UM2032 User manual€¦ · 6.1 32F412GDISCOVERY discovery kit mechanical drawing Figure 6. 32F412GDISCOVERY mechanical drawing 6.2 Embedded ST-LINK/V2-1 ST-LINK/V2-1 programming and

November 2016 DocID029078 Rev 2 1/48

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UM2032User manual

Discovery kit with STM32F412ZG MCU

Introduction

The 32F412GDISCOVERY discovery kit is a complete demonstration and development platform for STMicroelectronics ARM® Cortex® -M4 core-based STM32F412ZGT6 microcontroller. This microcontroller features four I2C buses, four USART ports, five SPI ports with two multiplexed full-duplex I2S buses, SDIO interface, USB OTG full-speed 2.0 port, two CAN buses, FMC parallel interface, two digital filters for sigma-delta modulators, PDM interface for two digital microphones, one 12-bit ADC, dual Quad-SPI interface, JTAG and SWD debugging support. This discovery kit offers everything required for users to get started quickly and develop applications easily.

A full range of hardware features on the board helps users to evaluate on-board peripherals such as: USB OTG FS, microSD™ card, full-duplex I2S with an audio codec and stereo jack for headset including analog microphone, DFSDM with a pair of ST-MEMS digital microphones on board, Quad-SPI Flash memory device, 1.54" TFT LCD using FMC interface with capacitive touch panel. The Arduino™ Uno V3 compatible connectors expand the functionality with a wide choice of specialized shields. The extension connectors allow easy connection of a daughterboard for specific customer applications. The integrated ST-LINK/V2-1 provides an embedded in-circuit debugger and programmer for the STM32.

1. Pictures are not contractual.

Figure 1. 32F412GDISCOVERY (top view) Figure 2. 32F412GDISCOVERY (bottom view)

www.st.com

http://www.st.com

Contents UM2032

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Contents

1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Product marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5 Technology partner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6 Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

6.1 32F412GDISCOVERY discovery kit mechanical drawing . . . . . . . . . . . . .11

6.2 Embedded ST-LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6.2.1 Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6.2.2 ST-LINK/V2-1 firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6.3.1 Power supply sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6.3.2 STM32 power supply options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.3.3 Modification of STM32 voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.3.4 Supplying the 32F412GDISCOVERY through the ST-LINK/V2-1 USB port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6.3.5 Programming/debugging when the power supply is not from ST-LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.3.6 Measurement of current IDD drawn by the microcontroller . . . . . . . . . . 15

6.4 Clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.4.1 HSE clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.4.2 LSE clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.5 Reserved use of solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.6 Reset source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.7 Boot options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.8 Audio codec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.8.1 Stereo headset and headphone jack . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.8.2 Loudspeaker output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.9 Digital microphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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6.10 USB OTG FS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.10.1 32F412GDISCOVERY is USB device . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.10.2 32F412GDISCOVERY is USB host . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.11 microSD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.12 I2C extension connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.13 Quad-SPI NOR Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.14 Virtual COM port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.15 Arduino Uno V3 connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.16 Extension connectors P1 and P2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.17 LCD display, backlight and touch panel . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.17.1 LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.17.2 LCD signal access (CN7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.17.3 Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.17.4 Touch panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.18 Joystick and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.1 I2C extension connector CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.2 USB OTG FS Micro-AB connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.3 microSD connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7.4 ST-LINK/V2-1 USB Micro-B connector CN6 . . . . . . . . . . . . . . . . . . . . . . 31

Appendix A Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Appendix B Federal Communications Commission (FCC) and Industry Canada (IC) Compliance Statements. . . . . . . . . . . . . 45

B.1 FCC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

B.1.1 Part 15.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

B.1.2 Part 15.105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

B.1.3 Part 15.21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

B.2 IC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

B.2.1 Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

B.2.2 Déclaration de conformité. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Appendix C CISPR32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

C.1 Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Contents UM2032

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Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

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UM2032 List of tables

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List of tables

Table 1. Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 2. Power-supply-related jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Table 3. Boot options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Table 4. Boot-related solder bridge and resistor settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Table 5. Arduino Uno V3 compatible connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Table 6. Pin assignment for the extension connector P1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Table 7. Pin assignment for the extension connector P2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Table 8. Pin assignment for connector CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Table 9. Pin assignment for connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Table 10. Port assignment to the LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Table 11. I2C extension connector pinout CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Table 12. USB OTG FS Micro-AB connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Table 13. microSD connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Table 14. USB Micro-B connector CN6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Table 15. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

List of figures UM2032

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List of figures

Figure 1. 32F412GDISCOVERY (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Figure 2. 32F412GDISCOVERY (bottom view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Figure 3. Hardware block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 4. 32F412GDISCOVERY top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 5. 32F412GDISCOVERY bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 6. 32F412GDISCOVERY mechanical drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Figure 7. USB composite device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Figure 8. R90 and R92 resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Figure 9. I2C extension connector CN10 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Figure 10. USB OTG FS Micro-AB connector CN3 (front view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Figure 11. microSD connector CN13 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Figure 12. USB Micro-B connector CN6 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Figure 13. 32F412GDISCOVERY discovery kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Figure 14. 32F412GDISCOVERY MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Figure 15. 32F412GDISCOVERY Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Figure 16. 32F412GDISCOVERY LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Figure 17. 32F412GDISCOVERY Quad-SPI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Figure 18. 32F412GDISCOVERY Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Figure 19. 32F412GDISCOVERY Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Figure 20. 32F412GDISCOVERY USB OTG FS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Figure 21. 32F412GDISCOVERY extension connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Figure 22. 32F412GDISCOVERY Arduino Uno V3 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Figure 23. 32F412GDISCOVERY ST-LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

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UM2032 Features

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1 Features

• STM32F412ZGT6 microcontroller featuring 1 Mbyte of Flash memory and 256 Kbytes of RAM in LQFP144 package

• On-board ST-LINK/V2-1 SWD debugger, supporting USB re-enumeration capability:

– Virtual COM port

– Mass storage

– Debug port

• 1.54-inch, 240x240-pixel TFT color LCD with parallel interface

• I2S audio codec, with a stereo headset jack, including analog microphone input and a loudspeaker output

• Stereo digital ST-MEMS microphones.

• microSD™ card connector

• I2C extension connector

• 128-Mbit Quad-SPI NOR Flash memory

• Reset button and joystick

• Four-color user LEDs

• USB OTG FS with Micro-AB connector

• Four options for power-supply source:

– ST-LINK/V2-1 USB connector

– User USB FS connector

– VIN from Arduino™ Uno V3 connector

– +5 V from Arduino™ Uno V3 connector

• Two supply voltage options for STM32: 2.0 V and 3.3 V

• Compatible Arduino™ Uno V3 connectors

• Extension connectors for direct access to various features of the STM32F412ZGT6

• Comprehensive free software including a variety of examples, part of the STM32Cube package

2 Demonstration software

Demonstration software is preloaded in the STM32F412ZGT6 Flash memory. The latest version of the demonstration source code and the associated documentation can be downloaded from the www.st.com/stm32f4-discovery webpage.

http://www.st.com/stm32f4-discovery

http://www.st.com/stm32f4-discovery

Product marking UM2032

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3 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.

4 Ordering information

To order the 32F412GDISCOVERY discovery kit refer to Table 1:

5 Technology partner

MICRON:

• 128-Mbit Quad-SPI NOR Flash memory device, part number N25Q128A

Table 1. Ordering information

Order code Target STM32

STM32F412G-DISCO STM32F412ZGT6

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6 Hardware layout and configuration

The 32F412GDISCOVERY discovery kit is designed around the STM32F412ZGT6 (144-pin TQFP package). The hardware block diagram showed in Figure 3, illustrates the STM32F412ZGT6 connections with the peripherals. Figure 4 and Figure 5 show the location of the main components on the discovery kit.

Figure 3. Hardware block diagram

Hardware layout and configuration UM2032

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Figure 4. 32F412GDISCOVERY top layout

Figure 5. 32F412GDISCOVERY bottom layout

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6.1 32F412GDISCOVERY discovery kit mechanical drawing

Figure 6. 32F412GDISCOVERY mechanical drawing

6.2 Embedded ST-LINK/V2-1

ST-LINK/V2-1 programming and debugging tool is integrated into the 32F412GDISCOVERY discovery kit. Compared to ST-LINK/V2 stand-alone tool available from STMicroelectronics, ST-LINK/V2-1 offers new features and drops some others.

New features:

• 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

Feature dropped:

• SWIM interface

For all general information concerning debugging and programming features common between V2 and V2-1 versions, refer to ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 User manual (UM1075) at the www.st.com website.

28

1

6

5

48 5

4

1312

48

1

8

24

37

112

56

10

7

25

36

25

21

1

109

108

73

6

2

1

72

144

37

1 8

8 1

8

5

36

4

5 31

D

A

50

49

50

49

29 28

22

2

23

44

226

1

50.8

1725.08

22.86

65.68

59.35

4.06

23.79

67 48.26


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6.2.1 Drivers

Before connecting STM32F412ZGT6 to a Windows® XP, 7 or 8 PC via USB, a driver for ST-LINK/V2-1 must be installed. It can be downloaded from the www.st.com website.

In case the 32F412GDISCOVERY discovery kit is connected to the PC before the driver is installed, some 32F412GDISCOVERY 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 7).

Note: Prefer using the "USB Composite Device" handle for a full recovery.

Figure 7. USB composite device

6.2.2 ST-LINK/V2-1 firmware upgrade

ST-LINK/V2-1 employs a dedicated MCU with Flash memory. Its firmware determines ST-LINK/V2-1 functionality and performance. The firmware may evolve during the life span of the 32F412GDISCOVERY to include new functionalities, fix bugs or support new target microcontroller families. It is therefore recommended to keep the ST-LINK/V2-1 firmware up to date. The latest version is available from the www.st.com website.

6.3 Power supply

6.3.1 Power supply sources

The 32F412GDISCOVERY discovery kit is designed to be powered by the following sources:

• 5 V DC from the ST-LINK/V2-1 USB connector CN6 with 500 mA current limitation. Power mechanism of supplying the discovery kit by the ST-LINK/V2-1 is explained in Section 6.3.4: Supplying the 32F412GDISCOVERY through the ST-LINK/V2-1 USB port. A jumper should be placed in location STLK of JP3, connecting pins 3 and 4. The green LED LD6 is lighted on to confirm the presence of +5 V voltage.

• 5 V DC from the user USB FS connector CN3. A jumper should be placed in location USB of JP3, connecting pins 5 and 6. The green LED LD6 is lighted on to confirm the presence of +5 V voltage.

• 6 V to 9 V DC from VIN pin of Arduino Uno V3 compatible connector CN2. The voltage is limited to 9 V to keep the temperature of the regulator U3 within his thermal safe

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area. A jumper should be placed in location E5V of jumper JP3, connecting pin 1 to pin 2 of JP3. The green LED LD6 is lighted on to confirm the presence of +5 V voltage.

• 5 V DC from +5 V pin of Arduino Uno V3 connector (CN2 pin 5) with limitations. The jumpers on JP3 and CN5 have to be removed, SB21 (NRST) and SB28 (SWO) have to be opened. In such configuration the ST-LINK/V2-1 MCU is not powered, as consequence the 8 MHz of the ST-LINK/V2-1 cannot be used as external input clock for the STM32.

For details on JP3 jumper setting refer to Table 2: Power-supply-related jumper settings.

6.3.2 STM32 power supply options

The 32F412GDISCOVERY offers the possibility to supply the STM32 under 2.0 V or 3.3 V. A jumper has to be placed in location 2.0 V of JP5 to supply the STM32 under 2.0 V, then pins 2 and 3 are connected. Similarly the jumper has to be placed in 3.3 V to supply the STM32 with 3.3 V, then pins 1 and 2 of JP5 are connected.

For details on JP5 jumper setting refer to Table 2: Power-supply-related jumper settings.

6.3.3 Modification of STM32 voltage

Regulator U16 LD1117STR is dedicated to the 2.0 V supply. The output voltage of U16 is by default 2.0 V but it is adjustable depending on the resistors R90 and R92 which are by default 120 and 68 ohms respectively. The output voltage is calculated as following:

with VREF = 1.25 V.

If necessary, resistors R90 and R92 can be changed to modify the STM32 supply voltage. R90 and R92 are easily located bottom side of the discovery kit near U16 (see Figure 5 and Figure 8).

VOUT VREF 1 R92( ) R90( )÷+( )×=


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Figure 8. R90 and R92 resistors

6.3.4 Supplying the 32F412GDISCOVERY through the ST-LINK/V2-1 USB port

To power the 32F412GDISCOVERY through the ST-LINK/V2-1, the USB host (a PC) gets connected with the 32F412GDISCOVERY Micro-B USB receptacle CN6, via a USB cable. This event starts the USB enumeration procedure. In its initial phase, the current supply capability of the USB port located on the host, is limited to 100 mA. It is enough because only the ST-LINK/V2-1 part of the 32F412GDISCOVERY discovery kit draws power at that time. If the solder bridge SB18 is open (default configuration), the U8 ST890 power switch is set to OFF position, and only the ST-LINK/V2-1 is powered. In the next phase of the enumeration procedure, the host PC informs the ST-LINK/V2-1 facility of its capability to supply up to 500 mA of current. If the answer is positive, the ST-LINK/V2-1 sets the U8 ST890 switch to ON position to supply power to the remainder of the 32F412GDISCOVERY discovery kit. If the PC USB port is not capable of supplying up to 500 mA of current, another power source should be used like VIN pin of connector CN2.

Should a short-circuit occur on the discovery kit, the ST890 power switch protects the USB port of the host against current demand exceeding 600 mA. In such an event, the red LED FAULT LD10 lights on.

The 32F412GDISCOVERY discovery kit can also be supplied from a USB power source not supporting enumeration, such as a USB charger. In this particular case, SB18 solder bridge must be closed. ST-LINK/V2-1 turns the ST890 power switch ON regardless of the enumeration procedure result and passes the power unconditionally to the discovery kit.

The green LED LD6 turns on whenever the discovery kit is powered.

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6.3.5 Programming/debugging when the power supply is not from ST-LINK/V2-1

Before connecting the USB cable from the ST-LINK/V2-1 USB connector CN6 to the PC, it is mandatory to power the discovery kit using the user USB FS connector CN3 or the VIN pin of the Arduino Uno V3 connector CN2. Proceeding this way, ensures that the enumeration succeeds thanks to the external power source.

The following power sequence procedure must be respected:

1. Put a jumper in JP3 at location USB to use power from the user USB CN3 or at location E5V to use power from VIN of Arduino Uno V3 connector CN2.

2. Connect the corresponding external power source.

3. Check that the green LED LD6 is turned ON

4. Connect the PC to the ST-LINK/V2-1 USB connector CN6

If this order is not respected, the discovery kit may be powered by VBUS first from ST-LINK/V2-1, and the following risks may be encountered:

1. If more than 500 mA current is needed by the discovery kit, the PC may be damaged or current can be limited by PC. As a consequence the discovery kit is not powered correctly.

2. 500 mA is requested at the enumeration. If the PC cannot provide such current there is a risk that the request is rejected and the enumeration does not succeed.

6.3.6 Measurement of current IDD drawn by the microcontroller

The jumper JP7 should be closed by default to supply the STM32F412ZGT6. To measure the current IDD drawn by the microcontroller STM32F412ZGT6 only, remove the jumper JP7 and replace it by a multimeter (see Table 2).

Table 2. Power-supply-related jumper settings

Jumper Description

JP3

Default Setting

32F412GDISCOVERY is supplied through the Micro-B ST-LINK/V2-1 connector CN6. Jumper in STLK place.

32F412GDISCOVERY is supplied through CN3 Micro-AB USB FS connector. Jumper in USB place.

USB

STLK

E5V

1

USB

STLK

E5V1


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JP3

32F412GDISCOVERY is supplied through the VIN pin of the Arduino Uno V3 compatible connector CN2. Jumper in E5V place.

32F412GDISCOVERY is supplied by +5 V pin of Arduino Uno V3 compatible connector CN2 (pin 5) or by pins 3 or 4 of the extension connector P2. No jumper in JP3.

JP5

Default Setting

STM32F412ZGT6 is supplied with a +3.3 V voltage (VDD_MCU).

STM32F412ZGT6 STM32 is supplied with a +2.0 V voltage (VDD_MCU).

JP6

Default Setting

VDD_USB power pin of STM32F412ZGT6 is supplied with same voltage VDD_MCU as remainder supply pins of STM32.

Table 2. Power-supply-related jumper settings (continued)

Jumper Description

USB

STLK

E5V

1

USB

STLK

E5V1

+3V

3

1

+2V

+2V

+

3V3

1V

DD

+

3V3

1

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JP6

VDD_USB power pin of STM32F412ZGT6 is supplied with a fix voltage of +3V3 independently of the remainder of supply pins of STM32.

JP7

Default Setting

JP7 IDD is closed by default to supply the STM32F412ZGT6 and when removed, it offers the possibility to insert an ammeter to measure the current drawn by the STM32 only.

Table 2. Power-supply-related jumper settings (continued)

Jumper Description

VD

D

+3V

3

1

IDD


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6.4 Clock source

6.4.1 HSE clock source

By default the 8 MHz clock source is provided to the STM32F412ZGT6 by the MCO output of the ST-LINK/V2-1 MCU U6. In that case the solder bridge SB20 is closed, resistors R45 and R46 are not soldered, solder bridge SB22 is open. The pins PH0 and PH1 are not available for the extension connector P2.

Alternatively, the discovery kit offers the possibility to use a crystal to provide the 8 MHz HSE clock source of the STM32F412ZGT6 U7. In that case, PH0 and PH1 are used as OSC_IN and OSC_OUT respectively. The solder bridges SB20, SB22, SB16 must be opened, 0 ohm resistors should be soldered to R45 and R46 and a crystal must be soldered in place X2. Regarding component selection of X2, capacitors C19 and C21 (8.2 pF) are optimized for a crystal NDK NX3225GD 8 MHz EXS00A-CG04874 and they are not fitted. The pins PH0 and PH1 are not available for the extension connector P2.

6.4.2 LSE clock source

By default, the 32.768 kHz crystal X3 is connected to pins PC14-OSC32_IN and PC15-OSC32_OUT of STM32F412ZGT6 for the RTC clock. Solder bridges SB25 and SB23 must be open.

If LSE clock is not used, it is possible to use PC14-OSC32_IN and PC15-OSC32_OUT of STM32F412ZGT6 and to access by the extension connector P2. In that case, solder bridges SB25 and SB23 must be closed and resistors R54, R56 removed.

6.5 Reserved use of solder bridges

The following solder bridges must not be changed otherwise the microcontroller STM32F412ZGT6 U7 or other parts of the discovery kit may be damaged:

• Solder bridges must be left closed: SB34, SB26

• Solder bridges must be left open: SB27, SB35

6.6 Reset source

The reset signal of 32F412GDISCOVERY discovery kit 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 SB21 is closed (default setting)

• Arduino Uno V3 compatible connector CN2 pin 3

• Extension connector P1 pin 6

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6.7 Boot options

After reset, the STM32F412ZGT6 boots from the following embedded memory locations depending on bits BOOT0 and BOOT1 (see Table 3):

• User Flash memory (non-protected)

• System Flash memory (protected) for In Circuit Programming

• RAM for debugging

BOOT0 is set by the input pin BOOT0 of the STM32F412ZGT6. Its level is set by default to 0 by closing the solder bridge SB31 and keeping R69 unfitted. BOOT1 is shared with the GPIO PB2 used as QSPI_CLK and is sampled by the STM32F412ZGT6 only at RESET phase. At start-up, BOOT1 level depends on the resistors R104 and R100. By default R100 and R104 are not fitted on the discovery kit to avoid any influence on the QSPI_CLK signal using same pin as BOOT1.

The application note “STM32 microcontroller system memory boot mode” Application note (AN2606) details the bootloader mechanism and configurations.

Boot-related solder bridge and resistor settings are reported in Table 4:

Table 3. Boot options

BOOT0 BOOT1 Boot Memory

0 X User Flash

1 0 System Flash

1 1 RAM

Table 4. Boot-related solder bridge and resistor settings

Resistors, solder bridge Description

SB31 Closed

R69 not fitted

BOOT0=0

R100 and

R104 not fitted

BOOT1=X

Default Setting

Microcontroller STM32F412ZGT6 boots from user Flash.

SB31 Open

R69 fitted

(any value from 0 to 10K)

BOOT0=1

R100 not fitted

R104 fitted (1)

BOOT1=0

1. To keep Quad-SPI functionality after boot-up phase, the user should select a resistor value of R100 or R104 insuring a weak pull-down or weak pull-up respectively.

Microcontroller STM32F412ZGT6 boots from system Flash.

R104 is a pull-down resistor on PB2 shared between BOOT1 and QSPI_CLK.

R100 fitted(1) R104 not fitted

BOOT1=1

Microcontroller STM32F412ZGT6 from RAM.

R100 is a pull-up resistor on PB2 shared between BOOT1 and QSPI_CLK.


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6.8 Audio codec

A Cirrus/Wolfson codec WM8994 U15 connected to the I2S3 interface of the microcontroller STM32F412ZGT6 offers possibility to connect a stereo headphone or headset with a mono-analog microphone. A loudspeaker can be connected to the extension connector.

