STMicroelectronics STEVAL-DPSG474 User Manual
ಜಾಹಿರಾತು
ಜಾಹಿರಾತು
UM2997
User manual
Getting started with the STEVAL-DPSG474 digital power supply control
kit
Introduction
The STEVAL-DPSG474 is a digital power supply control kit. It consists of a main board, based on the
STM32G474RE microcontroller from the STM32G4 family, and an adapter board, which provides different communication interfaces and allows programming the microcontroller through a standard 20-pin JTAG connector.
The STM32G474RE microcontroller includes the high-performance Arm ® Cortex ® M4 32-bit RISC core operating at up to 170 MHz frequency, a floating point unit (FPU), a full set of DSP (digital signal processing) instructions, and high-speed embedded memories (512 Kbytes of flash memory and 128 Kbytes of SRAM).
The device embeds peripherals that allow the mathematical/arithmetic function acceleration (CORDIC for trigonometric functions and FMAC unit for filter functions).
The MCU offers five fast 12-bit ADCs (5 Msps), seven ultra-fast comparators, six operational amplifiers, seven
DAC channels (three external and four internal), a low-power RTC, 32-bit timers, three timers dedicated to motor control, seven general-purpose 16-bit timers, one 16-bit low-power timer, and the high-resolution timer (HRTIM) with 184 ps resolution, specifically designed to drive power conversion systems.
The main board embeds a standard 64-pin DIN 41612 connector for connection with a power board. It provides all the PWM control signals, sensing networks, and protection features needed for a wide range of digital power supply applications.
An external 5 V supply voltage can supply the board either through a dedicated connector or through the main connector. The adapter board features a configurable user communication (SMBus, CAN, or RS-232) with two
DB9 connectors and the appropriate transceiver ICs, a standard STDC14 14-pin connector, which provides the SWD interface for debugging and USART communication for user interface (UI), and the standard JTAG connector for programming.
The board also includes a reset button and a termination resistance between the CAN lines.
You can easily connect the STEVAL-DPSG474 to another control board via opto-coupled serial communication and dedicated connectors.
Figure 1. STEVAL-DPSG474 control board
UM2997 - Rev 1 - April 2022
For further information contact your local STMicroelectronics sales office.
www.st.com
Figure 2. STEVAL-DPSG474 adapter board
UM2997
UM2997 - Rev 1 page 2/24
1
UM2997
Features
Features
•
•
•
•
•
•
•
•
•
•
•
•
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Control board for digital SMPS (PFC converters, HF isolating DC-DC converters, DC-AC inverters) based on the STM32G474RE microcontroller:
– High-resolution timer (HRTIM) for D-SMPS applications
– Filter math accelerator unit (FMAC) to perform arithmetic operations on vectors
– Coprocessor (CORDIC) to provide hardware acceleration of trigonometric functions
64-pin DIN 41612 connector for D-SMPS modular approach
STDC14 programming connector
Opto-coupled serial communication for board-to-board communication
RC filters for analog inputs
Protection of the microcontroller analog lines with diode arrays
ESD protection on SWD and COM lines
Adapter board provided for programming and user communication (USART, CAN, SMBus)
Supply voltage: 5 V
Embedded 5 V/3.3 V voltage regulator
Dedicated test points for debugging
LED signaling for power-on, faults, errors, and general purpose
RoHS compliant
UM2997 - Rev 1 page 3/24
2
UM2997 - Rev 1
UM2997
Overview
Overview
The STEVAL-DPSG474 has been specifically designed to control digital-based power converters (DSMPS) such as PFC converters, resonant converters, and HF isolating DC-DC converters in general. It interfaces with the power board using a standard 64-pin DIN 41612 connector, which provides control signals, ADC channels, COMP
I/O, GPIOs, and the communication features needed to implement advanced control techniques for a wide range of DSMPS applications.
The control board embeds an STM32G474RE microcontroller with a high-resolution timer (HRTIM), which guarantees a fine control capability, specially for high frequency and resonant converters.
Figure 3. STEVAL-DPSG474 control board: main components
1.
U1: STM32G474RE 32-bit microcontroller
2.
U2: DSMPS standard 64-pin connector for digital power applications
3.
U3: STDC14 connector to program and/or debug applications via ST-LINKV3 or to connect the adapter board
4.
U4: Supply connector to provide an external 5 V
5.
U5: LDO to regulate a 3.3 V to supply MCU
6.
U6-U7: UART iso-connectors to connect another control board
7.
U8: Test points to debug the user application
6
4 5 1
3
7
8
2
Figure 4. STEVAL-DPSG474 adapter board: main components
1.
U1: JTAG connector
2.
U2: jumpers to configure the user communication
3.
U3: STDC14 connector to program and/or connect the adapter board
4.
U4: RS-232 connector
5.
U5: CAN connector
6.
U6: reset button
1
2
5
6
3
4 page 4/24
2.1
UM2997
DSMPS connector
DSMPS connector
The DSMPS connector is a 64-pin ST standard connector adopted in several power conversion evaluation kits
(for example, STEVAL-DPSLLCK1 , STEVAL-DPSTPFC1 , STEVAL-LLL009V1 , etc.), which allows an easy control board connection and a fast microcontroller change. Thanks to this modular approach, you can use the same control board for different applications, or change the microcontroller to evaluate the performances of the latest
ST products.
DSMPS connector function
VDD_iso
GND_iso
UART_TX_iso
UART_RX_iso
N.C.
N.C.
CAN_1_TX/SPI_NSS
CAN_1_RX/SPI_SCK
SMBus_SCL/UI_USART_RX/CAN_2_RX
SMBus_SMBA/SPI_MOSI/EEV_4
SMBus_SDA/UI_USART_TX/CAN_2_TX
GND
+5V
+3.3V
FAULT_1
GPIO_1/GP_PWM_1
PWM_1
PWM_2
PWM_3
PWM_4
PWM_5
PWM_6
PWM_7
PWM_8
PWM_9
PWM_10
PWM_11
PWM_12
GPIO_2/COMP_2_OUT/GP_PWM_2
GPIO_3/COMP_1_OUT/FAULT_2
GPIO_4/EEV_1
GND
GPIO_5/DAC_1
GPIO_6/DAC_2
Table 1. DSMPS connector V 1.7 pinout and related MCU AF
B12
B15
A16
B16
A17
B17
A13
B13
A14
B14
A15
B9
A10
B10
A11
B11
A12
A7
B7
A8
B8
A9
B3
A4
B4
A5
B5
A6
B6
DIN 41612 pin MCU pin
A1
B1
A2
B2
A3
-
-
-
PB6
PB7
STM32G474RE alternate function
-
-
USART1_TX
-
USART1_RX
-
SPI1_NSS/SPI3_NSS/FDCAN3_TX
-
PA15
PB3 SPI1_SCK/FDCAN3_RX
PB8-BOOT0 FDCAN1_RX/I2C1_SCL/USART3_RX
PB5 I2C1_SMBA/SPI1_MOSI/HRTIM_EEV6
PB9
VSS -
FDCAN1_TX/I2C1_SDA/USART3_TX
-
VDD, VBAT -
PC10
PC13
PA8
-
HRTIM_FLT6
GPIO/TIM1_CH1N
HRTIM_CHA1/TIM1_CH1
PA9
PA10
PA11
PB12
PB13
PB14
PB15
PC8
PC9
PC6
PC7
PB1
PA12
PC12
VSS
PA4
PA5
HRTIM_CHA2/TIM1_CH2
HRTIM_CHB1/TIM1_CH3
HRTIM_CHB2/TIM1_CH4/TIM1_CH1N
HRTIM_CHC1
HRTIM_CHC2/TIM1_CH1N
HRTIM_CHD1/TIM15_CH1/TIM1_CH2N
HRTIM_CHD2/TIM15_CH2/TIM15_CH1N/
TIM1_CH3N
HRTIM_CHE1/TIM3_CH3/TIM8_CH3
HRTIM_CHE2/TIM3_CH4/TIM8_CH4
HRTIM_CHF1/TIM8_CH1/TIM3_CH1
HRTIM_CHF2/TIM8_CH2/TIM3_CH2
COMP4_OUT/TIM3_CH4
HRTIM_FLT1/COMP2_OUT
-
HRTIM_EEV1
DAC1_OUT1
DAC1_OUT2
UM2997 - Rev 1 page 5/24
2.2
UM2997
STDC14 connector
DSMPS connector function
GPIO_7/DAC_3/OP-AMP_1_OUT
GPIO_8/EEV_2
GPIO_9/EEV_3/SPI_MISO
GPIO_10
ADC_1/DIFF_ADC_1+
A_VDD
ADC_2/DIFF_ADC_1-/OP-AMP_2+
A_GND
ADC_3/DIFF_ADC_2+/OP-AMP_2_OUT/
COMP_1_INM
ADC_4/DIFF_ADC_2-/OP-AMP_2-
ADC_5
ADC_6/OP-AMP_1-
COMP_2_INP/ADC_12/OP-AMP_1+
ADC_7/COMP_2_INM
ADC_8/COMP_4_INM
ADC_9/COMP_4_INP
ADC_10/COMP_4_OUT
COMP_1_INP/ADC_11
COMP_3_INP
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
DIN 41612 pin MCU pin
A18 PA6
B18
A19
B19
PC11
PB4
PC14
A20
B20
A21
B21-B32
PA0
VDDA
PA1
VSSA
STM32G474RE alternate function
DAC2_OUT1/OPAMP2_VOUT
HRTIM_EEV2
-
HRTIM_EEV7/SPI1_MISO
-
ADC12_IN1/COMP1_INM/COMP3_INP
-
ADC12_IN2/OPAMP1-3_VINP
PA2
PA3
PC4
PC5
PB0
PB2
PC0
PC1
PC2
PA7
PB11
ADC1_IN3/COMP2_INM/OPAMP1_VOUT
ADC1_IN4/OPAMP1_VINM
ADC2_IN5
ADC2_IN11/OPAMP2_VINM/OPAMP1_VINM
COMP4_INP/ADC3_IN12/ADC1_IN15/
OPAMP2-3_VINP
ADC2_IN12/COMP4_INM/COMP3_INP
ADC12_IN6/COMP3_INM
ADC12_IN7/COMP3_INP
ADC12_IN8/COMP3_OUT
COMP2_INP/ADC2_IN4
COMP6_INP
STDC14 connector
The CN1 connector can be used either to connect a standard ST-LINKV3 dongle, which allows programming the microcontroller and debugging the user application using an SWD connection. It also allows connecting the adapter board included in the STEVAL-DPSG474 kit.
STD14 pin number
5
6
7
8
9
3
4
1
2
10
11
12
13
14
Table 2. CN1 connector pinout
Function
N.C.
N.C.
3.3V
SWDIO
GND
SWCLK
GND
N.C.
N.C.
I2C1_SMBA
GND
NRST
FDCAN1_RX/I2C1_SCL/USART3_RX
FDCAN1_TX/I2C1_SDA/USART3_TX
UM2997 - Rev 1 page 6/24
2.3
UM2997
Adapter board
Adapter board
The adapter board allows extending the communication interfaces or using a standard 20-pin JTAG dongle to program the MCU or debug the user application.
You can configure the MCU communication interface (USART3) in UART, CAN, or SMBUS according to the jumper configuration (J9 and J11). An on-board RS-232 and a CAN transceiver provides the corresponding outputs on P1 (DB9 female) and P2 (DB9 male) connectors, respectively.
The SMBUS connection is available on the J2 connector. A reset button is also present on the board.
Function
Table 3. Adapter jumper configurations
Configuration
UART
CAN
SMBUS
2.4
2.5
Isolated serial communication
The control board also features an isolated bidirectional UART communication, which is connected to the MCU
USART1 peripheral.
Tx and Rx signals passes through a digital optocoupler (U8), before being available on the DSMPS connector and the J3 connector.
The digital optocoupler needs to be supplied on the secondary side by using the VDD_iso and GND_iso pins on the main 64-pin connector. You can also directly connect two control boards, referred to two isolated supply voltages, by connecting the J3 connector of the first board to the J4 connector of the second board (or vice versa) using the provided flat cable. Thus, the VDD supply voltage of the second board becomes the isolated supply voltage (VDD_iso) to supply the digital optocoupler of the first one.
LEDs
The control board embeds three user LEDs that, in ST FW applications, are usually adopted to show the status of the power converter and if any fault occurred. The number of blinks of each LED depends on the final application.
Table 4. Control board LEDs
Diode
D2
Name
STATUS_LED
Color
Blue
Function
Status LED: it indicates whether the converter is working normally (LED on), or it is in startup state.
UM2997 - Rev 1 page 7/24
UM2997
LEDs
Diode
D3
Name
FAULT_LED
Color
Red
Function
Fault LED: it indicates that a nonrecoverable fault occurred (for example, an overcurrent, etc.) and you have to restart the board.
D4 ERROR_LED Yellow
Error LED: it indicates that a recoverable fault occurred (for example, an input undervoltage, etc.). The board restarts normal operation when the error is cleared.
UM2997 - Rev 1 page 8/24
UM2997
Getting started
3 Getting started
3.1
Note:
•
•
System requirements
Windows ® OS (7, 8, or 10), Linux ® 64-bit, or macOS ®
Debugger and programmer for STM32 (ST-LINKV3, ST-LINK/V2) with the related cable macOS ® is a trademark of Apple Inc. registered in the U.S. and other countries.
Linux
®
is a registered trademark of Linus Torvalds.
All other trademarks are the property of their respective owners.
3.2
Note:
•
•
•
Development toolchains
IAR Systems - IAR Embedded Workbench ®
Keil ® - MDK-ARM
IAR Embedded Workbench ® and MDK-ARM are available on Windows ® only.
STMicroelectronics - STM32CubeIDE
3.3
How to use the kit
3.3.1
Standalone mode
To use the STEVAL-DPSG474 standalone, execute the following procedure.
Step 1.
Choose one of the substeps below.
Step 1a.
Connect the ST-LINKV3 programmer to the STD14 (CN1) connector and connect the USB cable to the PC.
Step 1b.
Connect the adapter board to the STD14 (CN1) connector to use a programmer with a standard 20-pin JTAG connector, or to use one of the provided communication interfaces
(UART, CAN, or SMBUS).
Step 2.
Provide an external 5 V supply voltage to the J1 connector.
The green LED (D1) turns on.
3.3.2
Using another power board
To use the STEVAL-DPSG474 with another evaluation power board, follow the related user manual.
Important: Adopt an isolated programmer or a digital isolator to debug the power application running.
UM2997 - Rev 1 page 9/24
4 Schematic diagrams
Figure 5. STEVAL-DPSG474 control board: MCU circuit schematic
LEDs
+3.3V
FAULT_LED
R8
270
STATUS_LED
R11
270
R14
270
