libmcu

Overview

A toolkit for firmware development.

Simplicity and code size are considered first while trying to avoid dynamic allocation as much as possible. No linker script tweak required.

The documentation of each modules are under the subdirectories. Some usage examples can also be found under examples and test cases.

Any feedback would be appreciated.

Modules

• Actor
• Application Timer
• Button
• Buzzer
• Cleanup
• Command Line Interface
• Common
• DFU
• FSM
• Logging
• Metrics
• Power Management
• PubSub
• RateLim
• Retry with exponential backoff
• Runner

Interfaces

• ADC
• BLE
• Flash
• GPIO
• I2C
• KVStore
• PWM
• SPI
• Application Timer
• UART
• WDT
• WiFi

Integration Guide

The library can be intergrated in your project as a git submodule, using CMake FetchContent, or downloading manually.

git submodule

Include libmcu into your project

$ cd ${YOUR_PROJECT_DIR}
$ git submodule add https://github.com/libmcu/libmcu.git ${THIRD_PARTY_DIR}/libmcu

Add libmcu into your build system

Make

LIBMCU_ROOT ?= <THIRD_PARTY_DIR>/libmcu
# The commented lines below are optional. All modules and interfaces included
# by default if not specified.
#LIBMCU_MODULES := actor metrics
include $(LIBMCU_ROOT)/projects/modules.mk

<SRC_FILES> += $(LIBMCU_MODULES_SRCS)
<INC_PATHS> += $(LIBMCU_MODULES_INCS)

#LIBMCU_INTERFACES := gpio pwm
include $(LIBMCU_ROOT)/projects/interfaces.mk

<SRC_FILES> += $(LIBMCU_INTERFACES_SRCS)
<INC_PATHS> += $(LIBMCU_INTERFACES_INCS)

CMake

add_subdirectory(<THIRD_PARTY_DIR>/libmcu)

or

set(LIBMCU_ROOT <THIRD_PARTY_DIR>/libmcu)
#list(APPEND LIBMCU_MODULES metrics pubsub)
include(${LIBMCU_ROOT}/projects/modules.cmake)

#list(APPEND LIBMCU_INTERFACES i2c uart)
include(${LIBMCU_ROOT}/projects/interfaces.cmake)

# Add ${LIBMCU_MODULES_SRCS} to your target sources
# Add ${LIBMCU_MODULES_INCS} to your target includes

CMake FetchContent

include(FetchContent)
FetchContent_Declare(libmcu
		     GIT_REPOSITORY https://github.com/libmcu/libmcu.git
		     GIT_TAG main
)
FetchContent_MakeAvailable(libmcu)