ST UM2135 User manual

December 2021 UM2135 Rev 2 1/43
1
UM2135
User manual
Discovery kit with STM32F413ZH MCU
Introduction
With the STM32F413 Discovery kit (32F413HDISCOVERY), users develop applications
easily on the STM32F4 Series high-performance microcontrollers based on Arm®
Cortex®-M4 core. The Discovery kit combines the STM32F413 features with 240×240 pixel
LCD with touch panel, LEDs, I2S audio codec, MEMS microphones, USB OTG FS,
Quad-SPI NOR Flash memory, and microSD™ card connector.
An embedded ST-LINK/V2-1 debugger/programmer is included. Specialized add-on boards
can be connected through the ARDUINO®Uno V3 or expansion connectors.
Pictures are not contractual.
Figure 1. 32F413HDISCOVERY board
(Top view with LCD)
Figure 2. 32F413HDISCOVERY board
(Bottom view with STM32F413ZHT6)
www.st.com

Contents UM2135
2/43 UM2135 Rev 2
Contents
1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Codification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Development environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Development toolchains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 32F413HDISCOVERY Discovery kit layout . . . . . . . . . . . . . . . . . . . . . . . .11
5.2 Embedded ST-LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2.1 Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2.2 ST-LINK/V2-1 firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.3 Programming/debugging when the power supply
is not from ST-LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.4 Clock sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.5 Reset sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.6 Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.7 USB OTG FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.8 microSD™card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.9 PSRAM memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.10 Quad-SPI NOR Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.11 Virtual COM port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.12 LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.13 Capacitive control touch panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.14 Wi-Fi®802.11 b/g/n module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.15 Buttons and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

UM2135 Rev 2 3/43
UM2135 Contents
4
6.1 ARDUINO®Uno V3 connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.2 USB OTG FS Micro-AB connector CN17 . . . . . . . . . . . . . . . . . . . . . . . . 22
6.3 LCD connector CN16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.4 Touch panel connector CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.5 microSD™connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.6 ST-LINK/V2-1 USB Micro-AB connector CN2 . . . . . . . . . . . . . . . . . . . . . 26
6.7 TAG connector CN11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.8 Audio line output (green jack) connector CN5 . . . . . . . . . . . . . . . . . . . . . 28
6.9 Extension microphone connector CN12 . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.10 Optional audio stereo speakers CN3 and CN4 . . . . . . . . . . . . . . . . . . . . 29
7 32F413HDISCOVERY board information . . . . . . . . . . . . . . . . . . . . . . . . 31
7.1 Product marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.2 32F413HDISCOVERY product history . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.2.1 Product identification 32F413HDISCO . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.2.2 Product identification DK32F413H$AU1 . . . . . . . . . . . . . . . . . . . . . . . . 32
7.3 Board revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.3.1 Board MB1274 revision D-01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.3.2 Board MB1274 revision E-01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.3.3 Board MB1274 revision E-03 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.3.4 Board MB1299 revision B-01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.3.5 Board MB1299 revision B-02 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.3.6 Board MB1299 revision B-03 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Appendix A 32F413HDISCOVERY I/O assignment . . . . . . . . . . . . . . . . . . . . . . . 34
Appendix B Federal Communications Commission (FCC)
and Industry Canada (IC) Compliance . . . . . . . . . . . . . . . . . . . . . . . 39
B.1 FCC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
B.1.1 Part 15.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
B.1.2 Part 15.105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
B.1.3 Part 15.21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
B.2 IC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
B.2.1 Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
B.2.2 Déclaration de conformité. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Contents UM2135
4/43 UM2135 Rev 2
Appendix C CISPR32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
C.1 Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

UM2135 Rev 2 5/43
UM2135 List of tables
5
List of tables
Table 1. List of available products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 2. Codification explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3. ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4. Assignment of the control ports to the LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 5. Pinout of the ARDUINO®connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 6. USB OTG Micro-AB pinout (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 7. USB OTG FS power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 8. Pinout of the LCD connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 9. Backlight power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 10. Pinout of the touch panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 11. Pinout of the microSD™ connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 12. USB Micro-AB connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 13. Pinout of the TAG connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 14. Audio jack connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 15. Extension microphone connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 16. 32F413HDISCOVERY I/O assignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 17. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

List of figures UM2135
6/43 UM2135 Rev 2
List of figures
Figure 1. 32F413HDISCOVERY board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. 32F413HDISCOVERY board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 3. Hardware block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 4. 32F413HDISCOVERY Discovery kit (top side). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 5. 32F413HDISCOVERY Discovery kit (bottom side). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 6. USB composite device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 7. JP3: 5V_ST_LINK selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 8. JP3: 5V_ARD selection from CN7 (VIN_5V_ARD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 9. JP3: 5V_USB_FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 10. JP3: 5V_USB_CHARGER selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 11. Wi-Fi®module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 12. ARDUINO®connector (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 13. USB OTG FS Micro-AB connector (front view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 14. LCD connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 15. Touch panel connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 16. microSD™connector (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 17. USB Micro-AB connector (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 18. TAG connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 19. TC2050-IDC-NL cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 20. Audio jack connector (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 21. Extension microphone connector (front view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

UM2135 Rev 2 7/43
UM2135 Features
42
1 Features
•STM32F413ZHT6 microcontroller with 1.5 Mbytes of Flash memory and 320 Kbytes of
SRAM, in an LQFP144 package
•240x240-pixel LCD with a parallel interface and capacitive touch panel
•Integrated Wi.Fi®module (802.11 b/g/n compliant)
•USB OTG FS
•I2S audio codec
•Stereo digital ST-MEMS microphones
•8-Mbit 16-bit wide PSRAM
•128-Mbit Quad-SPI NOR Flash memory
•2 color user LEDs
•User and reset push-buttons
•Board connectors:
–microSD
™card
– User USB with Micro-AB
– Jack for audio line with microphone input and stereo output
– Expansion connector to embedded MEMS microphone daughterboard featuring 5
MEMS microphones
– ARDUINO®Uno V3 expansion connectors
•Flexible power-supply options: ST-LINK USB VBUS, user USB FS connector, or
external sources
•Comprehensive free software libraries and examples available with the STM32Cube
MCU Package
•On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability:
mass storage, Virtual COM port, and debug port
•Support of a wide choice of Integrated Development Environments (IDEs) including
IAR Embedded Workbench®, MDK-ARM, and STM32CubeIDE
2 Ordering information
To order the 32F413HDISCOVERY Discovery kit, refer to Table 1. For a detailed
description, refer to its user manual on the product web page. Additional information is
available from the datasheet and reference manual of the target microcontroller.
Table 1. List of available products
Order code Board reference Target STM32
STM32F413H-DISCO MB1274(1)
MB1299(2)
1. Mother board
2. MEMS microphone daughterboard
STM32F413ZHT6

Ordering information UM2135
8/43 UM2135 Rev 2
2.1 Codification
The meaning of the codification is explained in Table 2.
Table 2. Codification explanation
STM32F4XXY-DISCO Description Example: STM32F413H-
DISCO
STM32F4 MCU series in STM32 32-bit
Arm Cortex MCUs STM32F4 Series
XX MCU product line in the series STM32F413
YSTM32 Flash memory size:
H for 1.5 Mbytes 1.5 Mbytes
DISCO Discovery kit Discovery kit

UM2135 Rev 2 9/43
UM2135 Development environment
42
3 Development environment
The 32F413HDISCOVERY Discovery kit runs with the STM32F413ZHT6 32-bit
microcontroller based on the Arm®(a) Cortex®-M4 core.
3.1 System requirements
•Multi-OS support: Windows®10, Linux®(b) 64-bit, or macOS®(c)(d)
•USB Type-A or USB Type-C®to Micro-B cable
3.2 Development toolchains
• IAR Systems®- IAR Embedded Workbench®(e)
• Keil®- MDK-ARM(e)
• STMicroelectronics - STM32CubeIDE
4 Conventions
Table 3 defines some conventions used in the present document.
a. Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
b. Linux is a registered trademark of Linus Torvalds.
c. macOS is a trademark of Apple Inc. registered in the U.S. and other countries.
d. All other trademarks are the property of their respective owners.
e. 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 solder
Solder bridge SBx OFF SBx connections left open
Resistor Rx ON Resistor soldered
Resistor Rx OFF Resistor not soldered

Hardware layout and configuration UM2135
10/43 UM2135 Rev 2
5 Hardware layout and configuration
The 32F413HDISCOVERY Discovery kit is designed around the STM32F413ZH (144-pin in
LQFP package). The hardware block diagram (see Figure 3) illustrates the connection
between the STM32 and the peripherals (PSRAM, Quad-SPI Flash memory, LCD
connector, USB OTG connectors, USART, Audio, microSD™card, ARDUINO®Uno V3
shields, and embedded ST-LINK/V2-1). Refer to Figure 4 and Figure 5 to locate these
features on the 32F413HDISCOVERY board.
Figure 3. Hardware block diagram
MSv43379V2
STM32F413ZHT6
OSC_32
SWD
3.3 V
Power supply
32 KHz crystal
ST-LINK/V2-1
Capacitive
multi-point
touch screen
USB OTG FS
Micro-AB connector OTG FS
8-Mbit PSRAM FSMC
LCD DSI connector
QSPI
128-Mbit
Quad-SPI Flash
VCP
UART
ARDUINO®Uno V3
connectors
GPIOs
802.11 b/g/n
Wi-Fi®module
SPI
microSD™
card connector SDMMC
OSC_IN
Data
Address
8 MHz
Control
I2CFMP
GPIO User interface
2x LEDs
User interface
Reset and wake-up
push-buttons
GPIO
I2SAudio DAC and
amplifier
Stereo jack
Line out / microphone in
DFSDM
DFSDM
External
STM module
for up to 5
microphones
Switch

UM2135 Rev 2 11/43
UM2135 Hardware layout and configuration
42
5.1 32F413HDISCOVERY Discovery kit layout
Figure 4. 32F413HDISCOVERY Discovery kit (top side)

Hardware layout and configuration UM2135
12/43 UM2135 Rev 2
Figure 5. 32F413HDISCOVERY Discovery kit (bottom side)
5.2 Embedded ST-LINK/V2-1
The ST-LINK/V2-1 programming and debugging tool is integrated on the
32F413HDISCOVERY Discovery kit. The new features supported on ST-LINK/V2-1 and not
present on ST-LINK/V2 are listed below:
•USB software re-enumeration
•Virtual COM port interface on USB
•Mass storage interface on USB
•USB power management request for more than 100 mA power on USB
These features are no more supported on ST-LINK/V2-1:
•SWIM interface
•Application voltage lower than 3 V
For all general information concerning debugging and programming features common
between V2 and V2-1 versions, refer to the user manual ST-LINK/V2 in-circuit
debugger/programmer for STM8 and STM32 (UM1075) at the www.st.com website.

