If your simulation (or real-world hardware) is missing messages or lagging, the issue is often the firmware library. Recent benchmarks show significant performance differences: Key Performance Finding Recommendation
: Users often forget to match the MCP2515's clock frequency in Proteus with their code's CAN.begin(params) settings, leading to "Init Failed" errors. mcp2515 proteus library better
: The MCP2515 has 3 transmit and 2 receive buffers. A superior library will efficiently manage these to prevent frame dropping during back-to-back bursts. Arduino MCP2515 CAN interface library - GitHub If your simulation (or real-world hardware) is missing
Proper libraries allow you to actually interface your Arduino/STM32 code via SPI with the MCP2515 model. Accurate CAN Frames: A superior library will efficiently manage these to
: In Proteus, go to System > System Settings > Library Folders and click the + button to add the folder where your library is stored.
: A popular alternative that natively supports standard features. By altering a timeout value in the mcp_dfs.h file, users have increased its sustainable bus capacity to 92% .
You can see the actual data packets moving if you pair it with a CAN-Bus Analyzer tool in Shield Compatibility: