In addition, the environment provides back and forth interfaces with SBML (System Biology Markup Language), a very common description language used in systems biology. BB- SPICE environment is composed of three modules: a new textual and compact description formalism for biological systems, a converter that handles this description and generates the SPICE netlist of the equivalent electronic circuit and NGSPICE which is an open-source SPICE simulator.
The article deals with BB- SPICE ( SPICE for Biochemical and Biological Systems), an extension of the famous Simulation Program with Integrated Circuit Emphasis ( SPICE). Modeling and simulation of biological systems using SPICE language
The details of discussions are specific to SPICE, but the concepts will be helpful when performing installations into other circuit analysis packages.
The installation of three devices is documented and the installations of the first two provide a foundation for installation of the lossy line which is the third device. This thesis was written to clarify the procedure for installing a device into SPICE3E2. An understanding of the programming conventions used, simulation software, and simulation algorithms is required. Modifying SPICE3E2 or any other large software package is not a trivial task. In this work a traditionally lumped parameter simulator, SPICE, is modified so that it will perform lossy transmission line analysis using a different model approach. An approach to writing a multimode simulator is to take an existing software package which performs either lumped parameter analysis or field analysis and add the missing type of analysis routines to the package. The interconnects, however, have to be modeled as transmission lines which incorporate electromagnetic field analysis. Classical circuit analysis algorithms (lumped parameter) are needed for circuit devices and the network formed by the interconnected devices. Implementation of interconnect simulation tools in spiceĪccurate computer simulation of high speed digital computer circuits and communication circuits requires a multimode approach to simulate both the devices and the interconnects between devices.
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