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AR# 20971

7.1 MAP - Internal Error: "Pack:pksbatsdesign. c:1618:1.31.6.1 - No Xdm objects for PERIOD= 15000.000000 pS HIGH 50.000000%

Description

General Description:

When a UCF file contains the following constraint:

net sys_clk_pin PERIOD = 15000 ps;

MAP reports the following error:

"INTERNAL_ERROR: Pack:pksbatsdesign.c:1618:1.31.6.1 - No Xdm objects for PERIOD= 15000.000000 pS HIGH 50.000000%"

Solution

You can avoid this error by changing the constraint form in the UCF file from:

net sys_clk_pin PERIOD = 15000 ps;

to:

Net sys_clk_pin TNM_NET = sys_clk_pin;

TIMESPEC TS_sys_clk_pin = PERIOD sys_clk_pin 15000 ps;

AR# 20971
Date Created 09/04/2007
Last Updated 12/15/2012
Status Active
Type General Article