1Bitsy

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 STM32F415RGT
Frequency 168MHz
Flash 1MB
RAM 128KB
Vendor 1BitSquared

Configuration

Please use 1bitsy_stm32f415rgt ID for board option in “platformio.ini” (Project Configuration File):

[env:1bitsy_stm32f415rgt]
platform = ststm32
board = 1bitsy_stm32f415rgt

You can override default 1Bitsy settings per build environment using board_*** option, where *** is a JSON object path from board manifest 1bitsy_stm32f415rgt.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:1bitsy_stm32f415rgt]
platform = ststm32
board = 1bitsy_stm32f415rgt

; change microcontroller
board_build.mcu = stm32f415rgt

; change MCU frequency
board_build.f_cpu = 168000000L

Uploading

1Bitsy supports the next uploading protocols:

  • jlink
  • stlink
  • blackmagic

Default protocol is blackmagic

You can change upload protocol using upload_protocol option:

[env:1bitsy_stm32f415rgt]
platform = ststm32
board = 1bitsy_stm32f415rgt

upload_protocol = blackmagic

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).

1Bitsy 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
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.
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.
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.