Answers Database
Mentor: Possible solution to RAM not simulating correctly in Quicksim II
Record #5197
Product Family: Software
Product Line: Mentor
Product Part: quicksim II
Problem Title:
Mentor: Possible solution to RAM not simulating correctly in Quicksim II
Problem Description:
Urgency: Standard
General Description:
Doing a Functional or Timing simulation of a RAM using Mentor Quicksim II,
the RAM comes up in a known state, but none of my write operations
appear to be written into the RAM module. Doing a Read on the RAM
shows the contents to be the same as what it powered up as.
Solution 1:
Possible solutions:
1) Toggle the //globalsetreset signal at the beginning of the simulation.
2) If it is a timing simulation and the RAM is not coming up in the user
defined initial state (INIT property on RAM), make sure that pld_dve is
run after running pld_edif2tim. Doing this will add the INIT property as
an INSTANCE property for the RAM initialization in the design viewpoint.
End of Record #5197 - Last Modified: 12/11/98 09:08 |
