Bus interface?

Question

Heyi was wondering if any one had any idea how to create some sorta businterface that would communicate between a FPGA (Spartan D2E) and aCLPD (DI02) board.. somethin like wait ready write sorta thing.. anyidea. coz i am having trouble trying to get the switches to work onthe cpld throug the fpga.any idea and recommendations would help greatly..Thnx inadvance!Tyron

Dave Vanden Bout · Accepted Answer

(Tyron) wrote in news:3e4a6899.0404151220.211d7156We just published a Compact Flash / IDE hard drive interface for the XSB-300E Board that uses a wait-ready type of interface since the FPGA is much faster than the PIO mode interface.  The documentation is here:and the design files are here:The pioIntfc module in the atacntl.vhd file may be similar to what you need since it generates the slow read and write pulses that are needed to talk to the disk / CF card.-- || Dr. Dave Van den Bout   XESS Corp.                 (919) 363-4695 ||||            PO Box 33091                              ||||      Raleigh NC 27636 USA   FAX:(919) 367-2946 ||

Jim Lewis · Answer

Tyron,For the DIO2/D2E board you have, there are reference manualsand schematics.  See the page:     There should be timing diagrams in the DIO2 manual.In fact, there should be VHDL code in the DIO2 manual.Cheers,JimThere are also examples in the board verification link.Tyr-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Jim LewisDirector of Training             mailto:SynthWorks Design Inc.           Expert VHDL Training for Hardware Design and Verification~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Bus interface?

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