Introduction
UM1932
User manual
Discovery kit with STM32F469NI MCU
The STM32F469I-DISCO Discovery kit (32F469IDISCOVERY) is a complete demonstration
and development platform for STMicroelectronics Arm
STM32F469NIH6 microcontroller. This microcontroller features three I
SPIs with two multiplexed full-duplex I
ports, two CAN buses, three 12-bit ADCs, two 12-bit DACs, one SAI, 8 to 14-bit digital
camera digital module interface, internal 320+4 Kbytes of SRAM and 2-Mbyte Flash
mory, USB HS OTG and USB FS OTG, Ethernet MAC, FMC interface, MIPI DSI
me
interface, Quad-SPI interface, JTAG debugging support. This Discovery kit offers everything
required for users to get started quickly and develop applications easily.
The hardware features on the board help users to evaluate the following peripherals: USB
FS, microSD™ card, Audio DAC with headset jack, digital microphones, SDRAM,
OTG
Quad-SPI Flash memory, 4" TFT LCD using MIPI DSI
panel. The ARDUINO
specialized shields. The extension header makes
daughterboard for specific application. The integ
in-circuit debugger and programmer for the STM32 MCU.
®
compatible connectors expand the functionality with a wide choice of
Figure 1. STM32F469I-DISCO board (top view)
2
S interfaces, SDIO, four USART ports, four UART
®
Cortex®-M4 core-based
SM
interface with capacitive touch
it possible to easily connect a
rated ST-LINK/V2-1 provides an embedded
2
C interfaces, six
SM
igure 2. STM32F469I-DISCO board (bottom view)
F
Pictures are not contractual.
April 2020 UM1932 Rev 3 1/30
www.st.com
1
Contents UM1932
Contents
1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Product marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Codification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Development environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Development toolchains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Embedded ST-LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1.1 Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1.2 ST-LINK/V2-1 firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2.1 Power supply sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2.2 Supplying the board through ST-LINK/V2-1 USB port . . . . . . . . . . . . . . 13
4.2.3 Measurement of current I
4.2.4 Power related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
drawn by the STM32F469NI . . . . . . . . . . 14
DD
4.3 Clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.1 HSE clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.2 LSE clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4 Reset source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.5 Audio outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.6 Digital microphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.7 USB OTG FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.8 microSD™ card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.9 SDRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.10 Quad-SPI NOR Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.11 Virtual COM port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.12 ARDUINO
2/30 UM1932 Rev 3
®
connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
UM1932 Contents
4.13 Extension connector CN12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.14 DSI LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.15 Buttons and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.16 I
2
C extension connector CN11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.17 USB OTG FS Micro-AB connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.18 microSD™ connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.19 ST-LINK/V2-1 USB Mini-B connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . 25
4.20 Audio jack CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Appendix A Mechanical dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Appendix B Federal Communications Commission (FCC)
and Industry Canada (IC) Compliance . . . . . . . . . . . . . . . . . . . . . . . 27
B.1 FCC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
B.1.1 Part 15.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
B.1.2 Part 15.21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
B.1.3 Part 15.105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
B.2 IC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Appendix C CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
C.1 Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
UM1932 Rev 3 3/30
3
List of tables UM1932
List of tables
Table 1. List of available products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 2. Codification explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. Power related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 4. ARDUINO
Table 5. ARDUINO
Table 6. Extension connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 7. DSI LCD module connector (CN10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 8. Port assignment for control of LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 9. I
Table 10. USB OTG FS Micro-AB connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 11. microSD™ connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 12. USB Mini-B connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 13. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2
C extension connector pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
®
compatible connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
®
compatible connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4/30 UM1932 Rev 3
UM1932 List of figures
List of figures
Figure 1. STM32F469I-DISCO board (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. STM32F469I-DISCO board (bottom view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 3. Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4. STM32F469I-DISCO top side layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 5. STM32F469I-DISCO bottom side layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6. USB Composite device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 7. Extension connector CN12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 8. I
Figure 9. USB OTG FS Micro-AB connector CN13 (front view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 10. microSD™ connector CN9 (front view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 11. USB Mini-B connector CN1 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 12. Mechanical dimensions in millimeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2
C extension connector (front view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
UM1932 Rev 3 5/30
5
Features UM1932
1 Features
• STM32F469NIH6 microcontroller with 2 Mbytes of Flash memory and 324 Kbytes of
RAM, in BGA216 package
• 4-inch 800x480 pixel TFT color LCD with MIPI DSI
screen
• USB OTG FS
• SAI audio DAC
• 3 ST-MEMS digital microphones
• 128-Mbit Quad-SPI NOR Flash memory
• 4 M×32bit SDRAM
• Reset and wake-up push-buttons
• 4 color user LEDs
• Board connectors:
–microSD™ card
– USB with Micro-AB
– Stereo headphone output jack
2
–I
C expansion connector
– ARDUINO
®
Uno V3 expansion connectors
– 2.54 mm pitch expansion connector
• Flexible power-supply options: ST-LINK, USB V
• 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™, Keil
®
, STM32CubeIDE, and Arm® Mbed™
SM
interface and capacitive touch
or external sources
BUS
(a)
a. Arm and Mbed are registered trademarks or trademarks of Arm Limited (or its subsidiaries) in the US and
or elsewhere.