The digital audio output from the microcontroller is handled by the port of the microcontroller PB5 called CODEC_I2S3_SD while the other direction is handled by port PB4 called CODEC_I2S3ext_SD.

The I²C-bus address of WM8994 is 0b0011010.

6.8.1 Stereo headset and headphone jack

A stereo headphone or a stereo headset with analog microphone can be plugged into the 3.5 mm standard jack socket CN9.

The stereo digital audio streamed from pin PB5 of the microcontroller STM32F412ZGT6 is transformed in a stereo analog output by the codec WM8994 and is delivered to the headphone or headset through the pins 6 and 4 of the jack socket CN9.

If a headset is plugged into CN9, the bias of the microphone is driven by the output MICBIAS1 of the codec and the analog audio enters into the codec by the pin IN1LN.

The corresponding digital audio output from the codec is connected to the microcontroller STM32F412ZGT6 by the port PB4.

6.8.2 Loudspeaker output

The 32F412GDISCOVERY discovery kit can deliver a monophonic audio to a loudspeaker connected to pins 36 and 38 of the extension connector P2. It is recommended to use the WM8994 codec loudspeaker outputs SPKOUTRN and SPKOUTRP in linear mode called "class AB". This mode is compatible with 4-ohm to 8-ohm impedance loudspeakers. Use of the switching mode called "class D" requires to use an appropriate filter to maximize rejection of unwanted frequencies and efficiency. To select the mode "class AB" of the codec WM8994, set to 1 the bit 8 of the register 0x23.

6.9 Digital microphones

Two ST-MEMS MP34DT01TR digital microphones U4 and U5 are available on the 32F412GDISCOVERY discovery kit. The two microphones are located at a distance of 21 mm each other. The microphones are connected to the DFSDM of the STM32 by the port PC2 generating the clock and by the port PB1 collecting the PDM interleaved data.

6.10 USB OTG FS

A USB OTG full-speed communication is available at USB Micro-AB receptacle connector CN3.

Limitations: the USB-related operating supply voltage of STM32L412ZGT6 (VDD_USB line) must be within the range from 3.0 V to 3.6 V. Therefore, in case the STM32F412ZGT6 is supplied with 2 V by JP5 set in +2 V position, the USB of the STM32 works only if the VDD_USB power pin is supplied independently by +3.3V. This is done by closing pins 2 and 3 of the jumper JP6 (refer to Table 2: Power-supply-related jumper settings).

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6.10.1 32F412GDISCOVERY is USB device

When the 32F412GDISCOVERY is USB device, the discovery kit is powered by the 5 V of the CN3 USB OTG FS Micro-AB connector. In this case a jumper must be put in USB location of jumper JP3 and the green LEDs LD7 VBUS and LD6 PWR light on to confirm the 5 V presence.

6.10.2 32F412GDISCOVERY is USB host

When the 32F412GDISCOVERY is USB host it supplies the 5V for the USB peripheral using one of the following sources:

• ST-LINK/V2-1 USB Micro-B connector CN6, putting a jumper in STLK location of JP3

• An external +5 V source connected to pins 3 or 4 of the extension connector P2, with no jumper in JP3.

• An external +5V source connected to 5 V pin of Arduino Uno V3 connector CN2, with no jumper in JP3.

• An external source between +7 to +11 V connected to VIN pin of Arduino Uno V3 connector CN2, putting a jumper in E5V location of JP3.

The green LED LD6 is lighted to confirm the presence of the +5 V source.

The power switch STMPS2141STR is controlled by the port PG8 of STM32 to deliver the 5 V power to the USB device connected to the USB connector CN3. It is recommended to use PG8 in open drain mode. When PG8 is closed to ground, the power switch is closed, and the green LED LD7 confirms the 5 V to the USB Device.

The red LED LD8 FAULT is lit when an overcurrent occurs.

For more details refer to Section 6.3: Power supply.

6.11 microSD card

microSD cards with a capacity of 4 Gbytes or more can be inserted in the receptacle CN13. The four bits of the SDIO interface including CLK and CMD signals of the STM32F412ZGT6 are used to communicate with the microSD card. The card detection is read by the GPIO PD3: when a microSD card is inserted, the logic level is 0, otherwise it is 1.

Note that port PC9 used as uSD_D1 can be routed also to the pin 46 of the extension connector P2, by closing the solder bridge SB43 for other usage like the alternate function MCO2. Therefore the use of the microSD card is exclusive with MCO2 output.

Limitations: The microSD card is not working when the STM32 is supplied with 2V.

6.12 I2C extension connector

The I2C2 bus is available on the I2C extension connector CN10. I2C2-SDA (port PB9) is available on pin 1 and I2C2-SCL is available on pin 3. Pins 5 and 7 of CN10 are the VDD and GND supplying the microcontroller. I2C2 voltage levels follows also VDD.


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6.13 Quad-SPI NOR Flash memory

A 128-Mbit Quad-SPI NOR Flash memory (N25Q128A13EF840E from MICRON) is connected to the Quad-SPI interface of the STM32F412ZGT6 microcontroller.

Note that QSPI_CLK (port PB2) is sampled by the STM32F412ZGT6 at start-up as the BOOT1 bit. If necessary, the user can set the BOOT1 state by fitting one of the resistors R100 or R104. By default R100 and R104 are not fitted. Refer to Section 6.7: Boot options for more details.

Limitations: The Quad-SPI memory is not working when the STM32 is supplied with 2 V.

6.14 Virtual COM port

The serial interface USART2 is directly available through a USB virtual COM port of the ST-LINK/V2-1. The USB connector is CN6.

6.15 Arduino Uno V3 connectors

CN1, CN2, CN11 and CN12 are female connectors compatible with Arduino Uno V3 standard. Most shields designed for Arduino Uno V3 can fit to the 32F412GDISCOVERY discovery kit.

Caution: The IOs of STM32 microcontroller are 3.3 V compatible instead of 5 V for Arduino Uno V3.

Table 5. Arduino Uno V3 compatible connectors

Left connectors Right connectors

CN No.Pin No.

Pin name STM32 pin Function FunctionSTM32

pinPin

namePin No. CN No.

- - - - - I2C2_SCL PB10 D15 10

CN12 Digital

- I2C2_SDA PB9 D14 9

- - - - - AVDD - AVDD 8

- - - - - Ground - GND 7

CN2 Power

1 - -Not

connectedSPI1_SCK PA5 D13 6

2 IOREF - 3.3 V SPI1_MISO PA6 D12 5

3 NRST NRST ResetTIM3_CH2, SPI1_MOSI

PA7 D11 4

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Note:1 Important, before using pin 4 of CN2 as +3.3V input, insure that the solder bridge SB4 is removed. Otherwise the 32F412GDISCOVERY discovery kit could be damaged by the overcurrent.

Note:2 The external voltage applied to pin VIN should be in the range 6 to 9V at 25°C ambient temperature. If a higher voltage is applied, the regulator U3 may overheat and could be damaged.

Note:3 By default pin 5 and pin 6 of connector CN1 are connected respectively to the port PC5 (ADC1_IN15) and BP0 (ADC1_IN8) of the STM32. They are enabled by the default configuration of the solder bridges: SB8 and SB6 closed, SB7 and SB5 opened. In case it is necessary to have an I2C interface instead of ADC inputs on pins 5 and 6 of CN1, open SB8 and SB6, and close SB7 and SB5.

Note:4 Important, before using pin 4 of CN2 as +5 V input, insure the jumpers and solder bridges are configured according to 5 V DC power input defined in Section 6.3.1: Power supply sources. Otherwise the 32F412GDISCOVERY discovery kit could be damaged by the overcurrent.

CN2 Power

4 +3V3 -+3.3 V

input/output

(see Note:1)

TIM2_CH1, SPI1_NSS

PA15 D10 3

CN12 Digital5 +5 V -

+5 V input/output (see Note:4)

TIM4_CH3 PB8 D9 2

6 GND - Ground - PG10 D8 1

7 GND - Ground - - - -

8 VIN -+6V to +9V power input (see Note:2)

- PG11 D7 8

CN11 Digital

- - - - - TIM5_CH1 PF3 D6 7

CN1 Analog

1 A0 PA1 ADC1_IN1 TIM5_CH4 PF10 D5 6

2 A1 PC1 ADC1_IN11 - PG12 D4 5

3 A2 PC3 ADC1_IN13 TIM5_CH2 PF4 D3 4

4 A3 PC4 ADC1_IN14 - PG13 D2 3

5 A4PC5 or PB9 (see Note:3)

ADC1_IN15 or

I2C2_SDA (see Note:3)

USART6_TX PG14 D1 2

6 A5PB0 or PB10 (see Note:3)

ADC1_IN8 or

I2C2_SCL (see Note:3)

USART6_RX PG9 D0 1

Table 5. Arduino Uno V3 compatible connectors (continued)

Left connectors Right connectors

CN No.Pin No.

Pin name STM32 pin Function FunctionSTM32

pinPin

namePin No. CN No.


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6.16 Extension connectors P1 and P2

The extension connectors consist in male pin headers P1 and P2 (not soldered by default). They provide access to the following IPs of the STM32F412ZGT6:

• SPI

• I2C with SMBA and FM+ (1 MHz speed)

• Full USART (Rx, Tx, RTS, CTS)

• CAN

• ADC inputs

• TIMERs channels

• I2S full duplex with SD and extSD alternate functions.

• DFSDM input for stereo PDM digital microphones

Most of the ports connected to the extension connectors P1 and P2 are the same for the 32F401CDISCOVERY and 32F411EDISCOVERY discovery kits, to maximize the compatibility with the previous designs. In Table 6, Table 7 and in the 32F412GDISCOVERY schematics (see Section Appendix A: Schematics), the pin numbers corresponding to these ports, are annotated with the star symbol: “*”.

In Table 6, Table 7 and in the 32F412GDISCOVERY schematics (see Section Appendix A: Schematics) the pins belonging to the extension connectors P1 and P2 annotated with a letter, are shared with a peripheral of the 32F412GDISCOVERY (for example, S means that the port PC9 corresponding to pin 46 is also used for microSD, see Table 7).

Table 6. Pin assignment for the extension connector P1

P1 odd pins P1 even pins

Pin No. Name Note Pin No. Name Note

1 GND * 2 GND *

3 VDD_MCU * 4 VDD_MCU *

5 GND * 6 NRST *

7 PC1 *A 8 PC0 *

9 PC3 *A 10 PC2 *D

11 PA1 *A 12 - -

13 PA3 *V 14 PA2 *V

15 PA5 *A 16 PA4 *C

17 PA7 *A 18 PA6 *A

19 PC5 *A 20 PC4 *A

21 PB1 *D 22 PB0 *A

23 GND * 24 PF2 -

25 PF3 A 26 - -

27 PF10 A 28 PF11 -

29 - - 30 PF13 -

31 PG2 C 32 - -

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33 PG9 A 34 PB10 *A

35 PB11 *D 36 PB12 *C

37 PB13 * 38 PB14 *

39 PB15 * 40 - -

41 - - 42 - -

43 - - 44 PD12 *

45 PD13 * 46 - -

47 - - 48 - -

49 GND * 50 GND *

Table 7. Pin assignment for the extension connector P2



1 GND * 2 GND *

3 +5V * 4 +5V *

5 +3V3 * 6 +3V3 *

7 PH0 * 8 PH1 *

9 PC14 * 10 PC15 *

11 PE6 * 12 PC13 *

13 PE4 * 14 PE5 *

15 PE2 * 16 PE3 *

17 PE0 * 18 PE1 *

19 PB8 *A 20 PB9 *A

21 BOOT0 * 22 VDD_MCU *

23 PB6 *TC 24 PB7 *TC

25 PB4 *C 26 PB5 *C

27 - - 28 PB3 *

29 - - 30 PD6 *

31 PG10 A 32 PG11 A

33 PG12 A 34 PG13 A

35 PG14 A 36 SPKOUTRN -

37 - - 38 SPKOUTRP -

39 PA14 * 40 PA15 *A

Table 6. Pin assignment for the extension connector P1 (continued)




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Note:1 The star symbol “*” means pin compatible with 32F401CDISCOVERY and 32F411EDISCOVERY discovery kits.

Note:2 Meaning of the letters: “A”: shared with Arduino Uno V3 connectors, C: shared with codec, D: shared with digital microphones, V: shared with virtual COM port, T: shared with capacitive touch panel, S: shared with microSD.

6.17 LCD display, backlight and touch panel

6.17.1 LCD display

The display is a 1.54-inch, 240x240 pixels TFT color LCD with capacitive touch panel. It displays up to 262 K colors. The LCD parallel interface is connected to the FMC of the STM32F412ZGT6 by the connector CN15 (see Table 8).

To enable the data bus of the LCD display in 16-bit mode, the solder bridges SB41 and SB42 are opened and closed respectively by default. In this way the IM signal of the LCD is set to high.To use the LCD in 8-bit mode, SB41 must be closed and SB42 opened.

The selection of the LCD is performed by FMC_NE1 (PD7), write-enable signal is FMC_NWE (PD5) and read-enable is FMC_NOE (PD4). The address bit A0 of the FMC (Flexible Static Memory Controller) is used to select data/command access to the LCD.

The port PG4 should be used as an input of the microcontroller connected to the LCD signal TE (Tearing Effect). To avoid visible artifacts on the display, TE signal is used to synchronize the refresh of the LCD memory done by the microcontroller with the LCD scan.

The port PD11 of the STM32F412ZGT6 controls the reset of the LCD display LCD_RESET.

41 PA10 * 42 PA13 *

43 PA8 *D 44 - -

45 - - 46 PC9 *S

47 PC6 * 48 PC7 *C

49 GND * 50 GND *

Table 7. Pin assignment for the extension connector P2 (continued)



Table 8. Pin assignment for connector CN15

CN15 pinSignal name

DescriptionSTM32 pin involved

1 GND Ground GND

2 LCD_TE Tearing Effect output pin to send an interrupt to STM32 PG4

3 D15 Data connected to FMC PD10



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6.17.2 LCD signal access (CN7)

CN7 is the footprint of a dual-row, through-hole, 26-pin header with 2.54 mm pitch. The header CN7 gives an easy access to the FMC signals of the LCD (see Table 9).

6 D12 Data connected to FMC PE15













19 /RD Read of LCD connected to FMC_NOE PD4

20 /WR Write of LCD connected to FMC_NWE PD5

21 RS Data/Command select connected to A0 PF0

22 /CS Chip Select of LCD connected to FMC_NE1 PD7

23 RESET LCD RESET PD11

24 IM 8-bit (low)/16-bit (high) mode selection pin n/a

25 IOVCC LCD I/Os power supply connected to VDD n/a

26 VCI Power supply connected to +3.3V n/a

27 GND Ground GND

28 LEDA Anode of backlight LED n/a

29 LEDK Cathode of backlight LED n/a

Table 8. Pin assignment for connector CN15 (continued)

CN15 pinSignal name

DescriptionSTM32 pin involved

Table 9. Pin assignment for connector CN7

CN7 odd pins Signal name CN7 even pins Signal name

1 A0 2 LCD_BLCTRL

3 FMC_NWE 4 GND

5 FMC_NE1 6 FMC_NOE

7 D0 8 D1


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6.17.3 Backlight

LEDK and LEDA signals of the LCD module are the cathode and the anode respectively of the backlight LEDs.

The backlight requires a current source of typically 15 mA capable to deliver a voltage up to 10 V. This function is handled by the backlight-driver circuit STLD40DPUR that is a switching-mode-boost converter, supplied by the +5 V rail of the discovery kit.

The high level on the signal LCD_BLCTRL (PF5) lights the backlight on. It is possible to dim the backlight intensity by applying a low-frequency PWM signal to LCD_BLCTRL (1 to 10 kHz).

6.17.4 Touch panel

The touch panel is a capacitive touch panel using an I2C interface. The 10-pin connector CN14 of the touch panel is located at the bottom side of the discovery kit (see Figure 5: 32F412GDISCOVERY bottom layout). The I2C SDA line is connected to PB7 and the I2C SCL line is connected to PB6. An interrupt output CTP_INT is connected to port PG5 to be used as an interruption input of the microcontroller. Port PF12 is the reset of the capacitive touch panel.

6.18 Joystick and LEDs

The blue button B2 is a 4-direction joystick with a selection mode when pressed in the center. The logic state is high when one of the five-position switches (Left, Right, Up, Down, Selection) is pressed. The center position is connected to a wake-up pin of the microcontroller PA0. This offers the possibility to wake-up the microcontroller by pressing the center of the joystick.

Four LEDs located near the Arduino Uno V3 connectors CN1 and CN2 are available for the user (refer to the Figure 4: 32F412GDISCOVERY top layout). From left to right the user finds LD1, LD2, LD3 and LD4 with their colors green, orange, red and blue respectively. To light a LED a low-logic state 0 must be written in the corresponding GPIO.

Table 10 gives the assignment of control ports to the LED indicators.

9 D2 10 +3.3V

11 D3 12 VDD

13 LCD_TE 14 LCD_RESET

15 D4 16 D5

17 D6 18 D7

19 D8 20 D9

21 D10 22 D11

23 D12 24 D13

25 D14 26 D15

Table 9. Pin assignment for connector CN7 (continued)

CN7 odd pins Signal name CN7 even pins Signal name

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Table 10. Port assignment to the LED indicators

LED Controlled by STM32 port Color

LD1 PE0 Green

LD2 PE1 Orange

LD3 PE2 Red

LD4 PE3 Blue

Connectors UM2032

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7 Connectors

7.1 I2C extension connector CN10

Figure 9. I2C extension connector CN10 (front view)

7.2 USB OTG FS Micro-AB connector CN3

Figure 10. USB OTG FS Micro-AB connector CN3 (front view)

Table 11. I2C extension connector pinout CN10

Pin number Description Pin number Description

1 I2C1_SDA (PB9) 5 VDD

2 NC 6 NC

3 I2C1_SCL (PB10) 7 GND

4 EXT_RESET (PF11) 8 NC

Table 12. USB OTG FS Micro-AB connector CN3


1 VBUS (PA9) 4 ID (PA10)

2 DM (PA11) 5 GND

3 DP (PA12) - -

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UM2032 Connectors

47

7.3 microSD connector CN13

Figure 11. microSD connector CN13 (front view)

7.4 ST-LINK/V2-1 USB Micro-B connector CN6

Figure 12. USB Micro-B connector CN6 (front view)

Table 13. microSD connector CN13

Pin number

DescriptionPin

numberDescription

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 9 GND

5 SDIO_CLK (PC12) 10 MicroSDcard_detect (PD3)

Connectors UM2032

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Table 14. USB Micro-B connector CN6


1 VBUS (power) 4 GND

2 DM 5,6 Shield

3 DP - -

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UM2032 Schematics

47

Appendix A Schematics

This section provides the design schematics for the 32F412GDISCOVERY discovery kit, to help users to implement these features in application designs.

This section includes:

• Overall schematics for the 32F412GDISCOVERY, see Figure 13

• STM32 connections, see Figure 14

• Power supply, see Figure 15

• LCD, camera and connector, see Figure 16

• Quad-SPI, see Figure 17

• Audio amplifier, see Figure 18

• Peripherals, see Figure 19

• USB OTG FS, see Figure 20

• Extension connectors, see Figure 21

• Arduino Uno V3 connector, see Figure 22

• ST-LINK/V2-1, see Figure 23

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Figure 13. 32F412GDISCOVERY discovery kit

1 11

MB1209-TOP

MB1209 D-02

6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A3 Revision:

STM32F412G-DISCOProject:

uSD_D0uSD_D1uSD_D2uSD_D3uSD_CLKuSD_CMD

D[0..15]

A0

NRST

QSPI_BK1_IO3

FMC_NOEFMC_NWE

LED3LED4

QSPI_BK1_IO2

QSPI_BK1_IO0QSPI_BK1_IO1

uSD_Detect

USB_OTGFS_VBUSUSB_OTGFS_ID

USB_OTGFS_DM

DFSDM_DATIN0

QSPI_CLK

DFSDM_CKOUT

FMC_NE1

LCD_RESET

LED1LED2

JOY_RIGHTJOY_LEFT

JOY_UP

JOY_DOWN

QSPI_BK1_NCS

USB_OTGFS_OVRCRUSB_OTGFS_PPWR_EN

SWO

SWDIOSWCLK

USART2_TXUSART2_RX

EXT_RESET

PH0PH1

STLK_MCO

JOY_SEL

CODEC_INT

LCD_TE

LCD_BLCTRL

PC0

PC2

PD12

PC1

PC3

PD13

PE6

PE4

PE2

PE0PE1

PE5

PE3

PD6

PA4

PA6

PA2PA1

PA7

PA5

PA3

PA14

PA10PA8

PA13

PA15

PB10

PB12

PB14

PB11

PB13

PB15

PB8

PB6

PB4

PB7

PB5

PB3

PB9

PC4PC5

PC14

PC6

PC15

PC7

PB1PB0

PF2PF3

PF10PF11

PF13PG2

PG9PG10PG11PG12PG13PG14

I2C2_SDAI2C2_SCL

USB_OTGFS_DP

PC13

BOOT0

DFSDM_DATIN3

I2C1_SCLI2C1_SDA

CODEC_I2S3_WSCODEC_I2S3_SCK

CODEC_I2S3_SD

CODEC_I2S3_MCKCODEC_I2S3ext_SD

CTP_INT

ARD_D3

CTP_RST

ARD_D5ARD_D4

ARD_A0

ARD_D2ARD_D1ARD_D0

ARD_D8ARD_D7

ARD_A1ARD_A2ARD_A3ARD_A4

ARD_D12ARD_D13

ARD_D11ARD_D10

ARD_A5

ARD_D15ARD_D14

ARD_D9

ARD_D6

PC9

U_MCU2MCU2.SchDoc

PC0

PC2

PA4

PA6

PC4

PB0

PB10

PB12

PB14

PD12

PC1

PC3

PA1

PA7

PC5

PB1

PA5

PB11

PB13

PB15

PD13

PH1

PC15

PC13

PE1

PB7

PB5

PB3

PE5

PE3

PB9

PD6

PA13

PA15

PC7

PH0

PC14

PE6

PE4

PE2

PE0

PB8

PB6

PA14

PA10PA8

PB4

PC6

PA2PA3

PF2PF3

PF10PF11

PF13PG2


SPKOUTRNSPKOUTRPBOOT0

NRST

PC9

U_Extension_connectorsExtension_connectors.SchDoc

CODEC_INT

DFSDM_DATIN0

DFSDM_CKOUT

SPKOUTRNSPKOUTRP

DFSDM_DATIN3

CODEC_I2S3_SCKCODEC_I2S3_WSCODEC_I2S3_SD

I2C1_SCL

CODEC_I2S3_MCK

I2C1_SDA

CODEC_I2S3ext_SD

U_AudioAudio.SchDoc

NRST ARD_A0ARD_A1ARD_A2ARD_A3ARD_A4ARD_A5

ARD_D5ARD_D4ARD_D3ARD_D2ARD_D1ARD_D0


ARD_D6ARD_D7

ARD_D15ARD_D14

U_Arduino_ ConnectorsArduino_ Connectors.SchDoc

LCD_RESETA0

FMC_NWEFMC_NOEFMC_NE1

LCD_TE

LCD_BLCTRL

LCD_D[0..15]

I2C1_SDAI2C1_SCL

CTP_INTCTP_RST

U_LCDLCD.SchDoc

uSD_CLKuSD_CMD

uSD_D0uSD_D1uSD_D2uSD_D3

uSD_Detect

EXT_RESET

LED1LED2LED3LED4

NRST

I2C2_SDAI2C2_SCL

JOY_SELJOY_DOWNJOY_LEFT

JOY_RIGHTJOY_UP

U_PeripheralsPeripherals.SchDoc

QSPI_BK1_IO0

QSPI_BK1_IO2QSPI_BK1_IO1

QSPI_BK1_IO3QSPI_CLK

QSPI_BK1_NCS

U_QSPIQSPI.SchDoc

USB_OTGFS_VBUSUSB_OTGFS_DMUSB_OTGFS_DP

USB_OTGFS_ID

USB_OTGFS_OVRCRUSB_OTGFS_PPWR_EN

U_USB_OTG_FSUSB_OTG_FS.SchDoc

U_PowerPower.SchDoc

STLK_MCO

NRSTSWCLKSWDIO

SWOUSART2_TXUSART2_RX

U_ST_LINK_V2-1_2ST_LINK_V2-1_2.SCHDOC

iFMCMatched Net Lengths [Tolerance = 200mil]

Impedance Constraint [Min = 40.00 Max = 60.00 ]i

FMC

iFMC

iFMC

iFMC

iFMC

iQSPI

Matched Net Lengths [Tolerance = 100mil]

iQSPI

iQSPI

iQSPI

iQSPI

iQSPI

Note: Text in italic placed on a wire is not the net name. It just helps to identify rapidly MCU IO related to this wire.

rev D-01 modifications:

Silkscreen:- update revision of board to D top side and bottom side.- name of pin32 of connector P1 is NC- bottom side update the LCD reference: LCD ref: FRD154BP2902-CTP

Schematic:- R69-2 connected to VDD- updated CTP connector CN14: pin8 is now IOVCC- added SB44, SB45, C87 connected to CN14 pin8- remove ZZ2 because LCD and CTP are now same part- updated reference of LCD ZZ1: FRD154BP2902-CTP ( now LCD+CTP) - added comment: CTP working with VDD_MCU from 1.8 to 3.6V- added R105 100K to insure CTP INT is low at power-on.- removed R11- pin26 of U6 STLINK, corrected name of power +3V3_ST_LINK- SB32 set: open by default

rev D-02 modifications:- connected CN7 pin2 to PF5- added two pull-up resistors to Reset of CTP one to VDD, second one to +3V3. Not populated.

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Figure 14. 32F412GDISCOVERY MCU

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MCU

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6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A3 Revision:


PA4PA5PA6PA7

PA10

PA0PA1

PA15

PA3

PA13PA14

PA2

PA8

PB5

PB7

PB14PB15

PB10

PB8PB9

PB1PB2PB3

PB0

PB4

PB11PB12PB13

PC0

PC2PC3PC4PC5PC6PC7PC8PC9PC10PC11PC12PC13

I2C1_SCLI2C1_SDA

uSD_D0uSD_D1uSD_D2uSD_D3

uSD_CLK

C23

1.5pF

C30

1.5pF

R54

0

R56

0

C21 8.2pF

C19 8.2pF

R46

[N/A]

PH0-OSC_INPH1-OSC_OUT

PD0PD1

PD2PD3PD4PD5PD6PD7

PD8PD9PD10

PD12PD13

PD14PD15

D2D3

D13D14D15

D0D1

uSD_CMD

PE0

PE14PE15

PE9PE8

PE11PE10

PE12PE13

PE1

PE3PE4PE5

PE7

PF0

PF14PF15

PF9PF8

PF11PF10

PF12PF13

PF2PF3PF4PF5PF6PF7

D4D5D6D7D8D9D10D11D12

A0

D[0..15]

A0

D[0..15]

A0

NRST

NRST

BOOT0

VDD_MCU

VDDA

VREF+

L1

BEAD

VDD_MCU

C82.2uF

C312.2uF

Ceramic capacitor (Low ESR)

C58100nF

C76100nF

C59100nF

C151uF

C17100nF

C101uF

C11100nF

VDD_MCU

C60100nF

C20100nF

C75100nF

C74100nF

C73100nF

VDD_MCU

C57100nF

C68100nF

C71100nF

VDD_MCU

C94.7uF

VDD

PA0 - WKUP1

PA6

PA7

PA8- MCO1

PC1

PC2

PC3

PC4

PC5

PC8

R68

510

X3NDK NX3215SA-32.768KHZ-EXS00A-MU00525

VDD_USB33

PE2

PE6

ARDUINO USART6_TX

ARDUINO USART6_RX

R69

[N/A]

QSPI_BK1_IO3

FMC_NOEFMC_NWE

LED3

ARD_D5

ARD_D4

ARD_A0

ARD_D2ARD_D1

ARD_D0ARD_D8ARD_D7

ARD_A1

ARD_A2

ARD_A3

ARD_A4

CODEC_I2S3_WS

R66 1K2R67 1K2VDD

PA1

PA2

PA4

PC9PC10PC11PC12

SB31Closed by default

VDD

LED4

PC13PC13-ANTI_TAMP 7

PC0 26

PC1 27

PC2 28

PC3 29

PA0-WKUP34

PA135

PA236

PA337

PA440

PA541

PA642

PA743

PC4 44

PC5 45

PB046

PB147

PB248

PB1069

PB1170

PB1273

PB1374

PB1475

PB1576

PC6 96

PC7 97

PC8 98

PC9 99PA8100

PA9101

PA10102

PA11103

PA12104

PA13105

PA14109

PA15110

PC10 111

PC11 112

PC12 113

PB3133

PB4134

PB5135

PB6136

PB7137

PB8139

PB9140

PC14-OSC32_IN 8

PC15-OSC32_OUT 9

PH0-OSC_IN23

PH1-OSC_OUT24

NRST25

BOOT0138 PDR_ON 143

U7A

STM32F412ZGT6U

QSPI_BK1_IO2QSPI_BK1_IO0QSPI_BK1_IO1

ARD_D12

ARD_D13 PA5

ARD_D11

uSD_Detect

USB_OTGFS_VBUS

PA9

USB_OTGFS_ID

PA11PA12

USB_OTGFS_DM

USB_OTGFS_DP

ARD_D10

ARD_A5DFSDM_DATIN0QSPI_CLK

CODEC_I2S3_SCK

CODEC_I2S3_SD PB6

ARD_D15

ARD_D14

PA9

PA10

PA11

PA12

PA15

PB0

VBAT 6

VSSA 31VREF+32

VSS_2_0 107

VCAP2_0 106

VDD_439 VDD_3144

VSS_11 130

VDD_2_USB3395

VCAP1_0 71

VSS_10 120

VDD_517

VDDA33

VDD_1_072

VDD_2_0108

VDD_1230

VDD_11131

VDD_10121

VSS_4 38

VDD_652

VDD_762

VDD_884

VSS_5 16

VSS_6 51

VSS_7 61

VSS_8 83

VSS_9 94

U7C

STM32F412ZGT6U

PC0 / WKUP2

DFSDM_CKOUT

CODEC_I2S3_MCK

FMC_NE1

LCD_RESET

LED1LED2

JOY_RIGHTJOY_LEFT

PE21

PE32

PE43

PE54

PE65

PF0 10

PF1 11

PE758

PE859

PE960

PE1063

PE1164

PE1265

PE1366

PE1467

PE1568

PF2 12

PF3 13

PF4 14

PF5 15

PF6 18

PF7 19

PF8 20

PF9 21

PF10 22

PF11 49

PF12 50

PF13 53

PF14 54

PF15 55

PE0141

PE1142

PD877

PD978

PD1079

PD1180

PD1281

PD1382

PD1485

PD1586

PD0114

PD1115

PD2116

PD3117

PD4118

PD5119

PD6122

PD7123

PG0 56

PG1 57

PG2 87

PG3 88

PG4 89

PG5 90

PG6 91

PG7 92

PG8 93

PG9 124

PG10 125

PG11 126

PG12 127

PG13 128

PG14 129

PG15 132

U7B

STM32F412ZGT6U

JOY_UPJOY_DOWN

PG0PG1PG2

QSPI_BK1_NCSUSB_OTGFS_OVRCRUSB_OTGFS_PPWR_EN

I2C2_SCL

I2C2_SDA

SWO

SWDIO

SWCLK

PA13

PA14

USART2_TX

PA3USART2_RX

ARD_D9

EXT_RESET

2_CKIN

2_CKIN

R45

[N/A]

SB22Open by defaultPH0

PH1

STLK_MCO

C261uF

C22100nF

One 100nF placed close to each VDD_x pin of MCU

JOY_SEL

PC7

CODEC_I2S3ext_SD

CODEC_INT

PD11

BOOT0

LCD_TE

PG3

LCD_BLCTRL

CTP_INT

PC2

PD12

PC1

PC3

PD13

PE6

PE4

PE2

PE0PE1

PE5

PE3

PD6

PB10

PB12

PB14

PB11

PB13

PB15

PB8

PB6

PB4

PB7

PB5

PB3

PB9

PB5

PB7

PB14PB15

PB10

PB8PB9

PB3PB4

PB11PB12PB13

PB6

PC4

PC5

PC14

PC6

PC15

PC7

SB25Open by default

SB23Open by default

close to MCU

close to MCU

PE0PE1

PE3

PE5

PE2

PE6

PB1 PB1PB0 PB0

PF2PF3

PF10

PG2

PG10PG11PG12PG13PG14

PF11

PG9

PF2PF3

PF10PF11

PG2


PG4

PG10PG11PG12PG13PG14

PG9

PG6PG7PG8

PG15

PG5

PF1

12

X2

NX3225GD-8.00M

R71100K

PDR ON by default

I2C2_SDA

I2C2_SCL

1 23 45 67 89 1011 1213 1415 1617 1819 2021 2223 2425 26

CN7

[N/A]

D0 D1D2D3

D4 D5D6 D7

D9D10 D11D12

D8

D13D14 D15

LCD_TE LCD_RESET

A0FMC_NWE

FMC_NOEFMC_NE1 GND

+3V3VDD

LCD_TE

LCD_RESET

FMC_NWEFMC_NOE

FMC_NE1

LCD signals access (2.54mm pitch)

PC14

PC15

ARD_D6

SB26

Closed by default

DFSDM_DATIN3

VDD_MCU

R9156

PC1

SB34

Closed by default

SB35Open by default

SB27

Open by defaultVDD_MCU

SB20

Closed by default

Not Fitted

Not Fitted

Not Fitted

SB29Open by default

PF13 PF13

PC0

ARD_D3

CTP_RST

R31 1K2R70 1K2

PA10

PA14PA13

PA15

PA8

PA6

PA4

PA7

PA5

PA3

PA5

PA7

PA10

PA8

PA3PA4

PA13PA14PA15

PA6

PA1 PA1

PA2 PA2

SB16

Closed by default

SB15

Open by default

PC9SB43Open by default

VDD

PF5LCD_BLCTRL

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Figure 15. 32F412GDISCOVERY Power

3 11

Power

MB1209 D-02

6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A4 Revision:


E5V

+5V1 2

PWR

LD6Green

C310uF

C2100nF

+5V +3V3

E5V

U5V_ST_LINK

Vin3 Vout 2

1

Tab 4

U16LD1117STR

C5510uF

+2V+3V3

VDD_MCU

R9

820

VIN

C710uF(25V)

C410uF

Vin3 Vout 2

1

Tab 4

U3LD1117S50TR

Arduino power pin

U5V

1 23 45 6

JP3

Header 3X2

C610uF

GND

JP2

SB4

Closed by default

Open solder bridge if Discovery is suppliedfrom +3V3 of extension connector 3

21

JP5

VDD_USB33

32

1

JP6

+3V3

Vin3 Vout 2

1

Tab 4

U2LD1117S33TR

Jumper to measure IDD of the MCU

1 2

JP7

VDD

VDD= supply of peripheralsVDD_MCU= supply of MCU pins VDD only

GND

JP8

GND

JP9

GND

JP1

VDD_MCU IDD

VDD_USB

Voltage selection VDD_USB source selection

R92

68

R90

120

C8410uF

VOUT = VREF (1 + R92 / R90)

VOUT = +2V +/- 50mV using R90=120ohms and R92=68ohms and 5% tol

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Figure 16. 32F412GDISCOVERY LCD

4 11

LCD

MB1209 D-02

6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A3 Revision:


PD5PD4PD7

VLED- 41

AVDD 37

VDDREG 34

GVSS 40

PVDD 38

P685

IM1 27

IM0 28

GND 44

DCX 29

D021 GND22

WRX 30

VCS4

VLED+ 43

RDX 31

CSX 32

D147

VDDIO 33

D138

D120

D156

D615

D714

D813

D912

D1011

D1110

D129 VCC 35

VREF 36

MTP 39

NC 42

D219

D318

D417

D516

GND 23

VSYNC 24

TE 25

RESETB 26

TCOM2

GND1

GVDD3

CN8

MOLEX 503304-4440

PF0

VDD

+3V3

LCD_BLCTRL

LCD_TELCD_RESET

A0FMC_NWEFMC_NOEFMC_NE1

C72100nF

C70100nF

D0D1D2D3D4D5D6D7D8D9D10D11D12D13D14D15

IM1IM0

P68

R57

0IM1

R55

0IM0

R84

0P68

VDD

Z1

STPS1L40M

C774.7uF/50V

L5

4.7uH(1A)

R4310

BLGND

R47100K

C814.7uF/10V

BLGND

BLGND

BLGND Vi1

Rset 2GND3 FB 4

NC 5Vo 6

EN7

SW8

PGND9

U17

STLD40DPUR

C7810nF

C85100nF

L3

BEAD C7910nF

VL

Backlight driver & PFC connector for LCD panel

BLGND

+5V

C8210uF

L4

BEAD

C83100nF

L6

BEAD

D8D7 D6D5 D4D3 D2D1 D0

LCD_RESET

LEDALEDK

FMC_NE1A0FMC_NWEFMC_NOE

VDD +3V3

Common mode supply filter

LEDA

LEDK

Backlight control: ON/OFF or dimmer by low frequency (1 to 10kHz typ.) PWM using TIM5_CH3PF5

LEDA

LEDK

current regulated at 15mA

L2

BEAD

Layout: parts close to STLD40D and grouped in same area with BLGND as local ground plane

Reserved use

R52[N/A]

BLGND

L7

BEADR50100K

+3V3

+3V3

C80100nF

I2C1_SCLI2C1_SCL_CTP

I2C1_SDAI2C1_SDA_CTP

I2C max clock: 400kHz

SB36Open by default

SB39Open by default

VDD

I2C1_SCLI2C1_SCL_CTP

I2C1_SDAI2C1_SDA_CTP

2

13

G

SD

TR1BSN20BK

2

13

G

SD

TR2BSN20BK

I2C Level shifter option

lower voltage sidehigher voltage side (MCU )(CTP)

SB38

Closed by default

SB17

Closed by default

SB37Open by default

SB40Open by default

PB7

PB6

I2C1_SDA

I2C1_SCL

CTP_INT

CTP_RST

PG5

PF12

R98100K

Pull-down to insure CTP is in Reset at power-on

GND1 FMARK 2

DB153 DB14 4

DB135 DB12 6

DB117 DB10 8

DB99 DB8 10

DB711 DB6 12

DB513 DB4 14

DB315 DB2 16

DB117 DB0 18

/RD19 /WR 20

RS21 /CS 22

RESET23 IM 24

IOVCC25 VCI 26

GND27 LEDA 28

LEDK29

CN15

FH26-29S-0.3SHW

D9D10D11D12D13D14D15

Top side: layout of CN15

1

29

FRD154BP2902-CTP

FPC

CN15

ZZ1

FRD154BP2902-CTP

LCD_D[0..15] D[0..15]

LCD_TEPG4LCD_TE

LCD_RESET PD11

R41100K

VDD

FMC_NE1PD7

R99100K

VDD

FMC_NWEPD5FMC_NOE PD4

A0 PF0

PD14PD15PD0PD1PE7PE8PE9PE10PE11PE12PE13PE14PE15PD8PD9PD10

PG4PD11

240x240 pixels TFT LCD with Capaticitve Touch Panel

pixel (0,0) * X

Y

*: standard orientation. Rotations by 90, 180, 270 degrees possible by registers.

L8

BEAD+3V3 Not Fitted

R87[N/A]R65

[N/A]

+3V3

VDD

SB41Open by default

SB41 open and SB42 closed = IM high: LCD in 16bits modeSB41 closed and SB42 opened = IMlow : LCD in 8bits mode

SB42

Closed by

default

LCD Operation: MCU operating voltage range 1.65 to 3.6V

not fitted

not fitted

(TR1, TR2, R65, R87 parts are not soldered)

SB45

Open by

default

SB44

Closed by

default

VDD

GND10

VDD9

IOVCC8

RESET7

GND6

GND 1

INT 2

GND 3

SDA 4

SCL 5

CN14

DF37NB-10DS-0.4V (5x)

C87

100nF

Capacitive Touch Panel connector of FRD154BP2902-CTP

CTP operation: MCU operating voltage range 1.8 to 3.6V

Pull-down to insure CTP is in Reset at power-on

R105

100K

LCD+Touch FRIDA

R106

[N/A]R107

[N/A]

+3V3

VDD

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Figure 17. 32F412GDISCOVERY Quad-SPI

5 11

QSPI

MB1209 D-02

6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A4 Revision:


QSPI_BK1_IO0

QSPI_BK1_IO2

QSPI_BK1_IO1 PF9

PF7

PF6

PB2

PG6

PF8

QSPI_BK1_IO3

VDD

QSPI_CLK

QSPI_BK1_NCS

R7210K

DQ3/HOLD#7

VCC 8S#1

DQ12

C6

DQ05

VSS 4DQ2/Vpp/W#3

DQ3/HOLD#

VCCS#

DQ1

C

DQ0

VSSDQ2/Vpp/W#

U12

MICRON N25Q128A13EF840F

QSPI_BK1_IO0

QSPI_BK1_IO1

QSPI_BK1_IO2

QSPI_BK1_IO3

QSPI_BK1_NCS

QSPI_CLK

Exposed central pad should not be connected to any voltage on PCB

VDD

C37100nF

QSPI_CLKTP3

QSPI_BK1_IO0TP2

QSPI_BK1_IO1TP1

R100 [N/A]

R104 [N/A]

VDD

R100 and R104:pull-up and pull-down to set PB2 in BOOT1 alternate function

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Figure 18. 32F412GDISCOVERY Audio

7 11

Audio

MB1209 D-02

6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A3 Revision:


CODEC_I2S3_SCK

ADCDAT1F2

ADCLRCLK1/GPIO1G3

AGND D6

CPVDDG9

CPVOUTN H7

CPVOUTP G7

CS/ADDR G2

DACDAT1E4

CPGND H9

DCVDDF1

DBVDDD2 DGND E2

CPCB H8

AVDD1D9

BCLK1G1

CIFMODE A4

CPCA G8

DMICCLKC6

AGND E7

AGND E8

AVDD2D8

GPIO2/MCLK2 E1

GPIO3/BCLK2H2

GPIO4/LRCLK2F4

GPIO5/DACDAT2H3

GPIO6/ADCLRCLK2G4 GPIO7/ADCDAT2E5

GPIO8/DACDAT3H4

GPIO9/ADCDAT3F5

GPIO10/LRCLK3H5 GPIO11/BCLK3F6

HP2GND F7

HPOUT1FB G5

HPOUT1L H6HPOUT1R G6

HPOUT2N F9

HPOUT2P F8

IN1LND7 IN1LPC8

IN1RNB7 IN1RPC7

IN2LN/DMICDAT1B9 IN2LP/VRXNB8

IN2RN/DMICDAT2A9 IN2RP/VRXPA8

LDO1ENAD4

LDO1VDDE9

LDO2ENAD5

LDO2VDDD1

LINEOUT1N C5

LINEOUT1P B5

LINEOUT2N C4

LINEOUT2P B4

LINEOUTFB A6

LRCLK1E3

MCLK1 D3

MICBIAS1 A7

MICBIAS2 B6

REFGND A5

SCLK H1SDA F3

SPKGND1 A1

SPKGND2 C1

SPKMODE A3

SPKOUTLN B1

SPKOUTLP A2

SPKOUTRN C3

SPKOUTRP B3

SPKVDD1B2

SPKVDD2C2

VMIDC C9

VREFCE6

U15

WM8994ECS/R

C43

100n

F

C44

100n

F

VDD

+1V8

VDD

CODEC_I2S3_WSCODEC_I2S3_SD

CODEC_INT

I2C1_SCL

PB7PB6

CODEC_I2S3_MCKPC7

C52

100n

F

C53

100n

F

R7920

R8020

C47 2.2uF

C46 2.2uF

C51 2.2uF

GND5 DOUT 4CLK 3VDD1 LR 2U4

MP34DT01TR

GND5 DOUT 4CLK 3VDD1 LR 2U5

MP34DT01TR

VDD

C13

100n

F

PB1

+3V3

C64

100n

F

+1V8

+3V3

+1V8

C63

100n

F

C12

100n

F

R97 [N/A] VDD

R82 10K

R38 10K

C45 1uF

C66

1uF

C65

1uF

C54

4.7u

F

C42

4.7u

F

C41

4.7u

F

C404.7uF

C484.7uF

PC2

I2C1_SDA

DFSDM_DATIN0

DFSDM_CKOUT

R940

R88 0R93 0R95 0

R86 0

Operating range: 1.62<VDD<3.6V

2

6

4

3 CN9

PJ3028B-3

R63

0GND

GNDGND

GND

21mm distance between a pair of microphones

R78

2K2

C39

1uF

CODEC_I2S3ext_SD R96 0

R7710K

C50

100n

F

C49

100n

F

SB33

Closed by default

PB12PA4PB5PB4PG2

SPKOUTRNSPKOUTRP

DOUT

1

L/R 2DOUT

L/R

GND

3

CLK4

VDD

5 U14

MP23DB01MM

DOUT

1

L/R 2DOUT

L/R

GND

3

CLK4

VDD

5 U13

MP23DB01MM

DFSDM_DATIN3PE4

Open this solder bridge if PE4 is used externally at the Extension connector

Not Fitted Not Fitted

51

2

GND3

4

BYPASSINH

Vin Vout

U18

LD3985M18R

+1V8

C3310nF

+3V3

SB32

Open by default

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Figure 19. 32F412GDISCOVERY Peripherals

6 11

Peripherals

MB1209 D-02

6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A4 Revision:


MICRO SD

uSD_CLKuSD_CMD

SMS064FF or SMS128FF

1 2 3 4 5 6 7 8SW

29

SW1

10

CN13PJS008-2000

uSD_D0uSD_D1

uSD_D2uSD_D3

uSD_DetectR640

PC8PC9

PC10PC11

PC12PD2

(TF) Card R11947K

R11547K

R11347K

R11847K

R11747K

Reset Button

1 23 45 67 8

CN10

F206A-2*04MGF-A

PB9PB10 EXT_RESETPF11

SSM-104-L-DH (Samtec)

I2C Extension Connector

1 2

LD3Red

1 2

LD2Orange

1 2

LD4Blue

1 2

LD1Green+3V3

R5510

R4680

R3680

R2680

LEDs

LED1

LED2

LED3

LED4

143 2

B1TD-0341 [RESET/Black]C1

100nF

R8100K

NRST

PE0


PE1

PE2

PE3

The 4 LEDs are top side

PD3

I2C2_SDAI2C2_SCL

R24[N/A]

R28[N/A]

R22[N/A]

R26[N/A]

R30[N/A]

VDDR23

100

JOY_SELJOY_DOWNJOY_LEFT

JOY_RIGHTJOY_UP

JOYSTICK

PF14PF15

PG0

PG1

VDDVDD

VDD

VDD

PA0 - WKUP1

Right side

Left side

COMMON 5

Selection 2

DOWN 3

LEFT 1

RIGHT 4

UP 6

B2

MT008-A

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Figure 20. 32F412GDISCOVERY USB OTG FS

8 11

USB_OTG_FS

MB1209 D-02

6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A3 Revision:


+5V

+3V3

R13 0

VBUS1

DM2

DP3

ID4

GND5

Shield6

USB

_Micro-A

B re

ceptacle

Shield7

Shield8

Shield9

EXP10

CN3

475900001

PA9

PA10

PA11PA12

R76 0R75 0

DzA2

ID A3

Pd1 B1

PupB2

VbusB3

D+in C1

Pd2 C2

D+outC3

D-in D1

GND D2

D-outD3

D1

EMIF02-USB03F2

12

LD7Green

PG8

R1747K

USB_OTGFS_VBUS

VBUS OK

U5V

USB_OTGFS_DMUSB_OTGFS_DPUSB_OTGFS_ID

USB_OTGFS_OVRCRPG7

USB_OTGFS_PPWR_EN

MIC

ROAB_N

MIC

ROAB_P

R210

12

LD8Red

R18620

C5

4.7uF

R14

47K

R12330

+3V3

transistor pins numbers follow SOT23 JEDEC standard,

USB Full Speed operating range voltage: 3.0V<VDDUSB<3.6V

R1010K

R20 0

GND2

IN5

EN4 OUT 1FAULT 3U1

STMPS2141STR

R1647K

Open Drain

3

1

2

T19013-SOT23

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Figure 21. 32F412GDISCOVERY extension connectors

9 11

Extension connectors

MB1209 D-02

6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A4 Revision:


NRST VDD_MCU1 23 45 67 89 1011 1213 1415 1617 1819 2021 2223 2425 2627 2829 3031 3233 3435 3637 3839 4041 4243 4445 4647 4849 50

P1

Header 25X2

1 23 45 67 89 1011 1213 1415 1617 1819 2021 2223 2425 2627 2829 3031 3233 3435 3637 3839 4041 4243 4445 4647 4849 50

P2

Header 25X2

PE5PE6

PA1

PA5PA6PA7

PA8

PA15

PB1

PB8 PB9

PB10

PB13 PB14PB15

PB0

PC1PC3

PC4PC5

PC14 PC15

PC0

PD6

PD12PD13

PH1PH0

VDD_MCU

VDD_MCU

+3V3+3V3

PB11

MCO_1

PE2 PE3PE4

PC13

PA4

PB12

PC6 PC7

PA10 PA13PA14

PB3PB5PB7

PB4PB6

PE0 PE1

SPI4_MISO/SPI5_MISO/TIM9_CH1SPI4_MOSI/I2S4_SD/SPI5_MOSI/I2S5_SD/TIM9_CH2

I2C2_SMBATIM5_CH1

SPI_2_MOSI/I2S2_SD/I2C_4_SCL/TIM_1_CH3N/TIM8_CH3N/TIM12_CH2/RTC_50Hz

I2C4_SMBA/USART3_RX/ADC1_15

TIM5_CH4

SPI2_MOSI/I2S2_SD/ADC1_13ADC1_11/WKUP3

SPI4_MOSI/I2S4_SD/USART2_RTS/ADC1_1/TIM2_CH2/TIM5_CH2

ADC1_10/WKUP2

USART3_RTS/TIM4_CH1/I2C4_SCL

DFSDM_clocking/I2S2_CKIN/I2C2_SDASPI2_SCK/I2S2_CK/I2S3_MCK/I2C2_SCL/I2C4_SCL/USART3_TX/TIM2_CH3

SPI_2_MISO//I2S2ext_SD/I2C_4_SDA/USART_3_RTS/TIM_1_CH2N_8_CH2N_12_CH1SPI2_SCK/I2S2_CK/SPI4_SCK/I2S4_CK/USART3_CTS/CAN2_TX/TIM1_CH1N

SPI5_NSS/I2S5_WS/ADC1_9/TIM1_CH3N/TIM3_CH4TIM/8_CH3N/DFSDM_DATIN0

I2C4_SDA/TIM4_CH2

SPI5_MOSI/I2S5_SD/I2C1_SCL/I2C3_SDA/CAN1_RX/TIM4_CH3/TIM10_CH1

SPI3_MOSI/3_SD/USART2_RX

SPI1_NSS/1_WS/USART1_TX/TIM2_CH1/2_ETR

I2S2_MCK/I2C4_SCL/USART6_TX/TIM3_CH1/TIM8_CH1

I2S1_MCK/ADC1_14

SPI2_NSS/I2S2_WS/I2C1_SDA/I2C2_SDA/CAN1_TX/TIM4_CH4/TIM11_CH1BOOT0

SPI1_MOSI/I2S1_SD/ADC1_7/TIM1_CH1N/TIM3_CH2/TIM8_CH1N/TIM14_CH1 SPI1_MISO//ADC1_6/TIM3_CH1/TIM13_CH1SPI1_NSS/I2S1_WS/SPI3_NSS/I2S3_WS/ADC1_4SPI1_SCK/I2S1_CK/ADC1_5/TIM2_CH1/2_ETR/TIM8_CH1N

SPI5_SCK/I2S5_CK/ADC1_8/TIM1_CH2N/TIM3_CH3/TIM8_CH2N

TAMP1

USART6_RX

CAN2_RXUSART6_RTS/CAN2_TX USART6_CTS

USART6_TX

Alternate functions available:

SPI1, SPI2, SPI4I2C1, I2C2 with SMBA , I2C4 FM+ 1MHz with SMBAUSART3 Rx,Tx,Cts,Rts, USART6 Rx,Tx,Cts,RtsCAN1, CAN214 ADC inputs>15 Timer channelsI2S2 full duplex with SD and extSDDFSDM input for stereo PDM microphones

