element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Transportation & Automotive
  • Technologies
  • More
Transportation & Automotive
Documents Automotive Navigation Systems
  • Blog
  • Forum
  • Documents
  • Quiz
  • Polls
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Transportation & Automotive to participate - click to join for free!
Actions
  • Share
  • More
  • Cancel
Engagement
  • Author Author: Sunnyzhuo
  • Date Created: 7 Nov 2009 10:31 AM Date Created
  • Last Updated Last Updated: 7 Oct 2021 1:12 AM
  • Views 360 views
  • Likes 0 likes
  • Comments 0 comments
Related
Recommended

Automotive Navigation Systems

Automotive Navigation Systems

 

Source: http://www.altera.com

 

A navigation system is one of the key applications within the automotive space that utilizes a fair amount of graphics processing. The graphics processing complexity varies from a simple turn-by-turn (TBT) navigation to a more sophisticated 3D navigation system.  Figure 1 shows a typical block diagram of a navigation system. The architecture consists of a host CPU (which is generally a Hitachi SH4, Motorola Power PC, or a TI OMAP processor) with a graphics processor. Various peripherals talk to these processors, including keyboards and thin-film transistor (TFT) displays.

 

Figure 1.  Typical Automotive Navigation System

 

image

 

Graphics processing requires the computation of numerous algorithms such as scaling, filtering, and alpha blending. Unlike digital signal processors or ASSPs, FPGAs are better suited to perform these computationally-intensive algorithms because they can handle multiple instructions in a single clock cycle.

 

Figure 2 shows a low-cost graphics implementation. The video-in can be a BT.656 input (YUV 4:2:2), with color space converter (CSC) to output RGB. The memory interface to the AvalonRegistered system interconnect fabric accommodates high graphic computations. Memory types that are supported include: SDR, DDR, and DDRII. The Altera NiosRegistered II 32-bit embedded processor is primarily used for graphics processing (line draw, frame creation) and provides additional control functions. Graphics hardware acceleration can include functions such as BitBlt (copy object into frame buffer, 2D-DMA transfer, possibly with blending). Alpha blending can have multiple channels. The CycloneRegistered FPGA series is capable of supporting LVDS graphics output for remote display applications.

 

Figure 2. Low-Cost Graphics Implementation of Automotive Navigation System

 

image


View full image in new window

 

Notes:

 

DMA = direct memory access
FIFO = first-in first-out


With efficient device architecture for graphics processing, the Cyclone FPGA series meets the performance and price-level requirements of cost-sensitive routing applications. Complementing this powerful combination is Altera's Nios II embedded processor.

  • Share
  • History
  • More
  • Cancel
  • Sign in to reply
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube