Introduction

STM32Cube is an STMicroelectronics original initiative to significantly improve designer's productivity by reducing development

effort, time and cost. STM32Cube covers the whole STM32 portfolio.

STM32Cube includes:

• A set of user-friendly software development tools to cover project development from the conception to the realization,

among which:

– STM32CubeMX, a graphical software configuration tool that allows the automatic generation of C initialization code

using graphical wizards

– STM32CubeIDE, an all-in-one development tool with IP configuration, code generation, code compilation, and debug

features

– STM32CubeProgrammer (STM32CubeProg), a programming tool available in graphical and command-line versions

– STM32CubeMonitor-Power (STM32CubeMonPwr), a monitoring tool to measure and help in the optimization of the

power consumption of the MCU

– STM32CubeMonitor-UCPD (STM32CubeMonUCPD), a monitoring tool to measure and help in the configuration of

USB Type-C

™

and Power Delivery applications

• STM32Cube MCU & MPU Packages, comprehensive embedded-software platforms specific to each microcontroller and

microprocessor series (such as STM32CubeG4 for the STM32G4 Series), which include:

– STM32Cube hardware abstraction layer (HAL), ensuring maximized portability across the STM32 portfolio

– STM32Cube low-layer APIs, ensuring the best performance and footprints with a high degree of user control over the

– A consistent set of middleware components such as FAT file system, RTOS, USB Device, and USB Power Delivery

– All embedded software utilities with full sets of peripheral and applicative examples

• STM32Cube Expansion Packages, which contain embedded software components that complement the functionalities of

the STM32Cube MCU & MPU Packages with:

– Middleware extensions and applicative layers

– Examples running on some specific STMicroelectronics development boards

The STM32CubeG4 demonstration firmware running on the STM32G474E-EVAL Evaluation board is built around the

STM32Cube hardware abstraction layer (HAL) and low-layer (LL) APIs, and board support package (BSP) components. It

embeds several applications that demonstrate various features of the STM32G474QET6 device and exercise some peripherals

of the STM32G474E-EVAL Evaluation board. These applications are:

• White LED application

• Mathematics application

• UCPD application

• Low-power application

• Image viewer application

• Audio application

• Calendar application

• Thermometer application

• File browser application

STM32CubeG4 STM32G474E-EVAL demonstration firmware

UM2583

User manual

UM2583 - Rev 1 - June 2019

For further information contact your local STMicroelectronics sales office.

www.st.com

1 STM32CubeG4 main features

STM32CubeG4 gathers, in a single package, all the generic embedded software components, required to develop

an application on STM32G4 microcontrollers. In line with the STM32Cube initiative, this set of components is

highly portable, not only to the STM32G4 Series but also to other STM32 series.

STM32CubeG4 is fully compatible with the STM32CubeMX code generator that allows the generation of

initialization code.

The package includes a driver layer (HAL) proposing a set of abstraction services and a low-level hardware layer

(LL) proposing a set of register-level functions, together with an extensive set of examples running on

STMicroelectronics boards. HAL is available in open-source BSD license for user convenience.

The STM32CubeG4 MCU Package also contains a set of middleware components with the corresponding

examples. They come in free user-friendly license terms:

• FAT file system based on open source FatFS solution

•

CMSIS-RTOS implementation with FreeRTOS

™

open source solution

• USB PD Devices and Core libraries

• USB Device library

Several applications and demonstrations implementing all these middleware components are also provided in the

STM32CubeG4 MCU Package.

The block diagram of STM32Cube is shown in Figure 1.

Figure 1. STM32CubeG4 firmware components

Middleware level

(1)

Utilities

Application level demonstrations

HAL and LL APIs

(1) The set of middleware components depends on the product Series.

User

application

Evaluation

boards

Discovery

boards

STM32 Nucleo

boards

Dedicated

boards

USB PD FAT file systemRTOS

Hardware abstraction layer APIs

(HAL)

Board Support Package (BSP) Low-layer APIs (LL)

Utilities

CMSIS

USB Device

The demonstration firmware for the STM32G474E-EVAL Evaluation board comes on top of the STM32CubeG4

MCU Package, which is based on a modular architecture allowing the reuse of software components separately in

standalone applications. All modules are managed by the STM32Cube demonstration kernel, which allows the

addition of new modules dynamically and access to the storage, graphical, and components common resources.

The demonstration firmware is built on the light kernel and services provided by the BSP as well as components

based on the STM32Cube HAL It makes extensive use of the STM32G4 device capability to offer a wide scope of

usages.

The STM32G4 microcontrollers are based on the Arm

32-bit Cortex

-M4 processor.

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

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STM32CubeG4 main features

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