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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

simulation error...

Error: Simulation results from J:/projects/uart_frq/db/uart_frq.sim.cvwf (0 ps to 20.0 ms) do not match expected results from vector source file J:/projects/uart_frq/uart_frq.vwf

Error: Logic level(s) do not match expected level(s)

Error: Logic level 0 does not match expected logic level X for node "cnt" at time 0 ps

Error: Logic level 0 does not match expected logic level X for node "frqout" at time 0 ps

Error: Quartus II Simulator was unsuccessful. 4 errors, 0 warnings

Error: Peak virtual memory: 123 megabytes

Error: Processing ended: Sun Sep 27 14:50:43 2009

Error: Elapsed time: 00:02:23

Error: Total CPU time (on all processors): 00:02:21

can someone tell me what is wrong???

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    You specified in the waveform file that you expected the "cnt" and "frqout" to be 'X' at the beginning of the simulation, which is not the case. You should change those to the real expected signals, or change them to "don't care"