^

AR# 33818 ISE Simulator (ISim) - ERROR: at x ns: Negative wait time (-2147483647 ps) in File "tb_test.vhd"

Keywords: simulator, stopped


I encounter the following errors when I run a simulation using ISim,

Finished circuit initialization process.
at 607800 ns: Error: read 100 us;ization phasefor ADS1282 to the factory defaults a unit is expected
at 607800 ns: Error: TEXTIO read: empty line is read
ERROR: at 607800 ns: Negative wait time (-2147483647 ps) on line 59 in file "tb_test.vhd"
ERROR: In process tb_test.vhd:42

The error appears to be associated with the following variable syntax:

wait for delay;

where 'delay' is defined by

variable delay : time;

How can I resolve this error?



This is a known issue in all updates of ISE Design Suite 11. This issue is currently under investigation in order to better address this condition in a future release of the ISE Simulator.

To work around this issue in ISE Design Suite 11, change the variable type from 'time' to 'integer'.




AR# 33818
Date Created 11/12/2009
Last Updated 11/12/2009
Status Active
Type
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