Introduction
The B-G474E-DPOW1 Discovery kit is a digital power solution and a complete demonstration and development platform for the
STMicroelectronics Arm® Cortex®-M4 core-based STM32G474RET6 microcontroller. Leveraging the new HRTimer-oriented
features, 96 Kbytes of embedded RAM, math accelerator functions and USB PD3.0 offered by STM32G474RET6, the B-
G474E-DPOW1 Discovery kit helps the user to prototype applications with digital power such as a buck-boost converter, RGB
power LED lighting or a class-D audio amplifier, based on the USB 2.0 FS Type-C™ connector interface. The B-G474E-DPOW1
Discovery kit does not require any separate probe as it integrates the STLINK-V3E debugger and programmer.
The STM32G474RET6 microcontroller features FMAC and CORDIC mathematical HW accelerator, five 12-bits ADCs (5 MSPS)
up to 42 channels and with resolution up to 16-bit with hardware oversampling, seven 12-bit DAC channels, seven ultra-fast rail-
to-rail analog comparators, six operational amplifiers with PGA mode, seventeen timers (with various advanced functionalities),
four I2C Fast mode plus, five USARTs, one LPUART, four SPIs, one SAI, three FDCAN controller, one USB 2.0 full-speed
interface and a UCPD block allowing connection to USB Type-C™ compatible with USB Power Delivery, a true random number
generator, one FMC parallel synchronous interface, a quad-SPI memory interface, SWD and JTAG debugging support.
This Discovery kit offers everything required for users to start and develop applications. The hardware features on the board
help to evaluate the following peripherals: USB Type-C™ compatible with USB PD3.0, HRTimer evaluation, digital power for
buck-boost application with Class-D audio amplifier and RGB power LED lighting. Thanks to its two 32-pin 2.54 mm pitch
extension connectors, it also enables users to plug it on a breadboard for prototyping. The integrated STLINK-V3E provides an
embedded in-circuit debugger and programmer for the STM32 MCU.
The B-G474E-DPOW1 Discovery kit comes with the STM32 comprehensive free software libraries and examples available with
the STM32Cube package, as well as a direct access to the Arm® Mbed Enabled™ on-line resources at http://mbed.org.
Figure 1. B-G474E-DPOW1 top view Figure 2. B-G474E-DPOW1 bottom view
Pictures are not contractual.
Discovery kit with STM32G474RE MCU
UM2577
User manual
UM2577 - Rev 1 - July 2019
For further information contact your local STMicroelectronics sales office. www.st.com
1Features
• STM32G474RET6 Arm® Cortex®-M4 core-based microcontroller, featuring 512 Kbytes of Flash memory and
128 Kbytes of SRAM, in LQFP64 package
• USB Type-C™ with USB 2.0 FS interface compatible with USB PD3.0
• RGB power LED for a bright lighting
• Digital power buck-boost converter with internal or external Input voltage and with on-board resistor loads
• Audio class-D amplifier capable
• 4 user LEDs
• 3 LEDs for power and ST-LINK communication
• 4-direction joystick with a selection button
• Reset push-button
• Board connectors:
– USB Type-C™
– USB micro-B
– 2 x 32-pin header, 2.54 mm pitch, daughterboard extension connector for breadboard connection
• Flexible power-supply options: ST-LINK USB VBUS or USB Type-C™ VBUS or external source
• On-board STLINK-V3E debugger/programmer with USB re-enumeration capability: mass storage, Virtual
COM port, and debug port
• Comprehensive free software libraries and examples available with the STM32CubeG4 MCU package
• Support of a wide choice of Integrated Development Environments (IDEs) including IAR™, Keil®, and GCC-
based IDEs
• Handled by STM32CubeMonitor-UCPD software tool
Note: Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
UM2577
Features
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