*

**

****

***********

************

***

** *

*

*

*

***

****

*****

*****

*****

***

*

*

(right side)

(left side)

shared with LED3 shared with LED4

shared with LSE crystal shared with LSE crystalshared with HSE crystal

AAA

A

CAAAAAAD

PC2*D SPI2_MISO/I2Sext_SD/DFSDM-CKOUT/ADC1_12

shared with EXT_RESET

AD C

C

C

Dshared with USB_OTGFS_ID JTMS-SWDIOJTCK-SWCLK A

A

A

A AA AA

JTDO-SWO

C CC C

A Ashared with LED1 shared with LED2

NRSTPC0PC2

PA4PA6PC4PB0

PB10PB12PB14

PD12

PC1PC3PA1

PA7PC5PB1

PA5

PB11PB13PB15

PD13

PH1PC15PC13

PE1

PB7PB5PB3

PE5PE3

PB9

PD6

PA13PA15

PC7

PH0PC14PE6PE4PE2PE0PB8

BOOT0PB6

PA14PA10PA8

PB4

PC6

PA2PA3 ** I2S2_CKIN/USART2_TX/ADC1_2/TIM2_CH3/TIM5_CH3/TIM9_CH1I2S2_MCK/USART2_RX/ADC1_3/TIM2_CH4/TIM5_CH4/TIM9_CH2

SPI2_NSS/I2S2_WS/SPI3_SCK/I2S3_CK/SPI4_NSS/I2S4_WS/I2C2_SMBA/USART2_RX

PA2PA3

* : pin compatible with STM32F401-DISCO and STM32F411-DISCOA : shared with Arduino connectorsC : shared with CODECD : shared with Digital microphones

PF2PF3PF10 PF11

PG2PG9

PG10 PG11PG12 PG13PG14 SPKOUTRN

SPKOUTRP

PF2PF3PF10 PF11

PG2PG9

PG10 PG11PG12 PG13PG14 SPKOUTRN

SPKOUTRP

+5V+5V

Not Fitted

Not Fitted

PF13PF13 I2C4_SMBA

V : shared with Virtual Com Port

VV

T : shared with Capacitive Touch Panel

I2C1_SCL shared with Codec and CTP I2C1_SDA shared with Codec and CTPT T

PC9 MCO_2/I2S2_CKIN/I2C3_SDA /TIM3_CH4 /TIM8_CH4*S

S : shared with MicroSD

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Figure 22. 32F412GDISCOVERY Arduino Uno V3 connector

10 11

Arduino Uno connector

MB1209 D-02

6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A4 Revision:


Arduino uno connector

+3V3+5V

A0A1A2A3A4A5

RX/D0TX/D1

D2

D4PWM/D3

PWM/D5PWM/D6

D7

D8PWM/D9

PWM/CS/D10

SDA/D14SCL/D15 PB10

PB9

NRST

VIN

NRSTSCK/D13

MISO/D12PWM/MOSI/D11

12

LD9

Green

R73510

AVDDGND

VREF+

C38[N/A]

R74

0

ARD_A0ARD_A1ARD_A2ARD_A3

ARD_A4

ARD_A5



ARD_D6ARD_D7

ARD_D15

ARD_D14

PA1PC1PC3PC4

PC5

PB0

PG9PG14PG13

PG12PF10PF3PG11

PG10PB8PA15PA7PA6PA5

ADC1_IN8

ADC1_IN15

ADC1_IN14ADC1_IN13ADC1_IN11ADC1_IN1

I2C2_SDA PB9

PB10I2C2_SCL

USART6_RXUSART6_TX

TIM5_CH2

TIM5_CH4

TIM4_CH3TIM2_CH1, SPI1_NSSTIM3_CH2, SPI1_MOSISPI1_MISOSPI1_SCK

SB5Open by default


SB8Closed by defaultSB7Open by default


IOREFNRST3V35VGNDGNDVIN

POWER

AIN

I2C2_SCL

I2C2_SDA

123456789

10

CN12

Header 10X1_Female

12345678

CN2

Header 8X1_Female

123456

CN1

Header 6X1_Female 12345678

CN11

Header 8X1_Female

TIM5_CH1

PF4

Sc

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Figure 23. 32F412GDISCOVERY ST-LINK/V2-1

11 11

ST-LINK/V2-1

MB1209 D-02

6/29/2016

Title:

Size: Reference:

Date: Sheet: of

A4 Revision:


STM_RST

T_JT

CK

T_JTCK

T_JT

DO

T_JT

DI

T_JTMS

OSC_INOSC_OUT

T_NRST

AIN_1

USB ST-LINK

COM

Board Ident: PC13=0

T_SWDIO_IN

LED_STLINKMCO

STLINK_R

X

STLINK_T

X

T_SWO

R85 1K5R40 0R39 0

R37[N/A]

R44100K

R3610K

R103 4K7

R102 4K7

C1410pF

C1610pF

C18100nF

USB_RENUMn

USB_R

ENUMn

+3V3_ST_LINK

+3V3_ST_LINK

+3V3_ST_LINK

PWR_E

XT

D4

BAT60JFILMC24

1uF

C8610nF

C341uF

51

2

GND3

4

BYPASSINH

Vin Vout

U9 LD3985M33R

C25100nF

C35100nF

+3V3_ST_LINK

R42

10K

R8136K

R83100

+3V3_ST_LINK

E5V

R48100K

D6

BAT60JFILM

Power Switch to supply +5V from STLINK USB

PWR_ENn

C56100nF

C61100nF

C62100nF

C67100nF

+3V3_ST_LINK

3

1

2

T2

9013-SOT23

VUSB_ST_LINK

VUSB_ST_LINK

VUSB_ST_LINK

VDD

LED_STLINK

R1100

R7100

R60+3V3_ST_LINK

STM_JTMS

STM

_JTC

K

D5

BAT60JFILM

T_JR

ST

STL_USB_DMSTL_USB_DP

STL_USB_DMSTL_USB_DP

R32

100K

R34

2K7

R33

4K7+5V

CUR_S

EL

IN1

IN2

ON3 GND 4

SET 5

OUT 6

OUT 7

FAULT8

U8

ST890CDR

VUSB_ST_LINK U5V_ST_LINK

R51

10K

R62

2K7

C32100nF

D3BAT60JFILM

+3V3_ST_LINK

VBAT1

PC132

PC143

PC154

OSC_IN5

OSC_OUT6

/RST7

VSSA8

VDDA9

PA010

PA111

U2_TX12

U2_

RX

13

U2_

CK

14

S1_C

K15

S1_M

ISO

16

S1_M

OSI

17

PB0

18

PB1

19

PB2/BOOT1

20

PB10

21

VSS

_123

VDD_1

24

PB12 25

PB11

22

S2_CK 26S2_MISO 27S2_MOSI 28PA8 29PA9 30PA10 31PA11 32PA12 33JTMS 34VSS_2 35VDD_2 36

JTCK

37JT

DI

38JT

DO

39JN

RST

40PB

541

PB6

42PB

743

BOOT0

44PB

845

PB9

46VSS

_347

VDD_3

48

U6STLINK

U5V

output current limitation : 500mA

SB19

Open by

default

R89 100K

R101 [N/A]

+3V3_ST_LINK

USB Virtual ComPort

Not Fitted

STLK_MCOC69[N/A]

MCO

SB18Open by default

Jumpers ON --> DISCOVERY SelectedJumpers OFF and Solder bridge on T_SWO removed --> ST-LINK Selected

T_JTCK

T_JTMS

SWD to MCU

1 2 3 4

CN5

SB14 SB13

SB11 SB12

SB10 SB9

SB2

Closed by

default

SB3

Open by

default

STM_JTMS

STM_JTCK

SWD

RESE

RVED

DEFAULT

R2522

R1922

TCK/SWCLKTMS/SWDIO

R27

10K

123456

CN4

Header 6

AIN_1

T_NRST

T_SWO

NRST

R1522R11[N/A]


SB28 Closed by default

T_NRSTSWO_MCU

D2

BAT60JFILM

R29

[N/A]

SWCLKPA14

SWDIOPA13

SWOPB3

R35 [N/A]

Red

_Green

21

34

LD5HSMF-A201-A00J1

T_JTDOT_JTMS

C29

100nF

C36

100nF

VccA1

A12

A23

GND4 DIR 5B2 6B1 7VccB 8U11

SN74LVC2T45DCUT

VDD

T_SWO

+3V3_ST_LINK

SWO_MCU


VCCA1

A12

A23

GND4 DIR 5B2 6B1 7VCCB 8U10

SN74LVC2T45DCUT

VDD

VDD

C28100nF

C27100nF

R59100K

R58100K

+3V3_ST_LINK

R610

12

JP4[N/A]

+3V3_ST_LINK

R49

0

USART2_TX

USART2_RX

PA2

PA3

1 2X1

NX3225GD-8.00M

transistor pins numbers follow SOT23 JEDEC standard,

R53

561 2

FAULT

LD10

Red

R60

820

VBUS 1

DM 2

DP 3

ID 4

GND 5

Shield 6

USB

_Micro-B

receptacle

Shield 7

Shield 8

Shield 9

EXP 10

EXP 11

CN6

1050170001

STLINK power supply

Text

To use the Discovery as programmer of an external STM32:

- Insure the STM32 to programm on an external board is supplied with 3.3V ONLY!- Remove the two jumpers on CN5 to left pins 1, 2, 3, 4 open- Connect following pins of CN4 to the STM32 to programm: pin2 to SWCLK, pin3 to GND, pin4 to SWDIO, pin5 to RESET.

+3V3_ST_LINK

DocID029078 Rev 2 45/48

UM2032 Federal Communications Commission (FCC) and Industry Canada (IC) Compliance

47

Appendix B Federal Communications Commission (FCC) and Industry Canada (IC) Compliance Statements

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 15.105

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

B.1.3 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.2 IC Compliance Statement

B.2.1 Compliance Statement

Industry Canada ICES-003 Compliance Label: CAN ICES-3 (A)/NMB-3(A)

B.2.2 Déclaration de conformité

Étiquette de conformité à la NMB-003 d'Industrie Canada : CAN ICES-3 (A)/NMB-3(A)

CISPR32 UM2032

46/48 DocID029078 Rev 2

Appendix C CISPR32

C.1 Warning

Warning: This device is compliant with Class A of CISPR 32. In a residential environment, this equipment may cause radio interference.

DocID029078 Rev 2 47/48

UM2032 Revision history

47

Revision history

Table 15. Document revision history

Date Revision Changes

28-Jul-2016 1 Initial version.

08-Nov-2016 2

Added sections:

Section Appendix B: Federal Communications Commission (FCC) and Industry Canada (IC) Compliance Statements, Section Appendix C: CISPR32.

UM2032

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