ERROR_LED
R15
270
A
D1
LED GREEN
C
GND
D2
A C
LED BLUE
GND
D3
A C
RED LED
GND
D4
A
LED YELLOW
C
GND
SWD & USER COMMUNICATION CONNECTORS
+3.3V
C24
0.1uF
GND
FDCAN1_RX/I2C1_SCL/USART3_RX
R26
47k
GND
MCU I/O
U2B
STM32G474RET6
ADC12_IN1
ADC12_IN2/OPAMP1_VINP
ADC1_IN3/OPAMP1_VOUT/COMP2_INM
ADC1_IN4/OPAMP1_VINM
DAC1_OUT1
DAC1_OUT2
DAC2_OUT1/OPAMP2_VOUT2
COMP2_INP/ADC2_IN4
HRTIM_CHA1/TIM1_CH1
HRTIM_CHA2/TIM1_CH2
HRTIM_CHB1/TIM1_CH3
HRTIM_CHB2/TIM1_CH4
SWDIO
SWCLK
SPI1_NSS/FDCAN3_TX
46
49
50
51
42
43
44
45
18
19
0
21
12
13
14
17
GND
Jumper-Female
R16
10k
J5
J6
COMP4_INP/ADC3_IN12/OPAMP2_VINP
COMP4_OUT/TIM3_CH4
ADC2_IN12/COMP4_INM
SPI1_SCK/FDCAN3_RX
HRTIM_EEV7/SPI1_MISO
I2C1_SMBA/SPI1_MOSI/HRTIM_EEV6
USART1_TX
USART1_RX
FDCAN1_RX/I2C1_SCL/USART3_RX
FDCAN1_TX/I2C1_SDA/USART3_TX
ERROR_LED
COMP6_INP
HRTIM_CHC1
HRTIM_CHC2/TIM1_CH1N
HRTIM_CHD1/TIM1_CH2N
HRTIM_CHD2/TIM1_CH3N
Con2_Strp_male_SMD
34
35
36
37
61
62
30
33
57
58
59
60
24
25
26
56
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8-BOOT0
PB9
PB10
PB11
PB12
PB13
PB14
PB15
1 of 2
PC8
PC9
PC10
PC11
PC12
PC13
PC14-OSC32_IN
PC15-OSC32_OUT
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PD2
PF0-OSC_IN
PF1-OSC_OUT
PG10-NRST
55
5
6
3
4
54
2
40
41
52
53
22
23
38
39
8
9
10
11
7
NRST
ADC12_IN6/COMP3_INM
ADC12_IN7/COMP3_INP
ADC12_IN8/COMP3_OUT
FAULT_LED
ADC2_IN5
ADC2_IN11/OPAMP2_VINM
HRTIM_CHF1/TIM8_CH1
HRTIM_CHF2/TIM8_CH2
HRTIM_CHE1/TIM8_CH3
HRTIM_CHE2/TIM8_CH4
HRTIM_FLT6
HRTIM_EEV2
HRTIM_EEV1COMP2_OUT/HRTIM_FLT1
TIM1_CH1N
PC14
DEBUG_PIN
ADC_1/DIFF_ADC_1+
ADC_2/DIFF_ADC_1-/OP-AMP_2+
ADC_3/DIFF_ADC_2+/OP-AMP_2_OUT/COMP_1_NM
ADC_4/DIFF_ADC_2-/OP-AMP_2-
STATUS_LED C9
6.8pF
GND
GND
Y1
24MHz
GND
C10
6.8pF
ADC_5
ADC_6/OP-AMP_1-
COMP_2_INP/ADC_12/OP-AMP_1+
ADC_7/COMP_2_INM
GND
+3.3V
9
11
13
5
7
1
3
CN1
2
4
6
8
10
12
14
SWDIO
SWCLK
I2C1_SMBA/SPI1_MOSI/HRTIM_EEV6
NRST
FDCAN1_TX/I2C1_SDA/USART3_TX
ST-LInk V3 & Adapter CON
R32
47k
VDDA
R21
0
C16
1uF
A_GND
C20
0.1uF
C17
0.1uF
C21
0.1uF
+3.3V
C15
0.1uF
C22
0.1uF
GND
C23
0.1uF
1
28
16
32
48
64
VBAT
VREF+
VDD1
VDD2
VDD3
VDD4
MCU VDD
U2A
STM32G474RET6
2 of 2
VDDA
VSSA
VSS1
VSS2
VSS3
VSS4
29
27
15
31
47
63
GND
VDDA
C18
0.1uF
A_GND
ADC_8/COMP_4_INM
ADC_9/COMP_4_INP
ADC_10/COMP_4_OUT
COMP_1_INP/ADC_11
GND GND GND
To place capacitors as close as possible to each Vdd Pin
R17
10R
R18
10R
R19
10R
R20
10R
R9
10R
R10
10R
R12
10R
R13
10R
R22
10R
R23
10R
R24
10R
R25
10R
TP14
TP18
TP21
ANALOG INPUTS
C5
10pF
C11
10pF
C25
10pF
TP15
C6
10pF
A_GND
TP19
C12
10pF
A_GND
TP22
C26
10pF
TP16
TP25
TP23
C7
10pF
C13
10pF
C27
10pF
TP17
TP20
TP24
C8
10pF
A_GND
C14
10pF
A_GND
C28
10pF
ADC12_IN1
ADC12_IN2/OPAMP1_VINP
ADC1_IN3/OPAMP1_VOUT/COMP2_INM
ADC1_IN4/OPAMP1_VINM
U3
DA108S1RL
VDDA
ADC2_IN5
ADC2_IN11/OPAMP2_VINM
COMP4_INP/ADC3_IN12/OPAMP2_VINP
ADC2_IN12/COMP4_INM
U4
DA108S1RL
VDDA
ADC12_IN6/COMP3_INM
ADC12_IN7/COMP3_INP
ADC12_IN8/COMP3_OUT
COMP2_INP/ADC2_IN4
U5
DA108S1RL
A_GND
GND
ESD PROTECTIONS
SWDIO
SWCLK
1
2
3
I_O1
GND
I_O2
I_O4
I_O3
IC1
ESDALC6V1W5
5 FDCAN1_RX/I2C1_SCL/USART3_RX
4
FDCAN1_TX/I2C1_SDA/USART3_TX
D5
NRST
GND SMAJ5.0A-TR C37
0.1uF
GND
J1
2
1
Ext Supply
GND
+5V
GND
VOLTAGE REGULATOR
C30
10uF
3
U6
Vin
LD1117S33CTR
2
Vout_2
Vout_4
GND
4
1
GND
R29
0
C36
0.1uF
+ C31
100uF16V
TP45
C32
0.1uF
+3.3V
C19
470nF
1
L1
470 OHM
2
C33
10uF
TP46
C34
10nF
GND
VDDA
C35
470nF
A_GND
GND
J7
Con2
GND CON
Stripline male 2x1 2.54mm
GND
R30
0
A_GND
A_GND
VDDA
COMP_3_INP
R28
10R
DSMPS CONNECTOR PINS
PWM_1
PWM_2
PWM_3
PWM_4
PWM_5
PWM_6
PWM_7
PWM_8
PWM_9
PWM_10
PWM_11
PWM_12
FAULT_1
PWM SIGNALS
HRTIM_CHA1/TIM1_CH1
HRTIM_CHA2/TIM1_CH2
HRTIM_CHB1/TIM1_CH3
HRTIM_CHB2/TIM1_CH4
HRTIM_CHC1
HRTIM_CHC2/TIM1_CH1N
HRTIM_CHD1/TIM1_CH2N
HRTIM_CHD2/TIM1_CH3N
