STMicroelectronics STM32G081B-EVAL User Manual

UM2403

User manual

Evaluation board with STM32G081RB MCU

Introduction

The STM32G081B-EVAL Evaluation board is a high-end development platform for Arm

Cortex ®

®

-M0+ core-based STM32G081RBT6 microcontroller with USB Type-C™ and Power

Delivery controller interfaces (UCPD) compliant with USB Type-C r1.2 and USB PD specification r3.0, two I2Cs, two SPIs, five USARTs, one LP UART, one 12-bit ADC, two

12-bit DACs, two GP comparators, two LP timers, internal 32KB SRAM and 128KB Flash,

CEC, SWD debugging support.

The full range of hardware features on the STM32G081B-EVAL Evaluation board includes the mother board, the legacy peripheral daughterboard and the USB Type-C and Power

Delivery daughterboard, which help to evaluate all peripherals (USB Type-C connector with

USB PD, motor control connector, RS232, RS485, Audio DAC, microphone ADC, TFT LCD,

IrDA, IR LED, IR receiver, LDR, microSD ™ card, CEC on two HDMI connectors, smartcard slot, RF E2PROM and temperature sensor… etc.) and to develop applications. An ST-

LINK/V2-1 is integrated on the board as embedded in-circuit debugger and programmer for the STM32 MCU

.

The daughterboard and extension connectors provide an easy way to connect a daughterboard or wrapping board for your specific application.

The USB Type-C and Power Delivery daughterboard features two independent USB-C ports controlled by STM32G0. USB-C port 1 is dual role power (DRP) and can provide up-to 45W of power. USB-C Port 2 is sink only. Both supports USB PD protocol and alternate mode functionality.

Figure 1. STM32G081B-EVAL board with legacy peripheral daughterboard

Figure 2. STM32G081B-EVAL board with

UCPD daughterboard

June 2019

Pictures are not contractual.

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Contents

Contents

3

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Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1

Product marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2

Codification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Development environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1

System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.2

Development toolchains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.3

Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Delivery recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.1

Embedded ST-LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.1.1

6.1.2

Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

ST-LINK/V2-1 firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.2

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6.3

Clock references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.4

Reset source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.5

Boot Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.6

Peripherals on mother board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.6.1

6.6.2

6.6.3

6.6.4

6.6.5

6.6.6

6.6.7

Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

RS232 and RS485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

microSD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Analog Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

External I2C Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Motor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Display and Input devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.7

Peripherals on legacy peripheral daughterboard . . . . . . . . . . . . . . . . . . . 26

6.7.1

LDR (Light dependent resistor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

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6.7.2

6.7.3

6.7.4

6.7.5

Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Smartcard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

HDMI CEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

IR LED and IR receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.8

USB Type-C and Power Delivery daughterboard . . . . . . . . . . . . . . . . . . . 28

6.8.1

6.8.2

6.8.3

6.8.4

6.8.5

USB Type-C receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Power Delivery and local power management . . . . . . . . . . . . . . . . . . . 29

VBUS management and discharge mechanism . . . . . . . . . . . . . . . . . . 29

VBUS voltage-sensing and current-sense stage . . . . . . . . . . . . . . . . . . 30

CC management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.1

Connectors on mother board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.1.1

7.1.2

7.1.3

7.1.4

7.1.5

7.1.6

7.1.7

7.1.8

Motor control connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

External I2C connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Daughterboard connector CN4 and CN5 . . . . . . . . . . . . . . . . . . . . . . . . 33

ST-LINK/V2-1 USB Micro-B connector CN6 . . . . . . . . . . . . . . . . . . . . . 35

ST-LINK/V2-1 programming connector CN7 . . . . . . . . . . . . . . . . . . . . . 36 microSD connector CN8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Extension connector CN9 and CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

RS232 and RS485 connector CN11 . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.1.9

Standard SWD connector CN12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.1.10

High density SWD connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.1.11

TFT LCD connector CN14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.1.12

Audio jack CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.1.13

5 V Power connector CN16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.1.14

Analog input connector CN17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.2

Connectors on legacy peripheral daughterboard . . . . . . . . . . . . . . . . . . . 41

7.2.1

7.2.2

7.2.3

7.2.4

HDMI sink connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Smartcard connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

HDMI source connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Daughterboard female connector CN4 and CN5 . . . . . . . . . . . . . . . . . . 43

7.3

Connectors on UCPD daughterboard . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.3.1

7.3.2

7.3.3

7.3.4

USB Type A connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

DisplayPort source connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

19 V Power connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

USB3.1 Gen1 Type B connector CN4 . . . . . . . . . . . . . . . . . . . . . . . . . . 45

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7.3.5

7.3.6

7.3.7

7.3.8

USB Type-C connector PORT2 CN5 . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Display port sink connector CN6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

USB Type-C connector PORT1 CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Daughterboard female connector CN8 and CN9 . . . . . . . . . . . . . . . . . . 47

Appendix A Electrical schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Appendix B STM32G081B-EVAL IO Assignment . . . . . . . . . . . . . . . . . . . . . . . . . 73

Appendix C Federal Communications Commission (FCC) and

Industry Canada (IC) Compliance Statements . . . . . . . . . . . . . . . . 76

C.1

FCC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

C.1.1

C.1.2

C.1.3

Part 15.19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Part 15.105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Part 15.21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

C.2

IC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

C.2.1

Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

C.3

Déclaration de conformité . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Appendix D Mechanical dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

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List of tables

List of tables

Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Codification explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

ON/OFF convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Power source related Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Low voltage limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

32 KHz crystal X2 related solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

8 MHz crystal X3 related solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Boot related jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 9.

Boot0 related jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 10.

Audio related jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 11.

RS232 and RS485 related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 12.

RS485 related solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 13.

LCD modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Table 14.

Temperature sensor related solder bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 15.

Connection between ST8024L and STM32G081RBT6 . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 16.

VBUS related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 17.

Local power related jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 18.

VBUS Power Delivery profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table 19.

Voltage-sensing and current-sensing ADC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table 20.

Dead battery related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table 21.

Motor control connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Table 22.

RF E2PROM connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 23.

Daughterboard connector CN4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 24.

Daughterboard connector CN5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 25.

USB Micro-B connector CN6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 26.

microSD connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Table 27.

Extension connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 28.

Extension connector CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 29.

RS232 & RS485 connector CN11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 30.

Standard SWD debugging connector CN12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Table 31.

High density SWD debugging connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Table 32.

Analog input-output connector CN17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 33.

HDMI sink connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 34.

Smartcard connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Table 35.

HDMI source connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Table 36.

USB Type A connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Table 37.

DisplayPort source connector CN2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 38.

USB3.1 Gen1 Type B connector CN4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 39.

USB Type-C connector PORT2 CN5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 40.

DisplayPort sink connector CN6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Table 41.

USB Type-C connector PORT1 CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Table 42.

STM32G081B-EVAL IO Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Table 43.

Mechanical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Table 44.

Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

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List of figures

List of figures

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Figure 1.

STM32G081B-EVAL board with legacy peripheral daughterboard . . . . . . . . . . . . . . . . . . . 1

Figure 2.

STM32G081B-EVAL board with UCPD daughterboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 3.

Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 4.

STM32G081B-EVAL Evaluation board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 5.

Legacy peripheral daughterboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 6.

USB Type-C and Power Delivery daughterboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 7.

USB Composite Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 8.

5 V power structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 9.

GP comparator 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 10.

Motor Control connector CN1 (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 11.

I2C EXT connector CN2 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 12.

USB Micro-B connector CN6 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 13.

microSD connector CN8 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 14.

RS232 and RS485 connector CN11 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Figure 15.

Standard SWD debugging connector CN12 (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 16.

High density SWD debugging connector CN13 (top view) . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 17.

Power-supply connector CN16 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 18.

Analog input-output connector CN17 (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 19.

HDMI sink connector CN1 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 20.

Smartcard connector CN2 (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Figure 21.

HDMI source connector CN3 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Figure 22.

USB Type A connector CN1 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Figure 23.

DisplayPort source connector CN2 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 24.

19 V Power connector CN3 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 25.

USB3.1 Gen1 Type B connector CN4 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 26.

USB Type-C connector PORT2 CN5 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 27.

DisplayPort sink connector CN6 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 28.

USB Type-C connector PORT1 CN7 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 29.

STM32G081B-EVAL mother board top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Figure 30.

STM32G081B-EVAL MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Figure 31.

STM32G081B-EVAL power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Figure 32.

STM32G081B-EVAL audio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Figure 33.

STM32G081B-EVAL LCD microSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Figure 34.

STM32G081B-EVAL motor-control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 35.

STM32G081B-EVAL peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Figure 36.

STM32G081B-EVAL RS232 and RS485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Figure 37.

STM32G081B-EVAL extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Figure 38.

STM32G081B-EVAL ST-LINK V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Figure 39.

STM32G081B-EVAL SWD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure 40.

STM32G081B-EVAL legacy peripheral daughterboard . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure 41.

STM32G081B-EVAL legacy peripheral daughterboard HDMI and CEC . . . . . . . . . . . . . . 61

Figure 42.

STM32G081B-EVAL legacy peripheral daughterboard Smartcard and IR. . . . . . . . . . . . . 62

Figure 43.

STM32G081B-EVAL legacy peripheral daughterboard temperature sensor and LDR. . . . 63

Figure 44.

STM32G081B-EVAL UCPD daughterboard top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Figure 45.

STM32G081B-EVAL UCPD daughterboard CC and VCONN . . . . . . . . . . . . . . . . . . . . . . 65

Figure 46.

STM32G081B-EVAL UCPD daughterboard port1 DP USB3 . . . . . . . . . . . . . . . . . . . . . . . 66

Figure 47.

STM32G081B-EVAL UCPD daughterboard Type-C source con . . . . . . . . . . . . . . . . . . . . 67

Figure 48.

STM32G081B-EVAL UCPD daughterboard port2 DP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

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UM2403 Rev 2

UM2403 List of figures

Figure 49.

STM32G081B-EVAL UCPD daughterboard Type-C sink con . . . . . . . . . . . . . . . . . . . . . . 69

Figure 50.

STM32G081B-EVAL UCPD daughterboard USB PD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Figure 51.

STM32G081B-EVAL UCPD daughterboard power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Figure 52.

STM32G081B-EVAL UCPD daughterboard source power. . . . . . . . . . . . . . . . . . . . . . . . . 72

Figure 53.

Mechanical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

UM2403 Rev 2

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7

Features

1 Features

UM2403

Mother board

• STM32G081RBT6 Arm

®(a)

Cortex

®

-M0+ core-based microcontroller with 128 Kbytes of Flash memory and 32 Kbytes of RAM in LQFP64 package

• MCU voltage choice fixed 3.3 V or adjustable from 1.65 V to 3.6 V

• I

2

C compatible serial interface

• RTC with backup battery

• 8-Gbyte or more SPI interface microSD

™

card

• Potentiometer

• 4 color user LEDs and one LED as MCU low-power alarm

• Reset, Tamper and User buttons

• 4-direction control and selection joystick

• Board connectors:

– 5 V power jack

– RS-232 and RS485 communications

– Stereo audio jack including analog microphone input

– microSD™ card

– Extension I

2

C connector

– Motor-control connector

• Board extension connectors:

– Daughterboard connectors for legacy peripheral daughterboard or USB Type-C and Power Delivery daughterboard

– Extension connectors for daughterboard or wire-wrap board

• Flexible power-supply options:

– 5 V power jack

– ST-LINK/V2-1 USB connector

– Daughterboard

• On-board ST-LINK/V2-1 debugger/programmer with USB enumeration capability: mass storage, virtual COM port and debug port

• Comprehensive free software libraries and examples available with the STM32Cube package

• Support of a wide choice of Integrated Development Environments (IDEs) including

IAR™, Keil ® , GCC-based IDEs.

8/79

a. Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.

UM2403 Rev 2

UM2403

Legacy peripheral daughterboard

• IrDA transceiver

• IR LED and IR receiver

• Light dependent resistor (LDR)

• Temperature Sensor

• Board connectors:

– Two HDMI connectors with DDC and CEC

– Smartcard slot

USB Type-C and Power Delivery daughterboard

• Multiplexer for USB3.1 Gen1 / DisplayPort™ input and Type-C port1 output

• Multiplexer for Type-C port2 input and DisplayPort output / USB2.0

• VCONN on Type-C port1

• USB PD on Type-C port1

• Board connectors:

– Type-C port1 DRP (Dual Role Port)

– Type-C port2 sink

– DisplayPort input

– DisplayPort output

– USB 3.1 Gen1 Type-B receptacle

– USB2.0 Type-A receptacle

– 19 V power jack for USB PD

Features

UM2403 Rev 2

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78

Ordering information UM2403

To order the STM32G081B-EVAL Evaluation board, refer to

Table 1 . Additional information

is available in the datasheet and reference manual of the targeted STM32.

Order code

STM32G081B-EVAL

Table 1. Ordering information

Board reference

MB1350

Target STM32

STM32G081RB

Evaluation tools marked as “ES” or “E” are not yet qualified and are therefore not ready to be used as reference design or in production. Any consequences arising from such usage will not be at STMicroelectronics’ charge. In no event will STMicroelectronics be liable for any customer usage of these engineering sample tools as reference designs or in production.

‘E’ or ‘ES’ marking examples of location:

• on the targeted STM32 that is soldered on the board (for illustration of STM32 marking, refer to the section Package information in the STM32 datasheet at www.st.com

).

• next to the evaluation tool ordering part number, that is stuck or silkscreen printed on the board

2.2 Codification

The meaning of the codification is explained in

Table 2

.

STM32XXYYT-EVAL

XX

YY

T

Table 2. Codification explanation

Description Example: STM32G081B-EVAL

MCU series in STM32 Arm

Cortex MCUs

STM32G0 Series

MCU product line in the series STM32G081

STM32 Flash memory size:

B for 128 Kbytes

128 Kbytes

10/79

UM2403 Rev 2

UM2403 Development environment

• Windows

®

OS (7, 8 and 10), Linux

®

64-bit or macOS

®(a)

• USB Type-A to Micro-B cable

• Keil

®

MDK-ARM

(b)

• IAR™ EWARM (b)

• GCC-based IDEs

The demonstration software, included in the STM32Cube MCU Package corresponding to the on-board MCU, is preloaded in the STM32 Flash memory for easy demonstration of the device peripherals in standalone mode. The latest versions of the demonstration source code and associated documentation can be downloaded from the www.st.com

web page.

a. macOS® is a trademark of Apple Inc., registered in the U.S. and other countries.

b. On Windows only

UM2403 Rev 2

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78

Conventions

4 Conventions

UM2403

Table 3 provides the conventions used for the ON and OFF settings in the present

document.

Table 3. ON/OFF convention

Convention

Jumper JPx ON

Jumper JPx OFF

Jumper JPx [1-2]

Solder bridge SBx ON

Solder bridge SBx OFF

Resistor Rx ON

Resistor Rx OFF

Definition

Jumper fitted

Jumper not fitted

Jumper should be fitted between Pin 1 and Pin 2

SBx connections closed by 0 Ω resistor

SBx connections left open

Resistor soldered

Resistor not soldered

Some verifications are needed before using the board for the first time, to make sure that no damage occurred during shipment and that no components are unplugged or lost.

When the board is extracted from its plastic bag, check that no component remains in the bag. The main component to verify is microSD card which may have been ejected from the connector CN8 (right side of the board).

Caution: There is an explosion risk if the battery is replaced by an incorrect one. Make sure to dispose of used batteries according to the instructions.

12/79

UM2403 Rev 2

UM2403

6

Hardware layout and configuration

Hardware layout and configuration

The STM32G081B-EVAL Evaluation board is designed around the STM32G081RBT6 (64-

pin LQFP package). The hardware block diagram Figure 3

illustrates the connection between STM32G081RBT6 and peripherals (motor control connector, RS232, RS485,

Audio DAC, microphone ADC, TFT LCD, CAN, IrDA, IR LED, IR receiver, LDR, MicroSD card, CEC on two HDMI connectors, Smartcard slot, Temperature sensor… etc.) and

Figure 4 help users to locate these features on the Evaluation board.

Figure 3. Hardware block diagram

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UM2403 Rev 2

13/79

78

Hardware layout and configuration

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UM2403 Rev 2

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78

Hardware layout and configuration UM2403

Note:

The ST-LINK/V2-1 programming and debugging tool is integrated on the STM32G081B-

EVAL Evaluation board. Compared to ST-LINK/V2 the changes are listed below.

The new features supported on ST-LINK/V2-1 are:

• USB software enumeration

• Virtual COM port interface on USB

• Mass storage interface on USB

• USB power management request for more than 100 mA power on USB

This feature is no longer supported on ST-LINK/V2-1:

• SWIM interface

For all general information concerning debugging and programming features common between V2 and V2-1 refer to ST-LINK/V2 in-circuit debugger/programmer for STM8 and

STM32 User manual (UM1075) in the www.st.com

website.

It is possible to power the board via CN6 (Embedded ST-LINK/V2-1 USB connector) even if an external tools is connected to CN12 or CN13 (External SWD connector).

6.1.1 Drivers

Note:

The ST-LINK/V2-1 requires a dedicated USB driver, which can be found on www.st.com

for

Windows PC (7, 8 or 10).

In case the STM32G081B-EVAL Evaluation board is connected to the PC before the driver is installed, some STM32G081B-EVAL interfaces may be declared as “Unknown” in the PC device manager. In this case, the user must install the driver files, and update the driver of the connected device from the device manager.

Prefer using the “USB Composite Device” handle for a full recovery.

Figure 7. USB Composite Device

6.1.2 ST-LINK/V2-1 firmware upgrade

The ST-LINK/V2-1 embeds a firmware upgrade mechanism for in-situ upgrade through the

USB port. As the firmware may evolve during the lifetime of the ST-LINK/V2-1 product (for example new functionality, bug fixes, support for new microcontroller families), it is recommended to visit the www.st.com

website before starting to use the STM32G081B-

EVAL board and periodically, to stay up-to-date with the latest firmware version.

16/79

UM2403 Rev 2

UM2403 Hardware layout and configuration

The STM32G081B-EVAL Evaluation mother board is designed to be powered by 5 V DC power supply and is protected by PolyZen from wrong power plug-in event. It is possible to configure the mother board to use any of the following four sources for the power supply:

• 5 V DC power adapter connected to CN16, the power Jack on the board (Power

Supply Unit on silk screen of JP17 (PSU)). The external power supply is not provided with the board.

• 5 V DC power with 500 mA limitation from CN6, the USB Micro-B connector of

STLINK/V2-1 (USB 5 V power source on silkscreen of JP17 (STlk)). If the USB enumeration succeeds, the ST-LINK U5V power is enabled, by asserting the PWR_EN pin. This pin is connected to a power switch, which powers the board. This power switch features also a current limitation to protect the PC in case of short-circuit on the board. If overcurrent (more than 500 mA) happens on the board, the LED LD5 lights up.

• 5 V DC power from CN6 directly, the USB Micro-B connector of STLINK/V2-1 (USB 5 V power source on silkscreen of JP17 (U5V)).

• 5 V DC power from CN5 or CN9, the extension connector for daughterboard power source (D5V) on silkscreen of JP19).

The UCPD daughterboard uses its own 19V power adapter to support USB PD, in this case the mother board uses D5V from the UCPD daughterboard to supply all circuits on

STM32G081B-EVAL Evaluation board. D5V of the UCPD daughterboard has three sources as below:

• 19 V DC power adapter connected to CN3 on the UCPD daughterboard

• Power from Type-C Port1 CN7 on the UCPD daughterboard

• Power from Type-C port2 CN5 on the UCPD daughterboard

19 V DC power adapter and Type-C Port1 sources are automatically selected by circuit (D8 and T10 on the UCPD daughterboard). Refer to Table15 for detail.

UM2403 Rev 2

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78

Hardware layout and configuration

Figure 8. 5 V power structure

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The STM32G081B-EVAL Evaluation board can be powered from the ST-LINK/V2-1 USB connector CN6 with a PC, but only the ST-LINK/V2-1 circuit has the power before USB enumeration, because the host PC only provides 100 mA to the boards at that time. During the USB enumeration, the STM32G081B-EVAL board requires 300 mA power from the host

PC. If the host is able to provide the required power, the enumeration succeeds, the power transistor U5 is switched ON, the red LED LD7 is turned ON, and thus the STM32G081B-

EVAL board is powered and can consume maximum 300 mA current. If the host PC is not able to provide the requested current, the enumeration fails. Therefore the STM32 part including the extension board is not powered. As a consequence the red LED LD7 remains turned OFF. In this case it is mandatory to use an external power supply to supply extra power.

E5V (from PSU) or D5V can be used as external power supply in case current consumption of the STM32G081B-EVAL board exceeds the allowed current on USB. In this condition it is still possible to use USB for communication, for programming or debugging only, but it is mandatory to power the board first using E5V or D5V, and then connecting the USB cable to the PC. Proceeding this way ensures that the enumeration succeeds thanks to the external power source.

The following power sequence procedure must be respected:

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UM2403 Rev 2

UM2403 Hardware layout and configuration

Jumper

1.

Connect jumper JP17 for PSU or D5V side

2. Check that JP5 is removed

3. Connect the external power source to PSU or D5V (daughterboard mounted)

4. Check red LED LD7 is turned ON

5. Connect the PC to USB connector CN6

If this order is not respected, the board may be powered by VBUS first then E5V or D5V, and the following risks may be encountered:

1.

If more than 300 mA current is needed by the board, the PC may be damaged or current can be limited by PC. As a consequence the board is not powered correctly.

2. 300 mA is requested at enumeration (since JP5 must be OFF), so there is risk that request is rejected and enumeration does not succeed if PC can't provide such current.

Consequently the board is not powered (LED LD7 remains OFF).

In case the STM32G081B-EVAL board is powered by an USB charger through CN6, there is no USB enumeration needed. User can set JP17 to U5V to allow the board to be powered anyway from CN6.

The power source is selected by setting the related jumpers JP17, JP15 and JP16 as described in table 2.

Table 4. Power source related Jumpers

Description

JP17 is used to select one of the four possible power supply resources.

Only for power supply from USB (CN6) of ST-LINK/V2-1 to STM32G081B-EVAL, JP17 is set as shown on the right:

JP17

89 368 '9 67ON

Only for power supply from the daughterboard connectors (CN5 or CN9) to STM32G081B-

EVAL, JP17 is set as shown on the right: (default Setting)

89 368 '9 67ON

Only for power supply jack (CN16) to the STM32G081B-EVAL, JP17 is set as shown on the right:

89 368 '9 67ON

Only for power supply from USB (CN6) to STM32G081B-EVAL without current limited, JP17 is set as shown on the right:

89 368 '9 67ON

UM2403 Rev 2

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78

Hardware layout and configuration

Jumper

UM2403

Table 4. Power source related Jumpers (continued)

Description

The Vbat pin of STM32G081RBT6 is connected to VDD when JP15 is set as shown on the right

(default setting):

JP15

The Vbat pin of STM32G081RBT6 is connected to 3V battery when JP15 is set as shown on the right:

The VDD pin of STM32G081RBT6 is connected to 3.3V when JP16 is set as shown on the right

(default setting), when the UCPD daughterboard is used, this setting is mandatory:

JP16

The VDD pin of STM32G081RBT6 is connected to VDD_ADJ when JP16 is set as shown on the right:

Note:

Note:

Note:

The VDD_MCU Idd measurement can be done by current meter which mounted on JP11 when it is open. But JP11 is not allowed to be opened without current meter; otherwise

STM32G081RBT6 would be damaged due to lacking of power supply on its power pins.

LD8 is lit when VDD < 2.7 V and in this case IOs and some Analog IPs of STM32G081RBT6 work with degraded performances.

The UCPD daughterboard works with VDD=3.3V, so it is mandatory to close JP16 pin1 and pin2.

The LED LD7 is lit when the STM32G081B-EVAL Evaluation board is powered by the 5V correctly.

Table 5 shows the low voltage limitations that might apply depending on the characteristics

of some peripheral components. Components might work incorrectly when the power level is lower than the limitation.

Board

Table 5. Low voltage limitation peripheral component IO name

Mother board

Mother board

Audio amplifier

Legacy daughterboard Smartcard

U17

Microphone amplifier U12

CN2

Audio input

Audio output

USART1

2.2V

2.7V

2.7V

Low voltage limitation

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UM2403 Rev 2

UM2403 Hardware layout and configuration

Jumper

SB18

SB19

Two clock sources are available on STM32G081B-EVAL Evaluation board for

STM32G081RBT6 and RTC embedded.

• X2, 32KHz Crystal for embedded RTC

• X3, 8MHz Crystal for the STM32G081RBT6 microcontroller, it can be disconnected by removing R45 and R46 when internal RC clock is used

Table 6. 32 KHz crystal X2 related solder bridges

Description

PC14 is connected to 32KHz crystal when SB18 is open (default setting).

PC14 is connected to extension connector CN9 when SB18 is closed. In such case R43 must be removed to avoid disturbance due to the 32Khz quartz.

PC15 is connected to 32KHz crystal when SB19 is open (default setting).

PC15 is connected to extension connector CN9 when SB19 is closed. In such case R44 must be removed to avoid disturbance due to the 32Khz quartz.

Jumper

SB20

SB21

Table 7. 8 MHz crystal X3 related solder bridges

Description

PF0 is connected to 8MHz crystal when SB20 is open (default setting).

PF0 is connected to extension connector CN10 when SB20 is closed. In such case R45 must be removed to avoid disturbance due to the 8Mhz quartz.

PF1 is connected to 8MHz crystal when SB21 is open (default setting).

PF1 is connected to extension connector CN10 when SB21 is closed. In such case R46 must be removed to avoid disturbance due to the 8Mhz quartz.

Note:

The general reset of the STM32G081B-EVAL Evaluation board is active low and the reset sources include:

• Reset button B1

• Debugging Tools from SWD connector CN12 and CN13

• Daughterboard from CN4

• Embedded ST-LINK/V2-1

• RS232 connector CN11 for ISP.

The jumper JP12 to be closed for RESET handled by pin8 of RS232 connector CN11 (CTS

signal), please refer to Section 6.6.2

for detail.

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78

Hardware layout and configuration UM2403

Jumper configuration

CN10 pin 19 and pin 17 closed by jumper

CN10 pin 19 and pin 21 closed by jumper

CN10 pin 19 and pin 21 closed by jumper

The STM32G081B-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 closing JP9 pin2-3 and setting one jumper cap on CN10 among pin 17, pin 19 and pin 21 and one option bit (see

Table 8 and Table 9 ).

Table 8. Boot related jumper

Bit25 in USER

OPTION BYTES

Boot from

X

0

1

STM32G081B-EVAL boot from User Flash (default setting)

STM32G081B-EVAL boot from Embedded SRAM

STM32G081B-EVAL boot from System Memory

Jumper

Table 9. Boot0 related jumpers

Description

PA14-BOOT0 is used as SWCLK when JP9 is set as shown on the right (default setting).

JP9 The Bootloader_BOOT0 is managed by pin 6 of connector CN11 (RS232 DSR signal) and it is connected to PA14-BOOT0 when JP9 is set as shown on the right. This configuration is used for boot loader application only.

6.6 Peripherals on mother board

6.6.1 Audio

The STM32G081B-EVAL Evaluation board supports stereo audio playback and microphone recording by an external headset connected on audio jack CN15. Audio play is connected to

DAC output of STM32G081RBT6 through an audio amplifier and microphone on headset is connected to ADC input of STM32G081RBT6 through a microphone amplifier. Audio amplifier can be enabled or disabled by setting of JP18 and mono/stereo playback can be

chosen by setting of JP6, refer to Table 10

for detail.

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UM2403 Rev 2

UM2403 Hardware layout and configuration

JP18

JP19

Jumper

Table 10. Audio related jumpers

Description

Speaker amplifier U17 is enabled when JP18 is closed (default setting)

Speaker amplifier U17 is disabled when JP18 is open

PA4 is connected to VIN1 of Audio amplifier when JP19 is closed (default setting)

PA4 is disconnected to VIN1 of Audio amplifier when JP19 is open

Mono playback is enabled when JP6 is set as shown on the right (default setting):

JP6

Stereo playback is enabled when JP6 is set as shown on the right:

6.6.2

Jumper

Audio amplifier operates correctly when VDD > 2.2 V and microphone amplifier operates correctly when VDD > 2.7 V.

RS232 and RS485

Communication through RS232 (with Hardware flow control CTS and RTS) and RS485 is supported by D-type 9-pins RS232/RS485 connector CN11, which is connected to USART1 of STM32G081RBT6 on STM32G081B-EVAL Evaluation board. The signal

Bootloader_RESET (shared with CTS signal) and Bootloader_BOOT0 (shared with DSR signal) are added on RS232 connector CN11 for ISP support.

By default, PC4 and PC5 are connected as TX and RX signals. PA9 and PA10 are also can be connected as these two signals for bootloader which is NOT supported on PC4 and PC5

by setting of jumpers in Table 11

.

Table 11. RS232 and RS485 related jumpers

Description

RS232_RX is connected to RS232 transceiver and RS232 communication is enabled when

JP14 is set as shown on the right (default setting):

JP14

RS485_RX is connected to RS485 transceiver and RS485 communication is enabled when

JP14 is set as shown on the right:

JP10

PC4 is connected as TX signal without bootloader being supported when JP10 is set as shown on the right (Default setting):

PA9 is connected as TX signal with bootloader being supported when JP10 is set as shown on the right (CN1 motor control connector is needed to be open in this case):

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78

Hardware layout and configuration UM2403

Table 11. RS232 and RS485 related jumpers (continued)

PC5 is connected as RX signal without bootloader being supported when JP8 is set as shown on the right (default setting):

JP8

PA10 is connected as RX signal with bootloader being supported when JP8 is set as shown on the right (in this case, CN1 motor control connector must be open):

Jumper

The RS485 communication is supported by RS485 transceiver ST3485EBDR which connected to pin4 and pin9 of D-type 9-pins connector CN11 (share same connector with

USART1).

Table 12. RS485 related solder bridges

Description

The external failsafe biasing are enabled when solder bridges SB29 and SB31 was closed

SB29,SB31

Default Setting: Not fitted

The bus termination is enabled when solder bridge SB32 is closed.

SB32

Default Setting: Not fitted

The AC termination is disabled when solder bridge SB30 is closed for high baud rate communication.

SB30

Default Setting: Not fitted

The 8-GB (or more) microSD card connected to SPI1 port (shared with color LCD) of

STM32G081RBT6 is available on the board. microSD card detection is managed by standard IO port PC9 and it must be set with internal pull-up.

The two-pin header CN17 and 10K ohm potentiometer RV3 was connected to PB2 of

STM32G081RBT6 as analog input. A low pass filter can be implemented by replacing of

R111 and C90 with right value of resistor and capacitor as requested by end user's application.

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The I2C1 bus of the STM32G081RBT6 is connected to CN2 on the STM32G081B-EVAL.

The I2C functional daughterboard can be mounted on the CN2 connector and accessed by the microcontroller through the I2C1 bus, it shares same I2C1 bus with Temperature sensor

U3 and DDC on HDMI_Source connector CN3 on legacy peripheral daughterboard.

The pull up voltage level of I2C1 bus is automatically decided by the daughterboard (the legacy peripheral daughterboard or the UCPD daughterboard) on CN4 and CN5. If there is

UM2403 Rev 2

UM2403 Hardware layout and configuration no daughterboard on these connector, pin17 must be closed to pin18 on both CN4 and CN5 by jumpers. Thus I2C pull up voltage and reset pull up voltage on CN2 would be the voltage of VDD.

The STM32G081B-EVAL Evaluation board supports both asynchronous and synchronous three-phase brushless motor control via a 34-pins connector CN1, which provides all required control and feedback signals to and from motor power-driving board.

Available signals on this connector includes emergency stop, motor speed, 3 phase motor current, bus voltage, power heatsink coming from the motor driving board and 6 channels of

PWM control signal going to the motor driving circuit.

Daughterboard on CN4 and CN5 must be removed and some jumpers set for motor control application:

• Close JP1, JP2 and JP3.

• Open JP4 and JP6.

• Open pin2-3 of JP8 and JP10.

Note:

The 2.4" color TFT LCD connected to SPI1 port of STM32G081RBT6 and 4 general purpose color LED's (LD 1,2,3,4) are available as display device. The 4-direction joystick

(B3) with selection key which connected to PA0 and supports wakeup feature. Tamper button (B2) are also available as input devices.

Table 13. LCD modules

2.4” TFT LCD connector CN14

4

5

6

7

8

Pin Description

1

2

3

CS

SCL

SDI

RS

WR

RD

SDO

RESET

PB8

PB3

PA7

-

-

-

PB4

RESET#

12

13

14

15

16

9

10

11

VDD

VCI

GND

GND

BL_VDD

BL_Control

BL_GND

BL_GND

3.3V

3.3V

GND

GND

5V

5V

GND

GND

The bi-directional voltage translator is implemented on SPI MOSI signal between

STM32G081RBT6 and LCD to support 3-wires serial interface of LCD panel only supports

3-wire SPI port. The direction of this voltage translator is controlled by IO PC12 (the IO PA7 is working as MOSI when PC12 is high or as MISO when PC12 is LOW).

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78

Hardware layout and configuration

6.7

6.7.1

Peripherals on legacy peripheral daughterboard

UM2403

LDR (Light dependent resistor)

The VDD is divided by resistor bridge of LDR VT9ON1 and 8.2 K resistor and connected to

PA1 (COM1_IN+/ADC IN1) as shown

Figure 9 on STM32G081B-EVAL Evaluation board.

Figure 9. GP comparator 1

It's possible to compare LDR output with ¼ band gap, 1/2 band gap, 3/4 band gap, band gap and DAC1 OUT and to connect LDR output to ADC IN1 for AD conversion.

Note:

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A temperature sensor STLM75M2F is connected to the I2C1 bus of the STM32G081RBT6, and shares same I2C1 bus with EXT I2C connector (on mother board) and DDC on

HDMI_Source connector CN3 (on legacy board).

I2C address of temperature sensor is 0b100100(A0), A0 can be 0 or 1 depends on the setting of SB7.

Solder Bridge

Table 14. Temperature sensor related solder bridge

Description

I2C address A0 is 0 when SB7 is open.

SB7

(Default setting)

I2C address A0 is 1 when SB7 is closed.

The temperature result measured from STLM75M2F would be a little higher than the ambient temperature due to the power dissipation of components on the board.

UM2403 Rev 2

UM2403 Hardware layout and configuration

6.7.3 Smartcard

STMicroelectronics smartcard interface chip ST8024L is used on STM32G081B-EVAL

Evaluation board for asynchronous 1.8V, 3V and 5V smartcards. It performs all supply protection and control functions based on the connections with STM32G081RBT6 listed in

Table 15 .

Signals of

ST8024L

Table 15. Connection between ST8024L and STM32G081RBT6

Description

Connect to

STM32G081RBT6

5V/3V

I/OUC

XTAL1

OFF

RSTIN

CMDVCC

1.8V

Smartcard power supply selection pin

MCU data I/O line

Crystal or external clock input

Detect card presence , Interrupt to MCU

Card reset input from MCU

Start activation sequence input (Active Low)

1.8 V V

CC operation selection. Logic high selects 1.8 V operation and overrides any setting on the 5V/3V pin.

PB15

PA2

PD4

PB12

PA15

PB0

PA3

Smartcard operates correctly when VDD > 2.7 V.

Note:

Two HDMI connectors CN1 and CN3 are available on STM32G081B-EVAL legacy peripheral daughterboard.

• The connector CN1 is HDMI sink connector with

– DDC connected to I2C2 of STM32G081RBT6

– HPD controlled by IO PD2 through transistor T1

– CEC connected to PB10 through transistor T4

• The connector CN3 is HDMI source connector with

– DDC connected to I2C1 of STM32G081RBT6 and shared with Temperature sensor and EXT I2C connector

– HPD controlled by IO PD3

– CEC connected to PB10 through transistor T4

– HDMI 5V powered by power switch U1

The signals TDMS D+[0..2], TDMS_CLK+, TDMS D-[0..2], TDMS_CLK- on these two HDMI connectors are connected together.

The CEC injector mode can be enabled by some PCB reworks for debugging purpose only:

• Remove resistors R3, R4, R7, R9, R10, R15 and R22.

• Close solder bridges SB3, SB4, SB5 and SB6.

The I/O PD2 must be set in open-drain output mode by firmware when working as an HPD signal control on the HDMI sink connector CN1.

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Hardware layout and configuration

6.7.5

Note:

IR LED and IR receiver

UM2403

The IR receiver TSOP34836 is connected to PC6 of STM32G081RBT6 and a current around 100mA on IR LED is driven by PB9 through transistors T2 and T3 on the board.

IR LED may be driven by PB9 directly with 20mA current when SB1 is closed and SB2 is open.

6.8

Note:

Note:

Note:

USB Type-C and Power Delivery daughterboard

The UCPD daughterboard is a development platform composed of STM32G081B-EVAL

Evaluation board. This daughterboard is used for demonstrating the functionalities of the

USB Type-C and USB Power Delivery (USB PD) technologies, facilitating the users to develop their solutions. Refer to

Figure 3 for daughterboard structure.

The USB PD reference design on the UCPD daughterboard is used to demonstrate the capability of STM32G081RBT6. This USB PD circuit may not pass all USB PD certifications.

The UCPD daughterboard works with VDD=3.3V. So JP16 pin1-2 must be closed on mother board.

The UCPD daughterboard conflicts with legacy peripheral daughterboard and Motor control on STM32G081B-EVAL Evaluation board.

Two USB Type-C certified receptacles CN7 and CN5 are present on the UCPD daughterboard, representing respectively the PORT 1 and PORT 2. PORT 1 can be used as

DRP (Dual-Role Port), which is eligible to supply another platform plugged by a USB

Type-C cable when they are configured as Provider or, otherwise, to be supplied in case of

Consumer configuration. PORT 2 can only be used as SINK.

Video signals on display port input connector (CN6) and data signals on USB3.1 Gen1

Type-B connector (CN4) are multiplexed on Type-C PORT 1 thanks to a crosspoint switch

IC TUSB546-DCI. These signals on CN6 or on CN4 have to be generated by an external computer or notebook to evaluate the alternate mode (AM) capability of the USB PD technology. The crosspoint switch can be configured through I2C bus, and its I2C address is

0b1000100. The cable which is plugged into CN4 can be detected by PA15.

Same as Type-C PORT1, video signals on display port output connector (CN2) are connected to Type-C PORT 2 through another crosspoint switch IC CBTL08GP053 and

DisplayPort Linear Redriver IC SN65DP141. I2C address of CBTL08GP053 is 0b0110000 and SN65DP141's default I2C address is 0b0000000. A Type-A receptacle's (CN1) D+ and

D- signals are also connected to Type-C PORT 2 directly. Its VBUS can be set by JP3 in

Table 16 .

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UM2403 Hardware layout and configuration

Jumper

Table 16. VBUS related jumpers

Description

VBUS is connected to VCONN when JP3 is set as shown on the right (default setting).

JP3

VBUS is connected to D5V through mother board when JP3 is set as shown on the right.

Note: Some week USB charger can not provide power to board immediately from port1 Type-C receptacle when external 19V power adapter is plugged off. If board lose power and reset during such use case, close JP6 may help to solve this problem. JP6 is open by default.

6.8.2

Jumper

Power Delivery and local power management

The UCPD daughterboard has its own external power jack (CN3, 19V/4A input) to support power delivery function and to provide up to 15V/3A on Type-C port1 (CN7).

The STM32G081B-EVAL Evaluation board can be powered by D5V from the UCPD daughterboard as shown in

Figure 5 . D5V on the UCPD daughterboard can be generated

by three resources, 19V from external power jack, VBUS on Port 1 and VBUS on Port 2. A circuit is implemented on the UCPD daughterboard to automatically select external 19V power supply or VBUS on Port1, because external 19V and VBUS on Port1 are the two power sources for Port1 to D5V. A jumper JP5 is used to select D5V resources in

Table 17 .

Table 17. Local power related jumpers

Description

D5V from the UCPD daughterboard is generated from external 19V or VBUS on Port1 when JP5 is set as shown on the right (default setting).

JP5

D5V from the UCPD daughterboard is generated from VBUS on Port2 when JP5 is set as shown on the right.

Type-C port1 (CN7) can be used as DRP (Dual-Role Port), its VBUS can be managed for supplying other platforms as Provider, or to be supplied as Consumer. Two MOSFETs T6 and T7 are set in back-to-back configuration to protect and isolate the VBUS supplying path on both directions.

If the CN7 acts as Provider, the VBUS is on the supply path by mean of the discrete load switch (T6 and T7) driven by the STM32G081RBT6 (GPIO, PD3). For the Consumer case, the same VBUS path is managed by PD3 of STM32G081RBT6 enabling the discrete load switch.

All power profiles are listed in Table 18

.

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78

Hardware layout and configuration UM2403

CN7 role

Table 18. VBUS Power Delivery profiles

Solder bridges setting

Power level

Source control signal

Voltage control signal

SB2, SB3, SB23,

SB26 ON

SB13, SB14, SB15

OFF

PWM Mode:

PWM voltage-3A

PD3 High PC1-PWM signal

Provider

SB13, SB14, SB15

ON

GPIO Mode:

5V / 9V / 15V- 3A

SB2, SB3, SB23,

SB26 OFF

PD3 High

-

5V: PC1(VSOURCE-

9V) and

PA1(VSOURCE-15V) tristate

9V: PC1(VSOURCE-

9V) low

15V: PA1 (VSOURCE-

15V) low

Consumer -

Decided by Provider which is connected through Type-C cable

PD3 low

Moreover, the VBUS path on PORT1 presents a discharge mechanism implemented by the

MOSFET T8 and an RC filter and controlled by PB13, and the VBUS path on PORT2 presents a discharge mechanism implemented by the MOSFET T9 and an RC filter and controlled by PB14.

6.8.4

PORT 1

PORT 2

PORT

VBUS voltage-sensing and current-sense stage

Each Type-C port is equipped by a voltage-sensing and a current-sensing stage which are matched with the voltage sensing carried by the STM32G081RBT6 ADC peripherals. Refer to

Table 19 for detail. They are able to monitor the right power level applied on the port

VBUS.

PB1

PA3

Table 19. Voltage-sensing and current-sensing ADC

VSENSE ADC ISENSE ADC

ADC_IN9

ADC_IN3

PB10

PB12

ADC_IN11

ADC_IN16

30/79

Dead battery, VCONN output and fast role swap functions are supported on CC signal of

Type-C PORT 1.

1.

Dead battery enable

Dead battery function is supported by OVP chip U17 and U16. And this function also

UM2403 Rev 2

UM2403 Hardware layout and configuration

Jumper embedded in STM32G081RBT6. When OVP part U17 is bypassed, dead battery function in STM32G081RBT6 can be enable or disable through enable signals by set

JP2 (CC1) or JP1 (CC2). Refer to Table 20

for detail.

Table 20. Dead battery related jumpers

Description

Embed dead battery function is enable when JP1 is set as shown on the right (default setting).

JP1

Embed dead battery function is disable when JP1 is set as shown on the right.

JP2

Embed dead battery function is enable when JP2 is set as shown on the right (default setting).

Embed dead battery function is disable when JP2 is set as shown on the right.

2. VCONN output control

When the full-featured cable is connected to PORT 1, the VCONN is directly managed by the STM32G081RBT6 by mean of the PD4 or PB9 and the load switches STMPS2161 U10 and U14.

3. Fast role swap

Type-C PORT 1 can be configure to action fast role swap managed by STM32G081RBT6 through PA2 (CC1) and PB0 (CC2).

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78

Connectors

7 Connectors

7.1

7.1.1

Connectors on mother board

Motor control connector CN1

Figure 10. Motor Control connector CN1 (top view)

UM2403

06Y9

Description

Emergency STOP PB12

PWM-UH

PWM-UL

PA8

PD2

PWM-VH

PWM-VL

PWM-WH

PWM-WL

PA9

PD3

PA10

PD4

PHASE A

CURRENT

PHASE B

CURRENT

PHASE C

CURRENT

NTC BYPASS

RELAY

DISSIPATIVE

BRAKE PWM

PA2

PA6

PB10

PB9

PB15

Table 21. Motor control connector CN1

Pin of

STM32G081RBT6

Pin number of

CN1

Pin number of

CN1

Pin of

STM32G081RBT6

7

9

11

13

1

3

5

15

17

19

21

23

8

10

12

14

2

4

6

16

18

20

22

24 -

-

-

-

-

-

-

-

-

PA1

25 26 PA3 +5V power

PFC SYNC2

PFC SYNC1

PFC PWM

-

PD0

PC1

PB1

27

29

28

30 -

Description

GND

GND

GND

GND

GND

GND

BUS VOLTAGE

GND

GND

GND

GND

GND

Heatsink temperature

3.3V power

GND

32/79

UM2403 Rev 2

UM2403 Connectors

Description

Encoder A

Encoder B

Table 21. Motor control connector CN1 (continued)

Pin of

STM32G081RBT6

Pin number of

CN1

Pin number of

CN1

Pin of

STM32G081RBT6

PC6

PB5

31

33

32

34

-

PB0

Description

GND

Encoder Index

7.1.2 External I2C connector CN2

Figure 11. I2C EXT connector CN2 (front view)

7.1.3

069

1

2

3

4

Pin number

Table 22. RF E2PROM connector CN2

Description

I2C1_SDA (PB7)

NC

I2C1_SCL (PB6)

EX_RESET(PC0)

5

6

7

8

Pin number Description

PWR (Define by daughterboard on CN5, or VDD when short CN5 pin17 and pin18)

NC

GND

NC

Daughterboard connector CN4 and CN5

Two 18-pins male headers CN4 and CN5 are designed to connect with the legacy peripheral daughterboard or the UCPD daughterboard to STM32G081B-EVAL Evaluation mother board. All GPI/Os are available on CN4, CN5 and extension connector CN9, CN10.

Each pin on CN4 and CN5 can be used by a daughterboard after disconnecting it from the corresponding function block on STM32G081B-EVAL Evaluation board. Please refer to

Table 23 and Table 24

for detail.

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78

Connectors UM2403

3

4

1

2

5

6

7

8

9

10

11

12

13

14

15

16

17

18

PA1

PA15

PB6

PB7

GND

RESET#

PC6

PB13

PB14

PB1

PB10

PA3

PB12

+3V3

PB11

Pin Signal

Table 23. Daughterboard connector CN4

Mother board

Function

Legacy daughterboard

Function (CN5)

UCPD daughterboard

Function (CN9)

-

-

-

MC_BusVoltage

I2C1_SCL

I2C1_SDA

MC_ENA

-

-

LDR_OUT

Smartcard RST

I2C1_SCL

I2C1_SDA

IR_IN

-

-

MC_PFCpwm

MC_CurrentC

I2C2_SCL

I2C2_SDA

-

HDMI_CEC

-

MC_heatsinkTemp Smartcard 1V8

MC_EmergencyST

OP

Smartcard OFF

-

V_CTL2

USB3_DET

I2C1_SCL

I2C1_SDA

-

-

Display port

HPD_SOURCE

DISCHARGE 1

DISCHARGE 2

VSENSE 1

ISENSE 1

VSENSE 2

ISENSE 2

Daughterboard detection

-

Daughterboard detection

-

-

Daughterboard detection & USB

PD output VSENSE

-

-

-

-

-

-

-

-

Keep JP2 open

Keep JP3 open

VDD_ANA -

I2C_PU

VDD -

I2C pull up power of CN2

-

-

-

-

-

-

How to disconnect with function block on mother board

-

-

-

-

Keep JP1 open

-

1

2

3

4

5

6

PA8

PB15

PA9

PA10

GND

PD4

Pin Signal

Table 24. Daughterboard connector CN5

Mother board

Function

Legacy daughterboard

Function (CN4)

UCPD daughterboard

Function (CN8)

PORT1_CC1 MC_UH

MC_Dissipative brake

MC_VH/USART1_

TX_BOOT

MC_WH/USART1_

RX_BOOT

-

MC_WL

-

-

-

Smartcard 3/5 V

-

Smartcard CK

PORT1_CC2

PORT1_DB1

PORT1_DB2

-

VCONN_EN1 -

-

-

-

How to disconnect with function block on mother board

Keep JP10 pin2-3 open

Keep JP8 pin2-3 open

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UM2403 Rev 2

UM2403 Connectors

15

16

17

18

7

8

9

10

11

12

13

14

PB9

PA2

PB0

+5V

PB5

PC1

PD0

PD2

PD3

D5V

EXT I2C

PWR

VDD

Pin Signal

-

-

Table 24. Daughterboard connector CN5 (continued)

Mother board

Function

Legacy daughterboard

Function (CN4)

UCPD daughterboard

Function (CN8)

How to disconnect with function block on mother board

MC_NTC

MC_Current A

MC_ENINDEX

MC_ENB

MC_PFCsync1

MC_PFCsync2

MC_UL

MC_VL

IR_OUT

Smartcard TX

-

HDMI_

HPD_SOURCE

-

VCONN_EN2

FRS_TX1

-

Smartcard

CMDVCC

FRS_TX2

Temp Sensor INT

-

Display port

HPD_IN

V_CTL1 -

PORT2_CC1

HDMI_ HPD_SINK PORT2_CC2

SOURCE_EN

-

-

-

-

-

-

-

-

-

-

-

Power of CN2

-

5V

-

VDD

-

-

The USB Micro-B connector CN6 is used to connect embedded ST-LINK/V2-1 to PC for debugging of board.

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

1

2

3

Pin number

Table 25. USB Micro-B connector CN6

Description Pin number

VBUS (power)

DM

DP -

4

5

-

ID

GND

Description

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Connectors UM2403

7.1.6

The connector CN7 is used only for embedded ST-LINK/V2-1 programming during board manufacturing. It is not populated by default and not for end user.

microSD connector CN8

Figure 13. microSD connector CN8 (front view)

7.1.7

-

3

4

1

2

Pin number

Table 26. microSD connector CN9

Description

Pin number

-

NC

MicroSDcard_CS (PD1)

MicroSDcard_DIN(PA7)

+3V3

7

8

5

6

10

Description

MicroSDcard_CLK (PB3)

Vss/GND

MicroSDcard_DOUT(PB4)

NC

MicroSDcard_detect (PC9)

Extension connector CN9 and CN10

Two 22-pin male headers CN9 and CN10 can be used to connect with daughterboard or standard wrapping board to STM32G081B-EVAL Evaluation board. The standard width between CN9 pin1 and CN10 pin1 is 2700mils (68.58mm). The standard was implemented on the majority of Evaluation boards.

Each pin on CN9 and CN10 can be used by a daughterboard after disconnecting it from the corresponding function block on STM32G081B-EVAL Evaluation board. Please refer to

Table 27 and Table 28

for detail.

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UM2403 Rev 2

UM2403 Connectors

6

8

10

12

14

16

18

20

22

15

17

19

21

2

4

7

9

11

13

1

3

5

Pin Description

PC8

PD1

GND

PC5

PB4

PC11

PC15

D5V

+3V3

PC10

GND

PC14

PC13

PD9

PA11

PD8

PC7

PA12

PC9

PD5

PD6

PC4

Table 27. Extension connector CN9

How to disconnect with function block on

STM32G081B-EVAL board

LED3

GPIO_JOY_RIGHT

USART_1_RTS

GPIO_SD_DETECT

LED1

LED2

USART_1_TX

-

VCP_USART_3_TX

OSC32_IN

Button (Tamp, Wakeup2)

LED4

USART_1_CTS

-

GPIO_JOY_LEFT

GPIO_SD_CS

USART_1_RX

LCD/SD1_MISO

VCP_USART_3_RX

-

-

OSC32_OUT

Close SB11, Open SB14, SB34

Open SB40

Open SB16

Open SB8

Open SB36

Open SB35

Open JP10 pin1-2

-

Open SB5

Remove R43, Close SB18

Open SB42

Close SB10, Open SB13, SB33

Open SB28

-

Open SB39

Open SB9

Open JP8 pin1-2

Open SB12

Open JP7

-

-

Remove R44, Close SB19

5

7

1

3

9

11

13

15

Pin Description

PA7

PA5

PA13

PB8

PA0

PC2

PF1

PF0

Table 28. Extension connector CN10

How to disconnect with function block on

STM32G081B-EVAL board

LCD/SD1_MOSI

AUDIO_OUT_DAC1_OUT2

SWDIO

GPIO_LCD_CS

JOY_SEL_TAMP_WKUP1

GPIO_JOY_UP

OSC_OUT

OSC_IN

Open SB24

Open JP6 pin2-3

Open SB4, Remove R48

Open SB27

Open SB38

Open SB41

Remove R46, Close SB21

Remove R45, Close SB20

UM2403 Rev 2

37/79

78

Connectors UM2403

4

12

14

16

18

6

8

10

20

22

17

19

21

2

Pin Description

GND

PA14-BOOT

VDD

PB2

PA6

PA4

PB3

GND

PC0

PC3

PC12

PF2-NRST

PF3-VBAT

PF4-VREF+

Table 28. Extension connector CN10 (continued)

How to disconnect with function block on

STM32G081B-EVAL board

-

-

SWCLK || BOOT0

-

-

Open JP9 pin1-2

POTENTIOMETER_ADC_IN10 Open SB43

AUDIO_IN_ADC_IN6/

MC_CurrentB

AUDIO_OUT_DAC1_OUT1

Open JP4, Keep CN1 disconnected

Open JP6 pin1-2, JP19

-

LCD/SD1_SCK

GPIO_EXT_RST

GPIO_JOY_DOWN

GPIO_LCD/SD_MOSI_DIR

RESET

VBAT

VREF+

-

Open SB25

Remove R12, Keep CN2 disconnected

Open SB37

Open SB26

Open SB23

Open JP15

Open SB17, SB22

7.1.8 RS232 and RS485 connector CN11

Figure 14. RS232 and RS485 connector CN11 (front view)

38/79

-36

1

2

3

Pin number

Table 29. RS232 & RS485 connector CN11

Description

Pin number

Description

NC

RS232_RX

(PC5 or PA10)

RS232_TX

(PC4 or PA9)

6

7

8

Bootloader_BOOT0

RS232_RTS(PA12)

RS232_CTS(PA11) / Bootloader_RESET

UM2403 Rev 2

UM2403

7.1.9

4

5

Pin number

Table 29. RS232 & RS485 connector CN11 (continued)

Description

Pin number

Description

RS485_A

GND -

9

-

RS485_B

Standard SWD connector CN12

Figure 15. Standard SWD debugging connector CN12 (top view)

Connectors

9

11

13

15

5

7

1

3

17

19

Pin number

D^ϯϬϳϮϮsϮ

Table 30. Standard SWD debugging connector CN12

Description

Pin number

Description

VDD

NC

NC

SWDAT(PA13)

SWCLK(PA14)

10K pull-down

NC

RESET#

10K pull-down

10K pull-down

10

12

14

16

6

8

2

4

18

20

VDD

GND

GND

GND

GND

GND

GND

GND

GND

GND

UM2403 Rev 2

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78

Connectors

Figure 16. High density SWD debugging connector CN13 (top view)

UM2403

5

7

1

3

9

Pin number

Table 31. High density SWD debugging connector CN13

Description

Pin number

Description

VDD

GND

GND

KEY

GND

6

8

2

4

10

SWDAT(PA13)

SWCLK(PA14)

NC

NC

RESET#

06Y9

7.1.11 TFT LCD connector CN14

A TFT color LCD board is mounted on CN14. Please refer to Section 1.6.7 for detail.

A 3.5mm Stereo audio jack CN15 connected to audio DAC and ADC is available on

STM32G081B-EVAL board.

STM32G081B-EVAL Evaluation mother board can be powered from a DC 5V power supply

via the external power supply jack (CN16) shown in Figure 17 . The central pin of CN16 must

be positive.

Figure 17. Power-supply connector CN16 (front view)

'&9

*1'

-36

40/79

UM2403 Rev 2

UM2403

7.1.14 Analog input connector CN17

Figure 18. Analog input-output connector CN17 (top view)

Connectors

1

Pin number

Table 32. Analog input-output connector CN17

Description

Pin number

Description

Analog input-output PB2 2 GND

06Y9

7.2.1 HDMI sink connector CN1

Figure 19. HDMI sink connector CN1 (front view)

Pin number

1,3,4,6,7,9,10,12

13

14

15

Table 33. HDMI sink connector CN1

Description Pin number

TMDS differential signal pair connected to CN3

CEC (PB10)

NC

I2C2_SCL (PB13)

16

2,5,8,11,17

18

19

Description

I2C2_SDA (PB14)

GND

HDMI_5V_Sink

HPD (PD2 through transistor)

UM2403 Rev 2

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78

Connectors

7.2.2 Smartcard connector CN2

Figure 20. Smartcard connector CN2 (top view)

UM2403

3

4

1

2

17

Pin number

Table 34. Smartcard connector CN2

Description

Pin number

VCC

RST

CLK

NC

Card presence detection pin

7

8

5

6

18

Description

GND

NC

I/O

NC

Card presence detection pin

06Y9

42/79

UM2403 Rev 2

UM2403

7.2.3 HDMI source connector CN3

Figure 21. HDMI source connector CN3 (front view)

Connectors

Pin number

1,3,4,6,7,9,10,12

13

14

15

Table 35. HDMI source connector CN3

Description Pin number

TMDS differential signal pair connected to CN1

CEC (PB10)

16

2,5,8,11,17

Description

I2C1_SDA (PB7)

NC

I2C1_SCL (PB6)

18

19

GND

HDMI_5V_Source from power switch U3

HPD (PD3)

Two female connectors CN4 and CN5 are used to implement the legacy peripheral daughterboard on the mother board. CN4 on legacy daughterboard is connected to CN5 on mother board, and CN5 on legacy daughterboard is connected to CN4 on mother board.

Please refer to

Section 7.1.3

for detail signal definition of these connectors.

7.3.1 USB Type A connector CN1

Figure 22. USB Type A connector CN1 (front view)

1

2

Pin number

Table 36. USB Type A connector CN1

Description Pin number

VBUS (power)

D-

3

4

D+

GND

Description

UM2403 Rev 2

43/79

78

Connectors

7.3.2 DisplayPort source connector CN2

Figure 23. DisplayPort source connector CN2 (front view)

UM2403

7.3.3

Pin number

10

12

7

9

4

6

1

3

Table 37. DisplayPort source connector CN2

Description Pin number Description

LANE0_P

LANE0_N

LANE1_P

LANE1_N

LANE2_P

LANE2_N

LANE3_P

LANE3_N

13

14

15

17

18

19

20

2,5,8,11,16

CONFIG1

CONFIG2

AUX_CH_P

AUX_CH_N

HPD (PC6)

RETURN

DP_PWR

GND

19 V Power connector CN3

The UCPD daughterboard can be powered from a DC 19 V power supply via the external power supply jack (CN3) shown in

Figure 24

. And it is used for USB PD.

Figure 24. 19 V Power connector CN3 (front view)

44/79

UM2403 Rev 2

UM2403

7.3.4 USB3.1 Gen1 Type B connector CN4

Figure 25. USB3.1 Gen1 Type B connector CN4 (front view)

Connectors

7.3.5

Pin number

1

2

3

-

4

Table 38. USB3.1 Gen1 Type B connector CN4

Description Pin number Description

VBUS (power)

D-

D+

-

GND

5

6

7

8

9

SSTX-

SSTX+

GND_DRAIN

SSRX-

SSRX+

USB Type-C connector PORT2 CN5

Figure 26. USB Type-C connector PORT2 CN5 (front view)

A5

A6

A7

A1

A2

A3

A4

Pin number

Table 39. USB Type-C connector PORT2 CN5

Description Pin number Description

GND

TX1+

TX1-

VBUS

CC1 (PD0)

D+

D-

B5

B6

B7

B1

B2

B3

B4

GND

TX2+

TX2-

VBUS

CC2 (PD2)

D+

D-

UM2403 Rev 2

45/79

78

Connectors

A8

A9

A10

A11

A12

Pin number

Table 39. USB Type-C connector PORT2 CN5 (continued)

Description Pin number Description

SBU1

VBUS

RX2-

RX2+

GND

B8

B9

B10

B11

B12

SBU2

VBUS

RX1-

RX1+

GND

7.3.6 Display sink connector CN6

Figure 27. DisplayPort sink connector CN6 (front view)

UM2403

6

7

9

10

12

1

3

4

Pin number

Table 40. DisplayPort sink connector CN6

Description Pin number Description

LANE3_N

LANE3_P

LANE2_N

LANE2_P

LANE1_N

LANE1_P

LANE0_N

LANE0_P

13

14

15

17

18

19

20

2,5,8,11,16

CONFIG1

CONFIG2

AUX_CH_P

AUX_CH_N

HPD (PB5)

RETURN

DP_PWR

GND

46/79

UM2403 Rev 2

UM2403

7.3.7 USB Type-C connector PORT1 CN7

Figure 28. USB Type-C connector PORT1 CN7 (front view)

Connectors

A4

A5

A6

A7

A1

A2

A3

A8

A9

A10

A11

A12

Pin number

GND

TX1+

TX1-

VBUS

CC1 (PA8)

D+

D-

SBU1

VBUS

RX2-

RX2+

GND

Table 41. USB Type-C connector PORT1 CN7

Description Pin number

B4

B5

B6

B7

B1

B2

B3

B8

B9

B10

B11

B12

GND

TX2+

TX2-

VBUS

CC2 (PB15)

D+

D-

SBU2

VBUS

RX1-

RX1+

GND

Description

Two female connectors CN8 and CN9 are used to implement the UCPD daughterboard on mother board. CN8 on UCPD the daughterboard is connected to CN5 on the mother board, and CN9 on the UCPD daughterboard is connected to CN4 on the mother board. Please refer to

Section 7.1.3

for detail signal definition of these connectors.

UM2403 Rev 2

47/79

78

Electrical schematics

Appendix A Electrical schematics

UM2403

This chapter provides design schematics for the STM32G081B-EVAL key features to help users to implement these features in application designs:

•

Figure 29: STM32G081B-EVAL mother board top on page 49

•

Figure 30: STM32G081B-EVAL MCU on page 50

•

Figure 31: STM32G081B-EVAL power on page 51

•

Figure 32: STM32G081B-EVAL audio on page 52

•

Figure 33: STM32G081B-EVAL LCD microSD on page 53

•

Figure 34: STM32G081B-EVAL motor-control on page 54

•

Figure 35: STM32G081B-EVAL peripherals on page 55

•

Figure 36: STM32G081B-EVAL RS232 and RS485 on page 56

•

Figure 37: STM32G081B-EVAL extension connectors on page 57

•

Figure 38: STM32G081B-EVAL ST-LINK V2-1 on page 58

•

Figure 39: STM32G081B-EVAL SWD on page 59

•

Figure 40: STM32G081B-EVAL legacy peripheral daughterboard on page 60

•

Figure 41: STM32G081B-EVAL legacy peripheral daughterboard HDMI and CEC on page 61

•

Figure 42: STM32G081B-EVAL legacy peripheral daughterboard Smartcard and IR on page 62

•

Figure 43: STM32G081B-EVAL legacy peripheral daughterboard temperature sensor and LDR on page 63

•

Figure 44: STM32G081B-EVAL UCPD daughterboard top on page 64

•

Figure 45: STM32G081B-EVAL UCPD daughterboard CC and VCONN on page 65

•

Figure 46: STM32G081B-EVAL UCPD daughterboard port1 DP USB3 on page 66

•

Figure 47: STM32G081B-EVAL UCPD daughterboard Type-C source con on page 67

•

Figure 48: STM32G081B-EVAL UCPD daughterboard port2 DP on page 68Figure 49:

STM32G081B-EVAL UCPD daughterboard Type-C sink con on page 69

•

Figure 49: STM32G081B-EVAL UCPD daughterboard Type-C sink con on page 69

•

Figure 50: STM32G081B-EVAL UCPD daughterboard USB PD on page 70

•

Figure 51: STM32G081B-EVAL UCPD daughterboard power on page 71

•

Figure 52: STM32G081B-EVAL UCPD daughterboard source power on page 72

48/79

UM2403 Rev 2

Figure 29. STM32G081B-EVAL mother board top

U_Extension connectors

Extension connectors.SchDoc

PA[0..15]

PB[0..15]

PC[0..15]

PD[0..6]

PD[8..9]

PF[0..4]

RESET#

U_Audio

Audio.SchDoc

Audio_OUT_L

Audio_OUT_R

Audio_IN

U_LCD_MicroSD

LCD_MicroSD.SchDoc

SPI1_SCK

SPI1_MOSI

SPI1_MOSI_DIR

SPI1_MISO_3V3

MicroSD_CS_3V3

LCD_CS_3V3

SDcard_detect

RESET#

U_SWD

SWD.SchDoc

SWCLK

SWDAT

RESET#

U_ST_LINK_V2-1

ST_LINK_V2-1.SCHDOC

RESET#

TCK/SWCLK

TMS/SWDIO

T_SWDIO_IN

STLK_RX

STLK_TX

U_Power

Power.SchDoc

24Mhz clock

1Mhz clock

U_MCU

MCU.SchDoc

PA[0..15]

PB[0..15]

PC[0..15]

PD[0..6]

PD[8..9]

PF[0..4]

Audio_OUT_L

Audio_OUT_R

Audio_IN

SPI1_SCK

SPI1_MOSI

SPI1_MOSI_DIR

SPI1_MISO

MicroSD_CS_OD

LCD_CS_OD

SDcard_detect

RESET#

SWCLK

SWDAT

MC_PFCsync1

MC_PFCsync2

MC_UL

MC_UH

MC_VL

MC_VH

MC_WL

MC_WH

MC_NTC

MC_DissipativeBrake

MC_PFCpwm

MC_EmergencySTOP

MC_CurrentA

MC_CurrentB

MC_CurrentC

MC_EnA

MC_EnB

MC_EnIndex

MC_HeatsinkTemperature

MC_BusVoltage

USART1_RX

USART1_RX_BOOT

USART1_TX

USART1_TX_BOOT

USART1_RTS

USART1_CTS

Bootloader_BOOT0

Bootloader_RESET

VCP_TX

VCP_RX

VREF+

Potentiometer

Tamper_key

JOY_SEL

JOY_UP

JOY_DOWN

JOY_LEFT

JOY_RIGHT

LED1

LED2

LED3

LED4

I2C1_SCL

I2C1_SDA

EX_RESET_OD

+3V3

3

4

1

2

U1

C14

100nF

C12

100nF

VccA

A1

A2

GND

VccB

B1

B2

DIR

8

7

6

5

SN74LVC2T45DCUT

VDD

R13

100K

VDD

U_Motor Control

Motor Control.SchDoc

MC_PFCsync1

MC_PFCsync2

MC_UL

MC_UH

MC_VL

MC_VH

MC_WL

MC_WH

MC_NTC

MC_DissipativeBrake

MC_PFCpwm

MC_EmergencySTOP

MC_CurrentA

MC_CurrentB

MC_CurrentC

MC_EnA

MC_EnB

MC_EnIndex

MC_HeatsinkTemperature

MC_BusVoltage

U_RS232_RS485

RS232_RS485.SchDoc

USART1_RX_3V3

USART1_RX_BOOT_3V3

USART1_TX

USART1_TX_BOOT

USART1_RTS

USART1_CTS_3V3

Bootloader_BOOT0_3V3

Bootloader_RESET_3V3

U_Peripherals

Peripherals.SchDoc

Potentiometer

Tamper_key

JOY_SEL

JOY_UP

JOY_DOWN

JOY_LEFT

JOY_RIGHT

LED1

LED2

LED3

LED4

I2C1_SCL

I2C1_SDA

EX_RESET

Title: MB1350_TOP

Project: STM32G081B-EVAL Mother board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1350

