubeIDE
CN2 SWD connector Swami ‘ E-msou 0N3 jumpers 0N
Hardware layout UM1842
14/36 UM1842 Rev 2
6.1.1 Using ST-LINK/V2 to program/debug the on-board STM32F411VET6
To program the on-board STM32F411VET6, simply plug in the two jumpers on CN3, as
shown in Figure 6 in red, but do not use the CN2 connector as that may disturb
communication with the STM32F411VE of the 32F411EDISCOVERY board.
Figure 6. 32F411EDISCOVERY connections image
STM32F411VET6
C N2 SWD connector DISCOVERY CNS jumpers OFF
UM1842 Rev 2 15/36
UM1842 Hardware layout
35
6.1.2 Using ST-LINK/V2 to program/debug an external STM32 application
It is very easy to use the ST-LINK/V2 to program the STM32 on an external application.
Simply remove the two jumpers from CN3 as shown in Figure 7, and connect the application
to the CN2 debug connector according to Table 5.
Note: SB13 must be OFF to use CN2 pin 5 in the external application.
Figure 7. ST-LINK connections image
Table 5. Debug connector CN2 (SWD)
Pin CN2 Designation
1 VDD_TARGET VDD from application
2 SWCLK SWD clock
3 GND Ground
4 SWDIO SWD data input/output
5 NRST RESET of target MCU
6 SWO Reserved
STM32F411VET6
Hardware layout UM1842
16/36 UM1842 Rev 2
6.2 Power supply and power selection
The power supply is provided either by the host PC through the USB cable, or by an
external 5 V power supply.
The D1 and D2 diodes protect the 5 V and 3 V pins from external power supplies:
•5 V and 3 V can be used as output power supplies when another application board is
connected to pins P1 and P2.
In this case, the 5 V and 3 V pins deliver a 5 V or 3 V power supply, and the power
consumption must be lower than 100 mA.
•5 V can also be used as input power supplies, e.g. when the USB connector is not
connected to the PC.
In this case, the 32F411EDISCOVERY board must be powered by a power supply unit
or auxiliary equipment complying with standard EN-60950-1: 2006+A11/2009, and
must be Safety Extra Low Voltage (SELV) with limited power capability.
6.3 LEDs
•LD1 COM:
The LD1 default status is red. LD1 turns to green to indicate that communications are in
progress between the PC and the ST-LINK/V2.
•LD2 PWR:
The red LED indicates that the board is powered.
•User LD3:
The orange LED is a user LED connected to the I/O PD13 of the STM32F411VET6.
•User LD4:
The green LED is a user LED connected to the I/O PD12 of the STM32F411VET6.
•User LD5:
The red LED is a user LED connected to the I/O PD14 of the STM32F411VET6.
•User LD6:
The blue LED is a user LED connected to the I/O PD15 of the STM32F411VET6.
•USB LD7:
The green LED indicates when VBUS is present on CN5 and is connected to PA9 of
the STM32F411VET6.
•USB LD8:
The red LED indicates an overcurrent from VBUS of CN5 and is connected to the I/O
PD5 of the STM32F411VET6.
6.4 Pushbuttons
•B1 USER:
User and Wake-Up button connected to the I/O PA0 of the STM32F411VE.
•B2 RESET:
The pushbutton connected to NRST is used to RESET the STM32F411VE.
UM1842 Rev 2 17/36
UM1842 Hardware layout
35
6.5 On-board audio capability
The 32F411EDISCOVERY uses an audio DAC (CS43L22) to output sounds through the
audio mini-jack connector.
The 32F411EDISCOVERY controls the audio DAC through the I2C interface and processes
digital signals through an I2S connection or analog input signal.
•The sound can come independently from different inputs:
– The ST MEMS microphone (MP45DT02 or IMP34DT05): digital using PDM
protocol or analog when using the low pass filter.
– The USB connector: from external mass storage such as a USB key, USB HDD,
and so on.
– The internal memory of the STM32F411VET6.
•The sound can be output in different ways through audio DAC:
– Using the I2S protocol
– Using the microphone output directly via a low pass filter to analog input AIN4x of
the CS43L22
6.6 USB OTG supported
The STM32F411VET6 is used to drive only USB OTG full speed on this board. The USB
micro-AB connector (CN5) allows the user to connect a host or device component, such as
a USB key, mouse, and so on.
