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AR# 3288

Foundation XABEL/ABL2EDIF: Logical Error 18823: Enable 'signal.OE' is only allowed when top_level specified.

Description


Keywords: ABEL, tri-state, XABEL, ABL2EDIF, Foundation M1

Urgency: Standard

General Description:

While synthesizing ABEL code with Foundation M1 Series
software, the following error may be encountered.

Logical Error 18823: Enable 'signal.OE' is only allowed when
top_level specified.

ABEL only allows tri-state buffer inference if the ABEL file being synthesized is a
top-level ABEL file.

解决方案


Code the tri-state buffers out of the ABEL, and enter them in
another manner (VHDL, schematic, etc.).
AR# 3288
创建日期 01/13/1998
Last Updated 01/16/2003
状态 Archive
Type 综合文章