6/30 UM1932 Rev 3
UM1932 Ordering information
2 Ordering information
To order the 32F469IDISCOVERY Discovery kit, refer to Table 1. Additional information is
available from the datasheet and reference manual of the target microcontroller.
Order code Board reference Target STM32
STM32F469I-DISCO MB1189 STM32F469NIH6U
2.1 Product marking
Evaluation tools marked as "ES" or "E" are not yet qualified and therefore they are 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 design or in production.
"E" or "ES" marking examples of location:
• On the targeted STM32 that is soldered on the board (for illustration of STM32 marking,
refer to the section “Package information” of the STM32 datasheet available at
www.st.com).
• Next to the evaluation tool ordering part number, that is stuck or silk-screen printed on
the board.
Table 1. List of available products
This board features a specific STM32 device version, which allows the operation of any
bundled commercial stack/library available. This STM32 device shows a "U" marking option
at the end of the standard part number and is not available for sales.
In order to use the same commercial stack in his application, a developer may need to
purchase a part number specific to this stack/library. The price of those part numbers
includes the stack/library royalties.
2.2 Codification
The meaning of the codification is explained in Tabl e 2.
STM32F4XXY-DISCO Description Example: STM32F469I-DISCO
STM32F4
XX MCU product line in the series STM32F469
Y
DISCO Discovery kit Discovery kit
Table 2. Codification explanation
MCU series in STM32 32-bit Arm Cortex
MCUs
STM32 Flash memory size:
– I for 2 Mbytes
STM32F4 Series
2 Mbytes
The order code is mentioned on a sticker placed on the top or bottom side of the board.
UM1932 Rev 3 7/30
29
Development environment UM1932
3 Development environment
3.1 System requirements
• Windows® OS (7, 8 and 10), Linux® 64-bit, or macOS
• USB Type-A to Mini-B cable
3.2 Development toolchains
• IAR™ - EWARM
• Keil® - MDK-ARM
• STMicroelectronics - STM32CubeIDE
• Arm
®
Mbed™ online
(c)
(c)
(d)
(see mbed.org)
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 and in the external
on-board 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.
® (a) (b)
a. macOS® is a trademark of Apple Inc. registered in the U.S. and other countries.
b. All other trademarks are the property of their respective owners.
®
c. On Windows
d. Refer to the www.mbed.com website and to the Ordering information section to determine which order
codes are supported.
8/30 UM1932 Rev 3
only.
UM1932 Hardware layout and configuration
MSv38599V3
STM32F469NIH6
BGA216 package
Audio codec
RTC
3.3 V power
supply
32 KHz crystal
4x LEDs
ST-LINK/V2-1
I2C2
SAI1
I
2
C extension
connector
4" DSI LCD
microSD™ card
connector
Wake-up buttonGPIO
SDIO
FMC
128 Mbit
SDRAM
QSPI
128 Mbit
Quad-SPI
Flash memory
OTG
FS
USB connector
USART3
MIPI DSI
SM
1.8 V power
supply
GPIOs
SWD
Stereo headphone
output
Stereo digital
microphones
SPI3
LCD touch
panel
ARDUINO
®
connector
Extension
connector
I2C1
4 Hardware layout and configuration
The STM32F469I-DISCO Discovery board is designed around the STM32F469NIH6 (216pin TFBGA package).
the peripherals (SDRAM, Quad-SPI Flash memory, color LCD, USB OTG connector, Audio,
2
I
C extension connector, microSD™ card and embedded ST-LINK). Figure 4: STM32F469I-
DISCO top side layout and Figure 5: STM32F469I-DISCO bottom side layout help to locate
these features on the actual Discovery board.
Figure 3 illustrates the connection between the STM32F469NIH6 and
Figure 3. Hardware block diagram
UM1932 Rev 3 9/30
29
Hardware layout and configuration UM1932
MSv38596V2
LD8
VBUS LED
LD1, LD2, LD3, LD4:
green, orange, red, blue
LEDs respectively
U1
Digital
microphone
ZZ1
4-inch DSI LCD
LD8
V
D
U6
Digital
microphone
SB17
Solder
bridge
SB18
Solder
bridge
U2
Digital
microphone
LD8
V
BUS
LED
Figure 4. STM32F469I-DISCO top side layout
BUS LE
10/30 UM1932 Rev 3
UM1932 Hardware layout and configuration
MSv38597V2
B2
Wake-up
button
B1
Reset button
CN1
ST-LINK/V2-1
USB
JP2
Power
selection
jumper
LD6
ST-LINK/V2-1
COM LED
CN5, CN6,
CN7, CN8
ARDUINO
®
connectors
CN12
Extension
connector
CN13
USB OTG
FS
connector
CN9
microSD™
card
CN11
I
2
C extension
connector
JP5
I
DD
current
measurement
jumper
U14
STM32F469NIH6
CN3
Audio jack
LD5
5 V LED
Figure 5. STM32F469I-DISCO bottom side layout
UM1932 Rev 3 11/30
29
Hardware layout and configuration UM1932
4.1 Embedded ST-LINK/V2-1
The ST-LINK/V2-1 programming and debugging tool is integrated on the
STM32F469I-DISCO board. Compared to ST-LINK/V2 the additional features supported on
ST-LINK/V2-1 are:
• 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
This feature is no more supported on ST-LINK/V2-1:
• SWIM interface
For all general information concerning debugging and programming features common
between V2 and V2-1 please refer to ST-LINK/V2 user manual (UM1075) and technical note
(TN1235).
4.1.1 Drivers
Before connecting the STM32F469I-DISCO board to a Windows® 7, Windows® 8 or
Windows® 10 PC via USB, a driver for ST-LINK/V2-1 must be installed. It can be
downloaded from the www.st.com webpage.
If the STM32F469I-DISCO board is connected to the PC before installing the driver, the
Windows
as “Unknown”. To recover from this situation, after installing the dedicated driver
downloaded from the www.st.com webpage, the association of “Unknown” USB devices
found on STM32F469I-DISCO to this dedicated driver, must be updated in the device
manager manually. It is recommended to proceed using the USB Composite Device line, as
shown in
Note: Prefer using the “USB Composite Device” handle for a full recovery.
®
device manager may report some USB devices found on STM32F469I-DISCO
Figure 6.
Figure 6. USB Composite device
4.1.2 ST-LINK/V2-1 firmware upgrade
ST-LINK/V2-1 facility for debug and flashing of the target microcontroller STM32F469NIH6
is integrated on the STM32F469I-DISCO board. For its own operation, ST-LINK/V2-1
employs a dedicated MCU with Flash memory. Its firmware determines ST-LINK/V2-1
12/30 UM1932 Rev 3
UM1932 Hardware layout and configuration
functionality and performance. The firmware may evolve during the life span of
STM32F469I-DISCO to include new functionality, fix bugs or support new target
microcontroller families. It is therefore recommended to keep ST-LINK/V2-1 firmware up to
date. The latest version is available at www.st.com. ST-LINK/V2-1 supports a mechanism
that allows flashing its dedicated MCU via the USB interface on the hosting board, here
STM32F469I-DISCO. The whole process is controlled from a Windows
available at www.st.com.
®
PC application also
4.2 Power supply
4.2.1 Power supply sources
The STM32F469I-DISCO board is designed to be powered by the following sources:
• 5 V DC from the ST-LINK/V2-1 USB connector CN1 with 500 mA current limitation.
Power mechanism of the board supplied by the USB ST-LINK/V2-1 is explained below
(Section 4.2.2: Supplying the board through ST-LINK/V2-1 USB port). Pins 3 and 4 of
jumper JP2 must be closed by placing a jumper in location called STLK on the
silkscreen of the board. Jumper JP5 must be closed.The red LED LD5 lights up to
confirm the presence of +5 V voltage.
• 5 V DC from the user USB FS connector CN13. Pins 5 and 6 of jumper JP2 must be
closed by placing a jumper in location called USB on the silkscreen of the board.
Jumper JP5 must be closed. The red LED LD5 lights up to confirm the presence of
+5 V voltage.
• 6 V to 9 V DC from VIN pin of ARDUINO
must be limited to 9 V to keep the temperature of the regulator U10 within its thermal
safe area. Pins 1 and 2 of jumper JP2 must be closed by placing a jumper in location
called E5V on the silkscreen of the board. Jumper JP5 must be closed. The red LED
LD5 lights up to confirm the presence of +5 V voltage.
®
compatible connector CN6. The voltage
In case VIN, +5V is used to power the board, this power source must comply with the
standard EN-60950-1: 2006+A11/2009, and must be Safety Extra Low Voltage (SELV) with
limited power capability.
4.2.2 Supplying the board through ST-LINK/V2-1 USB port
To power the STM32F469I-DISCO board in this way, the USB host (a PC) gets connected
with the STM32F469I-DISCO board via a USB cable to the ST-LINK/V2-1 connector.
In the first step, only the ST-LINK part U3 is powered by the PC. In fact, before USB
enumeration, the host PC provides only 100
DISCO board requests a 500
required power, the enumeration finishes by a “SetConfiguration” command and then, the
power switch ST890 U4 is switched ON, the red LED LD5 is turned ON, thus the board can
consume no more than 500
enumeration fails. Therefore the ST890 U4 remains OFF and the board is not powered. As
a consequence, the red LED LD5 remains turned OFF. In this case, it is mandatory to use
another power supply source.
mA power to the host PC. If the host is able to provide the
mA. If the host is not able to provide such requested current, the
UM1932 Rev 3 13/30
mA to the board at that time. The STM32F469I-
29
Hardware layout and configuration UM1932
To do this, it is important to power the board before connecting it with the host PC, which
requires the following sequence to be respected:
1. Set the jumper in JP2 header in E5V position.
2. Connect an external power source to VIN pin 8 of ARDUINO® connector CN6.
3. Check the red LED LD5 is turned on.
4. Connect host PC to USB connector CN1.
The ST890 power switch protects the USB port of the host against current demand
exceeding 600
mA, should a short-circuit occur on the board.
The STM32F469I-DISCO board can also be supplied from a USB power source not
supporting enumeration, such as a USB charger. In this particular case, the solder bridge
SB16 must be closed. ST-LINK/V2-1 turns the ST890 power switch U4 ON regardless of
enumeration procedure result and passes the power unconditionally to the board.
4.2.3 Measurement of current IDD drawn by the STM32F469NI
The jumper JP5 should be closed (default) to supply the STM32F469NI MCU. To measure
the current I
drawn by the microcontroller STM32F469NIH6 only, remove jumper JP5 and
DD
replace it by a multimeter.
4.2.4 Power related jumpers
The power supply is configured by setting the related jumpers JP2, JP5 and solder bridge
SB8 as described in
Jumper,
solder bridge
JP5
SB8
JP2
Tabl e 3: Power related jumpers.
Table 3. Power related jumpers
Description
JP5 I
Default setting: Closed by a jumper
By default SB8 is closed to power +3V3 from regulator U7.
If the board is powered by the pin 1 of extension connector CN12 or by the pin 4 of
the ARDUINO
current injection in regulator U7.
(Default setting): SB8 closed
JP2 is used to select one of the five possible power supply sources.
To supply the board from the ST-LINK/V2-1 USB connector CN1, JP2 should be set
as shown to the right:
(Default Setting)
is used to measure STM32 current consumption manually by multimeter.
DD
®
connector CN6, it is mandatory to open SB8 to avoid reverse
14/30 UM1932 Rev 3
UM1932 Hardware layout and configuration
Table 3. Power related jumpers (continued)
Jumper,
solder bridge
To supply the board from the User USB FS connector USB connector CN13, JP2
should be set as shown to the right:
To supply the board from the pin 8 VIN of the ARDUINO
CN6, JP2 should be set as shown to the right:
JP2
To supply the board from pin1 of extension connector CN12 or from pin4 of the
ARDUINO® compatible connector CN6, JP2 should be set as shown to the right (no
jumper):
4.3 Clock source
Description
®
compatible connector
4.3.1 HSE clock source
By default the HSE clock source of the STM32F469NIH6 is the 8 MHz crystal X2. In that
case, zero-ohm R131 is soldered, solder bridge SB19 is open.
