Intel® Quartus® Prime Standard Edition User Guide: Third-party Simulation

ID 683080
Date 9/24/2018

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

2.2.6. Viewing Simulation Messages

ModelSim and QuestaSim error and warning messages are tagged with a vsim or vcom code. To determine the cause and resolution for a vsim or vcom error or warning, use the verror command.

For example, ModelSim may return the following error:

# ** Error: C:/altera_trn/DUALPORT_TRY/simulation/modelsim/DUALPORT_TRY.vho(31):
 (vcom-1136) Unknown identifier "stratixiv"

In this case, type the following command:

verror 1136

The following description appears:

# vcom Message # 1136:
# The specified name was referenced but was not found. This indicates
# that either the name specified does not exist or is not visible at 
# this point in the code.

If your design includes deep levels of hierarchy, and the Maintain hierarchy EDA tools option is turned on, this may result in a large number of module instances in post-fit or post-map netlist. This condition can exceed the ModelSim-Intel FPGA Edition instance limitation.

To avoid exceeding any ModelSim-Intel FPGA Edition instance limit, turn off Maintain hierarchy to reduce the number of modules instances to 1 in the post-fit or post-map netlist. To acces this option, click Assignments > Settings > EDA Tool Settings > More Settings.