ST STM3241G-EVAL User manual

October 2016 DocID022136 Rev 5 1/67
1
UM1460
User manual
STM3241G-EVAL evaluation board
Introduction
The STM3241G-EVAL evaluation board is a complete demonstration and development
platform for the STM32F4 Series and includes an embedded STM32F417IGH6 high-
performance ARM®Cortex®-M4F 32-bit microcontroller.
The full range of hardware features provided on the board is described to evaluate all
peripherals (USB-OTG HS, USB-OTG FS, Ethernet, motor control, CAN, microSD™ card,
smartcard, USART, Audio DAC, RS-232, IrDA up to version C07 of the board, SRAM,
ST MEMS, EEPROM etc.) before developing applications. Extension headers are used to
easily connect a daughterboard or a wrapping board for any specific application.
The in-circuit ST-LINK/V2 tool provides easy JTAG and SWD interface debugging and
programming.
Figure 1. STM3241G-EVAL evaluation board
1. Picture is not contractual
www.st.com

Contents UM1460
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Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Delivery recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 Boot option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.3 Clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4 Reset source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.5 Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6 EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7 CAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.8 RS-232 and IrDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.9 Motor control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.10 Smartcard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.11 microSD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.12 ST MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.13 Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.14 ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.15 USB-OTG FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.16 Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.17 USB-OTG HS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.18 Camera module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.19 SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.20 Development and debug support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.21 Display and input devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.1 Daughterboard extension connectors CN1, 2, 3 and 4 . . . . . . . . . . . . . . 23

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3.2 Motor control connector CN5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.3 microSD connector CN6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.4 Ethernet RJ45 connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.5 USB-OTG FS Micro-AB connector CN8 . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.6 USB-OTG HS Micro-AB connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.7 CAN D-type 9-pin male connector CN10 (CAN1 or CAN2) . . . . . . . . . . . 33
3.8 Audio connector CN11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.9 Trace debug connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.10 JTAG debug connector CN14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.11 Camera module connector CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.12 RS-232 connector CN16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.13 Power connector CN18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.14 TFT LCD connector CN19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.15 Smartcard connector CN20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.16 ST-LINK/V2 connector CN21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.17 Camera extension connector CN23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.18 STM3241G-EVAL pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Appendix A Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

List of tables UM1460
4/67 DocID022136 Rev 5
List of tables
Table 1. Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 2. Power related jumpers and solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 3. Boot related jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 4. Audio related jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 5. EEPROM related jumper and solder bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 6. CAN-related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 7. RS-232 and IrDA related jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 8. Motor control solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 9. ST8024 and STM32F417IGH6 connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 10. Smartcard related jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 11. microSD card related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 12. Ethernet related jumpers and solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 13. microSD card related jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 14. Camera module related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 15. SRAM related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 16. Third-party toolchain support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 17. LCD modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 18. Daughterboard extension connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 19. Daughterboard extension connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 20. Daughterboard extension connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 21. Daughterboard extension connector CN4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 22. Motor control connector CN5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 23. microSD connector CN6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 24. RJ45 connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 25. USB-OTG FS Micro-AB connector CN8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 26. USB-OTG HS Micro-AB connector CN9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 27. CAN D-type 9-pin male connector CN10 (CAN1 or CAN2) . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 28. Trace debug connector CN13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 29. JTAG debug connector CN14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 30. Camera module connector CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 31. RS-232 connector CN16 with ISP support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 32. Smartcard connector CN20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 33. Camera extension connector CN23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 34. STM3241G-EVAL pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 35. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

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List of figures
Figure 1. STM3241G-EVAL evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3. STM3241G-EVAL evaluation board layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4. Pin 1 camera plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 5. Motor control connector CN5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 6. microSD connector CN6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 7. Ethernet RJ45 connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 8. USB-OTG FS Micro-AB connector CN8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 9. USB-OTG HS Micro-AB connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 10. CAN D-type 9-pin male connector CN10 (CAN1 or CAN2) . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 11. Trace debug connector CN13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 12. JTAG debug connector CN14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 13. Camera module connector CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 14. RS-232 connector CN16 with ISP support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 15. Power supply connector CN18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 16. Smartcard connector CN20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 17. STM3241G-EVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 18. MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 19. USB-OTG HS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 20. Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 21. Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 22. Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 23. USB-OTG FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 24. SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 25. LCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 26. RS-232 and IrDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Figure 27. CAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 28. I/O peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 29. I/O expander . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 30. microSD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 31. Motor control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Figure 32. Smartcard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Figure 33. JTAG and trace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Figure 34. Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Figure 35. Extension connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 36. ST-LINK/V2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Figure 37. 3.2” LCD module with SPI and 16-bit interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Overview UM1460
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1 Overview
1.1 Features
•STM32F417IGH6 microcontroller
•16 Mbit SRAM
•1 Gbyte or more microSD card
•Boot from user Flash, system memory or SRAM
•Both ISO/IEC 14443 type A and B smartcard support
•I2C compatible serial interface 8 Kbyte EEPROM, ST MEMS and I/O expander
•IEEE 802.3-2002 compliant Ethernet connector
•Two CAN 2.0 A/B channels on the same DB connector
•RS-232 communication
•IrDA transceiver (only supported up to C07 version of the board, no more supported
from C08 version)
•USB-OTG (HS and FS) with Micro-AB connector
•Inductor motor control connector
•I2S Audio DAC, stereo audio jack for headset
•3.2" 240x320 TFT color LCD with touchscreen
•4 color LEDs
•Camera module and extension connector for ST camera plug-in
•Joystick with 4-direction control and selector
•Reset, wakeup, tamper and user button
•RTC with backup battery
•Extension connector for daughterboard or wrapping board
•JTAG, SWD and trace debug support
•Embedded ST-LINK/V2
•Five 5 V power supply options: Power jack, USB FS connector, USB HS connector,
ST-LINK/V2 or daughterboard
1.2 Demonstration software
Demonstration software is preloaded in the board-mounted Flash memory for easy
demonstration of the device peripherals in standalone mode. For more information and to
download the latest version, please refer to STM3241G-EVAL demonstration software at the
www.st.com/mcu website.
1.3 Ordering information
To order the STM3241G-EVAL evaluation board, refer to Table 1:
Table 1. Ordering information
Order code Target STM32
STM3241G-EVAL STM32F417IGH6

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1.4 Delivery recommendations
Several verifications are needed before using the board for the first time to make sure that
nothing has been damaged during shipment and no component is unplugged and lost.
When the board is extracted from its plastic bag, please check that no component remains
in the bag. Main components to verify are:
1. The 25 MHz crystals (X1 and X4) may have been removed by a shock.
2. The camera connected on socket CN15 located on the right side of the board under the
JTAG connector may be unplugged. If this is the case, please refer to the note in
Section 2.18: Camera module to make sure to plug it in the correct position.
3. The microSD card may have been ejected from its connector CN6 (top left corner of the
board).
The plastic protection on the camera should be removed carefully as the connection is very
fragile.
2 Hardware layout and configuration
The STM3241G-EVAL evaluation board is designed around the STM32F417IGH6 in a
UFBGA176 package.
The hardware block diagram Figure 2 illustrates the connections between the
STM32F417IGH6 and peripherals (camera module, LCD, SRAM, EEPROM, ST MEMS,
USART, IrDA up to version C07 of the board, USB-OTG HS, USB-OTG FS, Ethernet, Audio,
CAN bus, smartcard, microSD card and motor control).
Figure 3 locates these features on the board.
Note that for every figure (layouts and schematics) of this user manual, whenever IrDA is
indicated, it is only significant for board version up to C07, since IrDA has not been
populated on later versions of the boards (so IrDA is not present from the C08 board
onwards).