Size: A4 Date: 31-AUG-17 Sheet: 2 of 12

Figure 30. STM32G081B-EVAL MCU

SWCLK

Bootloader_BOOT0

Audio_IN

MC_CurrentB

USART1_TX_BOOT

MC_VH

MC_WH

USART1_RX_BOOT

1

JOY_SEL

MC_BusVoltage

MC_CurrentA

MC_HeatsinkTemperature

Audio_OUT_L

Audio_OUT_R

SPI1_MOSI

MC_UH

USART1_CTS

USART1_RTS

SWDAT

D4

BAT60JFILM

3

2

PA0

PA1

PA2

PA3

PA4

PA5

PA6

PA7

PA8

PA9

PA10

PA11

PA12

PA13

PA14

PA15

42

43

44

45

23

24

36

37

46

47

17

18

19

20

21

22

U7

PA0

PA1

PA2

PA3

PA4

PA5

PA6

PA7

PA8

PA9

PA10

PA11 [PA9]

PA12 [PA10]

PA13

PA14 - BOOT0

PA15

PC0

PC1

PC2

PC3

PC4

PC5

PC6

PC7

PC8

PC9

PC10

PC11

PC12

PC13

PC14 - OSC32_IN

PC15 - OSC32_OUT

13

14

15

16

25

26

38

39

48

49

64

1

2

3

4

5

PC0

PC1

PC2

PC3

PC4

PC5

PC6

PC7

PC8

PC9

PC10

PC11

PC12

PC13

PC14

PC15

EX_RESET_OD

MC_PFCsync1

JOY_UP

JOY_DOWN

USART1_TX

USART1_RX

MC_EnA

JOY_RIGHT

JOY_LEFT

SDcard_detect

VCP_TX

VCP_RX

SPI1_MOSI_DIR

Tamper_key

R43

0

C34

JP9

MC_EnIndex

MC_PFCpwm

Potentiometer

SPI1_SCK

PB3 R38

SPI1_MISO

MC_EnB

I2C1_SCL

I2C1_SDA

LCD_CS_OD

MC_NTC

MC_CurrentC

DB_DET

MC_EmergencySTOP

VDD

MC_DissipativeBrake

R84 0

JP11

PB0

PB1

PB2

0

PB4

PB5

PB6

PB7

PB8

PB9

PB10

PB11

PB12

PB13

PB14

PB15

VDD_MCU

30

31

32

33

34

35

60

61

62

63

27

28

29

57

58

59

8

9

PB0

PB1

PB2

PB3

PB4

PB5

PB6

PB7

PB8

PB9

PB10

PB11

PB12

PB13

PB14

PB15

PD0

PD1

PD2

PD3

PD4

PD5

PD6

PD8[VSS_2]

PD9[VDD_2]

PF0 - OSC_IN

PF1 - OSC_OUT

PF2 - NRST

40

41

10

11

12

6

PF3 - VBAT

VDD_1

VSS_1

STM32G0

PF4 - VREF+

7

SB17

L1

VREF+

VREF+

VDD

BEAD(FCM1608KF-601T03) SB22

50

51

52

53

54

55

56

BT1

CR1220 holder

3

PD0

PD1

PD2

PD3

PD4

PD5

PD6

SB14

SB13

SB11

SB10

PF0

PF1

PF2

MC_PFCsync2

MicroSD_CS_OD

MC_UL

MC_VL

MC_WL

LED1

LED2

PF3

PF4

TP4

VREF+

C38

10nF

PD8

PD9

VDD_MCU

LED3

LED4

SB23

RESET#

R45

0

R46

0

R44

0

2

B1

X3

X2

C36

3.9pF

4.7pF

NX3215SA-32.768KHZ-EXS00A-MU00525

C35

NX3225GD-8.000M-EXS00A-CG04874

C37

3.9pF

1

4.7pF

3 4

TD-0341 [RESET/Black]

PA[0..15]

PA[0..15]

PB[0..15]

PB[0..15]

PC[0..15]

PC[0..15]

PD[0..6]

PD[0..6]

PD[8..9]

PD[8..9]

PF[0..4]

PF[0..4]

2 C88

1

VDD

100nF

D5

JP15

JP12

Bootloader_RESET RESET#

BAT60JFILM

VDD_MCU VREF+

C32

100nF

C33

100nF

C31

4.7uF

C39

1uF

Title: MCU

Project: STM32G081B-EVAL Mother board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1350

Size: A4 Date: 31-AUG-17 Sheet: 3 of 12

Figure 31. STM32G081B-EVAL power

CN16

DC-10B

1

2

3

VUSB_ST_LINK

+3V3

VDD_ADJ

E5V

D5V

U5V_ST_LINK

1

U18

ZEN056V130A24LS

3

4

2

8

6

3

1

7

5

Header 4X2

1

3

2

TP5

VDD

VDD

JP13

JP16

VDD_ANA

JP17

D7

ESDA7P60-1U1M

+5V

C79

100nF

TP10

5V

1

2

1K

L2

SV

R71

CV

SG CG1

CG2

CG3

BNX002-01

1

LD7 green

3

4

5

6

2

TP11

Ground

TP3

Ground

TP1

Ground

TP12

Ground

C70

220uF

E5V

+3V3_PG R80

+5V

[N/A]

C62

[N/A]

+5V

C72

4.7uF

6

U16

ST1L05BPUR

VI

1

EN

PG

VO

ADJ

3

4

5

R91

[N/A]

+3V3_PG

+5V

R88

C67

20.5K[1%]

[N/A]

R87

C64

100nF

11.8K[1%]

TP7

+3V3

+3V3

Power Supply 3.3V

Vout=1.22*(1+R1/R2)

C71

10uF[ESR<0.2ohm]

C57

4.7uF

6

U14

ST1L05BPUR

VI

1

EN

PG

VO

ADJ

3

4

5

R64

11.8K[1%]

+5V

R79

[N/A]

VDD_PG

TP6

VDD_ADJ

VDD_ADJ

R65

22.1K[1%]

Power Supply VDD_ADJ [1.65V to 3.5V] considering potentiometer error tolerance

Vout=1.22*(1+R1/R2)

C53

[N/A]

RV2

2 3386P-503H[5%]

C55

100nF

C56

10uF[ESR<0.2ohm]

+3V3_PG R115 0

+5V

C93

[N/A]

C92

4.7uF

6

U21

ST1L05BPUR

VI

1

EN

3

R114

[N/A]

+5V

+3V3_SD_PG

PG

VO

ADJ

4

5 R116 20.5K[1%]

R117

C94

[N/A]

11.8K[1%]

C96

100nF

TP13

+3V3_SD

+3V3_SD

Power Supply 3.3V

Vout=1.22*(1+R1/R2)

C95

10uF[ESR<0.2ohm]

+3V3

SB46

SB47

+3V3_SD

Title: Power

Project: STM32G081B-EVAL Mother board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1350

Size: A4 Date: 31-AUG-17 Sheet: 4 of 12

Figure 32. STM32G081B-EVAL audio

Audio_OUT_L

PA4

Audio_OUT_R

PA5

JP6

1

2

3

JP19

VDD_ANA

Default setting: close

JP18 R108

10K

C65

[N/A]

C66 R89

20K

330nF

R93

0

C78

[N/A]

C80 R95

20K

330nF

VDD_ANA>2.2V

C73

1.5nF

R90

4.7K

6

3

7

4

U17

Shutdown

VIN1

VIN2

Bypass

VOUT1

VOUT2

VCC

GND

2

8

1

5

9

TS488IQT

C69

1uF

C76

1.5nF

R94

4.7K

C68

220uF R86

1K

VDD_ANA

C75

1uF

C74

100nF

C77

220uF R92

1K

Left

Right

Microphone

3

6

CN15

4

2

PJ3028B-3

D6

ESDA6V1BC6

VDD_ANA

VDD_ANA>2.7V

C61

R74

1K

10uF

R72

100

R73

2.2K

C54

47pF

C51

TP8

MIC+

100nF

VDD_ANA

C59

4.7uF

R66

100K

R67

15K

R69

100K

R68

18K

C60

2.2uF

R70

680

C58

4.7uF

RV1

[N/A]

2

C50 VDD_ANA

100nF

3

4

1

U12

TS461CLT

R62 0

TP9

MIC_OUT

R61

510

C46

[N/A]

C47

180pF

R59 82K

JP4

PA6

Audio_IN

Title: Audio

Project: STM32G081B-EVAL Mother board

Variant: [No Variations]

Revision: Reference:

Size: A4 Date: 31-AUG-17 Sheet: 5

MB1350 of 12

Figure 33. STM32G081B-EVAL LCD microSD

SDcard_detect

PC9

SB12

PB4

SPI1_MISO_3V3

MicroSD_CS_3V3

Open drain pin!

PD1

SPI1_SCK_3V3

SPI1_MOSI_3V3

SB9 R34

10K

+3V3_SD

SPI1_MOSI

PA7

R56

VDD

SPI1_MOSI_DIR

PC12

SB24

10K

C40

100nF

SB26

VDD

3

4

1

2

U10

VCCA

A1

A2

GND

VCCB

B1

B2

DIR

SN74LVC2T45DCUT

C42

+3V3_SD 100nF

8

7

6

5

SPI1_MOSI_3V3

SPI1_SCK

PB3

C43

100nF

SB25

R57

100K

VDD

1

2

3

4

U11

VCCA

A1

A2

GND

VCCB

B1

B2

DIR

SN74LVC2T45DCUT VDD

C41

+3V3_SD 100nF

8

7

6

5

SPI1_SCK_3V3

VDD

SB8

6

5

4

3

8

7

2

1

U6

DAT1_IN

DAT0_IN

CLK_IN

CMD_IN

DAT3_IN

DAT2_IN

RDAT3_GND

WP/CD

EMIF06-MSD02N16

DAT1_EX

DAT0_EX

CLK_EX

CMD_EX

DAT3_EX

DAT2_EX

VCC

RDATA_VCC

9

10

11

12

13

14

15

16

SB15

+3V3_SD

+3V3_SD

6

5

4

3

8

7

2

1

CN8

RVS

DO

Vss

SCLK

Vdd

DI

CS

RVS

SW1

SW2

10

9

PJS008-2000 (SMS064FF or SMS128FF)

SPI MICRO SD

R78

10K

+3V3_SD

Open drain pin!

LCD_CS_3V3

PB8

RESET#

SB27

R60

10K

2

VDD

T2

+3V3_SD

BSN20

G R75

4.7K

3

S D

+5V

+3V3_SD

R96 0

R100 [N/A]

L3

BEAD

L4

BEAD

R63

270

R76 270

C82

10uF

C81

100nF

+3V3_SD

7

8

5

6

3

4

1

2

CN14

2.4" LCD connector (MB895C)

CS

SCL

SDI

RS

WR

RD

SDO

RESET

9

10

11

12

13

14

15

16

VDD

VCI

GND

GND

BL_VDD

BL_Control

BL_GND

BL_GND

TFT LCD

SPI LCD

Title: LCD_MicroSD

Project: STM32G081B-EVAL Mother board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1350

Size: A4 Date: 31-AUG-17 Sheet: 6 of 12

Figure 34. STM32G081B-EVAL motor-control

+3V3

MC_EmergencySTOP

JP3

PB12

Default setting: Open

R1

3.3K

C5

1nF

R2

0

MC_CurrentA

MC_CurrentB

MC_CurrentC

PA2

R6 0

C9

[N/A]

PA6

R5 0

C8

[N/A]

PB10

R4 0

C7

[N/A]

MC_PFCsync2

MC_PFCsync1

PD0

PC1

SB2

C4

[N/A]

MC_UH

MC_UL

MC_VH

MC_VL

MC_WH

MC_WL

PA8

PD2

PA9

PD3

PA10

PD4

MC_NTC

MC_DissipativeBrake

MC_PFCpwm

MC_EnA

MC_EnB

PB9

PB15

+5V

PB1

PC6

PB5

SB1

C11

10nF

Motor control connector

17

19

21

23

25

27

29

9

11

13

15

5

7

1

3

31

33

CN1

EMERGENCY STOP

MC-UH

MC_UL

MC_VH

MC_VL

MC_WH

MC_WL

CURRENT A

CURRENT B

CURRENT C

NTC BYPASS RELAY

DISSIPATIVE BRAKE

+5V POWER

PFC SYNC

PFC PWM

Encoder A

Encoder B

MC_connector

GND

GND

GND

GND

GND

GND

BUS VOLTAGE

GND

GND

GND

GND

GND

Heatsink Temperature

3.3V Power

GND

GND

Encoder Index

18

20

22

24

26

28

30

10

12

14

16

6

8

2

4

32

34

R7

0

+3V3

R3

0

C10

100nF

R8

100K

JP1

PA1

MC_BusVoltage

Default setting: Open

JP2

PA3

C6

100nF

Default setting: Open

MC_HeatsinkTemperature

C3

[N/A]

PB0

MC_EnIndex

C1

[N/A]

C2

[N/A]

Title: Motor Control

Project: STM32G081B-EVAL Mother board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1350

Size: A4 Date: 31-AUG-17 Sheet: 7 of 12

Potentiometer two pin header for external analog input

CN17

PB2

SB43

R112 47 R113 0

VDD_ANA

2 RV3

10K R111 0

C90

[N/A]

C91

100nF

Close to MCU on PCB

Figure 35. STM32G081B-EVAL peripherals

+3V3

LD1

Green

1 2

LD2

Orange

1 2

LD3

Red

1 2

LD4

Blue

1 2

R104

510

R103

680

R102

680

R101

680

SB36

SB35

SB34

SB33

PD5

LED1

PD6

LED2

PD8

LED3

PD9

LED4

Tamper_key

PC13

SB42

VDD

R109

4.7K

LEDs

VDD<2.7V

IOs and some Analog IPs will work with degraded performances

+3V3

+3V3

R99

1K[1%]

R97

4.53K[1%]

R98

0

VDD U19A

3

2

TS3702IPT

+3V3

1

R83

510

LD8

Orange

Potentiometer

D9

ESDALC6V1-1U2

B2

Tamper C89

100nF

R110

100

Tamper Button

VDD

R107 0

R105 0

5

U19B

6

TS3702IPT

7

Low Voltage LED

JOY_SEL

JOY_DOWN

JOY_LEFT

JOY_RIGHT

JOY_UP

PA0

PC3

PC8

PC7

PC2

Input pins with pull-down

SB38

SB37

SB39

SB40

SB41

VDD

R106

100

5

B3

COMMON

2

Selection

4

6

3

1

DOWN

LEFT

RIGHT

UP

MT-008A

D8

ESDA6V1-5SC6

GND

GND

7

8

I2C_PU EXT_I2C_PWR

I2C1_SDA

I2C1_SCL

PB7

PB6

EXT_I2C_PWR

R10

10K

R9

10K

CN2

5

7

1

3

R12

10K

6

8

2

4

F206A-2*04MGF-A

SSM-104-L-DH (Samtec)

PC0

EX_RESET

Open drain pin!

