CSIM

This is a SPICE-like analog circuit simulator, for DC/AC Sweep and Transient (time-domain) analysis.

It mainly supports the following device models:

• BSIM3v3.2 (MOSFET Model)
• CCCS (Current Controlled Current Source)
• CCVS (Current Controlled Voltage Source)
• VCCS (Voltage Controlled Current Source)
• VCVS (Voltage Controlled Voltage Source)
• DC and AC voltage and current sources
• Resistor
• Capacitor
• Inductor
• PN Junction
• and more (by the dynamic link library loader)

And the following sweep methods:

• Linear
• Decade
• Octave
• Logarithm

What I have done:

• MNA (Modified Nodal Analysis) with Newton-Raphson iteration
• GEAR numerical integration
• LU decomposition
• HSPICE-like model parser
• Some unit tests

TODO:

• CLI/GUI Frontend
• Improve the sparse matrix algorithm
• Parallel computing acceleration (with GPU)
• Mixed digital domain (with Verilator, IcarusVerilog, etc.)

Guides

Build:

• mkdir build && cd build
• cmake .. -Denable_testcases=ON -DCMAKE_BUILD_TYPE=Debug (or Release)
• make -j8

Build documents:

• Doxygen needs to be installed. If not, rerun cmake after the installation
• make docs

Run regression tests:

• ./tstall