A process for automatic generation of functional digital simulation of an electronic system starting from a wiring specification base, whereby the system includes equipment, at least one connecting wire interconnecting the equipment, optionally inputs/outputs to other systems, includes: creating a wire table TC by selecting and extracting data from the wiring specification base, the wire table TC including the reference of equipment it is connected to and the equipment category at least for each wire of the electronic system to be simulated and for each end of the wire; creating a simulation table TS by transformating each line of the wire table TC by using rules specific to each pair of pieces of equipment connected by each wire; and creating a computer code interpreted by a simulator, by transformating each line of the simulation table TS into a set of computer code lines according to the input and output equipment.