Thanh NguyenEmail: thanh.nguyenngoc@phenikaa-uni.edu.vnOffice: Room 606 - Building A4Chapter 6: Embedded System Design Process... Content ▪ Design methodologies▪ Embedded system design p
Trang 1HỆ THỐNG NHÚNG
Dr Thanh Nguyen
Email: thanh.nguyenngoc@phenikaa-uni.edu.vn Office: Room 606 - Building A4
C hapter 6: Embedded System Design Process
Trang 2Content
▪ Design methodologies
▪ Embedded system design process
▪ Discuss the recent trends.
▪ Major application areas.
Trang 3Design Methodologies
Design Methodologies
▪ It is a procedure for designing a system.
▪ Keep a scorecard on a design to ensure that we have done everything
we need to do
▪ Develop computer-aided design tools
▪ Makes it much easier for members of a design team to communicate
Trang 4Design Methodologies
Embedded System Design Process
▪ Top-down design:
▪ start from most abstract description
▪ work to most detailed
▪ Bottom-up design:
▪ work from small components to big system
Requirements
Specification
Architecture
Component design System integration
Trang 5Design Methodologies
Major Goals of the Design
✓ Thực hiện đc Functions
✓ Manufacturing Cost
✓ Performance Speed
✓ Power Consumption
At each Step in the design,
▪ Analyze, Refine, & Verify
Requirements
Specification
Architecture
Component design System integration
Trang 6Design Methodologies
Design Process
Determine the
requirements
Design the system architecture Select the OS
Choose the Processor and peripherals
Choose the Development platform
Code the application And optimize
Verify the software
On the host system
Verify the software
On the target system
Trang 7Design Methodologies
Requirements
▪ Before we design a system, we must know
what product we are designing
▪ Plain language description of what the user
wants and expects to get
▪ May be developed in several ways:
✓ Discuss directly to customers
✓ Discuss to marketing representatives
✓ Provide prototypes to users for comment
Trang 8Design Methodologies
Requirements
▪ Functional requirements:
✓ output as a function of input
▪ Non-functional requirements:
✓ Performance - time required
✓ size, weight, etc
✓ power consumption
✓ reliability
✓ etc
Trang 9Design Methodologies
Specification
▪ It serves as the contract between the customer and the architects As such, the
specification must be carefully written so that it accurately reflects the
customer’s requirements and does so in a way that can be clearly followed during design
▪ The specification should be understandable enough so that someone can verify
that it meets system requirements and overall expectations of the customer
Trang 10Design Methodologies
Architecture design
▪ Architecture is the plan for the overall structure of the system that will be used
later to design the components that make up the architecture
▪ Architecture design must give an idea about
✓ What major components need for satisfying the specification?
✓ What hardware components need? like CPUs, peripherals, etc
✓ What Software components need?
✓ Must take into account functional and non-functional specifications
Trang 11Designing hardware and software
Architecture design
▪ The component design effort builds those components to satisfy architecture and specification
▪ The components will in general include both hardware - FPGAs, boards and
software modules
▪ Some components are ready-made, some can be modified from existing designs, others must be designed from scratch (that is new design)
Trang 12System Integration
▪ System integration is Putting together the components
✓ Many bugs appear only at this stage
▪ Bugs are typically found during system integration, and good planning can help us find the bugs quickly
▪ System integration is difficult because it usually uncovers problems It is often
hard to observe in the system, to determine exactly what is wrong - the
debugging facilities for embedded systems are usually much more limited than
what you
▪ Inserting appropriate debugging facilities during design can help ease system
Trang 13Recent Trends
▪ Due to the developments in Micro electronics availability of processors increased
✓ Reduces cost
✓ Increased speed
✓ Reduce Size
✓ Reduce Power
Trang 14Recent Trends
✓ Pressure Sensors
✓ Flow Sensors
✓ Ultrasonic Sensors
✓ RF Tx/Rx Modules
✓ Zigbee Modules
✓ EM Locks
✓ Vacuum sensors
✓ Digital Compass
✓ Temperature Sensor
✓ Speed sensors
✓ Level sensors
✓ Industrial proximity sensor
✓ Vibration sensor
✓ Water Identifier Sensors
✓ Acceleration Sensor - 3 Axis
✓ Glass braking sensor
Modules & industrial standard sensors
Trang 15Recent Trends
✓ Accelerometer
✓ Liquid / Moisture Sensor
✓ GSM / GPRS Modems
✓ Sound Detecting Sensor
✓ PIR Sensor
✓ Gas Sensor
✓ CO2 Analyzer
✓ GPS Receiver
✓ Voice IC
✓ Digital Pressure Sensor
✓ Digital Temperature Sensor
✓ Bump Sensor (Touch Sensor)
✓ DC Motor
✓ AC Motor
✓ Servo Motor
✓ Stepper Motor
✓ Beam Sensor
✓ Color Mark Sensor
✓ Metal Sensor
Modules & industrial standard sensors
Trang 16Application Areas
Consumer electronics
Trang 17Application Areas
Industrial Automation
Trang 18Application Areas
Biomedical Systems
Trang 19Application Areas
Telecommunication Systems
Trang 20Summary
▪ Design methodologies
▪ Embedded system design process
▪ Discuss the recent trends
▪ Major application areas