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Video Streaming via Network using SOPC Characterization Presentation. Presented By: Tal Rath and Eyal Enav. Supervisor: Mike Sumszyk. Agenda. Project Goals. Project System Overview. System Architecture. Data Flow. System Inputs. System Outputs. Rates.

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video streaming via network using sopc characterization presentation

Video Streaming via Network using SOPCCharacterization Presentation

Presented By:

Tal Rath and Eyal Enav

Supervisor:

Mike Sumszyk

agenda
Agenda
  • Project Goals.
  • Project System Overview.
  • System Architecture.
  • Data Flow.
  • System Inputs.
  • System Outputs.
  • Rates.
  • Real Time Performance.
  • Conclusions.
  • Schedule.
project goals
Project goals
  • Real-time streaming of webcam video through LAN using SOPC.
    • Learning SOPC environment.
    • Designing a system for real-time demands.
    • Establishing a USB and Ethernet connections.
    • Investigation and implementation of suitable internet protocols.
project system overview
Project System Overview
  • DE2 Altera board
    • Ethernet 10/100M port.
    • USB device port 2.0.
  • Cyclone II FPGA
  • Nios II soft-core.
  • Avalon switch fabric.
  • Environment: SOPC builder, Quartus II and NIOS IDE II.
system architecture
System Architecture.

USB Port

USB

Cable

USB

Cable

Philips ISP1362

(USB)

DE2 Board

Local PC

Nios II Soft Processor

Cyclone II

Avalon Switch Fabric

On Chip Memory

LAN

Ethernet Port 10/100M

DM9000A

(Ethernet Controller)

RJ-45

RJ-45

Remote PC

data flow
Data Flow

Frames

DE2

LocalPC

Nios II

Camera

USB - device

USB - host

USB - host

Wait for Client request

USB Service Program

USB - device

Remote

IP & MAC

Remote PC

Screen

LAN

Get data From USB

Screen

Ethernet

UDP Receive & Video Display

Program

Frames

Send over Ethernet

Create UDP Packets

Ethernet Port

Ether. Packets

system inputs
System Inputs
  • DE2 board
    • Connected to PC through USB port,

using Philips USB controller.

  • USB webcam
    • Connected to PC through USB port.
  • USB connection service program
    • Should be written for Windows OS. (C++)
    • Reads frames from camera.
    • Sends frames to USB port using OS services.
system outputs
System Outputs
  • DE2 is connected to LAN.
    • DM9000A PHY/MAC Controller supplies an Ethernet interface for NIOS II.
    • UPD/IP over Ethernet should be Implemented using IDE2.
    • Possible implementation of ARP and DHCP.
  • Remote computer is connected to LAN.
  • UDP service program.
    • Should be written for Windows OS. (C++)
    • Accepts UDP frame packets from the SOPC.
    • Uses buffering.
    • Displays video stream.

LAN

rates
Rates
  • NIOS II loaded to Cyclone II can process up to 400M instructions Per second
real time performance
Real Time Performance
  • Two memory buffers will be allocated on chip memory.
    • Each one with a size of constant number of UDP packets.
  • Operation sequence (Assuming buffer B is ready):

CPU

Start DMA transfer:

USB  buffer A

Same with B and A replaced

DMA transfer

DMA transfer A ended Interrupt

Send Buffer B to network using UDP packets

Buffer_A_Ready_Flag = TRUE

Wait for Buffer_A_Ready_Flag

conclusions
Conclusions
  • USB protocol will be implemented over Philips ISP1362 USB controller.
  • UDP sender will be implemented over DM9000A mechanism.
  • A USB connection service program should be written and run on local computer.
  • A UDP service program will be written and run on remote computer.
  • DMA will be used in order to achieve parallelism.
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