Hardware layout and configuration UM1460
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Figure 2. Hardware layout and configuration
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UM1460 Hardware layout and configuration
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Hardware layout and configuration UM1460
10/67 DocID022136 Rev 5
2.1 Power supply
The STM3241G-EVAL evaluation board is designed to be powered by 5 V DC power supply
and to be protected by PolyZen from a wrong power plug-in event. It is possible to configure
the evaluation board to use any of following five sources for the power supply:
•5 V DC power adapter connected to CN18, the power jack on the board
•5 V DC power with 500 mA limitation from CN8, the USB-OTG FS Micro-AB connector
•5 V DC power with 500 mA limitation from CN9, the USB-OTG HS Micro-AB connector
•5 V DC power with 500 mA limitation from CN21, the ST-LINK/V2 USB connector
•5 V DC power from both CN1 and CN3, the extension connector for daughterboard
(DTB for daughterboard on silkscreen)
The power supply is configured using JP4, JP32, JP18 and JP19 as described in Table 2.
Table 2. Power related jumpers and solder bridges
Jumper Description
JP4
JP4 should be fitted to enable power down reset (PDR). PDR is disabled when JP4 is not
fitted.
Default setting: Fitted.
JP32
MCU_VDD is connected to 3.3V power when JP32 is closed and MCU current
consumption measurement can be done manually by multi-meter when JP32 is open.
Default setting: Fitted.
JP18
JP18 is used to select one of the five possible power supply sources.
To select the ST-LINK/V2 USB connector (CN21) power supply,
set JP18 as shown:
(Default setting)
To select power supply jack (CN18) power supply, set JP18 as
shown:
To select daughterboard connector (CN1 and CN3)power
supply, set JP18 as shown:
HS
FS
DTB
PSU
STlk
HS
FS
DTB
PSU
STlk
HS
FS
DTB
PSU
STlk

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66
Note: LED LD9 is lit when the STM3241G-EVAL evaluation board is powered by 5 V correctly.
2.2 Boot option
The STM3241G-EVAL evaluation board is able to boot from:
•Embedded user Flash
•System memory with boot loader for ISP
•Embedded SRAM for debugging
The boot option is configured by setting switch SW1 (BOOT1) and SW2 (BOOT0). BOOT0
can also be configured via RS-232 connector CN16.
JP18
(cont.)
To select USB-OTG FS (CN8) power supply, set JP18 as shown:
To select USB-OTG HS (CN9)power supply, set JP18 as shown:
To select power supply jack (CN18) power supply to both
STM3241G-EVAL and daughterboard connected on CN1 and
CN3, set JP18 as shown (daughterboard must not have its own
power supply connected)
JP19
To connect Vbat to the battery, set JP19 as shown:
To connect Vbat to 3.3V power, set JP19 as shown:
(Default setting)
Table 2. Power related jumpers and solder bridges (continued)
Jumper Description
HS
FS
DTB
PSU
STlk
HS
FS
DTB
PSU
STlk
HS
FS
DTB
PSU
STlk
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Table 3. Boot related jumpers
BOOT 0 BOOT 1 Boot source
0 1 or 0 STM3241G-EVAL boots from User Flash (Default setting)
1 1 STM3241G-EVAL boots from Embedded SRAM
1 0 STM3241G-EVAL boots from System Memory

Hardware layout and configuration UM1460
12/67 DocID022136 Rev 5
2.3 Clock source
Four clock sources are available for the STM32F417IGH6 and RTC embedded:
•X1, 25 MHz crystal for Ethernet PHY with socket. It can be removed when clock is
provided by MCO pin of the MCU.
•X2, 26 MHz crystal for USB-OTG HS PHY
•X3, 32 kHz crystal for embedded RTC
•X4, 25 MHz crystal with socket for the STM32F417IGH6 microcontroller. It can be
removed from socket when internal RC clock is used.
2.4 Reset source
The reset signal of STM3241G-EVAL evaluation board is low active. Reset sources include:
•Reset button B1
•Debugging tools from JTAG connector CN14 and trace connector CN13
•Daughterboard from CN3
•RS-232 connector CN16 for ISP
•ST-LINK/V2
2.5 Audio
The STM3241G-EVAL evaluation board features stereo audio play and microphone
recording by an external headset connected on audio jack CN11.
•An audio DAC CS43L22 is connected to both the I2S2 port and a DAC channel, while a
microphone amplifier is connected to the ADC of the STM32F417IGH6.
•The CS43L22 can be configured via I2C1 and the external PLL (U36) can be used to
provide an external clock which is connected to the I2S_CKIN pin (PC9).
Note: To avoid speaker damage it is mandatory to connect the headphone to the board on CN11
during debug of audio code. When the program is stopped on a breakpoint, a DC voltage
may be applied to the speaker which induces power consumption incompatible with the
speaker.
Warning: Signal I2S_SD (PI3) is close to signal TCK/SWCLK of the
JTAG/SWD interface, so to avoid possible communication
issues on JTAG/SWD when the I2S interface is used the
recommendations are to:
1) Prefer usage of embedded ST-LINK/V2 to external tool
connected on CN14.
2) Configure PI3 GPIO in low speed (2 MHz or 10 MHz).

