STM32F401RB (64k RAM. 128k Flash)

Hardware

Platform ST STM32: The STM32 family of 32-bit Flash MCUs based on the ARM Cortex-M processor is designed to offer new degrees of freedom to MCU users. It offers a 32-bit product range that combines very high performance, real-time capabilities, digital signal processing, and low-power, low-voltage operation, while maintaining full integration and ease of development.

Microcontroller

STM32F401RB

Frequency

84MHz

Flash

128KB

RAM

64KB

Vendor

Generic

Configuration

Please use genericSTM32F401RB ID for board option in “platformio.ini” (Project Configuration File):

[env:genericSTM32F401RB]
platform = ststm32
board = genericSTM32F401RB

You can override default STM32F401RB (64k RAM. 128k Flash) settings per build environment using board_*** option, where *** is a JSON object path from board manifest genericSTM32F401RB.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:genericSTM32F401RB]
platform = ststm32
board = genericSTM32F401RB

; change microcontroller
board_build.mcu = stm32f401rb

; change MCU frequency
board_build.f_cpu = 84000000L

Uploading

STM32F401RB (64k RAM. 128k Flash) supports the next uploading protocols:

  • blackmagic

  • dfu

  • jlink

  • serial

  • stlink

Default protocol is serial

You can change upload protocol using upload_protocol option:

[env:genericSTM32F401RB]
platform = ststm32
board = genericSTM32F401RB

upload_protocol = serial

Debugging

PIO Unified Debugger - “1-click” solution for debugging with a zero configuration.

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions and configuration information.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

STM32F401RB (64k RAM. 128k Flash) does not have on-board debug probe and IS NOT READY for debugging. You will need to use/buy one of external probe listed below.

Compatible Tools

On-board

Default

Black Magic Probe

Yes

J-LINK

ST-LINK

Frameworks

Name

Description

Arduino

Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences.

CMSIS

The ARM Cortex Microcontroller Software Interface Standard (CMSIS) is a vendor-independent hardware abstraction layer for the Cortex-M processor series and specifies debugger interfaces. The CMSIS enables consistent and simple software interfaces to the processor for interface peripherals, real-time operating systems, and middleware. It simplifies software re-use, reducing the learning curve for new microcontroller developers and cutting the time-to-market for devices.

SPL

The ST Standard Peripheral Library provides a set of functions for handling the peripherals on the STM32 Cortex-M3 family. The idea is to save the user (the new user, in particular) having to deal directly with the registers.

STM32Cube

STM32Cube embedded software libraries, including: The HAL hardware abstraction layer, enabling portability between different STM32 devices via standardized API calls; The Low-Layer (LL) APIs, a light-weight, optimized, expert oriented set of APIs designed for both performance and runtime efficiency.