CMPE 246 Computer Engineering Design Studio

Embedded System

• Computer system that has set functions

  • Functions are usually constant

• Contains microcontroller

Big Bang Model

No planning or process before development of a system

Spiral Model

Loops through a development cycle of 4 phases:

• Planning

• Risk analysis

• Engineering

• Evaluation

Waterfall Model

Linear process where the next step cannot start until its previous step is finished.

Code-and-Fix Model

Requirements are defined but no planned processes before development

The V-Model

Framework in which development stages are directly tied in with testing stages

ARM processor

Processor of a smaller size in which power efficiency is prioritized

ROM

• “Read only memory”

• Stores code (AKA instructions) permanently

RAM

• “Random Access Memory”

• Stores temporary information

PROM

• “Programmable ROM”

EPROM

• “Erasable and programmable ROM”

Microprocessor

Advantages of Embedded System

• Cheap

• Portable

• Small

• Low power consumption

• High performance and accuracy

API

• “Application Programming Interface"“

• Takes instructions from user (picks from API documentation), transfers info to the application of API (info is translated for the software of interest

Drivers

• Piece of a software that allows communication between the and hardware

SRAM

DRAM

Masked ROM

Hybrid Memory

EEPROM

Flash Memory

NVRAM