HRTIM_CHE1/TIM8_CH3
HRTIM_CHE2/TIM8_CH4
HRTIM_CHF1/TIM8_CH1
HRTIM_CHF2/TIM8_CH2
HRTIM_FLT6
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
TP9
TP10
TP11
TP12
TP13
CAN_1_TX/SPI_NSS
CAN_1_RX/SPI_SCK
SMBus_SCL/UI_USART_RX/CAN_2_RX
SMBus_SDA/UI_USART_TX/CAN_2_TX
SMBus_SMBA/SPI_MOSI/EEV_4
COMMUNICATION
MCU_USART_ISO_TX
MCU_USART_ISO_RX
SPI1_NSS/FDCAN3_TX
SPI1_SCK/FDCAN3_RX
TP38
TP39
FDCAN1_RX/I2C1_SCL/USART3_RX
FDCAN1_TX/I2C1_SDA/USART3_TX
I2C1_SMBA/SPI1_MOSI/HRTIM_EEV6
USART1_TX
USART1_RX
TP43
TP44
TP40
TP41
TP42
GPIO_1/GP_PWM_1
GPIO_2/COMP_2_OUT/GP_PWM_2
GPIO_3/COMP_1_OUT/FAULT_2
GPIO_4/EEV_1
GPIO_5/DAC_1
GPIO_6/DAC_2
GPIO_7/DAC_3/OP-AMP_1_OUT
GPIO_8/EEV_2
GPIO_9/EEV_3/SPI_MISO
GPIO_10
GPIO AND ALTERNATE FUNCTIONS
TIM1_CH1N
COMP4_OUT/TIM3_CH4
COMP2_OUT/HRTIM_FLT1
HRTIM_EEV1
DAC1_OUT1
DAC1_OUT2
DAC2_OUT1/OPAMP2_VOUT
HRTIM_EEV2
HRTIM_EEV7/SPI1_MISO
PC14
TP27
TP28
TP29
TP30
TP31
TP32
TP33
TP34
TP35
TP36
DEBUG_PIN
TP37
+5V
SUPPLY VOLTAGES
+5V
+3.3V
+3.3V
A_VDD
VDDA
C29
10pF
TP26
COMP6_INP
U7
VDDA
A_GND
A_GND
Figure 6. STEVAL-DPSG474 control board: D-SMPS connector circuit schematic
P1
VDD_iso
USART_TX_iso
CAN_1_TX/SPI_NSS
SMBus_SCL/UI_USART_RX/CAN_2_RX
SMBus_SDA/UI_USART_TX/CAN_2_TX
+5V
FAULT_1
PWM_1
PWM_3
PWM_5
PWM_7
PWM_9
PWM_11
GPIO_2/COMP_2_OUT/GP_PWM_2
GPIO_4/EEV_1
GPIO_5/DAC_1
GPIO_7/DAC_3/OP-AMP_1_OUT
GPIO_9/EEV_3/SPI_MISO
ADC_1/DIFF_ADC_1+
ADC_2/DIFF_ADC_1-/OP-AMP_2+
ADC_3/DIFF_ADC_2+/OP-AMP_2_OUT/COMP_1_NM
ADC_4/DIFF_ADC_2-/OP-AMP_2-
ADC_5
ADC_6/OP-AMP_1-
COMP_2_INP/ADC_12/OP-AMP_1+
ADC_7/COMP_2_INM
ADC_8/COMP_4_INM
ADC_9/COMP_4_INP
ADC_10/COMP_4_OUT
COMP_1_INP/ADC_11
COMP_3_INP
A25
A26
A27
A28
A29
A30
A31
A32
A17
A18
A19
A20
A21
A22
A23
A24
A9
A10
A11
A12
A13
A14
A15
A16
A5
A6
A7
A8
A1
A2
A3
A4
B25
B26
B27
B28
B29
B30
B31
B32
B17
B18
B19
B20
B21
B22
B23
B24
B9
B10
B11
B12
B13
B14
B15
B16
B5
B6
B7
B8
B1
B2
B3
B4
USART_RX_iso
CAN_1_RX/SPI_SCK
GND_iso
SMBus_SMBA/SPI_MOSI/EEV_4
+3.3V
GPIO_1/GP_PWM_1
PWM_2
PWM_4
PWM_6
PWM_8
PWM_10
PWM_12
GPIO_3/COMP_1_OUT/FAULT_2
GPIO_6/DAC_2
GPIO_8/EEV_2
GPIO_10
A_VDD
GND
GND
Digital Power Connector
A_GND
VDD_iso
VDD_iso
Figure 7. STEVAL-DPSG474 control board: isolated communication circuit schematic
MCU_USART_ISO_RX
MCU_USART_ISO_TX
GND
R1
47R
MCU_USART_ISO_RX
GND
MCU_USART_ISO_TX
R5 39
R2
C4
15pF
0
4
A2
UART OPTOCOUPLER
+3.3V
C1
1
0.1uF
2
GND
1
GND1/K2
2
3
Vout1
VDD1
U8
A1
VDD2
Vout2
GND2/K1
8
7
6
5
VDD_iso
C2
1 2
0.1uF
GND_iso
R3 39
R4
0
ACSL-6210 R31
47R
USART_RX_iso
USART_TX_iso
C3
15pF
GND_iso
GND_iso
CONNECTION BETWEEN TWO CONTROL BOARDS
VDD_iso
USART_TX_iso
USART_RX_iso 3
4
1
2
J3 J4
3
4
1
2
+3.3V
MCU_USART_ISO_RX
MCU_USART_ISO_TX
GND_iso COM ISO COM GND
TO PLACE ON THE RIGHT AND ON THE LEFT SIDE OF THE BOARD, RESPECTIVELY
USART_RX_iso
USART_TX_iso
JTAG
+3.3V
J12
JTDI_JTAG_ADP
JTMS_ADP
JTCK_ADP
JTDO_ADP
RESET#_BTN
9
11
13
15
17
19
5
7
1
3
10
12
14
16
6
8
2
4
18
20
CON20-JTAG
Male Connector 2x10
Pitch 2.54 mm
Tyco Electronics 2 -1634688-0
RS: 473-8282
Farnell: 8395942
+3.3V
GND
Figure 8. STEVAL-DPSG474 adapter board circuit schematic
SWD USER-COMMUNICATION USER COMMUNICATION CONFIG
+3.3V
C1
0.1uF
GND
I2C_SCL/USART_RX/CAN_RX
GND
9
11
13
5
7
1
3
CN1
2
4
6
8
10
12
14
JTMS_ADP
JTCK_ADP
I2C_SMBA
RESET#_ADP
I2C_SDA/USART_TX/CAN_TX
ST-LInk V3 & Adapter CON
+3.3V
R1
4.7k
R2
4.7k
SMBUS_SDA
J8
SMBUS_SCL
1
2
3
J9
J11
1
2
3
USART_TX
I2C_SDA/USART_TX/CAN_TX
CAN_TX
USART_RX
I2C_SCL/USART_RX/CAN_RX
CAN_RX
J13
Jumper_Female
J14
Jumper_Female
CAN
GND
2 1
S1
RST
3 4
CAN_TX
+3.3V
C8
0.1uF
CAN_RX
3
4
1
2
U2
D
J15 default setting: jumper mounted
Jumper_Female
GND
NC
CANH
8
7
J7
VCC
R
CANL
NC1
6
5
R4
120R
GND
1
6
2
7
3
8
4
9
5
SN65HVD232D
RS: 461- 9771
R6
0
N.M.
