ModelSim -> Error: xxxxx.vhd(n): Library yyyy not found

Hi Dave,

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I did too. Having to manually create waveforms in the the Max+PlusII simulator led me to start using Modelsim.

I guess you were just more patient than me

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I ran my first successful ModelSim simulation yesterday (on a lazy Sunday afternoon ...) and you are quite right (as usual) generating repetitive signals is quite easy and very neat.

I used the native link in QII and that runs fine. Today I decided to continue on the momentum and tried to simulate the other part of the project. So I went through exactly the same motions, copy-paste-edited some of the first testbench into the second. Started the (gate-level) simulation but got this error:

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# ** Error: (vsim-13) Recompile work.iddramread because work.iddramread_data_type has changed.

# ** Error: (vsim-13) Recompile work.iddramread(structure) because work.iddramread_data_type has changed.

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I use the std_logc_2D type (defined in lpm_pack.vhd) a lot and the testbench-writer adds a package at the top of the testbench to define local types for these ports to use while simulating.

Any clue(s)?

Regards,

Josy