BlackPill F103C8

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	STM32F103C8T6
Frequency	72MHz
Flash	64KB
RAM	20KB
Vendor	Generic

Configuration

Please use blackpill_f103c8 ID for board option in “platformio.ini” (Project Configuration File):

[env:blackpill_f103c8]
platform = ststm32
board = blackpill_f103c8

You can override default BlackPill F103C8 settings per build environment using board_*** option, where *** is a JSON object path from board manifest blackpill_f103c8.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:blackpill_f103c8]
platform = ststm32
board = blackpill_f103c8

; change microcontroller
board_build.mcu = stm32f103c8t6

; change MCU frequency
board_build.f_cpu = 72000000L

Uploading

BlackPill F103C8 supports the following uploading protocols:

• blackmagic

• cmsis-dap

• jlink

• serial

• stlink

Default protocol is stlink

You can change upload protocol using upload_protocol option:

[env:blackpill_f103c8]
platform = ststm32
board = blackpill_f103c8

upload_protocol = stlink

Debugging

Debugging - “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).

BlackPill F103C8 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
CMSIS-DAP
J-LINK
ST-LINK		Yes

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	Vendor-independent hardware abstraction layer for the Cortex-M processor series
Open-source ARM Cortex-M microcontroller library	The libopencm3 project aims to create an open-source firmware library for various ARM Cortex-M microcontrollers.
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
Zephyr	Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures