Hey i was wondering if any one had any idea how to create some sorta bus interface that would communicate between a FPGA (Spartan D2E) and a CLPD (DI02) board.. somethin like wait ready write sorta thing.. any idea. coz i am having trouble trying to get the switches to work on the cpld throug the fpga. any idea and recommendations would help greatly.. Thnx inadvance! Tyron
snipped-for-privacy@yahoo.com (Tyron) wrote in news:3e4a6899.0404151220.211d7156 @posting.google.com:
We 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 || || devb@xess.com PO Box 33091 || || http://www.xess.com Raleigh NC 27636 USA FAX:(919) 367-2946 ||
Tyron, For the DIO2/D2E board you have, there are reference manuals and 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, Jim
There are also examples > Hey
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Jim Lewis Director of Training mailto:Jim@SynthWorks.com SynthWorks Design Inc. http://www.SynthWorks.com 1-503-590-4787 Expert VHDL Training for Hardware Design and Verification ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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