Which you are pairing with the MCP2515 (Arduino, PIC, STM32)?
Alternatively, the standard path is: C:\ProgramData\Labcenter Electronics\Proteus 8 Professional\Data\LIBRARY (Note: ProgramData is often a hidden folder). Step 3: Copy Files Extract the downloaded ZIP file. Copy the .LIB and .IDX files provided in the package. mcp2515 proteus library
If you see 0xFF or random garbage, the SPI model is corrupt. Reinstall the library. Which you are pairing with the MCP2515 (Arduino, PIC, STM32)
Using an MCP2515 library in Proteus can accelerate CAN-node development by enabling schematic validation and firmware testing in a simulated environment. Success depends on the accuracy of the MCP2515 model and the fidelity of CAN/transceiver models. For complex or timing-critical applications, complement Proteus simulation with hardware prototyping and oscilloscope verification. mcp2515 proteus library