It is possible to replace the crystal X2 by the 8 MHz output MCO from the circuit
ST-LINK/V2-1 U3. In that case, 100-ohm resistor R35 must be soldered, zero-ohm R131
must be removed, solder bridge SB19 must be closed. C26 is not necessary and remains
not populated.
4.3.2 LSE clock source
The 32.768 kHz crystal X3 is the clock source for the embedded RTC.
4.4 Reset source
The reset signal of STM32F469I-DISCO board is low active and the reset sources include:
• Reset button B1, providing solder bridge SB1 is closed (default setting)
• Embedded ST-LINK/V2-1, providing solder bridge SB2 is closed (default setting)
• ARDUINO
• Extension connector CN12 pin 4
®
compatible connector CN6 pin 3
UM1932 Rev 3 15/30
29
Hardware layout and configuration UM1932
4.5 Audio outputs
An audio DAC outputs the audio to a stereo headphone jack connector.
The digital audio interface SAI of STM32F469NIH6 is connected to the digital audio input
SDIN of the audio DAC. The STM32F469NIH6 controls the audio DAC via the I2C2 bus.
Note that the I
The PWM loudspeaker output SPKR_OUTA of the audio DAC is available at pins 15 and 16
of the extension connector CN12. Each of the two terminals of the external loudspeaker
must be connected to pins 15 and 16 of CN2 respectively. Ensure that the terminals of the
loudspeaker are not connected to the ground.
The port PE3 of STM32F469NIH6 enables the jack headphone output and/or the
loudspeaker SPKR_OUT. Providing the audio DAC registers are properly set, it allows the
power down of the loudspeaker and/or headphone outputs.
The I2C address of the audio DAC is 0x94.
2
C speed of the audio DAC is 100 kHz max.
4.6 Digital microphones
Three STMicroelectronics MEMS digital microphones are available on the STM32F469IDISCO Discovery board. Two microphones can be used simultaneously in stereo mode
using the PDM mode. By default, microphones U2 and U6 are used and connected to the
DFSDM of the STM32F469NI microcontroller (solder bridges SB17 opened, and SB18
closed). The PDM clock is generated at port PD13 while PDM data are received by the
microcontroller at port PD6.
Instead of using the pair of microphones U2 and U6, it is possible to use the pair of
microphones U2 and U1. To enable this possibility the solder bridge SB17 must be closed
and SB18 opened.
Solder bridges locations are shown in Figure 4: STM32F469I-DISCO top side layout .
4.7 USB OTG FS
An USB OTG full speed communication is available at connector CN13.
The STM32F469I-DISCO Discovery board can be powered by the 5 V DC of this USB OTG
FS connection. When the STM32F469I-DISCO is USB host, it supplies the USB peripheral.
In this case the board must be supplied by any of the following sources: ST-LINK/V2-1 USB
connector CN1 or pin VIN of ARDUINO
supply for more details on each supply source.
The green LED LD8 lights up in one of these cases:
• STM32F469I-DISCO works as a USB host and power switch U16 is switched ON.
• V
Red LED LD9 lights up when over-current occurs.
is powered by another USB host when STM32F469I-DISCO works as a USB
BUS
device.
®
connector CN6. Refer to Section 4.2: Power
16/30 UM1932 Rev 3
UM1932 Hardware layout and configuration
4.8 microSD™ card
A microSD™ card with a capacity of 4 GBytes or more can be inserted in the receptacle
CN9. 4 bits of the SDIO interface of the STM32F469NIH6 are used to communicate with the
microSD™ card. The card detection is read by the GPIO PG2: when a microSD™ card is
inserted, the logic level is 0, otherwise it is 1.
4.9 SDRAM
A 128-Mbit SDRAM is accessible with the FMC interface of the microcontroller
STM32F469NIH6. The data bus is 32-bit wide.
The SDRAM is composed of four banks of 32 Mbits selected by the address bits A14 and
A15.
Each of the four banks is organized as 4096 rows by 256 columns by 32 bits. Raw and
column addresses are pre-selected using the CAS and RAS signals of the FMC bus.
The SDRAM is selected by SDNE0 and can be addressed from 0xC000 0000 to
0xC0FF
FFFF.
4.10 Quad-SPI NOR Flash memory
A 128-Mbit Quad-SPI NOR Flash memory is connected to Quad-SPI interface of the
STM32F469NIH6 microcontroller.
4.11 Virtual COM port
The serial interface USART3 is directly available as a virtual COM port of the PC connected
to the ST-LINK/V2-1 USB connector CN1. The virtual COM port settings are configured as:
115200
b/s, 8 bits data, no parity, 1 stop bit, no flow control.