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UM2135 Hardware layout and configuration
42
5.2.1 Drivers
Before connecting the 32F413HDISCOVERY Discovery kit to a Windows®PC through a
USB, a driver for the ST-LINK/V2-1 must be installed. It is available at the www.st.com
website.
In case the 32F413HDISCOVERY Discovery kit is connected to the PC before the driver is
installed, some 32F413HDISCOVERY interfaces may be declared as unknown in the PC
device manager. To recover from this situation the user must install the driver files, and
update the driver of the connected device from the device manager (see Figure 6).
Note: Prefer using the ‘USB Composite Device’ handle for a full recovery.
Figure 6. USB composite device
5.2.2 ST-LINK/V2-1 firmware upgrade
The ST-LINK/V2-1 embeds a firmware upgrade mechanism for in-situ upgrades through the
USB port. As the firmware may evolve during the lifetime of the ST-LINK/V2-1 product (for
example new functionalities, bug fixes, support for new microcontroller families), it is
recommended to visit www.st.com before starting to use the 32F413HDISCOVERY
Discovery kit and periodically, to stay up-to-date with the latest firmware version.
5.2.3 Power supply
The 32F413HDISCOVERY Discovery kit is designed to be powered by a 5 V DC power
supply. It is possible to configure the 32F413HDISCOVERY board to use any of the
following four sources for the power supply:
•5V_ST_LINK: DC power from USB ST-LINK connector. The power source is the USB
Micro-B connector of the ST-LINK/V2-1 (CN2). A jumper needs to be placed on pins 1
and 2 of JP3 (5V_ST_LINK on the silkscreen) to enable this power source (see
Figure 7). It is the default setting. In this configuration, only the ST-LINK MCU is
powered before the USB enumeration, because the host PC only provides 100 mA to
the board at that time. During the USB enumeration, the 32F413HDISCOVERY board
asks for the 500 mA power to the host PC. If the host can provide the required power,
the enumeration succeeds and, the power transistor ST890 (U10) is switched ON, the
entire board is powered and the LED LD1 remains turned OFF, thus the
32F413HDISCOVERY board consumes up to 500 mA current, but no more. If the host
is not able to provide the requested current, the enumeration fails. Therefore the ST890
remains OFF and the MCU part including the extension board is not powered. As a

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14/43 UM2135 Rev 2
consequence the red LED LD1 is turned ON. In this case, it is mandatory to use an
external power supply.
Figure 7. JP3: 5V_ST_LINK selection
•5V_ARD: 7-12V DC power from ARDUINO®Uno V3 connector. The power source is
CN7 pin 8 named VIN on the ARDUINO®connector silkscreen. A jumper needs to be
placed on pins 3 and 4 of JP3 (5V_ARD on the silkscreen) to enable this power source
(see Figure 8).
Figure 8. JP3: 5V_ARD selection from CN7 (VIN_5V_ARD)
•5V_USB_FS: DC power from USB user connector. The power source is the USB
Micro-AB connector (CN17). In this case, the 32F413HDISCOVERY board is powered
by an external USB host without a current limitation on board. A jumper needs to be
placed on pins 5 and 6 of JP3 (5V_USB_FS on the silkscreen) to enable this power
source (see Figure 9).
Figure 9. JP3: 5V_USB_FS

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•5V_USB_CHARGER: DC power charger from USB ST-LINK. The power source is the
USB Micro-B connector of the ST-LINK/V2-1 (CN2). In this case, if the
32F413HDISCOVERY Discovery kit is powered by an external USB charger the debug
is not available. If the PC is connected instead of the charger, the limitation is no more
effective, in this case, the PC could be damaged. A jumper has to be placed on pins 7
and 8 of JP3 (5V_USB_CHARGER on the silkscreen) to enable this power source (see
Figure 10).
Figure 10. JP3: 5V_USB_CHARGER selection
Note: In case the board is powered by a USB charger, there is no USB enumeration, so the led
LD1 remains set to OFF permanently and the board is not powered. In this specific case
only, the jumper JP3 must be placed on [7-8], to allow the board to be powered anyway.
Caution: Do not connect the PC to the ST-LINK (CN2) when R45 is soldered. The PC may be
damaged or the board may not be powered correctly.
STM32F413ZH IDD current measurement: JP2
The STM32F413ZH current measurement can be done on JP2. By default, a jumper is
placed on JP2.
For the current-measurement configuration, the jumper on JP2 must be removed and an
ammeter placed on JP2.
Note: The 32F413HDISCOVERY Discovery kit must be powered by a power supply unit or a piece
of auxiliary equipment complying with the standard EN-60950-1: 2006+A11/2009, and must
be Safety Extra Low Voltage (SELV) with limited power capability.
5.3 Programming/debugging when the power supply
is not from ST-LINK/V2-1
It is mandatory to power the 32F413HDISCOVERY Discovery kit first using CN7 (VIN) or
CN17 (USB_FS_OTG), then connecting the USB cable to the PC. Proceeding this way
ensures that the enumeration succeeds thanks to the external power source.
The following power sequence procedure must be respected:
1. Connect the jumper JP3 on (5V_ARD) or (5V_USB_FS)
2. Connect the external power source to CN7 in case of an ARDUINO®shield or CN17 in
case of a USB FS host interface

