AR# 6453: Initializing Mentor Quicksim simulation: Net name for the global reset signal for CPLD's (9500)
AR# 6453
Initializing Mentor Quicksim simulation: Net name for the global reset signal for CPLD's (9500)
描述
Keywords: 9500, CPLD, reset, global set reset, initialize, Quicksim, functional, timing
Urgency: Standard
General Description:
I am simulating my CPLD design in Quicksim II and as per usual I am using //prld in my functional simulation and I get the expected results. But after implementing in the Xilinx tools I come back into Quicksim to do a timing simulation I try and toggle the //prld signal and I am getting errors that the signal can not be found. Am I using the wrong global signal?
解决方案
For functional simulation the simulation models use the signal named //prld (double slash) for the global set reset signal. Currently in the CPLD software some code was changed which ended up changing the name of the signal //prld to /prld on the backend. Becuase of this you must use the signal named /prld in the back-end timing simulation, and the signal named //prld in the functional simulation when using Xilinx M1.5 or later software. Devlopment is looking into this in order to preserve the global set reset signal name.