R5
0
CAN COMMUNICATION
+3.3V
GND GND
GND
DB9-male connector
P2
RESET BUTTON RS-232
+3.3V
R14
270
R3
10k
RESET#_BTN
C5
0.1uF
D1
RED LED default setting: jumper mounted
1 J6
J16
2
JP_JTDI
RESET#_ADP
Jumper_Female
C4
0.1uF
C6
0.1uF
C7
0.1uF
SMBUS
+3.3V
SMBUS_SCL
SMBUS_SDA
C3 0.1uF
1 2
GND
7
8
5
6
3
4
1
2
U1
ST3232EBTR
C1P
VP
C1M
C2P
C2M
VM
T2OUT
R2IN
VCC
GND
T1OUT
R1IN
R1OUT
T1IN
T2IN
R2OUT
16
15
14
13
12
11
10
9
GND place reset button in the external part of the board
GND
J2
1
3
5
2
4
6 con6-2x3-strip-male
I2C_SMBA
GND
+3.3V
C2
0.1uF
GND RD
TD
GND
SERIAL COMMUNICATION
1
6
2
7
3
8
4
9
5
P1
DB9-Female
5
UM2997
Bill of materials
Bill of materials
Table 5. STEVAL-DPSG474 bill of materials
Item Q.ty
1 1
2 1
Ref.
-
Part/value Description Manufacturer
Control board ST
Adapter board ST
Order code
Not available for separate sale
Not available for separate sale
Table 6. Control board bill of materials
Item Q.ty
1 13
Ref.
C1 C2 C15
C17 C18
C20 C21
C22 C23
C24 C32
C36 C37
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
2
13
2
1
2
2
1
1
1
1
1
1
1
1
1
1
±10%
Part/value
0.1uF 0603 (1608 Metric) 50V
Description
CAP CER 0.1UF 50V
X7R 0603
Manufacturer
Wurth Electronics
Inc.
Order code
885012206095
C3 C4
15pF 0603 (1608 Metric) 50V
±5%
C5 C6 C7 C8
C11 C12
C13 C14
C25 C26
C27 C28
C29
10pF 0603 (1608 Metric) 50
±5%
C9 C10
C16
C19 C35
C30 C33
C31
C34
CN1
D1
D2
D3
D4
D5
IC1
J1
6.8pF 0603 (1608 Metric) 50V
0.5pF
1uF 0603 (1608 Metric) 25V
±10%
100uF Radial, Can - SMD 16V
±20%
CAP CER 15pF 50V
COG 0603
CAPACITOR
CERAMIC SMD 0603
CAP CER 6.8PF 50V
C0G/NP0 0603
CAP CER 1UF 25V
X7R 0603
470nF 0603 (1608 Metric) 25V
±10%
CAP CER 0.47UF
25V X7R 0603
10uF 0805 (2012 Metric) 16V
±20%
CAP CER 10UF 16V
X5R 0805
CAP ALUM 100UF
20% 16V SMD
Wurth Electronics
Inc.
Wurth Elektronik
Inc.
Wurth Electronics
Inc.
Wurth Electronics
Inc.
Wurth Electronics
Inc.
Wurth Electronics
Inc.
Panasonic
Electronic
Components
Wurth Elektronik
Inc.
885012006052
885012006051
885012006050
885012206076
885012206075
885012107014
EEE-FT1C101AR
10nF 0603 (1608 Metric) 50V
±10%
ST-LInk V3 & Adapter CON
LED GREEN 0603 (1608
Metric) 20mA
Ceramic Multilayer
Capacitors X7R
CONN HEADER
SMD 14POS 1.27MM
LED GREEN CLEAR
0603 SMD
Samtec Inc.
Würth Elektronik
885012206089
FTSH-107-01-F-DV-
K-P-TR
150060GS75000
LED BLUE 0603 (1608 Metric)
20mA
RED LED 0603 (1608 Metric)
20mA
LED YELLOW 0603 (1608
Metric) 20mA
SMAJ5.0A-TR, SMA F2
ESDALC6V1W5, SOT323-5L
Ext Supply
LED BLUE 0603
SMD
LED RED CLEAR
0603 SMD
LED YELLOW
CLEAR 0603 SMD
400 W TVS in SMA
Vishay
Semiconductor
Opto Division
Wurth Electronics
Inc.
