The model file dictates the behavioral simulation of the chip. Locate the models folder in your Proteus directory:
Upload the following code to your virtual Arduino Uno inside Proteus to verify that the A4988 library simulates correctly.
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Simulate step and direction control before building hardware. Microstepping Validation: Test step modes.
Copy the A4988_DR.LIB file and paste it into the LIBRARY folder within the path above. The model file dictates the behavioral simulation of
For Proteus 8 Professional: C:\ProgramData\Labcenter Electronics\Proteus 8 Professional\Data\LIBRARY
Extract the contents of the ZIP file to your desktop. Next, open the library storage directory of your Proteus installation. The file path depends on your version: This link or copies made by others cannot be deleted
: You can find reliable versions on GitHub (A4988-proteus-library), which often includes both the .LIB and .MOD files required for full simulation.