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AR# 868

XACT - Differences between DS550 (EPLD) software versions 5.x and 6.0

Description

Keywords: XACT, EPLD, 5, 6.0

Urgency : Standard

General Description:

Confusion sometimes arises as to how the EPLD Core Software has changed with
the recent release of XACTStep 5.2/6.0. This solution record will outline
some of the more significant differences.

解决方案

Version 5.2 is basically the same as version 5.1, with bug fixes.
Version 6.0 contains a new fitter and optimizer, and several functional
enhancements.

PLATFORM SUPPORT
================
Version 5.2 supports ONLY workstations
HP (HP-UX)
SUN (Sun-OS)
RS6000

Version 6.0 supports ONLY PCs (Windows)

** There is NO DOS FLOW for XEPLD v5.2/6.0 **

PAL INTEGRATION
==============
Version 5.2 uses PALCONVT and JED2PLD utilities

For the PC, use XABEL-CPLD (DS571) for PAL Integration. This method allows
the use of hierarchy, JEDEC conversion for over 100 PALs, and functional
simulation. All of these functions were not available with versions 5.x.

FITTED DESIGN DATABASE FILE
=======================
Version 5.2 - <design>.vmh or <design>.vmd for xc7272

Version 6.0 - <design>.vm6

TIMING CONSTRAINTS
=================
Version 5.2 does not allow for use of timing constraints.

Version 6.0 uses XACT-Performance Timespecs, placed either on schematic,
or in .cst file.

TIMING ANALYSIS
=============
Version 5.2 uses 5.1-style timerpt utility

Version 6.0 uses Timing Analyzer v6.0.

* Designs compiled with v5.2 software should not be analyzed with the Timing
Analyzer v6.0, and vice-versa.

PIN LOCKING
==========
Version 5.2 uses the .vmf file

Version 6.0 uses the .gyd file or .vmf file. .Gyd file contains design
optimization information as well, which will improve pin-locking
capability.



AR# 868
创建日期 03/04/1996
Last Updated 03/26/2000
状态 Archive
Type 综合文章