Wurth Electronics
Inc.
ST
Quad Transil array for
ESD protection
ST
VLMB1310-GS08
150060RS75000
150060YS75000
SMAJ5.0A-TR
ESDALC6V1W5
CONN TERM BLOCK
2.54MM 2POS
Phoenix Contact 1725656
UM2997 - Rev 1 page 14/24
UM2997 - Rev 1
UM2997
Bill of materials
Item Q.ty
18
19
20
21
22
23
24
25
26
27
28
29
1
1
1
1
1
1
1
2
4
2
4
13
J3
J4
J5
J6
J7
L1
P1
Ref.
R1 R31
R2 R4 R21
R30
R3 R5
R8 R11 R14
R15
R9 R10 R12
R13 R17
R18 R19
R20 R22
R23 R24
R25 R28
COM ISO
COM
Jumper-Female
Con2_Strp_male_SMD
Con2
Part/value
470 OHM 0402 (1005 Metric)
Digital Power Connector
47R 0603 (1608 Metric) 0.1W,
1/10W ±1%
0 0603 (1608 Metric) 0.1W,
1/10W ±1%
39 0603 (1608 Metric) 0.1W,
1/10W ±1%
270 0603 (1608 Metric) 0.1W,
1/10W ±1%
Description
CONN FMALE-ON-
BRD 4POS VERT
T/H
CONN FMALE-ON-
BRD 4POS VERT
T/H
CONN JUMPER
SHORTING 1.27MM
GOLD
CONN HEADER
SMD 2POS 1.27MM
CONN HEADER
2POS VERT T/H
FERRITE BEAD 470
OHM 0402 1LN
Connector Erni 90°
384241 32X2 male
CHIP RESISTOR
SMD 1% 1/10W 0603
CHIP RESISTOR
SMD 1% 1/10W 0603
Manufacturer
TE Connectivity
AMP Connectors
TE Connectivity
AMP Connectors
Sullins Connector
Solutions
Harwin Inc.
Amphenol FCI
Wurth Electronics
Inc.
ERNI
Yageo
Yageo
RES SMD 39 OHM
1% 1/10W 0603
Panasonic
Electronic
Components
CHIP RESISTOR
SMD 1% 1/10W 0603
TE Connectivity
Order code
215079-4
215079-4
NPB02SVAN-RC
M50-3630242R
77311-118-02LF
7427927141
384241
RC0603FR-0747RL
RC0603FR-070RL
ERJ-3EKF39R0V
CRGP0603F270R
10R 0603 (1608 Metric) 0.1W,
1/10W ±1%
CHIP RESISTOR
SMD 1% 1/10W 0603
Stackpole
Electronics
RMCF0603FT10R0
30
31
32
1
2
1
R16
R26 R32
R29
10k 0603 (1608 Metric) 0.1W,
1/10W ±1%
47k 0603 (1608 Metric) 0.1W,
1/10W ±1%
0 1206 (3216 Metric) 0.25W,
1/4W ±1%
RES SMD 10K OHM
1% 1/10W 0603
RES SMD 47K OHM
1% 1/10W 0603
CHIP RESISTOR
SMD 1% 1/4W 1206
Yageo
Yageo
Yageo
RC0603FR-0710KL
RC0603FR-0747KL
RC1206JR-070RL
33 46
TP1 TP2
TP3 TP4
TP5 TP6
TP7 TP8
TP9 TP10
TP11 TP12
TP13 TP14
TP15 TP16
TP17 TP18
TP19 TP20
TP21 TP22
TP23 TP24
TP25 TP26
TP27 TP28
TP29 TP30
TP31 TP32
TP33 TP34
TP35 TP36
TP37 TP38
TP39 TP40
5001 0.100" Dia x 0.180" L
(2.54mm x 4.57mm)
TEST POINT PC
MINI .040"D BLACK
Keystone
Electronics
5001 page 15/24
UM2997 - Rev 1
UM2997
Bill of materials
Item Q.ty
Ref.
TP41 TP42
TP43 TP44
TP45 TP46
34
35
36
37
38
39
40
1
3
1
1
1
1
1
Part/value Description Manufacturer Order code
U2
U3 U4 U5
U6
U7
U8
STM32G474RET6, LQFP 64
10x10x1.4 mm
DA108S1RL, SO-8
LD1117S33CTR, SOT-223
BAR43SFILM, SOT23
ACSL-6210 8-SOIC (0.154",
3.90mm Width)
Y1
24MHz 4-SMD, No Lead,
(3.20 x 2.50mm)
Micro-Match
4 ways,
9.9"",
250mm,
1.27mm
Cable
Arm® Cortex®-M4
32b MCU+FPU,
512KB Flash, 150
MHz, 128KB SRAM
Diode array of 8 diodes
Adjustable and fixed low drop positive voltage regulator
ST
ST
ST
STM32G474RET6
DA108S1RL
LD1117S33CTR
30 V, 100 mA Vf
0.33 V @ 2 mA
SMD general purpose signal Schottky diode
ST BAR43SFILM
OPTOISO 2.5KV
2CH OPEN COLL
8SO
Broadcom Limited ACSL-6210-50RE
CRYSTAL 24.00 MHZ
9.0PF SMD
EPSON
TSX-3225
24.0000MF15X-AC6
AMP Micro-Match TE Connectivity 1483350-3
Item Q.ty
Ref.
1 8
C1 C2
C3 C4
C5 C6
C7 C8
2
3
4
5
6
7
8
9
10
11
12
1
1
1
3
2
1
2
2
1
1
2
(1608 Metric)
Table 7. Adapter board bill of materials
Part/value
0.1uF 50 V ±10% 0603
0603
Description
CAP CER 0.1UF 50V X7R
Manufacturer
Wurth Electronics
Inc.