I2C extension connector

Joystick

Title: Peripherals

Project: STM32G081B-EVAL Mother board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1350

Size: A4 Date: 31-AUG-17 Sheet: 8 of 12

Figure 36. STM32G081B-EVAL RS232 and RS485

USART1_RTS_3V3

Bootloader_BOOT0_3V3

Bootloader_RESET_3V3

USART1_CTS_3V3

PA11

SB28

+3V3

100nF

C49

C45

100nF

28

24

1

2

U13

C1+

C1-

C2+

C2-

14

13

12

T1IN

T2IN

T3IN

VCC

GND

V+

V-

T1OUT

T2OUT

T3OUT

21

20

19

18

17

16

15

R1OUTB

R2OUTB

R1OUT

R2OUT

R3OUT

R4OUT

R5OUT

R1IN

R2IN

R3IN

R4IN

R5IN

23 nEN

ST3241EBPR nSHDN

26

25

27

3

9

10

11

6

7

4

5

8

22

+3V3

C48

100nF

C44

100nF

C52

100nF

USART1_TX_3V3

PC5 1

USART1_RX_3V3

USART1_RX_BOOT_3V3

PA10 3

JP8

2

1

2

3

JP14

DSR

RXD

RTS

TXD

CTS

4

9

3

8

5

2

7

1

6

CN11

DB9-male USART1

USART1_RTS_3V3

RS485_DIR connector for USART1 & RS485

R81

10K

3

4

1

2

U15

RO

RE

DE

DI

Vcc

B

A

GND

ST3485EBDR

C63

6

5

+3V3

8

R77 22K

7

R85 22K

R82

120

100nF

SB30

SB29

SB31

SB32

USART1_TX_BOOT

USART1_TX

PC4

USART1_RTS

PA12

PA9

SB16

3

1

2

JP10

R40

100K

VDD

C29

100nF

R42

100K

VDD

1

2

3

4

U8

VCCA

A1

A2

GND

VCCB

B1

B2

DIR

+3V3

8

7

6

5

SN74LVC2T45DCUT VDD

C30

100nF

USART1_TX_3V3

USART1_RTS_3V3

RS485_DIR

Title: RS232_RS485

Project: STM32G081B-EVAL Mother board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1350

Size: A4 Date: 31-AUG-17 Sheet: 9 of 12

PA[0..15]

PA[0..15]

PB[0..15]

PB[0..15]

PC[0..15]

PC[0..15]

PD[0..6]

PD[0..6]

PD[8..9]

PD[8..9]

PF[0..4]

PF[0..4]

Figure 37. STM32G081B-EVAL extension connectors

Daugher board connectors

CN4

12

13

14

15

10

11

8

9

16

17

18

5

6

7

3

4

1

2

Header 18X1

PA1

PA15

PB6

PB7

R11

PC6

PB13

PB14

PB1

PB10

PA3

PB12

820

PB11

RESET#

+3V3

R26

VDD_ANA

I2C_PU

VDD

10K

USB-C daugher board signal Legacy daugher board signal

V_CTRL2

USB3_DET

I2C1_SCL

I2C1_SDA

LDR_OUT

SMART_RST

I2C1_SCL

I2C1_SDA

RESET(Mother board)

HPD_SOURCE

DISCHARGE_1

DISCHARGE_2

VSENSE_1

ISENSE_1

VSENSE_2

ISENSE_2

DB_DET

RESET(Mother board)

IR_IN

I2C2_SCL

I2C2_SDA

HDMI_CEC

SMART_1V8

SMART_OFF

DB_DET

Legacy daugher board signal USB-C daugher board signal

SMART_3/5V

SMART_CK

IR_OUT

SMART_TX

SMART_CMDVCC

TEMP_SENSOR_INT

HDMI_HPD_SINK

HDMI_HPD_SOURCE

PORT1_CC1

PORT1_CC2

PORT1_DB1

PORT1_DB2

VCONN_EN1

VCONN_EN2

FRS_TX1

FRS_TX2

+5V

HPDIN

V_CTRL1

PORT2_CC1

PORT2_CC2

SOURCE_EN

D5V

EXT_I2C_PWR

VDD

Note: If no daugher board on CN4 & CN5, close pin17 &18 of CN4 & CN5 by jumpers when using I2C extension connector CN2

PA8

PB15

PA9

PA10

PD4

PB9

PA2

PB0

PB5

PC1

PD0

PD2

PD3

CN5

12

13

14

15

8

9

10

11

16

17

18

5

6

7

3

4

1

2

Header 18X1

PC14

PC13

SB18

R47 820

PD8

PC7

PA12

PC9

PD5

PD6

PC4

PC10

CN9

5

7

1

3

9 10

2

4

6

8

11 12

13 14

15 16

17 18

19 20

21 22

Header 11X2

PD9

PA11

PC8

PD1

PC5

PB4

PC11

SB19

D5V

+3V3

PC15

Extension connectors

PF1

PF0

SB21

SB20

BOOT0 PA14 R39

VDD

10K

PA7

PA5

PA13

PB8

PA0

PC2

CN10

5

7

1

3

9 10

2

4

6

8

11 12

13 14

15 16

17 18

19 20

21 22

Header 11X2

PB2

PA6

PA4

PB3

PC0

PC3

PC12

R41

SB44

SB45

820 PF2

PF3

PF4

Title: Extension connectors

Project: STM32G081B-EVAL Mother board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1350

Size: A4 Date: 31-AUG-17 Sheet: 10 of 12

Figure 38. STM32G081B-EVAL ST-LINK V2-1

+3V3_ST_LINK

+5V

C20

100nF

C13

100nF

C15

100nF

C21

100nF

+3V3_ST_LINK

D1

R28

BAT60JFILM

2.7K

JP5

R27

4.7K

R23

100K

+3V3_ST_LINK

Board Ident: PC13=0 U2

STM32F103CBT6

E5V

D5V

VUSB_ST_LINK

D10

BAT60JFILM

D3

BAT60JFILM

D2

BAT60JFILM

PWR

C26

1uF_X5R_0603

3

1

U4

Vin

EN

GND

LDK120M33R

5

Vout

BYPASS

C27

100nF

+3V3_ST_LINK

C23

1uF_X5R_0603

C24

10nF_X7R_0603

C22

100nF

U4 can be replaced by LD3985M33R

SB6

C18

10pF

1

X1

2

C19

10pF R25

[N/A]

R24

10K

+3V3_ST_LINK

R17

100K

NX3225GD-8.000M-EXS00A-CG04874

SWIM_PU_CTRL

OSC_IN

OSC_OUT

STM_RST

+3V3_ST_LINK

C16

100nF

VDD

R14

R15

4.7K

4.7K

AIN_1

7

8

5

6

3

4

1

2

9

10

11

12

VBAT

PC13

PC14

PC15

OSCIN

OSCOUT

NRST

VSSA

VDDA

PA0

PA1

PA2

VDD_2

VSS_2

JTMS/SWDIO

PA12

PA11

PA10

PA9

PA8

PB15

PB14

PB13

PB12

+3V3_ST_LINK

32

31

30

29

36

35

34

33

28

27

26

25

STM_JTMS_SWDIO

STL_USB_DP

STL_USB_DM

T_SWO

LED_STLINK

MCO

PWR_ENn

T_JTMS

T_JTCK

T_SWDIO_IN

VUSB_ST_LINK

C28

4.7uF

R32

10K

SB7

R33

R31

1K 1

100K Red

2

LD5

2

5

4

U5

GND

IN

EN

FAULT

OUT

STMPS2141STR

3

1

Power Switch to supply +5V from STLINK USB

U5V_ST_LINK

C25

100nF

STLK_TX

PC11

STLK_RX

PC10

JP7

SB3

TX

RX

CN3

[N/A]

STLINK_RX

USB ST-LINK

VUSB_ST_LINK

CN6

VBUS

DM

DP

ID

GND

3

4

1

2

5

R19

100K

Shield

Shield

Shield

Shield

EXP

EXP

8

9

6

7

10

11

1050170001

+3V3_ST_LINK LED_STLINK

COM

R35

100

R36

100

R16

100K

TP2

PB10

Red Yellow

LD6

HSMF-A201-A00J1

R37

0

+3V3_ST_LINK

Diff Pair 90ohm i

1

2

3

U3

I/O1

GND

I/O2 i

Diff Pair 90ohm

6

I/O1

Vbus

I/O2

5

4

USBLC6-2SC6

C17

100nF

STL_USB_DM

STL_USB_DP

VUSB_ST_LINK

VUSB_ST_LINK

+3V3_ST_LINK

R18

1.5K

T1

9013

1

R21

10K

R22

+3V3_ST_LINK

100

STM_JTMS_SWDIO

STM_JTCK_SWCLK

USB_RENUMn

CN7

1

3

5

[N/A]

2

4

SWD

R20

36K

T_SWDIO_IN

T_JTMS

T_NRST

T_JTCK

PA13

PA13

PA14

T_SWDIO_IN

TMS/SWDIO

RESET#

TCK/SWCLK

Title: ST_LINK_V2-1

Project: STM32G081B-EVAL Mother board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1350

Size: A4 Date: 31-AUG-17 Sheet: 11 of 12

SWDAT

SWCLK

RESET#

PA13

PA14

Figure 39. STM32G081B-EVAL SWD

VDD

R51

[N/A]

R49

[N/A]

R48

R50

R54

22

22

22

U9

ESDALC6V1W5

CN13

FTSH-105-01-L-DV

4

3

2

1

6

5

10

9

8

7

VDD

KEY

High Density SWD connector

CN12

SWD

14

15

16

17

18

19

20

10

11

12

13

8

9

6

7

3

4

1

2

5

VDD

R55

R58

10K

10K

VDD

R53

[N/A]

R52

10K

Standard SWD connector

Title: SWD

Project: STM32G081B-EVAL Mother board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1350

Size: A4 Date: 31-AUG-17 Sheet: 12 of 12

Figure 40. STM32G081B-EVAL legacy peripheral daughterboard

U_SmartCard_IR

SmartCard_IR.SchDoc

SmartCard_CLK

SmartCard_IO

SmartCard_CMDVCC

SmartCard_3/5V

SmartCard_1V8

SmartCard_RST

SmartCard_OFF

IR_IN

IR_OUT

U_TemSensor_LDR

TemSensor_LDR.SCHDOC

I2C1_SCL_5V

I2C1_SDA_5V

TempSensor_INT

LDR_OUT

SmartCard_CLK

SmartCard_IO

SmartCard_CMDVCC

SmartCard_3/5V

SmartCard_1V8

SmartCard_RST

SmartCard_OFF

IR_IN

IR_OUT

I2C1_SCL_5V

I2C1_SDA_5V

TempSensor_INT

LDR_OUT

HDMI_HPD_Source_5V

HDMI_HPD_SINK

HDMI_CEC_3V3

U_HDMI_CEC

HDMI_CEC.SchDoc

HDMI_HPD_Source_5V

HDMI_HPD_SINK

HDMI_CEC_3V3

I2C1_SCL_5V

I2C1_SDA_5V

I2C2_SCL_5V

I2C2_SDA_5V

I2C1_SCL_5V

I2C1_SDA_5V

I2C2_SCL_5V

I2C2_SDA_5V

Legacy daugher board signal

CN5

13

14

15

16

9

10

11

12

7

8

5

6

3

4

1

2

17

18

LDR_OUT

SmartCard_RST

I2C1_SCL_5V

I2C1_SDA_5V

IR_IN

I2C2_SCL_5V

I2C2_SDA_5V

HDMI_CEC_3V3

SmartCard_1V8

SmartCard_OFF

PA1

PA15

PB6

PB7

PC6

PB13

PB14

PB10

PA3

PB12

DB_DET

+3V3

R21

VDD_ANA

20K

Header 18X1_Female

VDD

+3V3

LDR_OUT

SMART_RST

I2C1_SCL

I2C1_SDA

RESET(Mother board)

IR_IN

I2C2_SCL

I2C2_SDA

HDMI_CEC

SMART_1V8

SMART_OFF

SMART_3/5V

SMART_CK

IR_OUT

SMART_TX

SMART_CMDVCC

HDMI_HPD_SINK

HDMI_HPD_SOURCE

RST_PU_POWER

PB15

+5V

PD4

PB9

PA2

PB0

PB5

PD2

PD3

SmartCard_3/5V

SmartCard_CLK

IR_OUT

SmartCard_IO

SmartCard_CMDVCC

TempSensor_INT

HDMI_HPD_SINK

HDMI_HPD_Source_5V

+5V

VDD

SB8

CN4

13

14

15

16

9

10

11

12

7

8

5

6

3

4

1

2

17

18

Header 18X1_Female

+5V

C4

100nF

+3V3 VDD_ANA VDD

C8

100nF

C10

100nF

C14

100nF

C13

100nF

Title: MB1351_TOP

Project: STM32G081B-EVAL Legacy peripheral daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1351

Size: A4 Date: 17-MAY-17 Sheet: 2 of 5

Figure 41. STM32G081B-EVAL legacy peripheral daughterboard HDMI and CEC

Sink

HDMI_5V_Sink

CN1

HD119F-3A09200

R8

1K

HDMI_5V_Sink

1 T1

9012

R20

1K

PD2

HDMI_HPD_SINK

FT pin & Open Drain mode needed

R7

1K

R9

47K

R10

47K

13

14

15

16

9

10

11

12

17

18

7

8

5

6

3

4

1

2

19

I2C2_SCL_5V

I2C2_SDA_5V

HDMI_CEC_3V3

Open drain pin!

PB13

PB14

PB10

+5V

1

T4

2N7002

R18

27K

+3V3

+5V

TMDS_Data2+

TMDS_Data2-

TMDS_Data1+

TMDS_Data1-

TMDS_Data0+

TMDS_Data0-

TMDS_Clock+

TMDS_Clock-

SB3

SB4

SB5

SB6

2

5

4

U1

GND

IN

EN

FAULT

OUT

STMPS2141STR@54

3

1

C2

4.7uF

R15

0

HDMI_5V_Source

Source

CN3

HD119F-3A09200

13

14

15

16

9

10

11

12

17

18

7

8

5

6

3

4

1

2

19

R22

1M

PD3

HDMI_HPD_Source_5V

+5V

R4

1.8K

R3

1.8K

PB6

PB7

I2C1_SCL_5V

I2C1_SDA_5V

Title: HDMI_CEC

Project: STM32G081B-EVAL Legacy peripheral daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1351

Size: A4 Date: 17-MAY-17 Sheet: 3 of 5

Figure 42. STM32G081B-EVAL legacy peripheral daughterboard Smartcard and IR

IR

Smart Card

+5V

C6

100nF

C3

47uF

VDD

VDD>2.7V

R17

4.7K

C9

C5

100nF

100nF

9

10

7

8

5

6

3

4

1

2

11

12

13

14

U2

CLKDIV1

CLKDIV2

5V/3V

PGND

C1+

Vddp

C1-

Vup

AUX2UC

AUX1UC

I/OUC

XTAL2

XTAL1

OFF

GND

Vdd

PRES

PRES

RSTIN

CMDVCC

I/O

AUX2

PORADJ/1.8V

Vcc

AUX1

CGND

RST

CLK

ST8024LACDR

C12

28

27

26

25

24

23

22

21

20

19

18

17

16

15

100nF

VDD

R27

10K

R26

10K

7

8

5

6

GND

NC

I/O

NC

CN2

C816

VCC

RST

CLK

NC

3

4

1

2

17

18 R16

100K

VDD

VDD

R24

10K[N/A]

R25

10K[N/A]

PB15

SmartCard_3/5V

TP2

AUX2

TP1

AUX1 PA2

SmartCard_IO

PD4

PB12

SmartCard_CLK

SmartCard_OFF

C11

100nF

VDD

C15

47uF

PA15

PB0

PA3

SmartCard_RST

SmartCard_CMDVCC

SmartCard_1V8

IR_LED

IR_OUT

PB9

R5

100

SB1

SB2

R12

10K

VDD

R11

10K

R13

1K

1 T3

9013

1

R6

22

T2

9013

LD1

SFH409-2

+3V3

IR_Receiver

IR_IN

D1

TSOP34836

3

2

1

PC6

R14

+3V3

100

C1

4.7uF

Title: SmartCard_IR

Project: STM32G081B-EVAL Legacy peripheral daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1351

Size: A4 Date: 17-MAY-17 Sheet: 4 of 5

Figure 43. STM32G081B-EVAL legacy peripheral daughterboard temperature sensor and LDR

I2C1_SDA_5V

I2C1_SCL_5V

TempSensor_INT

PB7

PB6

PB5

VDD

R23

10K

1

2

3

4

U3

SDA

SCL

OS/INT

GND

VDD

A0

A1

A2

STLM75M2F

7

6

5

8

+5V

SB7

C7

100nF

R19

10K

+5V

Temperature sensor

Address:100100(A0)

LDR_OUT

PA1

R1

VT9ON1

R2

8.2K

VDD_ANA

Photo resistor

Title: TemSensor_LDR

Project: STM32G081B-EVAL Legacy peripheral daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1351

Size: A4 Date: 17-MAY-17 Sheet: 5 of 5

Figure 44. STM32G081B-EVAL UCPD daughterboard top

PORT1_CC1

PORT1_CC2

PORT1_DB1

PORT1_DB2

VCONN_EN1

VCONN_EN2

FRS_TX1

FRS_TX2

V_CTL1

V_CTL2

DCDC_EN

VSENSE_DCDC

SOURCE_EN

DISCHARGE_1

DISCHARGE_2

VSENSE_1

ISENSE_1

VSENSE_2

ISENSE_2

U_CC & VCONN

CC & VCONN.SchDoc

PORT1_CC1

PORT1_CC2

PORT1_DB1

PORT1_DB2

VCONN_EN1

VCONN_EN2

FRS_TX1

FRS_TX2

CON1_CC1

CON1_CC2

U_SOURCE POWER

SOURCE POWER.SchDoc

V_CTL1

V_CTL2

DCDC_EN

VSENSE_DCDC

U_USB_PD

USB_PD.SchDoc

SOURCE_EN

DISCHARGE_1

DISCHARGE_2

VSENSE_1

ISENSE_1

VSENSE_2

ISENSE_2

U_PORT1_DP_USB3

PORT1_DP_USB3.SchDoc

1_CC1

1_CC2

HPDIN

USB3_DET

I2C_SCL

I2C_SDA

CON1_D+

CON1_D-

U_PORT2_DP

PORT2_DP.SchDoc

I2C_SCL

I2C_SDA

RESET#

PORT2_CC1

PORT2_CC2

HPD_SOURCE

CON2_D+

CON2_D-

U_POWER

POWER.SchDoc

+3V3

Mother board connectors

PA1

PA15

PB6

PB7

V_CTL2

USB3_DET

I2C_SCL

I2C_SDA

R120

ADC input PB11

DCDC_EN=0: Daugher board detection:1.32V

DCDC_EN=1: U18 output measurement:0.43V-3.3V

SB24

U7

RESET

PC6

PB13

PB14

PB1

PB10

PA3

PB12

DB_DET

15K[1%]

6

S2 D

1

C38

+3V3

100nF

5 2

RESET#

HPD_SOURCE

DISCHARGE_1

DISCHARGE_2

VSENSE_1

ISENSE_1

VSENSE_2

ISENSE_2

GND VCC +3V3

VDD

VSENSE_DCDC 4 3 DCDC_EN

S1 SEL

STG5123

R82

[N/A]

CN9

13

14

15

16

9

10

11

12

17

18

7

8

5

6

3

4

1

2

Header 18X1_Female

CN8

13

14

15

16

9

10

11

12

17

18

7

8

5

6

3

4

1

2

PORT1_CC1

PORT1_CC2

PORT1_DB1

PORT1_DB2

VCONN_EN1

VCONN_EN2

FRS_TX1

FRS_TX2

HPDIN

V_CTL1

PORT2_CC1

PORT2_CC2

SOURCE_EN

SB59

Header 18X1_Female

+5V

D5V

VDD

VDD

PA8

PB15

PA9

PA10

PD4

PB9

PA2

PB0

PB5

PC1

PD0

PD2

PD3

HPDIN

USB3_DET

I2C_SCL

I2C_SDA

CON1_D+

CON1_D-

RESET#

PORT2_CC1

PORT2_CC2

HPD_SOURCE

CON2_D+

CON2_D-

VDD

R107 R106

10K 10K

PORT1_CC1

PORT1_CC2

PORT2_CC1

PORT2_CC2

CON1_D+

CON1_D-

CON2_D+

CON2_D-

+5V

C97

100nF

+3V3

C100

100nF

1

3

4

6

D10

ESDA5V3SC6

2

5

RFU

CN10

3

4

1

2

Header 4X1_Female

VDD

C102

100nF

C101

100nF

Title: MB1352_TOP

Project: STM32G081B-EVAL USB-C daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1352

Size: A4 Date: 3-Aug-18 Sheet: 2 of 10

Figure 45. STM32G081B-EVAL UCPD daughterboard CC and VCONN

TYPE-C Source port CC management open-drain

VCONN_EN1

VCONN_OUT

D5V

SB9

SB8

VDD

R9

10K

VCONN_EN1

2 S

SB4

T2

FDV303N

D 3

PORT1_CC1

R33

10K[N/A]

G

PORT1_CC2

PORT1_DB1

1

2

3

JP1/JP2

1-2: Dead battery enable (Default)

JP2

2-3: Dead battery disable

SB12

PORT1_DB2

1

2

3

JP1

2

5

4

U10

GND

IN

EN

FAULT

OUT

3

1

STMPS2161STR

BAT60JFILM

SB5

D11

0.5A

VDD open-drain

VCONN_EN2

VCONN_EN2

R8

10K

R34

10K[N/A]

2

5

4

U14

GND

IN

EN

FAULT

OUT

STMPS2161STR

3

1

D12

BAT60JFILM

2

T3

FDV303N

S D 3

G

FRS_TX1

T12

FDV303N

FRS_TX2

SB11

1

R113

10K

R35

10K

1

T4

FDV303N

CON1_CC1

CON1_CC2

VCONN power

SB33

PSU 0.5A

C71 C65

10uF/50V 220nF/50V

R76

187K

8

U21

VCC

7

GND

6

FSW

5

FB

L7985A

OUT

SYNCH

EN

COMP

1

2

3

4

R117 C55

1.2K

C58 39nF/50V

680pF/50V

L4

18uH(MSS1246-183MLB)

D7

STPS3L40S

0.5A

VCONN_OUT

TP5

VCONN

R75

4.99K

C74

8.2nF/50V

R74

100

R32

330

R123

680

C45

47uF/25V

Title: CC & VCONN

Project: STM32G081B-EVAL USB-C daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1352

Size: A4 Date: 3-Aug-18 Sheet: 3 of 10

Figure 46. STM32G081B-EVAL UCPD daughterboard port1 DP USB3

DP sink & USB3.0 (Port1)

CN4

VBUS

D-

D+

GND

SSTX-

SSTX+

GND_DRAIN

SSRX-

SSRX+

SHELL

SHELL

31930BFBA07BNHF

10

11

7

8

5

6

9

3

4

1

2

R1 10K R2

USB3_DET

Differential pairs 90ohm

SSTX-

SSTX+

SSRX-

SSRX+

10K

C20

C19

C22

C21

100nF

100nF

100nF

100nF

I2C_EN_1

SSEQ0/A0

SSEQ1

DPEQ0/A1

DPEQ1

Differential pairs 100ohm

EQ0

EQ1

CN6

ML_LANE0_P

GND

ML_LANE0_N

12

11

10

L0_P_1

L0_N_1

C23

C24

100nF

100nF

21

22

23

24

ML_LANE1_P

GND

ML_LANE1_N

9

8

7

L1_P_1

L1_N_1

C25

C36

100nF

100nF

ML_LANE2_P

GND

ML_LANE2_N

6

5

4

L2_P_1

L2_N_1

C39

C42

100nF

100nF

ML_LANE3_P

GND

ML_LANE3_N

3

2

1

L3_P_1

L3_N_1

C44

C46

100nF

100nF

CONFIG1

CONFIG2

13

14

R20

R15

1M

1M

R26

1M[N/A]

R11

+3V3

0

SHELL

SHELL

SHELL

SHELL

AUX_CH_P

GND

AUX_CH_N

HPD

RETURN

DP_PWR

15

16

17

18

19

20

Display Port Sink(811F20502214)

+3V3

SB43

AUX_P_1

AUX_N_1

Differential pairs 100ohm

SB6

HPDIN

TP4

R27

R12

1M[N/A]

DP_PWR_SINK

DP_PWR_SINK

0

VDD VDD VDD

I2C_EN_1

R103

1K

R109

[N/A]

SSEQ0/A0

R93

[N/A]

R95

1K

SSEQ1

R90

[N/A]

R19

1K

CON1_D-

CON1_D+

Differential pairs 90ohm

SB60

SB61

SB62

SB63

7

8

4

5

U13

SSTX-

SSTX+

SSRX-

SSRX+

17

I2C_EN

11

3

14

2

SSEQ0/A0

SSEQ1

DPEQ0/A1

DPEQ1

38

35

EQ0

EQ1

15

16

18

19

9

10

12

13

DP0+

DP0-

DP1+

DP1-

DP2+

DP2-

DP3+

DP3-

24

25

AUX+

AUX-

TUSB546-DCI

RX1+

RX1-

TX1+

TX1-

SBU1

SBU2

RX2+

RX2-

TX2+

TX2-

FLIP/SCL

CTL0/SDA

CTL1/HPDIN

CAD_SNK/RSVD1

HPDIN/RSVD2

VCC

VCC

VCC

VCC

TP

R36

R37

I2C address:0b1000100

100K

100K

HPDIN

R96

VDD

1M

+3V3

VDD

27

26

40

39

37

36

21

22

23

29

32

1

6

20

28

41

30

31

33

34

C43

C40

100nF

100nF

Differential pairs 90ohm

C26

C37

100nF

100nF

SB18

SB19

I2C_SCL

I2C_SDA

SB20

SB48

HPDIN

TP6

CAD_SNK

HPDIN

VDD

C1_RX1+

C1_RX1-

C1_TX1+

C1_TX1-

R38

2M

Differential pairs 90ohm

C1_RX2+

C1_RX2-

C1_TX2+

C1_TX2-

R39

2M

SSTX+

SSTX-

SSRX+

SSRX-

1

4

5

2

3

U4

HSP051-4M10

U15

1_SBU1

1_SBU2

10

9

8

7

6

1_CC1

1_CC2

L2_P_1

L2_N_1

L3_P_1

L3_N_1

4

5

1

2

3

7

6

10

9

8

VDD VDD HSP051-4M10

L0_P_1

L0_N_1

L1_P_1

L1_N_1

AUX_N_1

AUX_P_1

HPDIN

1

4

5

2

3

4

5

1

2

3

U_TYPEC_SOURCE_CON

TYPEC_SOURCE_CON.SchDoc

C1_D-

C1_D+

C1_RX1+

C1_RX1-

C1_TX1+

C1_TX1-

1_SBU1

1_SBU2

C1_RX2+

C1_RX2-

C1_TX2+

C1_TX2-

1_CC1

1_CC2

U12

HSP051-4M10

U9

HSP051-4M10

7

6

10

9

8

10

9

8

7

6

DPEQ0/A1

R100

[N/A]

DPEQ1

R21

[N/A]

EQ0

R97

[N/A]

EQ1

R108

[N/A]

VDD

C95

10uF

C94

100nF

C90

100nF

C91

100nF

C93

100nF

R98

1K

R16

1K

R99

1K

R102

1K

Title: PORT1_DP_USB3

Project: STM32G081B-EVAL USB-C daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1352

Size: A4 Date: 3-Aug-18 Sheet: 4 of 10

Figure 47. STM32G081B-EVAL UCPD daughterboard Type-C source con

C1_CC1

C1_CC2

C1_SBU1

C1_SBU2

SB56

SB57

SB58

SB53

1_CC1

1_CC2

1_SBU1

1_SBU2

TYPE-C DRP port (Port1)

D5

ESDA25SC6[N/A]

VBUS1 3A

Differential pairs 90ohm

C1_TX1+

C1_TX1-

C1_TX1+

C1_TX1-

C1_RX2-

C1_RX2+

C1_RX2-

C1_RX2+

A5

A6

A7

A8

A9

A1

A2

A3

A4

A10

A11

A12

5

6

CN7

PAD

PAD

GND1

TX1+

TX1-

VBUS1

CC1

D+1

D-1

SBU1

VBUS2

RX2-

RX2+

GND2

1

2

SHELL

SHELL

317JD24BZTF3K3C3

GND

GND

GND4

RX1+

RX1-

VBUS4

SBU2

D-2

D+2

CC2

VBUS3

TX2-

TX2+

GND3

SHELL

SHELL

3

4

B14

B13

B7

B6

B5

B4

B12

B11

B10

B9

B8

B3

B2

B1

C1_D+

C1_D-

C1_D+

C1_D-

VBUS1

VBUS1

C16

1uF[N/A]

SB25

R126

1K/0.5W

Differential pairs 90ohm

C1_RX1+

C1_RX1-

C1_RX1+

C1_RX1-

C1_TX2-

C1_TX2+

C1_TX2-

C1_TX2+

VBUS1

D6

ESDA25P35-1U1M

SB27

SB28

C112

390pF[N/A]

C113

390pF[N/A]

C1_D-

C1_D+

SB54

SB55

SB70

SB71

C1_CC1

C1_CC2

C1_SBU1

C1_SBU2

1

2

4

5

7

6

U17

RPD_G1

RPD_G2

C_CC1

C_CC2

C_SBU1

C_SBU2

20

19

17

16

D1

D2

D3

D4

18

8

13

21

GND

GND

GND

PAD

TPD8S300RUKR

CC1

CC2

SBU1

SBU2

VBIAS

VPWR

/FLT

12

11

15

14

SB21

SB22

1_SBU1

1_SBU2

1_CC1

1_CC2

3

10

9

C54

R114

100K

100nF

1_CC1

1_CC2

1_SBU1

1_SBU2

VDD

C51

1uF_X5R_0603

C1_TX1+

C1_TX1-

C1_RX1+

C1_RX1-

1

4

5

2

3

U19

HSP051-4M10

10

9

8

7

6

C1_RX2-

C1_RX2+

C1_TX2-

C1_TX2+

1

4

5

2

3

U20

HSP051-4M10

10

9

8

7

6

Title: TYPEC_SOURCE_CON

Project: STM32G081B-EVAL USB-C daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1352

Size: A4 Date: 3-Aug-18 Sheet: 5 of 10

Figure 48. STM32G081B-EVAL UCPD daughterboard port2 DP

DP source (Port2)

U_TYPEC_SINK_CON

TYPEC_SINK_CON.SchDoc

C2_RX1+

C2_RX1-

C2_RX2+

C2_RX2-

C2_TX1+

C2_TX1-

C2_TX2+

C2_TX2-

2_SBU1

2_SBU2

Differential pairs 90ohm

C2_RX1+

C2_RX1-

H6

J6

U8

OP1+

OP1-

C2_RX2+

C2_RX2-

D6

E6

OP2+

OP2-

C2_TX1+

C2_TX1-

G6

F6

OP3+

OP3-

C2_TX2+

C2_TX2-

C6

B6

OP4+

OP4-

2_SBU1

2_SBU2

SW_EN

VDD

IP1+

IP1-

IP2+

IP2-

IP3+

IP3-

IP4+

IP4-

A5

A6

OP5A

OP5B

IP5+

IP5-

J5

B2

E3

H3

E4

B5

D3

F3

F4

H2

SW_EN IP6+

IP6-

VDD

VDD IP7A

IP7B

VDDIO

VDDIO IP8A

IP8B

GND

GND

GND

GND

GND

CBTL08GP053EVY

I2C_SCL

I2C_SDA

SLV_ADDR1

SLV_ADDR2

I2C address:0b0110000

I2C_SDA

I2C_SCL

J4

H4

H5

D4

J2

J3

H1

J1

F1

G1

E1

D1

C1

B1

A1

A2

Differential pairs 100ohm

C27

C28

C29

C30

C31

C32

C33

C34

100nF

100nF

100nF

100nF

100nF

100nF

100nF

100nF

11

12

8

9

4

5

1

2

U6

IN0_P

IN0_N

IN1_P

IN1_N

IN2_P

IN2_N

IN3_P

IN3_N

I2C_SDA

I2C_SCL

I2C_EN_2

SB10

SB7

14

15

16

SDA

DRV_PK#SCL

I2C_EN

A3

A4 CS 17

TX_DC_GAIN/CS

B3

B4

A0

A1

A2

33

34

35

EQ0/ADD0

EQ1/ADD1

EQ_MODE/ADD2

ADDR1

ADDR2

GAIN

PWD#

36

37

RX_GAIN

PWD#

18

REXT

R14 1.2K

OUT0_P

OUT0_N

OUT1_P

OUT1_N

OUT2_P

OUT2_N

OUT3_P

OUT3_N

TP-GND

SN65DP141RLJ

I2C address:0b0000000

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

I2C_SDA

I2C_SCL

R25

1K[N/A]

RESET#

C13

C14

+3V3

100nF

100nF

31

30

28

27

24

23

21

20

13

19

22

25

3

6

7

10

26

29

32

38

39

C5

C6

C7

C8

C9

C10

C11

C12

R30

R31

R4

1M

VDD

100K

100K

100nF

100nF

100nF

100nF

100nF

100nF

100nF

100nF

R5

1M

Differential pairs 100ohm

L0_P_2

L0_N_2

L1_P_2

L1_N_2

L2_P_2

L2_N_2

L3_P_2

L3_N_2

AUX_P_2

AUX_N_2

HPD_SOURCE

SB1

R81

7

8

9

4

5

6

1

2

3

CN2

ML_LANE0_P

GND

ML_LANE0_N

ML_LANE1_P

GND

ML_LANE1_N

ML_LANE2_P

GND

ML_LANE2_N

10

11

12

ML_LANE3_P

GND

ML_LANE3_N

13

14

CONFIG1

CONFIG2

15

16

17

18

19

20

AUX_CH_P

GND

AUX_CH_N

SHELL

HPD

RETURN

DP_PWR

SHELL

SHELL

SHELL

21

22

23

24

Display Port Source(811F20502214)

SB40

+3V3

DP_PWR_SOURCE

TP1

DP_PWR_SOURCE

HPD_SOURCE

1M

U1 U2 U3 VDD

L0_P_2

L0_N_2

L1_P_2

1

2

3

4

8

7

10

9

L2_P_2

L2_N_2

L3_P_2

1

2

3

4

8

7

10

9

AUX_P_2

AUX_N_2

1

2

3

HPD_SOURCE 4

8

7

10

9

VDD

C92

10uF

C80

100nF

C89

100nF

Close to CBTL08G

C81

100nF

C87

100nF

L1_N_2 5 6 L3_N_2 5 6 5 6

C35

10uF

HSP051-4M10 HSP051-4M10 HSP051-4M10

C17

100nF

C86

100nF

C88

100nF

C77

100nF

C82

100nF

C84

100nF

Close to SN65DP141

VDD VDD VDD VDD VDD VDD VDD VDD VDD

VDD

ADDR1

R105

[N/A]

