Legend

• MCU –> Micro Controller Unit
• MPU –> Micro Processor Unit
• OE –> openembedded
• NVM –> Non Volatile Memory
• MMU–> Memory Management Unit
• PMIC –> Power Management Integrated Circuit

Details

OE#

OE (openembedded) is the build system that the Yocto project is based on. It is a bundle of Python scripts that define the logic we can use to then create our recipes.

MCU#

Una MCU (Micro Controller Unit), da non confondere con Marvel Cinematic Universe, o microcontrollore è a tutti gli effetti un computer su un singolo chip. Al suo interno integra CPU, RAM, NVM (memoria non volatile) e alcune periferiche comuni (timer, ADC, UART). Generalmente viene programmato andando a flashare un programma compilato all’interno della sua NVM.

A MCU (Micro Controller Unit), not to be confused with the Marvel Cinematic Universe, or microcontroller is effectively a computer on a single chip. It integrates a CPU, RAM, NVM (Non Volatile Memory), and some common peripherals (timers, ADC, UART). It is generally programmed by flashing a compiled program into its NVM.

MPU#

An MPU (Micro Processor Unit) or microprocessor is basically an MCU, but integrates many more peripherals, especially those necessary for the execution of an operating system. Among these are:

• MMU (Memory Management Unit), which manages the translation of virtual memory addresses to physical addresses and controls access to and from the RAM
• PMIC (Power Management Integrated Circuit), which regulates the complex power sequences of the CPU and various peripherals
• multiple buses
• multiple external memory controllers

Usually, an MPU is chosen for projects that require:

• Complex GUIs, video rendering, advanced touch
• Parallel execution of multiple processes (Web server, video, logging)
• Development using high-level languages (Python, Java) in an OS