Two LEDs are dedicated to this module:
•LD7 (green LED) indicates when VBUS is active
•LD8 (red LED) indicates an overcurrent from a connected device.
6.7 E-compass MEMS (ST MEMS LSM303DLHC or LSM303AGR)
The LSM303DLHC or LSM303AGR is an ultra-compact low-power system-in-package
featuring a 3D digital linear acceleration sensor and a 3D digital magnetic sensor. It includes
a sensing element and an IC interface able to provide the measured acceleration to the
external world through an I2C serial interface.
The LSM303DLHC has dynamically user-selectable full scales of ± 2g/± 8g and is capable
of measuring the acceleration, and a magnetic field full scale from ±1.3 g to 8.1 g with an
output data rate of 100 Hz or 400 Hz.
The LSM303AGR has linear acceleration full scales of ± 2g/± 4g/± 8g/± 16g and a magnetic
field dynamic range of ±50 gauss with an output data rate of 100 kHz, 400 kHz, 1 MHz, and
3.4 MHz.
The STM32F411VET6 MCU controls this motion sensor through the I2C interface.
6.8 Gyroscope MEMS (ST MEMS L3GD20 or I3G4250D)
The L3GD20 or I3G4250D is an ultra-compact, low-power, three-axis angular rate sensor. It
includes a sensing element and an IC interface able to provide the measured angular rate to
the external world through the I2C/SPI serial interface.
Hardware layout UM1842
18/36 UM1842 Rev 2
The L3GD20 has dynamically user-selectable full scales of ± 250 dps / 500 dps / ±2000 dps
and is capable of measuring rates.
The I3G4250D has a selectable full scale ±245 dps / ±500 dps / ±2000 dps and is capable of
measuring rates with a user-selectable bandwidth.
The STM32F411VET6 MCU controls this motion sensor through the SPI interface.
6.9 JP2 (Idd)
Jumper JP2, labeled Idd, allows the consumption of STM32F411VE to be measured by
removing the jumper and connecting an ammeter.
•When the jumper is ON, STM32F411VET6 is powered (default).
•When the jumper is OFF, an ammeter must be connected to measure the
STM32F411VE current. Without an ammeter, the STM32F411VET6 is not powered.
6.10 OSC clock
6.10.1 OSC clock supply
If PH0 and PH1 are only used as GPIOs instead of as a clock, then SB14 and SB16 are ON.
R24, R25, and R66 are OFF.
MCO from ST-LINK (from MCO of the STM32F103)
This frequency cannot be changed, it is fixed at 8 MHz and connected to PH0-OSC_IN of
the STM32F411VET6. The configuration needed is:
– SB14, SB16 OFF
–R25 OFF
–R66 ON
On-board oscillator (from X2 crystal)
For typical frequencies and its capacitors and resistors, please refer to the
STM32F411VET6 datasheet. The configuration needed is:
– SB14, SB16 OFF
–R25 ON
–R66 OFF
Oscillator from external PH0 (from external oscillator through pin 7 of the P2 connector)
The configuration needed is:
–SB14 ON
–SB16 ON
– R25 and R66 OFF
6.10.2 OSC 32 KHz clock supply
If PC14 and PC15 are only used as GPIOs instead of as a clock, then SB17 and SB18 are
ON, while R21 and R22 are OFF.
UM1842 Rev 2 19/36
UM1842 Hardware layout
35
On-board oscillator (from X1 Crystal (not provided))
The configuration needed is:
– SB17 and SB18 are OFF
– C20, C28, R21, and R22 are ON
Oscillator from external PC14 (from external oscillator trough the pin 9 of P2 connector)
The configuration needed is:
–SB17 ON
–SB18 ON
– R21 and R22 OFF
6.11 BOOT0 configuration
BOOT0 is at level “0” through a pull-down R28. If you want to set BOOT0 at level “1”, it can
be configured by setting a jumper between P2.21 (BOOT0) and P2.22 (VDD).
Note: If it is necessary to set BOOT0 at level "1" continuously, then open the SB19 solder bridge to
avoid consumption of 6 mA, while connecting P2 pins 21 and 22 with a jumper or with a
wire.
6.12 Solder bridges
Table 6. Solder bridges
Bridge State (1) Description
SB14,16 (X2 crystal)
OFF X2, C18, C19, R24, and R25 provide a clock.
PH0 and PH1 are disconnected from P2
ON PH0 and PH1 are connected to P2
R24, R25, and R66 must be OFF).
SB3,5,7,9 (Default) ON Reserved, do not modify
SB2,4,6,8 (Reserved) OFF Reserved, do not modify
SB17,18 (X3 crystal)
ON PC14 and PC15 are only connected to P2. Remove only R21, R22.
OFF X3, C20, C28, R21, and R22 deliver a 32 KHz clock.
PC14 and PC15 are not connected to P2.
SB1 (B2-RESET) ON B2 pushbutton is connected to the NRST pin of the STM32F411VET6 MCU
OF B2 pushbutton is not connected to the NRST pin of the STM32F411VET6 MCU
SB21 (B1-USER) ON B1 pushbutton is connected to PA0
OFF B1 pushbutton is not connected to PA0
SB13 (NRST)
ON NRST signal of the CN2 connector is connected to the NRST pin of the
STM32F411VET6 MCU
OFF NRST signal of the CN2 connector is not connected to the NRST pin of the
STM32F411VET6 MCU
Hardware layout UM1842
20/36 UM1842 Rev 2
6.13 Extension connectors
The male headers P1 and P2 can connect the 32F411EDISCOVERY board to a standard
prototyping/wrapping board. STM32F411VET6 GPI/Os are available on these connectors.
P1 and P2 can also be probed by an oscilloscope, logical analyzer, or voltmeter.
SB15 (SWO) ON SWO signal of the CN2 connector is connected to PB3
OFF SWO signal is not connected
SB10,11 (RX,TX) OFF Reserved, do not modify
ON Reserved, do not modify
SB12 (STM_RST) OFF No incidence on STM32F103C8T6 (ST-LINK/V2) NRST signal
ON STM32F103C8T6 (ST-LINK/V2) NRST signal is connected to GND
SB19 (BOOT0)
ON BOOT0 signal of the STM32F411VET6 MCU is held low through a 510 Ω pull-
down resistor
OFF BOOT0 signal of the STM32F411VET6 MCU is held high through a 10 KΩ pull-
up resistor
SB20 (BOOT1)
OFF The BOOT1 signal of the STM32F411VET6 MCU is held high through a 10 KΩ
pull-up resistor
ON The BOOT1 signal of the STM32F411VET6 MCU is held low through a 510 Ω
pull-down resistor
1. Default solder bridge state is shown in bold.
Table 6. Solder bridges (continued)
Bridge State (1) Description
Table 7. MCU pin description versus board function (page 1 of 9)(1)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02 or IMP34DT05
L3GD20 or I3G4250D
LSM303DLHC or LSM303AGR
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5
CN2
P1
P2
BOOT0 - 94 - - - - - - - - - - - - - -21
NRST - 14 - - - -
RESET
- - - - - - - - - -
UM1842 Rev 2 21/36
UM1842 Hardware layout
35
PA0-
WKUP
TIM2_CH1/TIM2_ETR,
TIM5_CH1,
USART2_CTS,
ADC1_0, WKUP
23 - - - -
USER
- - - - - - - - - -
PA1
TIM2_CH2, TIM5_CH2,
USART2_RTS,
ADC1_1
24 - - - - - - - - - - - - - - -
PA2
TIM2_CH3, TIM5_CH3,
TIM9_CH1,
USART2_TX, ADC1_2
25 - - - - - - - - - - - - -14 -
PA3
TIM2_CH4, TIM5_CH4,
TIM9_CH2,
USART2_RX, ADC1_3
26 - - - - - - - - - - - - -13 -
PA4
SPI1_NSS,
