MPLAB^® Harmony v3

Core

The core module components provide the simple-to-use abstractions of 32-bit SAM and PIC device peripherals and shared resources on which the MPLAB Harmony 3 middleware is based, including drivers, services and the Operating System Abstraction Layer (OSAL).

Chip Support Package (CSP)

The CSP module contains independent, low-level Peripheral Libraries (PLIBs) that are simple functions to initialize and control peripherals and basic device features on which MPLAB Harmony 3 drivers and services are based. The CSP supports initialization of 32-bit devices and development of simple applications that directly control peripheral hardware with minimal external dependencies.

Board Support Package (BSP)

The BSP module provides initial configuration settings for PIC and SAM Xplained development boards.

MPLAB Harmony  Configurator (MHC)

The MHC repository contains the implementation of MPLAB Harmony Configurator (MHC), a Graphical User Interface (GUI) based configuration utility that accelerates the development of embedded applications using 32-bit SAM and PIC devices.

Bootloader

The bootloader module components provide a framework to develop bootloaders for SAM microcontrollers. The Bootloader Library can be used to upgrade firmware on a target device without requiring an external programmer or debugger.

The wolfSSL embedded SSL library (formerly CyaSSL) is a free-to-use, lightweight SSL/TLS library written in ANSI C and targeted at embedded, RTOS and resource-constrained environments. It supports TLS 1.3.

wolfMQTT is an implementation of the MQTT Client written in C for embedded use and that supports SSL/TLS via the wolfSSL library. This free-to-use library was built from the ground up to be multi-platform, space conscious and extensible. It integrates with wolfSSL to provide TLS support.

wolfSSL's Embeddable SSH Server is a free-to-use, lightweight Secure Shell library that provides server-side support for SSH v2.0 capabilities. It is dependent on wolfCrypt.

The Micrium OS-III repository contains µCOS-III port files and demonstrations implemented on 32-bit PIC and SAM microcontrollers.

FreeRTOS, an industry-leading, open-source, real-time operating system is enabled by default with Harmony v3 drivers, middleware and system services. It is accessed directly from the CMSIS FreeRTOS repository. This enables you to schedule tasks in your application quickly. If bare-metal development (without RTOS support) or use of another supported real time operating system is desired, simply select the desired option from the available RTOS configuration.