4.12 ARDUINO® connectors
CN5, CN6, CN7 and CN8 are female connectors compatible with the ARDUINO® standard.
Most shields designed for ARDUINO
board.
Caution: The STM32 microcontroller I/Os are 3.3 V compatible while ARDUINO® Uno boards are 5 V
compatible.
Connector Pin Pin name MCU Pin Function
Table 4. ARDUINO® compatible connectors
®
Uno V3 can fit to the STM32F469I-DISCO Discovery
LEFT connectors
CN6 Power
1 - - Not connected
2 IOREF - 3.3V Ref
3 NRST NRST Reset
4 +3V3 - +3.3V input/output
UM1932 Rev 3 17/30
(1)
29
Hardware layout and configuration UM1932
Table 4. ARDUINO® compatible connectors (continued)
Connector Pin Pin name MCU Pin Function
5 +5V - +5V output
CN6 Power
6GND -Ground
7GND -Ground
8 VIN - +6V to +9V power input
(2)
1 A0 PB1 ADC12_IN9
2 A1 PC2 ADC12_IN12
3 A2 PC3 ADC12_IN13
CN8 Analog
4 A3 PC4 ADC12_IN14
(3)
5 A4 PC5 or PB9
6 A5 PA4 or PB8
ADC12_IN15 or I2C1_SDA
(3)
ADC12_IN4 or I2C1_SCL
1. Before using pin4 of CN6 as +3.3V input, the solder bridge SB8 must be removed. Otherwise
the board STM32F469I-DISCO could be damaged by the over-current.
2. The external voltage applied to pin VIN must be in the range from 6 V to 9 V at 25°C ambient
temperature. If a higher voltage is applied the regulator U10 may overheat and could be
damaged.
3. By default pin 5 and pin 6 of connector CN8 are PC5 and PA4 respectively. They are enabled
by the default configuration of solder bridges: SB10 and SB12 closed, SB9 and SB11 opened.
If necessary to have an I2C interface on pins 5 and 6 of connector CN8, change the
configuration solder bridges: open SB10 and SB12, close SB9 and SB11.
Table 5. ARDUINO® compatible connectors
Function MCU Pin Pin name Pin Connector
(3)
(3)
RIGHT connectors
I2C1_SCL PB8 D15 10
I2C1_SDA PB9 D14 9
AVD D - AVDD 8
Ground - GND 7
SPI2_SCK PD3 D13 6
SPI2_MISO PB14 D12 5
TIM12_CH2, SPI2_MOSI PB15 D11 4
TIM12_CH1, SPI2_CS PH6 D10 3
TIM14_CH1 PA7 D9 2
-PG10D81
-PG11D78
TIM3_CH1 PA6 D6 7
TIM5_CH3 PA2 D5 6
-PG12D45
TIM5_CH2 PA1 D3 4
CN5 Digital
CN7 Digital
18/30 UM1932 Rev 3
UM1932 Hardware layout and configuration
Table 5. ARDUINO® compatible connectors (continued)
Function MCU Pin Pin name Pin Connector
-PG13D23
CN7 DigitalUSART6_TX PG14 D1 2
USART6_RX PG9 D0 1
4.13 Extension connector CN12
The extension connector CN12 is a 2.54 mm pitch header located at the bottom side of the
STM32F469I-DISCO Discovery board. It is composed of 16 square pins of 0.64
arranged in double row and it is compatible with usual connectors mating with 2.54
headers, having 0.64
mm square posts. Pins 1, 2, 15 and 16 are marked on the silkscreen
of the PCB, pin 1 is signaled by a triangle as shown below:
Figure 7. Extension connector CN12
mm
mm
The extension connector gives access to the following communication buses and features:
• CAN2
• USART6 (TX, RX)
• I2S2
• SPI1
• 7 timer channels
• 2 ADC inputs
• A 1W monophonic loudspeaker output
• System signals: NRST, MCO1, ANTI-TAMP1
• Power supply: +3V3, GND
The STM32F469NIH6 ports and extension connector pins numbers are detailed in the
following
Tabl e 6: Extension connector pinout:
UM1932 Rev 3 19/30
29
20/30 UM1932 Rev 3
Table 6. Extension connector pinout
Extension
connector
pin
MCU Port - - PA8 NRST PB4 PC6 PA5 PC7 PB5 PB13 PA15 PB12 PC13 PC1 - -
CAN2 - - - - - - - - Rx Tx - Rx - - - -
USART6---- -Tx - Rx---- - - - -
I2S2 -----MCK- --CK-WS- SD - -
SPI1 - - - - - - - - MOSI - NSS - - - - -
TIMER - -
ADC ---- - -
12345 6 7 8910111213 14 15 16
TIM1_
CH1
TIM3/TI
-MISO
M8_
CH1
SCK
ADC1/AD
C2_IN5
TIM3/
TIM8_
CH2
TIM3_
CH2
TIM1_
CH1N
TIM2_
CH1/2
_ETR
TIM1_
BKIN
-- --
----- -
ADC123
_IN11
--
Hardware layout and configuration UM1932
SYSTEM+3V3GNDMCO1NRST- - - -----
TAMP1
ANTI
-
Speaker
OUTAN
Speaker
OUTAP
UM1932 Hardware layout and configuration
4.14 DSI LCD
The LCD module is a 4-inch 800x480 TFT color LCD with capacitive touch panel. The LCD
is connected to the MIPI DSI interface of the microcontroller STM32F469NIH6 via the
connector CN10. The DSI (Display Serial Interface) is a specification of the MIPI Alliance
standard and defines the physical interface and the protocol used by the STM32F469NIH6
microcontroller to communicate with such LCD module.
