Altera_Forum
Honored Contributor
9 years agoNo SDO file produced for Timing Simulation
I'm following the guide to get started with a MAX10 board: ftp://ftp.altera.com/up/pub/altera_material/16.1/tutorials/vhdl/quartus_ii_introduction.pdf,
It's all very straightforward: I added some code, simulated using ModelSim-Altera, added a test vector and programmed the MAX10 development board which worked as expected. However, if I try and follow the 8.1.2 'Timing Simulation' section to verify the timing, I get the following error:Error (suppressible): (vsim-SDF-3196) Failed to find SDF file "test_max10_vhd.sdo".# vsim -novopt -c -t 1ps -sdfmax light_vhd_vec_tst/i1=test_max10_vhd.sdo -L fiftyfivenm -L altera -L altera_mf -L 220model -L sgate -L altera_lnsim work.light_vhd_vec_tst# Error loading design
Error loading design
No *.sdo file containing timing information is produced in the build directories (I expected it to be in the \simulation\modelsim directory). In the section, the tutorial states: --- Quote Start --- Note: timing simulations are only supported by Cyclone IV and Stratix IV FPGAs. If your DE-series board does not have a Cyclone IV or Stratix IV FPGA, the result of a timing simulation will be identical to the functional simulation --- Quote End --- Are timing simulations not supported with MAX10? I thought a brief description of the design process is: write code, map pins to entities, test code with test bench (simulation), verify timing, program device, use signal tap...etc if required to debug target....etc If the above is true, how is the timing verified on MAX10? The other confusion is that in the tutorial it states to leave EDA tool settings to defaults, which is actually none. I set the Simulation tool ModelSim-Altera for the simulation to work, but left the Synthesis blank. When the Design Entry/Synthesis blank what's performing synthesis?