ADDR2

R87

[N/A]

SW_EN

R28

1K

I2C_EN_2

R91

1K

CS

R88

1K

A0

R13

[N/A]

A1

R17

[N/A]

A2

R22

[N/A]

GAIN

R24

[N/A] C83

100nF

C75

100nF

C76

100nF

C78

100nF

C79

100nF

C85

100nF

Close to SN65DP141

R104

1K

R86

1K

R29

[N/A]

R23

[N/A]

R18

[N/A]

R85

1K

R89

1K

R92

1K

R94

[N/A]

Title: PORT2_DP

Project: STM32G081B-EVAL USB-C daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1352

Size: A4 Date: 3-Aug-18 Sheet: 6 of 10

Figure 49. STM32G081B-EVAL UCPD daughterboard Type-C sink con

C2_CC1

C2_CC2

C2_SBU1

C2_SBU2

SB44

SB45

SB41

SB42

PORT2_CC1

PORT2_CC2

2_SBU1

2_SBU2 TYPE-C Sink port (Port2)

D2

ESDA25SC6[N/A]

VBUS2

Differential pairs 90ohm

C2_TX1+

C2_TX1-

C2_RX2-

C2_RX2+

C2_TX1+

C2_TX1-

C2_RX2-

C2_RX2+

A5

A6

A7

A8

A1

A2

A3

A4

A9

A10

A11

A12

5

6

CN5

PAD

PAD

GND1

TX1+

TX1-

VBUS1

CC1

D+1

D-1

SBU1

VBUS2

RX2-

RX2+

GND2

1

2

SHELL

SHELL

317JD24BZTF3K3C3

C2_D-

C2_D+

SB64

SB65

SB66

SB67

C110

GND

GND

GND4

RX1+

RX1-

VBUS4

SBU2

D-2

D+2

CC2

VBUS3

TX2-

TX2+

GND3

SHELL

SHELL

3

4

B14

B13

B12

B11

B10

B9

B8

B7

B6

B5

B4

B3

B2

B1

Differential pairs 90ohm

C2_RX1+

C2_RX1-

C2_TX2-

C2_TX2+

C2_RX1+

C2_RX1-

C2_TX2-

C2_TX2+

390pF[N/A]

C111

390pF[N/A]

Differential pairs 90ohm

CON2_D-

CON2_D+

VCONN_OUT

+5V

JP3

5

6

3

4

1

2

CN1

VBUS

D-

D+

GND

SHELL

SHELL

319AFKA06CN

VBUS2

D1

ESDA25P35-1U1M

VBUS2

C15

1uF[N/A]

SB17

SB16

SB50

SB49

C2_D-

C2_D+

SB68

SB69

C2_CC1

C2_CC2

C2_SBU1

C2_SBU2

20

19

17

16

1

2

4

5

7

6

U16

RPD_G1

RPD_G2

C_CC1

C_CC2

C_SBU1

C_SBU2

D1

D2

D3

D4

18

8

13

21

GND

GND

GND

PAD

TPD8S300RUKR

CC1

CC2

SBU1

SBU2

VBIAS

VPWR

/FLT

12

11

15

14

SB52

SB51

2_SBU1

2_SBU2

PORT2_CC1

PORT2_CC2

2_SBU1

2_SBU2

PORT2_CC1

PORT2_CC2

3

10

9

C96

R112

100K

100nF

C47

VDD

1uF_X5R_0603

C2_RX1+

C2_RX1-

C2_TX1+

C2_TX1-

1

4

5

2

3

U11

HSP051-4M10

10

9

8

7

6

C2_RX2-

C2_RX2+

C2_TX2-

C2_TX2+

1

4

5

2

3

U5

HSP051-4M10

10

9

8

7

6

Title: TYPEC_SINK_CON

Project: STM32G081B-EVAL USB-C daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1352

Size: A4 Date: 3-Aug-18 Sheet: 7 of 10

Figure 50. STM32G081B-EVAL UCPD daughterboard USB PD

Power Delivery management (TypeC Port1)

VSOURCE

SOURCE_EN

D S

G T7

STL9P3LLH6

R42

21K

3

R124

10K

R41

2K

S D

C4

220nF[N/A]

G T6

STL9P3LLH6

T5

STL6N2VH5

DISCHARGE_1

SB35

TP9

LOCAL_PWR1

3A

LOCAL_PWR1

R47

1K/0.5W

R49

1K/0.5W

R52

1K/0.5W

R56

1K/0.5W

+3V3

3

R57

49.9K

T8

STL6N2VH5

C63

R77

49.9K[1%]

R79

49.9K[1%]

C72

100nF

3

4

R122 24.9K

100nF

ISENSE_1

1

U25

TSV911ILT

U23

INA199C1DCKR

+3V3 C68

100nF

6

1

OUT

REF

VSENSE_1

R69

0.005[1%]

IN-

5

IN+

4

U28

TSV911ILT

1

+3V3

C99

100nF

3

4

VBUS1

R64

330K[1%]

CN11

1

2

MPT 0.5/2-2.54

C3

R119

49.9K[1%] 22nF

R116 43K

Power Delivery management (TypeC Port2)

DISCHARGE_2

SB36

CN12

1

2

MPT 0.5/2-2.54

LOCAL_PWR2

3A

R48

1K/0.5W

R50

1K/0.5W

R55

1K/0.5W

R59

1K/0.5W

3

R58

49.9K

T9

STL6N2VH5

+3V3

C64

R78

49.9K[1%]

R80

49.9K[1%]

C73

100nF

3

4

R121 24.9K

100nF

ISENSE_2

1

U26

TSV911ILT

U24

INA199C1DCKR

+3V3 C69

100nF

6

1

OUT

REF

IN-

IN+

5

4

VBUS2

TP10

VBUS2

R70

0.005[1%]

C98

+3V3

VSENSE_2

U27

TSV911ILT

1

100nF

3

4

R63

330K[1%]

R118

49.9K[1%]

C18

22nF

R115 43K

Title: USB_PD

Project: STM32G081B-EVAL USB-C daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1352

Size: A4 Date: 3-Aug-18 Sheet: 8 of 10

Power jack input

CN3

DC-094

4

3

1

5

2

Figure 51. STM32G081B-EVAL UCPD daughterboard power

Z1

SMAJ20A-TR C1

100nF/50V

1

L1

SV

2

CV

SG CG1

CG2

CG3

BNX002-01

3

4

5

6

TP2

PSU

3A

C2

220uF/50V

PSU

R125

3K

LD1

Green

TP8

Ground

TP3

Ground

Local power selection

PSU D8

1

2

VDC

1A

D3

3

LOCAL_PWR2

JP5

STPS2L30A[N/A] D3: Backup footprint

LOCAL_PWR1

R73

21K

STPS2L30A

S

T10

STL9P3LLH6

R72

21K

G

D

D5V power

SB37

VDC 1A

C66 C67

3.3uF/50V 220nF/50V[N/A]

R71

162K

8

U22

VCC

7

GND

6

FSW

5

FB

L7985A

OUT

SYNCH

EN

COMP

1

2

3

4

R66 C62

22K C61 39nF/50V

2.2nF/50V

L5

47uH(MSS1246T-473MLB)

D9

STPS3L40S

R68

4.99K

C60

7.5nF/50V

R67

100

1A

C70

33uF(TPS83360160500)

D5V

TP7

D5V

Z2

SMAJ5.0A-TR

R10

1K

LD2

Green

R65

680

Title: POWER

Project: STM32G081B-EVAL USB-C daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1352

Size: A4 Date: 3-Aug-18 Sheet: 9 of 10

Figure 52. STM32G081B-EVAL UCPD daughterboard source power

Source Power

PSU

R110 0

R3

200K[1%]

3A

DCDC_EN

SB26

R6

3K[1%]

U18

1

BOOT

2

VIN

3

EN

4

RT/CLK

R62

93.1K[1%]

TPS54540

C56 100nF

SW

GND

COMP

FB

8

7

6

5 R40

51.1K

C50

11pF/50V

C49

750pF/50V

V_CTL1

V_CTL2

Mode

GPIO

SB2

SB14

PWM_CTL

VSOURCE_9V

SB23

SB15

DCDC_EN

VSOURCE_15V

DCDC_EN

Mount

SB13,SB14,SB15

Removed

SB2,SB3,SB23,SB26

PWM(Default) SB2,SB3,SB23,SB26 SB13,SB14,SB15

L2

4.7uH(SRN8040-4R7Y)

D4

B540C-13-F

R111

[N/A]

C108

[N/A]

3A

R45

220K[1%]

R127

0

C109

68pF/50V

C41

+3V3

U29 100nF

TSV911ILT

1

VSENSE_DCDC

VSENSE_DCDC:

Detect U18 output voltage level

3

4

VSOURCE

R83

330K[1%]

R84

49.9K[1%]

C48

10nF

R101 43K

SB3

SB13

R43

12.4K[1%]

VSOURCE_15V

R44

9.1K[1%]

VSOURCE_9V

R46

20.5K[1%]

GPIO mode

Fixed voltage output:5V/9V/15V

R7 0

R60

[N/A]

R53

82K[1%]

R54

5.1K[1%]

C57

R61

7.5K[1%]

470nF/50V

VDD

R51

[N/A]

PWM_CTL vPWM mode: 0 and open-drain, 20kHz

PWM voltage control

Step1: DCDC_EN detects its voltage to ensure PSU 19V exist

Step2: PWM_CTL provides about 0.8V level before DCDC_EN=1

Step3: DCDC_EN=1, then PWM_CTL changes to provide PWM waveform by 0 and open-drain

Title: SOURCE POWER

Project: STM32G081B-EVAL USB-C daughter board

Variant:

Revision:

Variant name is not interpreted until output

Reference: MB1352

Size: A4 Date: 3-Aug-18 Sheet: 10 of 10

UM2403 STM32G081B-EVAL IO Assignment

Appendix B STM32G081B-EVAL IO Assignment

Table 42. STM32G081B-EVAL IO Assignment

Pin Name

IO Assignment on mother board

IO Assignment on legacy daughterboard

IO Assignment on UCPD daughterboard

18

19

20

21

22

23

1

2

3

4

14

15

16

17

5

10

11

12

13

6

7

8

9

PC11

PC12

PC13

PC14 -

OSC32_IN

PC15 -

OSC32_OUT

PF3 - VBAT

PF4 - VREF+

VDD_1

VSS_1

PF0 - OSC_IN OSC_IN

PF1 - OSC_OUT OSC_OUT

PF2 - NRST NRST, (WKUP8)

PC0 GPIO_EXT_RST

PC1

PC2

PC3

PA0

PA1

PA2

PA3

PA4

PA5

PA6

VCP_USART_3_RX

GPIO_LCD / SD_MOSI_DIR -

KEY_TAMP_IN1, RTC_TS,

RTC_OUT1, WKUP2

-

-

OSC32_IN

OSC32_OUT

VBAT

VREF+

VDD

VSS

MC_IO_(PFC_sync1)

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

GPIO_9V_EN_LPTIM1_OU

T

GPIO_JOY_UP

GPIO_JOY_DOWN

JOY_SEL_TAMP_IN2,

WKUP1

MC_AIN1_COMP_1_INP

(Bus voltage)

MC_ADC_IN2(CurrentA)

MC_ADC_IN3(Heatsink temp)

AUDIO_OUT_DAC1_OUT1 -

AUDIO_OUT_DAC1_OUT2 -

AUDIO_IN_ADC_IN6 /

MC_ADC_IN6(CurrentB)

-

-

-

-

LDR_OUT_COMP_1_INP

_ADC_IN1

SMART_2_TX

GPIO_SMART_1V8

-

-

-

-

GPIO_DP1_DET

TYPE-C_1_FRSTX

TYPE-C_2_V_ADC_IN3

UM2403 Rev 2

73/79

78

STM32G081B-EVAL IO Assignment

Table 42. STM32G081B-EVAL IO Assignment (continued)

UM2403

Pin Name

IO Assignment on mother board

IO Assignment on legacy daughterboard

IO Assignment on UCPD daughterboard

38

39

40

41

42

33

34

35

36

37

43

44

45

46

47

48

49

50

28

29

30

31

32

24

25

26

27

PA7

PC4

PC5

PB0

PB1

PB2

PB10

PB11

PB12

LCD/SD1_MOSI

USART_1_TX

USART_1_RX

MC_TIM_3_CH3(Encoder index)

-

-

-

-

-

-

GPIO_SMART_CMDVCC TYPE-C_1_FRSTX

MC_TIM_3_CH4(PFC_PWM) -

POT_ADC_IN10 -

MC_ADC_IN11(CurrentC)

BOARD_DET_ADC_IN15

-

TYPE-C_1_V_ADC_IN9

HDMI_CEC TYPE-C_1_I_ADC_IN11

BOARD_DET_ADC_IN15 BOARD_DET_ADC_IN15

-

-

MC_TIM_1_BK(EmergencyS

TOP)

GPIO_SMART_OFF TYPE-C_2_I_ADC_IN16

I2C2_SCL (HDMI_SINK) GPIO_DISCHARGE_1

I2C2_SDA (HDMI_SINK) GPIO_DISCHARGE_2

MC_IO_ (Dissipative brake) GPIO_SMART_3/5V

MC_TIM_1_CH1(UH) -

TYPE-C_1_CC2

TYPE-C_1_CC1

PB13

PB14

PB15

PA8

PA9

PC6

PC7

PD8

PD9

PC8

PC9

PD0

USART_BOOT_1_TX /

MC_TIM_1_CH2(VH)

MC_TIM_3_CH1 (EncoderA) IR_IN_TIM3_CH1

GPIO_JOY_RIGHT

LED3

LED4

PA10

PA11 [PA9]

PA12 [PA10]

USART_BOOT_1_RX /

MC_TIM_1_CH3(WH)

USART_1_CTS

USART_1_RTS_DE_CK

PA13 SWDIO

PA14 - BOOT0 SWCLK / BOOT0

PA15 -

GPIO_JOY_LEFT

GPIO_SD_DETECT

MC_TIM_16_CH1(PFC_sync

2)

-

-

-

-

-

-

-

-

-

-

-

-

GPIO_SMART_RST

-

-

-

-

-

-

-

-

-

TYPE-C_1_DBCC1

GPIO_DP2_HPD

TYPE-C_1_DBCC2

GPIO_USB3_DET

TYPE-C_2_CC1

74/79

UM2403 Rev 2

UM2403 STM32G081B-EVAL IO Assignment

Table 42. STM32G081B-EVAL IO Assignment (continued)

Pin Name

IO Assignment on mother board

IO Assignment on legacy daughterboard

IO Assignment on UCPD daughterboard

PD1

PD2

PD3

PD4

PD5

PD6

PB3

PB4

PB5

51

52

53

54

55

56

57

58

59

60 PB6

61

62

63

64

PB7

PB8

PB9

PC10

GPIO_SD_CS

MC_TIM_1_CH1N(UL)

MC_TIM_1_CH2N(VL)

MC_TIM_1_CH3N(WL)

LED1

LED2

LCD/SD1_SCK

LCD/SD1_MISO

MC_TIM_3_CH2(EncoderB)

I2C1_SCL

I2C1_SDA

GPIO_LCD_CS

MC_IO_ (NTC_bypass)

VCP_USART_3_TX

-

-

-

-

-

GPIO_HDMI_HPD_SINK TYPE-C_2_CC2

GPIO_HDMI_HPD_SOUR

CE

GPIO_SOURCE_EN

SMART_2_RTS_DE_CK GPIO_VCONN_EN_1_1

-

-

-

-

TEMP_SENSOR_INT_W

KUP6

HDMI_SOURCE_I2C1_S

CL

-

HDMI_SOURCE_I2C1_S

DA

-

IR_OUT

-

-

GPIO_15V_EN

MUX_I2C1_SCL

MUX_I2C1_SDA

GPIO_VCONN_EN_1_2

UM2403 Rev 2

75/79

78

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

Appendix C Federal Communications Commission (FCC) and

Industry Canada (IC) Compliance Statements

C.1 FCC Compliance Statement

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.

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.

C.2

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.

IC Compliance Statement

C.3

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

Déclaration de conformité

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

76/79

UM2403 Rev 2

UM2403

Appendix D Mechanical dimensions

Figure 53. Mechanical dimensions

Mechanical dimensions

A

A1 a

B

D d

E

Symbol Size (mm)

Table 43. Mechanical dimensions

Symbol Size (mm) Symbol

3.5

3.2

47

68.58

61.97

2.54

36 e

H

Lx

Ly

Mx

My

P1

77.44

11

5.715

5.715

19.08

23.81

65.78

P2

P3

Q1

Q2

Q3

X

Y

Size (mm)

111.76

10.41

24.12

17.70

16

114.3

172.72

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Revision history

Revision history

Date

7-Nov-2018

3-Jun-2019

Table 44. Document revision history

Revision Changes

1

2

Initial version

Updated Figure 32: STM32G081B-EVAL audio

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