Getting started
Create a free account, open the dashboard, and start your first run. Cmulation provisions the simulator for you — there is nothing to install locally, and you begin with free Sim-Credits.
Documentation
Learn how to upload Verilog or SPICE, run in the cloud, read your waveforms, and make sense of the output with AI. This is a concise overview — deeper guides are on the way.
Uploading Verilog
Upload a single Verilog (.v) file, or a multi-file archive with a named top module. Cmulation compiles and simulates your design in the cloud, then returns logs, a pass/fail, and VCD waveforms.
Uploading SPICE
Submit a SPICE netlist file, or an archive with a named top cell. Your circuit runs on a managed simulator, and the results and logs are captured for inspection and AI interpretation.
Reading waveforms (VCD)
Verilog runs produce VCD waveform output alongside the logs. Open a completed run to view signal activity and confirm the design behaves as your testbench expects.
AI interpretation
Open a run to get a run-scoped, plain-language explanation of the output — what passed, how signals behaved, and likely causes when something failed. You can also paste a log on the Analyze Output page.
Projects & teams
Group related runs into projects, and invite classmates or colleagues into a shared, tenant-isolated workspace with owner, admin, and member roles.
Sim-Credits & billing
Each successful simulation uses one Sim-Credit. Start with free credits, and when you need more, owners and admins can buy credit packs from the dashboard.