Answers Database

A1.4: How to Target the Spartan Device With Most Schematic and SynthesisTools When a Library is Not Yet Availible


Record #3441

Product Family:  Software

Product Line:  FPGA Implementation

Problem Title:
A1.4: How to Target the Spartan Device With Most Schematic and
SynthesisTools When a Library is Not Yet Availible



Problem Description:
Keywords: Spartan, target, A1.4, 1.4

Urgency: Standard

General Description:
This solution record describes how to target a Spartan family device using
A1.4 when a library is not yet availible for the particular schematic or
synthesis tool you are using.

The A1.4 software needs to first be installed to target a Spartan device.


Solution 1:


The Spartan libraries for the Xilinx supported interfaces will be released in
the Alliance 1.5 release due out mid-year 1998.  Until then, a Spartan device
can still be targeted using the A1.4 software if you use the xc4000e library for
 creating the design and re-targeting to a Spartan device from within the Design
 Manager or command-line with the -p switch.

When using the xc4000e library and targeting a Spartan device, the following
components can NOT be used in the design since they do not exist in the
Spartan architecture:

Asynchronous RAMs: RAM16X1, RAM32X1
Note: Also be sure NOT to create any asyncronous RAM modules
      using LogiBLOX

Wide Edge Decoders: DECODE4, DECODE8, DECODE16, DECODE32, DECODE64

WANDs: WOR2AND, WAND1, WAND4, WAND8, WAND16

Mode Pins: MD0, MD1, MD2

All other components should be OK to use with the Spartan architecture and
creation of the design should be otherwise the same as creating a xc4000e
design.



End of Record #3441