The following ports of the microcontroller STM32F469NIH6 are dedicated to the DSI
interface: DSI_D0_N, DSI_D0_P, DSI_CK_N, DSI_CK_P, DSI_D1_N, DSI_D1_P.
In addition to the DSI dedicated ports, the port PH7 of the microcontroller is used to reset
both the DSI LCD module and the capacitive touchscreen controller.
The port PJ2, connected to the LCD signal TE (Tearing Effect) is an input of the
microcontroller to synchronize the write access from the microcontroller with the LCD scan
refresh, to avoid visible artefacts on the display.
LEDK and LEDA signals of the LCD module are the cathode and anode of the backlight
LEDs.
This backlight requires a power supply voltage of typically 25 V generated from the +5 V by
a switching mode boost converter STLD40DPUR.
By controlling the EN pin of the STLD40DPUR by a low frequency PWM signal, it is possible
to switch on/off or to dim the backlight intensity of the LCD module. The control of EN can be
done by software or by hardware:
• By default, the EN pin of the STLD40DPUR is controlled by the microcontroller
software through DSI commands and CABC signal generated by the LCD module. For
such default configuration the resistor R117 is soldered, R119 is not soldered.
• The STM32F469I-DISCO Discovery board offers the option to control the EN pin by
HW through port PA3. In such case, R117 must be removed and R119 soldered.
Table 7. DSI LCD module connector (CN10)
CN10
pin
1 ID Not connect -
2 GND Ground -
3 CABC Content Adaptive Brightness Control -
4 GND Ground -
5 RESX Reset, active low PH7
6 IOVCC Digital supply voltage +3V3
7 GND Ground -
8 HSSI_D0_N MIPI-DSI data lane 0 negative-end I/O DSI_D0_N
9 NC Not connect -
10 HSSI_D0_P MIPI-DSI data lane 0 positive-end I/O DSI_D0_P
11 GND Ground -
12 HSSI_CLK_N MIPI-DSI clock lane negative-end input DSI_CK_N
13 NC Not connect -
Signal
name
Description
UM1932 Rev 3 21/30
MCU pins
involved
29
Hardware layout and configuration UM1932
Table 7. DSI LCD module connector (CN10) (continued)
CN10
pin
14 HSSI_CLK_P MIPI-DSI clock lane positive-end input DSI_CK_P
15 GND Ground -
16 HSSI_D1_N MIPI-DSI data lane 1 negative-end input DSI_D1_N
17 NC Not connect -
18 HSSI_D1_P MIPI-DSI data lane 1 positive-end input DSI_D1_P
19 GND Ground -
20 NC/ERR Not connect -
21 VCC Analog circuitry power supply +3V3
22 TE
23 LEDK Backlight LED Cathode -
24 LEDA Backlight LED Anode -
25 GND Ground -
Signal
name
4.15 Buttons and LEDs
Description
Tearing effect output pin to synchronize MCU to
frame writing
MCU pins
involved
PJ2
The black button B1 located bottom side is the reset of the microcontroller
STM32F469NIH6. Refer to the
Figure 5: STM32F469I-DISCO bottom side layout .
