A Microprocessor System Simulation of Engine Control Modules

An IBM-370 microprocessor system simulation is presently being developed to simulate engine control modules. It can simulate any of the production microprocessor engine control modules presently designed by Delco Electronics. It is a system simulation and includes bit for bit models of the microprocessor which use the actual microprocessor ROM code as well as the transducer and I/O chip models required to describe the presently designed engine control modules. It can and has been used for error or sensitivity analysis, software verification, and engineering analysis of hardware and soft ware changes. It is an accurate, easy to use, and versatile tool for these purposes. This paper describes this microprocessor system simulation using examples to illustrate its capabilities, features, and uses.