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66
2.6 EEPROM
A 64 Kbit EEPROM is connected to the I2C1 bus of the STM32F417IGH6.
2.7 CAN
The STM3241G-EVAL evaluation board has two channels of CAN2.0A/B compliant CAN
bus communication based on a 3.3 V CAN transceiver on the DB9 connector (CN10). The
two CAN buses can be disconnected by jumpers from relevant STM32F417IGH6 I/Os which
are shared with FSMC and USB-OTG HS. Jumpers JP3 and JP10 must be refitted to
enable CAN1 or CAN2 as listed in Table 6.
High-speed, Standby and Slope Control modes are available and can be selected by setting
jumper JP7.
Table 4. Audio related jumpers
Jumper Description
JP16 Description of JP16 is in Table 11 on page 16.
JP33 The microphone amplifier is disabled when JP33 is fitted. Default setting: Not fitted
Table 5. EEPROM related jumper and solder bridge
Jumper Description
JP24 The EEPROM is in Write Protection mode when JP24 is not fitted.
Default setting: Not fitted
Table 6. CAN-related jumpers
Jumper Description
JP3
To connect CAN1_TX to CAN transceiver, set JP3 as shown:
To connect CAN2_TX to CAN transceiver, set JP3 as shown:
JP10
To connect CAN1_RX to CAN transceiver, set JP10 as shown:
To connect CAN2_RX to CAN transceiver, set JP10 as shown:
PD0 and PB5 are disconnected from the CAN transceiver and used for FSMC and
USB_OTG_HS when jumper JP10 is not fitted (default setting).
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Hardware layout and configuration UM1460
14/67 DocID022136 Rev 5
2.8 RS-232 and IrDA
Both RS-232 and IrDA communication is enabled by D-type, 9-pin RS-232 connectors
(CN16) and IrDA transceiver U11 which are connected to USART3 of the STM32F417IGH6
on the STM3241G-EVAL evaluation board.
The IrDA transceiver (TFDU6300) is not populated on STM3241G-EVAL evaluation board
from version C08. The version of the board is written on sticker placed on bottom side of the
board (ex: MB786-C08). For boards version C08 or newer, it is possible to solder manually
the TDFU6300 on U11 footprint to support IRDA feature.
For ISP support, two signals are added on the RS-232 connector CN16:
•Bootloader_RESET (shared with CTS signal)
•Bootloader_BOOT0 (shared with DSR signal)
RS-232 or IrDA can be selected by setting JP22, and ISP can be enabled by setting JP29
and JP34 as shown inTable 7 .
JP7
To enable the selected CAN transceiver to work in Standby mode, set JP7 as
shown:
To enable the selected CAN transceiver to work in High-speed mode, set JP7 as
shown (default setting):
To enable the selected CAN transceiver to work in Slope Control mode, do not fit a jumper
on JP7.
JP9 To enable the terminal resistor for the selected CAN, fit a jumper on JP9.
(Default setting: not fitted)
Table 6. CAN-related jumpers (continued)
Jumper Description
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Table 7. RS-232 and IrDA related jumpers
Jumper Description
JP22
To connect USART3_RX to IrDA transceiver and enable IrDA communication,
set JP22 as shown (position 2-3 unused from version C08):
To connect USART3_RX to RS-232 transceiver and enable RS-232
communication, set JP22 as shown (Default setting):
To enable microSD card, which shares I/Os with RS-232, JP22 is not fitted.
JP29
Bootloader_BOOT0 is managed by pin 6 of CN16 (RS-232 DSR signal) when JP29 is
closed. This configuration is used for boot loader application only.
Default setting: Not fitted.
JP34
Bootloader_RESET is managed by pin 8 of CN16 (RS-232 CTS signal) when JP34 is
fitted. This configuration is used for boot loader application only.
Default setting: Not fitted.
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66
2.9 Motor control
The STM3241G-EVAL evaluation board enables a three-phase brushless motor control via
a 34-pin connector (CN5), which provides all required control and feedback signals to and
from the motor power-driving board. Available signals on this connector include emergency
stop, motor speed, 3-phase motor current, bus voltage, heatsink temperature coming from
the motor driving board and 6 channels of PWM control signal going to the motor driving
circuit.
The solder bridge (SB18) selects two kinds of synchronization methods for PFCs (Power
Factor Correction) while the SB17 selects different signals on pin 31 of CN5.
The I/O pins used on motor control connector CN5 are multiplexed with some peripherals on
the board; either motor control connector or multiplexed peripherals can be enabled by the
setting of solder bridges SB10, SB11, SB12, SB14, SB15 and SB16.
Note: 1 Some 0 Ωresistors have to be removed or soldered to enable motor control application
except the solder bridges configurations mentioned above:
– R34, R58 & R51 to be removed
– R66, R204 & R205 to be soldered
2 microSD card must be removed from CN6 for motor control application.
Table 8. Motor control solder bridges
Solder
bridge Description Multiplexed peripherals
SB18
When closed, SB18 redirects the PFC synchronized signal to the
timer 3 input capture pin 2 in addition to the timer 3 external trigger
input.
Default setting: Open
-
SB17
For CN5 encoder signal input (pin 31), SB17 must be open.
For CN5 special motor analog signal input (pin 31), SB17 must be
closed.
Default setting: Open
-
SB16 To connect MC_EmergencySTOP to PI4, close SB16.
Default setting: Open
Camera module
connected to
CN15
SB10 To connect MC_EnIndex to PB8, close SB10.
Default setting: Open
EthernetSB11 To connect MC_CurrentA to PC1, close SB11.
Default setting: Open
SB12 To connect MC_CurrentB to PC2, close SB12.
Default setting: Open
SB14 To connect MC_EnB to PD13, close SB14.
Default setting: Open
FSMC
SB15 To connect MC_EnA to PD12 close SB15.
Default setting: Open

Hardware layout and configuration UM1460
16/67 DocID022136 Rev 5
2.10 Smartcard
STMicroelectronics smartcard interface chip ST8024 is used on the STM3241G-EVAL
board for asynchronous 3 V and 5 V smartcards. It performs all supply protection and
control functions based on the connections with the STM32F417IGH6 listed in Table 9:
Smartcard shares some I/Os with I2S bus for audio. Some jumper settings need to be
reconfigured to enable Smartcard as indicated below:
2.11 microSD card
The 1 Gbyte or more microSD card connected to SDIO of the STM32F417IGH6 is available
on the board. microSD card detection is managed by the standard I/O port PH13. The
microSD card shares I/Os with motor control, RS-232 and audio.
The jumpers JP22 and JP16 must be refit and motor control connector (CN5) must be
disconnected for microSD card function.
Table 9. ST8024 and STM32F417IGH6 connections
ST8024 signals Description Connect to STM32F417IGH6
5V/3V Smartcard power supply selection pin PH15
I/OUC MCU data I/O line PC6
XTAL1 Crystal or external clock input PG7
OFF Detect presence of a card, MCU interrupt, share
same pin with motor controller. PF6
RSTIN Card reset input from MCU PF7
CMDVCC Start activation sequence input (Active Low),
share same pin with I2S DAC and motor control. PG12
Table 10. Smartcard related jumper
Jumper Description
JP21
To connect Smartcard_IO to PC6, JP21must be fitted.
JP21 must not be fitted for Audio DAC connection to I2S.
Default setting: Not fitted
Table 11. microSD card related jumpers
Jumper Description
JP22 Description of JP22 is in Section 2.8: RS-232 and IrDA
JP16
PC9 is connected to MicroSDCard_D1 when JP16 is set as shown to the
right: (Default setting):
PC9 is connected to I2S_CKIN when JP16 is set as show to the right:
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66
2.12 ST MEMS
The ST MEMS device LIS302DL is connected to the I2C1 bus of the STM32F417IGH6 on
the board.
2.13 Potentiometer
A 10 kΩpotentiometer RV1 is connected to PF9 of the STM32F417IGH6 on the board.
2.14 ADC
Two test points (TP3 AIN-) and (TP4 AIN+) are placed close to MCU port PC1 allowing
precise measurements on ADC1, ADC2 and ADC3 channel 11. As PC1 is also used as
current A input on the motor control connector it is recommended to remove R219 to
optimize noise immunity on this input.
A potentiometer RV1 is connected to PF9 of the STM32F417IGH6. If needed, a low-pass
filter (R74 and C59) can be placed on this input to reduce the bandwidth of the analog input
PF9.
It is also possible to place the Ethernet PHY (U5) in low-power mode in order to reduce the
noise induced by this high-frequency peripheral. Power down pin (MII_INT in the schematic)
is connected to PB14 of the MCU, so this I/O can be configured as output low during analog
precision measurement.
2.15 USB-OTG FS
The STM3241G-EVAL evaluation board enables USB-OTG full speed communication via a
USB Micro-AB connector (CN8) and USB power switch (U1) connected to VBUS. The board
can be powered by this USB connection at 5 V DC with a 500 mA current limitation.
LED LD6 indicates that either:
•Power switch (U1) is ON and STM3241G-EVAL is working as a USB host or
•VBUS is powered by another USB host while STM3241G-EVAL is working as a USB
device.
LED LD5 indicates an over-current.

Hardware layout and configuration UM1460
18/67 DocID022136 Rev 5
2.16 Ethernet
The STM3241G-EVAL evaluation board enables 10/100M Ethernet communication by a
PHY DP83848CVV (U5) and integrated RJ45 connector (CN7). Both MII and RMII interface
modes can be selected by setting jumpers JP5, JP6 and JP8 as listed in Table 12:
Note: 1 A test point (TP2) is available on the board for the PTP_PPS feature test.
2 The Ethernet PHY (U5) can be powered down by regulating PB14.
3 In RMII mode the 50 MHz clock must be provided to Ethernet PHY by an external oscillator.
This oscillator (ref SM7745HEV-50.0M or equivalent, not provided with the board) must be
soldered on the U3 footprint (located under CN3) and JP5 must be removed.
Table 12. Ethernet related jumpers and solder bridges
Jumper Description
JP8 JP8 selects MII or RMII interface mode. To enable RMII interface mode, JP8 is fitted.
To enable MII, JP8 is not fitted. Default setting: Not fitted
JP6
To enable MII interface mode, set JP6 as shown (Default setting):
To enable RMII interface mode, set JP6 as shown:
JP5
To provide 25 MHz clock for MII or 50 MHz clock for RMII by MCO at PA8, set
JP5 as shown (Default setting):
To provide 25 MHz clock by external crystal X1 (for MII interface mode only) set
JP5 as shown:
When clock is provided by external oscillator U3, JP5 must not be fitted.
SB1
SB1 selects clock source only for RMII mode.
To connect the clock from oscillator U3 to RMII_REF_CLK, close SB1.
The resistor R212 has to be removed in this case.
Default setting: Closed.
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UM1460 Hardware layout and configuration
66
2.17 USB-OTG HS
The STM3241G-EVAL evaluation board enables USB-OTG HS communication via USB
micro-AB connector (CN9), USB high-speed PHY (U8) and USB power switch (U4)
connected to VBUS. The STM3241G-EVAL can be powered by CN9 at 5 V DC with a
500 mA current limitation.
LED LD7 indicates that USB power switch (U4) is ON and STM3241G-EVAL is working as a
USB host, or that VBUS is powered by another USB host when STM3241G-EVAL is
working as a USB device. LED LD8 indicates an over-current.
The USB ULPI bus is shared with the CAN2 bus. JP10 and JP3 must be kept open for USB-
OTG HS.
Note: On MB786 boards prior to version B03 it is possible that after a board RESET the MCU isno
longer able to control communication with the OTG PHY (U8). When this issue occurs the
only way to recover OTG PHY control is to power the board OFF and ON. This issue is fixed
on MB786 version B03 or newer.
2.18 Camera module
A camera module is connected to the DCMI bus of the STM32F417IGH6 and shares the
same I/Os with the motor control connector. SB16 must be kept open for camera module
application. There are two possible modules and omnivision cameras populated on the
CN15 connector of the board:
•1.3 Megapixel: Module CN01302H1045-C: Camera OV9655
•2 Megapixel: Module CN020VAH2554-C: Camera OV2640
Note: 1 When the camera demo loaded in Flash is executed, some green pixels may appear in high-
contrast zones, depending on the image captured.
2 The camera is not firmly fitted on its connector (CN15). It is possible that during shipment
the camera could be unplugged. In this case the user needs to plug it into the correct
position as shown on the picture below (pin 1 dot on top left corner of the socket).
It is not recommended to remove it, in order to avoid false contact later.
Table 13. microSD card related jumper
Jumper Description
JP31 To disable USB-OTG PHY U8, JP31 is not fitted.
Default setting: Fitted
Table 14. Camera module related jumpers
Jumper Description
JP26 To set power down mode for the camera module, JP26 is fitted.
Default setting: Not fitted
SB16 Description of SB16 is in Section 2.9: Motor control.

Hardware layout and configuration UM1460
20/67 DocID022136 Rev 5
Figure 4. Pin 1 camera plug
1. Picture is not contractual
The camera extension connector CN23 is available on the board to connect the ST camera
plug-in board.
2.19 SRAM
The 16 Mbit SRAM is connected to the FSMC bus of the STM32F417IGH6 which shares the
same I/Os with the CAN1 bus.
JP3 and JP10 must not be fitted for SRAM and LCD application.
Table 15. SRAM related jumpers
Jumper Description
JP1
Connect PE4 to SRAM as A20 by setting JP1 as shown
(Default setting):
Connect PE4 to trace connector CN13 as TRACE_D1 by setting JP1 as shown:
JP2
Connect PE3 to SRAM as A19 by setting JP2 as shown
(Default setting):
Connect PE3 to trace connector CN13 as TRACE_D0 by setting JP2 as shown:
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