Xilinx Spartan-3A DSP FPGA视频开发方案

Xilinx 公司的Extended Spartan®-3A 系列FPGA的系统门从50K到340万,提供跟种密度和封装形式,集成了DSP MAC,具有最低的系统总成本同时又增加了功能,非常适合各中批量大的应用.而Xilinx的Spartan-3A DSP FPGA视频入门套件非常适合于评估Xilinx FPGA在各种视频和图像的应用.该入门套件包括Spartan-3A DSP 3400A 开发平台,FMC-视频子板和带三角架的Micron VGA CMOS 照相机模块.如门套件非常适合医疗,汽车电子,消费类电子,机器视频以及广播等领域的数字视频,图像处理,数码相机,数字视频记录仪和多媒体系统应用.本文介绍了Spartan®-3A 系列FPGA的主要特性以及Spartan-3A DSP FPGA视频入门套件的主要特性, XtremeDSP视频入门板物理连接框图,Spartan-3A DSP 3400A 开发平台方框图, FMC-视频方框图和VGA 照相模块方框图.

The Extended Spartan®-3A family of Field-Programmable Gate Arrays (FPGAs) solves the design challenges in many highvolume, cost-sensitive electronic applications. With 12 devices ranging from 50,000 to 3.4 million system gates , the Extended Spartan-3A family provides a broad range of densities and package options, integrated DSP MACs, and the lowest total system cost while increasing functionality. It also includes the non-volatile Spartan-3AN devices, which combine leading-edge FPGA and Flash technologies to provide a new evolution in security, protection and functionality, ideal for space-critical or secure applications.

The Extended Spartan-3A family improves system performance and reduces the cost of configuration. These enhancements, combined with proven 90 nm process technology, deliver more functionality and bandwidth per dollar than ever before, setting the new standard in the programmable logic industry. Because of its exceptionally low cost, the Extended Spartan-3A family is ideally suited to a wide range of consumer electronics applications, including broadband access, home networking, display/projection, and digital television equipment.
The Extended Spartan-3A family is a superior alternative to mask-programmed ASICs. FPGAs avoid the high initial cost, lengthy development cycles, the inherent inflexibility of conventional ASICs, and permit field design upgrades.

Extended Spartan-3A FPGA的主要特性:
The features of the Extended Spartan-3A family of FPGAs ;
Very low-cost, high-performance logic solution for highvolume, cost-conscious applications
Use fewer standard components
Increase system reliability
Flexible power management
Low 1.2V core voltage
Selectable I/O voltage with 3.3V, 2.5V, 1.8V, 1.5V, and 1.2V signaling
Full 3.3V ±10% compatibility and hot swap compliance
Dual-range auxiliary voltage allows 3.3V setting to simplify 3.3V-only design
Suspend and hibernate modes reduce system power
Leading connectivity platform
Multi-standard SelectIO interface pins support most popular and emerging signaling standards
Up to 519 I/O pins or 227 differential signal pairs
LVCMOS, LVTTL, HSTL, SSTL single-ended I/O
Selectable output drive, up to 24 mA per pin
QUIETIO standard reduces I/O switching noise
640+ Mb/s data transfer rate per differential I/O
LVDS, RSDS, mini-LVDS, HSTL/SSTL differential I/O with integrated differential termination resistors
Enhanced Double Data Rate (DDR) support
Compliant to 32-/64-bit, 33/66 MHz PCI™ technology
Abundant, flexible logic resources
Densities up to 53,712 logic cells, including optional shift register or distributed RAM support
Efficient wide multiplexers and wide logic improve performance and density
Fast look-ahead carry logic
IEEE 1149.1/1532 JTAG programming/debug port
Dedicated resources for high-speed digital signal processing applications
18-bit by 18-bit multiplier with optional pipeline
250 MHz XtremeDSP™ DSP48A block in the largest two devices
48-bit accumulator for multiply-accumulate (MAC) operation
Integrated 18-bit pre-adder for multiply or multiply-add operation
Optional cascaded Multiply or MAC
Fills the DSP performance gap between DSP processors and high-end custom solutions
Precise clock management with up to eight Digital Clock Managers (DCMs)
Clock skew elimination (delay locked loop)
Frequency synthesis, multiplication, division
High-resolution phase shifting
Wide frequency range (5 MHz to over 320 MHz)
Integrated Flash memory in Spartan-3AN platform
Up to 16 Mb of internal Flash for configuration and application storage
Up to 11 Mb of user storage available for embedded processing, code shadowing, or
scratchpad memory
Enables single-chip board designs for spaceconscious applications
Enhanced design security with hidden bitstream and Flash memory protection and security register
Eight low-skew global clock networks, eight additional clocks per half device, plus abundant low-skew routing
Hierarchical SelectRAM memory architecture
Up to 2.2 Mb of fast block RAM with byte write enables for processor applications
Up to 373 Kb of efficient distributed RAM
External DDR/DDR2 SDRAM support up to 400 Mb/s
Configuration interface to industry-standard PROMs
Low-cost, space-saving SPI serial Flash PROM
x8 or x8/x16 parallel NOR Flash PROM
Low-cost Xilinx Platform Flash with JTAG
Load multiple bitstreams under FPGA control with MultiBoot capability
Complete Xilinx ISE and free WebPACK development system software support
Industry’s most comprehensive IP library
MicroBlaze and PicoBlaze embedded processors
Integrate soft processor into FPGA to reduce Bill of Materials
Reduce obsolescence risks with soft processors
Low-cost QFP and BGA packaging, Pb-free options
Common footprints support easy density migration
Low-cost starter kits from Xilinx, distributors, and third parties
Complete starter kits designed for cost-sensitive, high-volume applications with design examples
XA versions available for Automotive applications
表1. Spartan-3A 系列产品



The XtremeDSP™ Video Starter Kit – Spartan®-3A DSP Edition is the ideal development platform to evaluate Xilinx FPGA(s) in a wide range of Video and Imaging applications. The Video Starter Kit provides an embedded design framework that can be customized with user defined video accelerators implemented on the FPGA fabric.  This unique combination of flexibility and processing power allows Xilinx FPGAs to address the most demanding security, industrial, medical, broadcast and automotive video applications.
The Video Starter Kit eases FPGA adoption for new users by providing familiar hardware and software development environments. Video application software can be developed using an eclipse based software development environment provided as part of the Xilinx Embedded Development Kit.  Hardware video accelerators can be developed and integrated into the embedded system without prior RTL using System Generator for DSP and Simulink from The Mathworks. Tight integration between these environments insures rapid development of real-time video applications.
XtremeDSP™ 视频入门板包括:
FMC-Video daughter card
Micron VGA CMOS Camera Module w/Tripod
Xilinx Design Suite 10.3 DVD
Xilinx EDK  – 1 year entitlement
System Generator for DSP – 1 year entitlement
Xilinx ISE® Foundation – 60 day evaluation
Xilinx Platform Cable USB
Video Starter Kit Documentation and Reference Design CD-ROM
128 MB Compact Flash card with boot image loaded
Universal power supply
Miscellaneous cables:
S-Video, RCA composite
CAT 5 Ethernet crossover
CAT 6 Ethernet patch
VGA
DVI
Null modem
Analog VGA to DVI Adaptor
主要特性:
Xilinx Devices
XC3SD3400A-4FGG676C
Carrier Board
Spartan-3A DSP 3400A Development Platform
FMC-Video Daughter Card: (FMC-Video)
DVI Input
Single Channel In and Out Composite
S-Video In and Out
Two Independent Camera Interfaces
CMOS Image Sensor Camera
742 x 480 x 60 Hz RGB progressive Scan
Micron MT9V022 CMOS color image sensor
目标应用:
市场: Medical, Automotive, Consumer, Surveillance, Machine Vision, Broadcast
应用: DSP, Digital Video, High Speed Design, Image Processing, Digital Camera, Digital Video Recorder, Multimedia Systems



图1.XtremeDSP视频入门板物理连接框图



图2.Spartan-3A DSP FPGA 3400A 开发平台,FMC-视频和照相模块外形图



图3.Spartan-3A DSP 3400A 开发平台方框图



图4.FMC-视频方框图



图5.VGA 照相模块方框图