Simulate your CAN-FD bus
before you build it.
Topology, stubs, connectors, PCB traces, filters and transceivers with IBIS models. See the reflections, check every bit at the sample point and estimate power. All in the browser, nothing to install.
The problem
With CAN-FD at 2, 5 or 8 Mbit/s, bits last 125–500 ns and edges a few tens of ns. The cable behaves as a transmission line: unterminated ends, stubs, connectors and pin capacitance create reflections that can make a node read the wrong bit. This tool shows you where and why, in minutes, before layout or the lab.
What it does
Real topology
Backbone, stubs, stubs from stubs, PCB boards, connectors and cables, with the length of every segment.
Bit check
Margin in volts at every sample point, for every receiver, with the transmitter you choose.
Waveforms and animation
Voltage at any point, and waves travelling and bouncing along the bus.
Transceivers and IBIS
A linear model, or import an IBIS file for non-linear simulation.
Filters and protection
Common-mode chokes, filters and TVS/ESD diodes as cells with a frequency response.
Power
Power drawn and dissipated by every node and every termination.
Private by design
The simulator is a page that runs entirely in your browser. Your topology, IBIS files and saved projects stay on your computer: nothing is uploaded. Built for people working on confidential designs.
Who it is for
For electronics engineers, a fast pre-layout and what-if tool before moving to SPICE or measurements, with parameters taken from datasheets. For the less experienced, a visual way to understand why the CAN rules exist (two terminations, short stubs, no stars).
Draw the topology, pick the bit rate and see whether every receiver samples correctly. It runs in your browser: your data never leaves your computer.
Open the simulator