CN1
D1
J2
ST-LInk V3 & Adapter
CON
RED LED 0603 (1608
Metric) 20 mA con6-2x3-strip-male
CONN HEADER SMD
14POS 1.27MM
LED RED CLEAR 0603
SMD
CONN HEADER .100 DUAL
STR 6POS
Samtec Inc.
Wurth Electronics
Inc.
Sullins Connector
Solutions
J6 J7
J8
JP_JTDI
J9 J11 JP_JTDI
Amphenol FCI
Amphenol FCI
J12
P1
P2
R1 R2
CON20-JTAG
J13 J14 Jumper_Female
J15 J16 Jumper_Female
DB9-Female
CONN IDC BOX HEADER
2.54MM 20POS
CONN JUMPER
SHORTING .100" GOLD
CONN JUMPER
SHORTING .100" GOLD
DB9-male connector
4.7k ±10% 0603 (1608
Metric) 0.1W, 1/10W ±1%
CONN D-SUB PLUG 9POS
VERT SOLDER
RES SMD 4.7K OHM 1%
1/10W 0603
Tyco Electronics
Sullins Connector
Solutions
Sullins Connector
Solutions
Wurth Electronics
Inc.
Wurth Electronics
Inc.
Stackpole
Electronics
Order code
885012206095
FTSH-107-01-F-DV-K-
P-TR
150060RS75000
PEC03DFAN
77311-118-02LF
77311-118-03LF
2-1634688-0
QPC02SXGN-RC
QPC02SXGN-RC
618009231321
618009231421
RMCF0603FT4K70 page 16/24
UM2997
Bill of materials
Item Q.ty
Ref.
13 1 R3
14
15
16
17
18
19
20
21
1
1
1
1
1
1
1
1
R4
R5
R6
R14
S1
U1
U2
Part/value
10k 0603 (1608 Metric)
0.1W, 1/10W ±1%
120R 0603 (1608 Metric)
0.1W, 1/10W ±1%
0 0603 (1608 Metric)
0.1W, 1/10W ±1%
0 0603 (1608 Metric)
0.1W, 1/10W ±1%
270 0603 (1608 Metric)
0.1W, 1/10W ±1%
RST
ST3232EBTR,
TSSOP-16L
SN65HVD232D
Description
RES SMD 10K OHM 1%
1/10W 0603
RES SMD 120R OHM 1%
1/10W 0603
CHIP RESISTOR SMD 1%
1/10W 0603
CHIP RESISTOR SMD 1%
1/10W 0603 (not mounted)
CHIP RESISTOR SMD 1%
1/10W 0603
SWITCH TACTILE SPST-
NO 0.05A 12V
15 kV ESD protection, 3 to
5.5 V low power, up to 250 kbps, RS-232 drivers and receivers
IC TRANSCEIVER HALF
1/1 8SOIC
FLAT CABLE
ST
Manufacturer
Yageo
Yageo
Yageo
Yageo
TE Connectivity
Wurth Electronics
Inc.
Texas Instruments
Samtec Inc.
Order code
RC0603FR-0710KL
RC0603FR-07120RL
RC0603FR-070RL
RC0603FR-070RL
CRGP0603F270R
430483025816
ST3232EBTR
SN65HVD232D
FFSD-07-D-06.00-01-N
UM2997 - Rev 1 page 17/24
6
UM2997
Kit versions
Kit versions
Table 8. STEVAL-DPSG474 versions
PCB version
STEVAL$DPSG474A
Schematic diagrams
STEVAL$DPSG474A schematic diagrams
Bill of materials
STEVAL$DPSG474A bill of materials
1. This code identifies the STEVAL-DPSG474 evaluation kit first version. It is printed on the board PCB. The kit includes the STEVAL-DPSG474M control board, whose first version is identified by the STEVAL$DPSG474MA code, and the
STEVAL-DPSADP02, whose first version is identified by the STEVAL$DPSADP02A code.
UM2997 - Rev 1 page 18/24
7
UM2997
Regulatory compliance information
Regulatory compliance information
Formal Notice Required by the U.S. Federal Communications Commission
FCC NOTICE
This kit is designed to allow:
(1) Product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and
(2) Software developers to write software applications for use with the end product.
This kit is not a finished product and when assembled may not be resold or otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference. Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter 3.1.2.
Formal Product Notice Required by Industry Canada Innovation, Science and Economic Development
Canada compliance :
For evaluation purposes only. This kit generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to Industry Canada (IC) rules.
À des fins d'évaluation uniquement. Ce kit génère, utilise et peut émettre de l'énergie radiofréquence et n'a pas
été testé pour sa conformité aux limites des appareils informatiques conformément aux règles d'Industrie Canada
(IC).
Formal product notice required by EU
This device is in conformity with the essential requirements of the Directive 2014/30/EU (EMC) and of the
Directive 2015/863/EU (RoHS).
UM2997 - Rev 1 page 19/24
Revision history
Date
12-Apr-2022
Table 9. Document revision history
Revision
1 Initial release.
Changes
UM2997
UM2997 - Rev 1 page 20/24
UM2997
Contents
Contents
UM2997 - Rev 1 page 21/24
UM2997
List of tables
List of tables
UM2997 - Rev 1 page 22/24
UM2997
List of figures
List of figures
UM2997 - Rev 1 page 23/24
UM2997
IMPORTANT NOTICE – READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgment.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. For additional information about ST trademarks, refer to www.st.com/trademarks . All other product or service names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2022 STMicroelectronics – All rights reserved
UM2997 - Rev 1 page 24/24
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