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3. Check that the GREEN LED LD6 is turned ON
4. Connect the PC to USB connector CN2
If this order is not respected, the board may be powered by VBUS first from ST-LINK, and the
following risks may be encountered:
1. If more than 500 mA current is needed by the board, the PC may be damaged or the
current can be limited by the PC. As a consequence, the board is not powered
correctly.
2. 500 mA is requested at the enumeration, so there is a risk that the request is rejected
and enumeration does not succeed if the PC cannot provide such current.
5.4 Clock sources
Three clock sources are described below:
•8 MHz MCO clock from ST-LINK MCU for the STM32F413ZHT6
•8 MHz X2 oscillator for the STM32F413ZHT6
•32.768 KHz X1 crystal for the STM32F413ZHT6 embedded RTC
5.5 Reset sources
The reset signal of the 32F413HDISCOVERY Discovery kit is active low and the reset
sources include:
•Reset button B2
•ARDUINO®Uno V3 shield board from CN7
•Embedded ST-LINK/V2-1
5.6 Audio
An audio codec with four DACs and two ADCs is connected to the I2S interface of the
STM32F413ZH. It communicates with the STM32 via the I2C bus shared with the touch
panel of the LCD.
•The analog-line output is connected to the DAC of the audio codec via audio jack CN5.
•The microphone input is connected from the audio jack to the input line of the audio
codec.
•Two optional external speakers can be connected to the audio codec through CN3 for
the left speaker and CN4 for the right speaker.
•Two digital ST-MEMS microphones are on 32F413HDISCOVERY Discovery kit. They
are connected to the digital input microphones of the STM32F413ZH and are managed
by the DFSDM functionality.
•The connector CN12 offers the possibility to connect a microphone module with up to
five ST-MEMS microphones (Refer to the audio schematics of the board). They are
connected to the digital input microphones of the STM32F413ZH and are managed by
the DFSDM functionality.

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5.7 USB OTG FS
The 32F413HDISCOVERY Discovery kit supports the USB OTG FS communication via a
USB Micro-AB connector.
A USB power switch (U15) is also connected to VBUS and provides power to CN17. The
green LED LD7 is lit when either:
•Power switch is ON and the 32F413HDISCOVERY works as a USB host
•VBUS is powered by another USB host when the32F413HDISCOVERY works as a
USB device.
The red LED LD8 is lit when an overcurrent occurs.
Note:1 When the 32F413HDISCOVERY board is powered by the ST-LINK, the OTG function
provides up to 100 mA.
Note:2 When the 32F413HDISCOVERY board is powered by an external power supply, the OTG
function can provide more than 100 mA, according to the external power supply capability.
Note:3 When the 32F413HDISCOVERY board is powered by an external power supply through the
USB FS connector (CN17), in device mode, do not use a PC as the power source.
5.8 microSD™card
The 32F413HDISCOVERY Discovery kit supports the microSD™card connected to the
SDIO port of the STM32F413ZH.
The microSD™card has to be compatible with the MMC 4.1 specification, or with the
microSD™card memory specification version 2.0
5.9 PSRAM memory
The 8-Mbit PSRAM is connected to the FSMC interface of the STM32F413ZH. This memory
is organized as 512K words by 16 bits.
5.10 Quad-SPI NOR Flash memory
The 128-Mbit Quad-SPI NOR Flash memory is connected to the Quad-SPI interface of the
STM32F413ZH.
5.11 Virtual COM port
The serial interface USART6 is directly available as a virtual COM port of the PC connected
to the ST-LINK/V2-1 USB connector CN13. The virtual COM port settings are configured as:
•115200 b/s
•8 bits data
•no parity
•1 stop bit
•no flow control

