原标题：Avnet Xilinx Spartan-3A DSP DaVinci数字视频开发方案

　　Avnet公司的DaVinci数字视频开发平台采用Xilinx公司的3SD1800A-FG676 FPGA和TI公司的TMS320DM6437 “DaVinci” DSP,不仅能评估Spartan-3A DSP和DaVinci DSP的主要特性,而且能实现各种应用如飞机娱乐系统, 人机视频系统, 机器人,可视电话以及汽车视频系统, 可视对讲和智能识别.本文介绍了Xilinx公司的3SD1800A-FG676 FPGA主要特性和TI 公司的TMS320DM6437 “DaVinci” DSP主要特性,以及开发平台的方框图,电路图。

　　The Spartan-3A DSP DaVinci Development Kit provides a platform for engineers designing with the Xilinx Spartan-3A DSP FPGA and Texas Instruments TMS320DM6437 Digital Signal Processor (DaVinci DSP). The board provides the necessary hardware to not only evaluate the advanced features of the Spartan-3A DSP and DaVinci DSP devices but also to implement complete user applications using peripherals on the Spartan-3A DSP DaVinci Development Kit and/or EXP modules connected to EXP expansion connectors on the Spartan-3A DSP DaVinci Development Kit.

　　Xilinx 3SD1800A-FG676 FPGA主要特性:

　　• Clocks

　　⎯ 125 MHz LVTTL SMT Oscillator

　　⎯ LVTTL Oscillator Socket

　　⎯ Programmable LVDS clock

　　• Memory

　　⎯ 128 M x 32-bit DDR2 SDRAM

　　⎯ 32 Mx8 Parallel / BPI Configuration Flash

　　⎯ 64 Mb SPI Configuration / Storage Flash (with 4 extra SPI selects)

　　• Interfaces

　　⎯ 10/100/1000 PHY

　　⎯ JTAG Programming/Configuration Port

　　⎯ RS232 Port

　　• Buttons and switches

　　⎯ 4 User LEDs

　　⎯ 8-position User DIP Switch

　　⎯ 4 User Push Button Switches

　　⎯ Reset Push Button Switch

　　• User I/O and expansion

　　⎯ EXP Expansion Connector (2)

　　• Configuration and Debug

　　⎯ JTAG

　　⎯ Eridon debug connector (SATA)

　　TI TMS320DM6437 “DaVinci” DSP主要特性:

　　• Clocks

　　⎯ 27 MHz SMT Oscillator

　　• Memory

　　⎯ 128 M x 32-bit DDR2 SDRAM

　　⎯ 32 Mx8 Parallel / BPI Configuration Flash

　　⎯ 64 Mb SPI Configuration / Storage Flash (with 4 extra SPI selects)

　　• Interfaces

　　⎯ 10/100 PHY

　　⎯ Stereo Audio Codec

　　⎯ JTAG Programming/Configuration Port

　　⎯ RS232 Port

　　⎯ Video DAC for component and composite video

　　• Buttons and switches

　　⎯ 4 User LEDs

　　图1.Spartan-3A DSP DaVinci开发板外形图

　　图2.Spartan-3A DSP DaVinci开发板方框图

　　图3.Spartan-3A DSP DaVinci开发板电路图(1)

　　Xilinx® Spartan®-3A DSP FPGA DaVinci™开发板材料清单: