Data Sheet

Limitations
The following is a listing of known limitations in the current version of the Arduino™ AVR®:
x No significant functional limitations.
x HFINTOSC as CLC1 input is not supported for efficiency reasons.
x IVR Internal Voltage Regulator and VREGCON register effect are not modeled.
x BORCON register effect are not modeled.
Compilers
Supported Third Party Compilers
Proteus VSM models will fundamentally work with the exact same HEX file as you would program the
physical device with. However, far more debugging information is available when using a compiler to write the
firmware and providing these object files to Proteus in place of the HEX file provides a much richer working
environment.
We recommend you use the free Labcenter VSM Studio IDE. This will greatly simplify the task as it will
automatically configure supported compilers to work with a Proteus VSM simulation.
If you prefer to work inside your own IDE then you will need to set your compiler options manually. After
compiling for debug, all you need to do is specify the debug file from the compiler as the program property of
the microcontroller on the schematic.
VSM Studio supported toolchains
• Arduino
• GCC
Proteus Design Suite Page 14 Labcenter Electronics Ltd.