The blue button B2 located bottom side is available to be used as a digital input or as
alternate function Wake-up. When the button is depressed the logic state is 1, otherwise the
logic state is 0.
Four LEDs located top side are available for the user. Refer to the Figure 4: STM32F469I-
DISCO top side layout . The LEDs are LD1, LD2, LD3, LD4 from left to right with colors
green, orange, red, blue respectively. To light a LED a low logic state 0 should be written in
the corresponding GPIO.
Table 8. Port assignment for control of LED indicators
LED Controlled by MCU port Color
LD1 PG6 Green
LD2 PD4 Orange
LD3 PD5 Red
LD4 PK3 Blue
Tabl e 8 gives the assignment of control ports to the LED indicators.
22/30 UM1932 Rev 3
UM1932 Hardware layout and configuration
MS30715V2
17
28
4.16 I2C extension connector CN11
Figure 8. I2C extension connector (front view)
Pin number Description Pin number Description
1 I2C1_SDA (PB9) 5 +3V3
2NC6 NC
3 I2C1_SCL (PB8) 7 GND
4 EXT_RESET(PB0) 8 NC
Table 9. I2C extension connector pinout
4.17 USB OTG FS Micro-AB connector CN13
Figure 9. USB OTG FS Micro-AB connector CN13 (front view)
Pin number Description Pin number Description
1 VBUS (PA9) 4 ID (PA10)
2 DM (PA11) 5 GND
3 DP (PA12) - -
Table 10. USB OTG FS Micro-AB connector CN13
UM1932 Rev 3 23/30
29
Hardware layout and configuration UM1932
4.18 microSD™ connector CN9
Figure 10. microSD™ connector CN9 (front view)
Pin
number
1 SDIO_D2 (PC10) 6 GND
2 SDIO_D3 (PC11) 7 SDIO_D0 (PC8)
3 SDIO_CMD (PD2) 8 SDIO_D1 (PC9)
4+3.3V 9GND
5 SDIO_CLK (PC12) 10 MicroSDcard_detect (PG2)
24/30 UM1932 Rev 3
Table 11. microSD™ connector CN9
Description
Pin
number
Description
UM1932 Hardware layout and configuration
4.19 ST-LINK/V2-1 USB Mini-B connector CN1
The USB connector CN1 is used to connect the embedded ST-LINK/V2-1 to the PC.
Figure 11. USB Mini-B connector CN1 (front view)
Pin number Description Pin number Description
1 VBUS (power) 4 GND
2 DM 5,6 Shield
3DP- -
4.20 Audio jack CN3
A 3.5 mm stereo audio jack CN3 is available on STM32F469I-DISCO discovery board to
connect a headphone.
Table 12. USB Mini-B connector CN1
UM1932 Rev 3 25/30
29
Mechanical dimensions UM1932
Appendix A Mechanical dimensions
Figure 12. Mechanical dimensions in millimeter
26/30 UM1932 Rev 3
UM1932 Federal Communications Commission (FCC) and Industry Canada (IC) Compliance
Appendix B Federal Communications Commission (FCC)
and Industry Canada (IC) Compliance
B.1 FCC Compliance Statement
B.1.1 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.
B.1.2 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.
B.1.3 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
B.2 IC Compliance Statement
Industry Canada ICES-003 Compliance Label: CAN ICES-3 (B)/NMB-3(B)
UM1932 Rev 3 27/30
29
CE conformity UM1932
Appendix C CE conformity
C.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.
28/30 UM1932 Rev 3
UM1932 Revision history
Revision history
Table 13. Document revision history
Date Version Revision Details
19-Sep-2015 1 Initial release.
Updated Figure 3: Hardware block diagram .
20-Oct-2015 2
Added Section Appendix B: Federal Communications
Commission (FCC) and Industry Canada (IC) Compliance and
Section 2: Ordering information.
Removed Technology partners and Schematics.
Added Appendix C: CE conformity and updated Appendix B:
Federal Communications Commission (FCC) and Industry
Canada (IC) Compliance.
Updated Section 4.5: Audio outputs, Section 4.6: Digital
microphones, Section 4.9: SDRAM and Section 4.10: Quad-
21-Apr-2020 3
SPI NOR Flash memory.
Revised the beginning of the document:
– Updated Section 1: Features, Section 2: Ordering
information, Section 3.2: Development toolchains and
Section 3.3: Demonstration software
– Added Section 2.1: Product marking and Section 2.2:
Codification
UM1932 Rev 3 29/30
29
UM1932
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30/30 UM1932 Rev 3
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