STM32F103RB (20k 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 STM32F103RBT6
Frequency 72MHz
Flash 128KB
RAM 20KB
Vendor Generic

Configuration

Please use genericSTM32F103RB ID for board option in “platformio.ini” (Project Configuration File):

[env:genericSTM32F103RB]
platform = ststm32
board = genericSTM32F103RB

You can override default STM32F103RB (20k RAM. 128k Flash) settings per build environment using board_*** option, where *** is a JSON object path from board manifest genericSTM32F103RB.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:genericSTM32F103RB]
platform = ststm32
board = genericSTM32F103RB

; change microcontroller
board_build.mcu = stm32f103rbt6

; change MCU frequency
board_build.f_cpu = 72000000L

Uploading

STM32F103RB (20k RAM. 128k Flash) supports the next uploading protocols:

  • jlink
  • stlink
  • blackmagic
  • serial
  • dfu

Default protocol is stlink

You can change upload protocol using upload_protocol option:

[env:genericSTM32F103RB]
platform = ststm32
board = genericSTM32F103RB

upload_protocol = stlink

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).

STM32F103RB (20k 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.
libOpenCM3 The libOpenCM3 framework aims to create a free/libre/open-source firmware library for various ARM Cortex-M0(+)/M3/M4 microcontrollers, including ST STM32, Ti Tiva and Stellaris, NXP LPC 11xx, 13xx, 15xx, 17xx parts, Atmel SAM3, Energy Micro EFM32 and others.
mbed The mbed framework The mbed SDK has been designed to provide enough hardware abstraction to be intuitive and concise, yet powerful enough to build complex projects. It is built on the low-level ARM CMSIS APIs, allowing you to code down to the metal if needed. In addition to RTOS, USB and Networking libraries, a cookbook of hundreds of reusable peripheral and module libraries have been built on top of the SDK by the mbed Developer Community.
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.