SPI3_NSS/I2S3_WS,
USART2_CK, ADC1_4
29
LRCK/AIN1x
- - - - - - - - - - - -16 -
PA5 TIM2_CH1/TIM2_ETR,
SPI1_SCK, ADC1_5 30 - -
SCL/SPC
- - - - - - - - - -15 -
PA6
TIM1_BKIN,
TIM3_CH1,
SPI1_MISO, ADC1_6
31 - -
SDO
- - - - - - - - - -18 -
PA7
TIM1_CH1N,
TIM3_CH2,
SPI1_MOSI, ADC1_7
32 - -
SDA/SDI/SDO
- - - - - - - - - -17 -
Table 7. MCU pin description versus board function (page 2 of 9)(1) (continued)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02 or IMP34DT05
L3GD20 or I3G4250D
LSM303DLHC or LSM303AGR
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5
CN2
P1
P2
Hardware layout UM1842
22/36 UM1842 Rev 2
PA8
MCO_1, TIM1_CH1,
I2C3_SCL,
USART1_CK,
USB_FS_SOF
67 - - - - - - - - - - - - - -43
PA9
TIM1_CH2,
I2C3_SMBAL,
USART1_TX,
USB_FS_VBUS
68 - - - - -
GREEN
-
VBUS
- - -1 - -44
PA10
TIM1_CH3,
USART1_RX,
USB_FS_ID
69 - - - - - - -
ID
- - -4 - -41
PA11
TIM1_CH4,
USART1_CTS,
USART6_TX,
USB_FS_DM
70 - - - - - - -
DM
- - -2 - - -
PA12
TIM1_ETR,
USART1_RTS,
USART6_RX,
USB_FS_DP
71 - - - - - - -
DP
- - -3 - - -
PA13 JTMS-SWDIO 72 - - - - - -
SWDIO
- - - - -4 -42
PA14 JTCK-SWCLK,
I2S3ext_WS 76 - - - - - -
SWCLK
- - - - -2 -39
PA15
JTDI,
TIM2_CH1/TIM2_ETR,
SPI1_NSS,
SPI3_NSS/I2S3_WS
77 - - - - - - - - - - - - - -40
PB0 TIM1_CH2N,
TIM3_CH3, ADC1_8 35 - - - - - - - - - - - - -22 -
Table 7. MCU pin description versus board function (page 3 of 9)(1) (continued)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02 or IMP34DT05
L3GD20 or I3G4250D
LSM303DLHC or LSM303AGR
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5
CN2
P1
P2
UM1842 Rev 2 23/36
UM1842 Hardware layout
35
PB1 TIM1_CH3N,
TIM3_CH4, ADC1_9 36 - - - - - - - - - - - - -21 -
PB2 37 - - - - - - - - - - - - -24 -
PB3
JTDO-SWO,
TIM2_CH2, SPI1_SCK,
SPI3_SCK/I2S3_CK,
I2C2_SDA
89 - - - - - -
SWO
- - - - -6 -28
PB4
JTRST, TIM3_CH1,
SPI1_MISO,
SPI3_MISO,
I2S3ext_SD, I2C3_SDA
90 - - - - - - - - - - - - - -25
PB5
TIM3_CH2,
I2C1_SMBAL,
SPI1_MOSI,
SPI3_MOSI/I2S3_SD
91 - - - - - - - - - - - - - -26
PB6
TIM4_CH1, I2C1_SCL,
USART1_TX,
USB_FS_INT
92
SCL
- -
SCL
- - - - - - - - - -23
PB7 TIM4_CH2, I2C1_SDA,
USART1_RX 93 - - - - - - - - - - - - - -24
PB8
TIM4_CH3,
TIM10_CH1,
I2C1_SCL,
USB_FS_SCL,
SDIO_D4
95 - - - - - - - - - - - - - -19
PB9
TIM4_CH4,
TIM11_CH1,
I2C1_SDA,
SPI2_NSS/I2S2_WS,
USB_FS_SDA,
SDIO_D5
96
SDA
- -
SDA
- - - - - - - - - -20
Table 7. MCU pin description versus board function (page 4 of 9)(1) (continued)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02 or IMP34DT05
L3GD20 or I3G4250D
LSM303DLHC or LSM303AGR
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5
CN2
P1
P2
Hardware layout UM1842
24/36 UM1842 Rev 2
PB10 TIM2_CH3, I2C2_SCL,
SPI2_SCK/I2S2_CK 47 - - - - - - - - - - - - -34 -
VCAP1 - 48 - - - - - - - - - - - - -35 -
PB12
TIM1_BKIN,
I2C2_SMBAL,
SPI2_NSS/I2S2_WS,
I2S2ext_WS
51 - - - - - - - - - - - - -36 -
PB13
TIM1_CH1N,
SPI2_SCK/I2S2_CK,
I2S2ext_CK
52 - - - - - - - - - - - - -37 -
PB14
TIM1_CH2N,
SPI2_MISO,
I2S2ext_SD
53 - - - - - - - - - - - - -38 -
PB15
RTC_50Hz,
TIM1_CH3N,
SPI2_MOSI/I2S2_SD,
I2S2ext_MISO
54 - - - - - - - - - - - - -39 -
PC0 ADC1_10 15 - - - - - - -
PowerOn
- - - - -8 -
PC1 ADC1_11 16 - - - - - - - - - - - - -7 -
PC2 SPI2_MISO,
I2S2ext_SD, ADC1_12 17 - - - - - - - - - - - - -10 -
PC3 SPI2_MOSI/I2S2_SD,
ADC1_13 18
AIN4x
PDM_OUT
- - - - - - - - - - -9 -
PC4 ADC1_14 33 - - - - - - - - - - - - -20 -
PC5 ADC1_15 34 - - - - - - - - - - - - -19 -
Table 7. MCU pin description versus board function (page 5 of 9)(1) (continued)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02 or IMP34DT05
L3GD20 or I3G4250D
LSM303DLHC or LSM303AGR
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5
CN2
P1
P2
UM1842 Rev 2 25/36
UM1842 Hardware layout
35
PC6 TIM3_CH1, I2S2_MCK,
USART6_TX, SDIO_D6 63 - - - - - - - - - - - - - -47
PC7 TIM3_CH2, I2S3_MCK,
USART6_RX, SDIO_D7 64
MCLK
- - - - - - - - - - - - -48
PC8
MCO_CPUCK,
TIM3_CH3,
USART6_CK, SDIO_D0
65 - - - - - - - - - - - - - -45
PC9
MCO_2, TIM3_CH4,
I2C3_SDA, I2S2_CKIN,
SDIO_D1
66 - - - - - - - - - - - - - -46
PC10
I2S3ext_CK,
SPI3_SCK/I2S3_CK,
SDIO_D2
78
SCLK
- - - - - - - - - - - - -37
PC11 I2S3ext_SD,
SPI3_MISO, SDIO_D3 79
- - - - - - - - - - - - -38
PC12
I2S3ext_MISO,
SPI3_MOSI/I2S3_SD,
SDIO_CK
80
SDIN
- - - - - - - - - - - - -35
PC13 TAMP_1 7 - - - - - - - - - - - - - -12
PC14 OSC32_IN 8 - - - - - - - -
OSC32_IN
- - - - -9
PC15 OSC32_OUT 9 - - - - - - - -
OSC32_OUT
- - - - -10
PD0 - 81 - - - - - - - - - - - - - -36
PD1 - 82 - - - - - - - - - - - - - -33
Table 7. MCU pin description versus board function (page 6 of 9)(1) (continued)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02 or IMP34DT05
L3GD20 or I3G4250D
LSM303DLHC or LSM303AGR
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5
CN2
P1
P2
Hardware layout UM1842
26/36 UM1842 Rev 2
PD2 - 83 - - - - - - - - - - - - - -34
PD3 - 84 - - - - - - - - - - - - - -31
PD4 - 85
RESET
- - - - - - - - - - - - -32
PD5 - 86 - - - - -
RED
- - - - - - - - -
PD6 - 87 - - - - - - - - - - - - - - -
PD7 - 88 - - - - - - - - - - - - - - -
PD8 - 55 - - - - - - - - - - - - -40
PD9 - 56 - - - - - - - - - - - - -41
PD10 - 57 - - - - - - - - - - - - -42
PD11 - 58 - - - - - - - - - - - - -43
PD12 TIM4_CH1 59 - - - - -
GREEN
- - - - - - -44 -
PD13 TIM4_CH2 60 - - - - -
ORANGE
- - - - - - -45 -
PD14 TIM4_CH3 61 - - - - -
RED
- - - - - - -46 -
PD15 TIM4_CH4 62 - - - - -
BLUE
- - - - - - -47 -
PE0 TIM4_ETR 97 - -
INT1
- - - - - - - - - - -17
PE1 - 98 - -
INT2
- - - - - - - - - - -18
Table 7. MCU pin description versus board function (page 7 of 9)(1) (continued)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02 or IMP34DT05
L3GD20 or I3G4250D
LSM303DLHC or LSM303AGR
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5
CN2
P1
P2
UM1842 Rev 2 27/36
UM1842 Hardware layout
35
PE2 - 1 - - -
DRDY
- - - - - - - - - -15
PE3 - 2 - -
CS_I2C/SPI
- - - - - - - - - - -16
PE4 - 3 - - - - - - - - - - - - - -13
PE5 - 4 - - - - - - - - - - - - - -14
PE6 - 5 - - - - - - - - - - - - - -11
PE7 - 38 - - -- - - - - - - - - -25 -
PE8 - 39 - - - - - - - - - - - - -26 -
PE9 - 40 - - - - - - - - - - - - -27 -
PE10 - 41 - - - - - - - - - - - - -28 -
PE11 TIM1_CH2, SPI4_NSS42 - - - - - - - - - - - - -29-
PE12 TIM1_CH3N,
SPI4_SCK 43 - - - - - - - - - - - - -30 -
PE13TIM1_CH3, SPI4_MISO44 - - - - - - - - - - - - -31 -
PE14TIM1_CH4, SPI4_MOSI45-------------32 -
PE15 TIM1_BKIN 46 - - - - - - - - - - - - -33 -
PH0 OSC_IN 12 - - - - - - - -
OSC_IN
- - - - -7
PH1 OSC_OUT 13 - - - - - - - -
OSC_OUT
- - - - -8
Table 7. MCU pin description versus board function (page 8 of 9)(1) (continued)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02 or IMP34DT05
L3GD20 or I3G4250D
LSM303DLHC or LSM303AGR
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5
CN2
P1
P2
Hardware layout UM1842
28/36 UM1842 Rev 2
- - - - - - - - - - - - -
5 V
- - -3
- - - - - - - - - - - - -
5 V
- - -4
- - - - - - - - - - - - -
3 V
- - -5
- - - - - - - - - - - - -
3 V
- - -6
- - - - - - - - - - - - -
VDD
- -3 22
- - - - - - - - - - - - -
VDD
- -4 -
-- - - -----
GND
GND
- -
GND
531 -
- - - - - - - - - - - - -
GND
- -2 -
- - - - - - - - - - - - -
GND
- -5 -
- - - - - - - - - - - - -
GND
- -23-
- - - - - - - - - - - - -
GND
- -49 -
- - - - - - - - - - - -
GND
--50 -
1. The default configuration for the functions used on the boards, is shown in grey.
Table 7. MCU pin description versus board function (page 9 of 9)(1) (continued)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02 or IMP34DT05
L3GD20 or I3G4250D
LSM303DLHC or LSM303AGR
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5
CN2
P1
P2
6.33mm 6.33mm 33.82mm r—u 3.34mm 97.00mm llllllllllll =3 com/stm32f4-discoveryl [In I‘: aIIIIIIII||lll||lllll|llll IEEEKC “Hg-I I.“ an mum 3;: 0W fiI E £5 E g g; at a: n N E E w m o' w E E N N N' L 3.34mm 0 § E D . E E S E at; E 3’2 a: m E «'3 I7» M81115! n E E \D 63 O \D E E N “I N
UM1842 Rev 2 29/36
UM1842 Mechanical drawing
35
7 Mechanical drawing
Figure 8. 32F411EDISCOVERY board mechanical drawing
E
MS36906V1
32F411EDISCOVERY information UM1842
30/36 UM1842 Rev 2
8 32F411EDISCOVERY information
8.1 Product marking
The sticker located on the top or bottom side of the PCB board shows the information about
product identification such as board reference, revision, and serial number.
The first identification line has the following format: “MBxxxx-Variant-yzz”, where “MBxxxx”
is the board reference, “Variant” (optional) identifies the mounting variant when several
exist, "y" is the PCB revision and "zz" is the assembly revision: for example B01.
The second identification line is the board serial number used for traceability.
Evaluation tools marked as “ES” or “E” are not yet qualified and therefore not ready to be
used as reference design or in production. Any consequences deriving from such usage will
not be at ST charge. In no event, ST will be liable for any customer usage of these
engineering sample tools as reference designs or in production.
“E” or “ES” marking examples of location:
•On the target STM32 that is soldered on the board (for illustration of STM32 marking,
refer to the STM32 datasheet “Package information” paragraph at the www.st.com
website).
•Next to the evaluation tool ordering part number that is stuck or silk-screen printed on
the board.
The board reference for the 32F411EDISCOVERY base board is MB1115.
8.2 Board revision history
8.2.1 MB1115 (STM32F411E-DISCO)
Revision B02
The revision B-02 of the MB1115 board is the initial official release.
Revision B03
This version is the same as B-02, only the silkscreen is modified from STM32F401C-DISCO
to STM32F411E-DISCO directly on the Gerber.
Revision D01
MEMS parts are updated in this version:
1. U10 is modified to IMP34DT05TR,
2. U5 is modified to LSM303AGR,
3. and U7 is modified to I3G4250D.
UM1842 Rev 2 31/36
UM1842 32F411EDISCOVERY information
35
8.3 Known limitations
8.3.1 MB1115
Revision B02
None
Revision B03
None
Revision D01
None
Federal Communications Commission (FCC) and ISED Canada Compliance Statements UM1842
32/36 UM1842 Rev 2
Appendix A Federal Communications Commission (FCC)
and
ISED Canada Compliance Statements
A.1 FCC Compliance Statement
Part 15.19
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired
operation.
Part 15.21
Any changes or modifications to this equipment not expressly approved by
STMicroelectronics may cause harmful interference and void the user’s authority to operate
this equipment.
Part 15.105
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and the receiver.
•Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
Note: Use only shielded cables.
Responsible party (in the USA)
Terry Blanchard
Americas Region Legal | Group Vice President and Regional Legal Counsel, The Americas
STMicroelectronics, Inc.
750 Canyon Drive | Suite 300 | Coppell, Texas 75019
USA
Telephone: +1 972-466-7845
UM1842 Rev 2 33/36
UM1842 Federal Communications Commission (FCC) and ISED Canada Compliance Statements
35
A.2 ISED Compliance Statement
This device complies with FCC and ISED Canada RF radiation exposure limits set forth for
general population for mobile application (uncontrolled exposure). This device must not be
collocated or operating in conjunction with any other antenna or transmitter.
Compliance Statement
Notice: This device complies with ISED Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interference that
may cause undesired operation of the device.
ISED Canada ICES-003 Compliance Label: CAN ICES-3 (B) / NMB-3 (B).
Déclaration de conformité
Avis: Le présent appareil est conforme aux CNR d'ISDE Canada applicables aux appareils
radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1)
l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout
brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le
fonctionnement.
Étiquette de conformité à la NMB-003 d'ISDE Canada : CAN ICES-3 (B) / NMB-3 (B).
CE conformity UM1842
34/36 UM1842 Rev 2
Appendix B CE conformity
B.1 Warning
EN 55032 / CISPR32 (2012) Class B product
Warning: this device is compliant with Class B of EN55032 / CISPR32. In a residential
environment, this equipment may cause radio interference.
Avertissement : cet équipement est conforme à la Classe B de la EN55032 / CISPR 32.
Dans un environnement résidentiel, cet équipement peut créer des interférences radio.
UM1842 Rev 2 35/36
UM1842 Revision history
35
Revision history
Table 8. Document revision history
Date Revision Changes
16-Dec-2014 1 Initial release.
22-Sep-2020 2
Added sensor differences for board variants in Ordering information
and reorganized the entire document:
– Updated Introduction, Features, Ordering information,
Development environment, Development toolchains and
Demonstration software
– Added Codification, Section 8: 32F411EDISCOVERY information,
Appendix A: Federal Communications Commission (FCC) and
ISED Canada Compliance Statements, and Appendix B: CE
conformity
– Removed Electrical schematics
UM1842
36/36 UM1842 Rev 2
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