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5.12 LCD
The 240x240-pixel TFT LCD is connected to the FSMC data interface of the
STM32F413ZH.
It uses a controller for 262K-color and TFT-LCD graphic type. Display data are stored into
the on-chip display data RAM of 240x320x18 bits. It performs display data RAM read/write
operation with no external operation clock, to minimize power consumption.
An external SRAM is also used to store display data.
LCD_RS signal is used to determine whether the bus is carrying data or control/command
registers.
5.13 Capacitive control touch panel
The Capacitive Control Touch Panel is controlled by the STM32F413ZH through the
I2CFMP shared with the audio codec.
5.14 Wi-Fi®802.11 b/g/n module
A Wi-Fi module is integrated with the 32F413HDISCOVERY Discovery kit (see Figure 11).
The Wi-Fi®module is an embedded (eS-WiFi) wireless Internet Connectivity device. The
Wi-Fi hardware module consists of an ARM®-M3 Cortex®host processor, an integrated
antenna, and a Broadcom Wi-Fi®device.
The module is driven by an SPI interface enabling the connection to the STM32F413ZH.
The Wi-Fi module requires no operating system and has a completely integrated TCP/IP
stack that only requires AT commands to establish connectivity.
Figure 11. Wi-Fi®module

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5.15 Buttons and LEDs
The black button B2 located on the LCD side is the reset of the microcontroller
STM32F413ZH (Refer to Figure 4: 32F413HDISCOVERY Discovery kit (top side)).
When the button is depressed the logic state is LOW, otherwise, the logic state is HIGH.
The blue button B1, located on the LCD side, is available to be used as a digital input or as
an alternate wake-up function.
When the button is depressed the logic state is HIGH, otherwise, the logic state is LOW.
Two LEDs (LD4 red and LD3 green) located on the LCD side, are available for the user
(Refer to Figure 5: 32F413HDISCOVERY Discovery kit (bottom side)). To light a LED a high
logic state HIGH must be written in the corresponding GPIO register.
Table 4 gives the assignment of the control ports to the LED indicators.
Table 4. Assignment of the control ports to the LED indicators
LED Color Name Comment
B1 BLUE USER_B Alternate function Wake-up PA0
B2 BLACK RESET NRST
LD1 RED Fault Power Current upper than 750 mA
LD2 RED/GREEN ST-LINK COM Green when communication
LD3 GREEN LED2_GREEN PC5
LD4 RED LED1_RED PE3
LD5 GREEN ARDUINO PB12
LD6 GREEN 5 V Power 5 V available
LD7 GREEN VBUS OK 5 V USB available
LD8 RED VBUS OCRCR PG7

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6 Connectors
6.1 ARDUINO®Uno V3 connectors
CN6, CN7, CN8, and CN9 are female connectors compatible with ARDUINO®Uno V3. Most
shields designed for ARDUINO®Uno V3 are also supported by the 32F413HDISCOVERY
Discovery kit.
Since the I/Os of the STM32F413ZH microcontroller are 5 V tolerant, there is no issue for
ARDUINO®compatibility.
Example for the connector references (see Figure 12):
•CN6: Fisher BL 1-10 G
•CN7: Fisher BL 1-8 G
•CN8: Fisher BL 1-8 G
•CN9: Fisher BL 1-6 G
Figure 12. ARDUINO®connector (top view)
Table 5. Pinout of the ARDUINO®connector
Connector Pin number Pin name Signal name STM32 pin Function
CN7
1NC - -
2 IOREF - 3.3 V reference
3 NRST NRST NRST RESET
4 3.3 V - 3.3 V input/output
5 5 V - 5 V output
6 GND - GND
7 GND - GND
8V
IN - Power input