Is an XC3S1500 enough to implement a MP@ML MPEG-2 decoder?

Question

I'm looking for a development board to implement an MPEG-2 video decoder, and currently interested in ADS-XLX-SP3-DEV1500 available from Avnet, which comes with the following components: * Xilinx XC3S1500/2000-FG676 Spartan-3 FPGA * 2x16 character LCD * 128x64 OSRAM OLED graphical display * DB15 & video DAC * Audio CODEC * PS2 keyboard & mouse ports * 8-position DIP switch * 2 push-buttons * 8 discrete LEDs * Piezo buzzer * 3, 140-pin general purpose I/O expansion connectors (AvBus) * Up to 30 LVDS pairs * 1, 50-pin 0.1" header for easy I/O access * Micron DDR SDRAM (32 MB) * 16 MB FLASH * 2 MB SRAM * RS-232 serial port * 10/100 Ethernet * USB 2.0 * Xilinx platform FLASH configuration PROM(s) * Parallel IV cable support for JTAG * Fly-wire support for Parallel III and MultiLINX?

The peripherals seem more than enough, but I still wonder whether the logic resources in XC3S1500 is sufficient. Any suggestion is really appreciated.

Thanks, Kevin

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news.skynet.be · Accepted Answer

HikevI'd say yes. is a MPEG4 decoder in  10000 Slice IIRC so ...	Sylvain

Marc Randolph · Answer

decoder,which[... snip stuff like the Piezo buzzer and connectors ...][...]Howdy Kevin,That's quite a development board!  Seems like it would be perfect foryour project and you should have no problems fitting an mpeg decoder inthat device.  Compared to past FPGA's, XC3S1500 is quite a large device- in fact, Xilinx has an IP partner that has a mpg decoder core whichfits in a 3S1000:I see that their core runs at only 50 MHz.  With just a little bit ofattention, running at 100 MHz in the S3 should not be a problem.  Goingout on a limb just a bit (it's a pretty strong one), you could likelycode up two decoders in the space of their one, or one decoder thattakes up half the space of theirs.Have fun,   Marc

Thomas Gebauer · Answer

Hi,i wrote a few mpeg decoding blocks (VLD, inv.ZigZag, inv.Quant, IDCT).By now i am able to decode a macroblock of a mpeg-1 I-Frame.  This logicneeds about 18 % of a XC3S1000 and is not very optimized. The largest blockwhich is still missing is the motion compensation.So i think the Avnet board will be perfect for your needs.Thomas

Is an XC3S1500 enough to implement a MP@ML MPEG-2 decoder?

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