P&E Microcomputer Systems is an industry trendsetter in hardware and software development tools for Freescale microcontrollers. P&E takes pride in its committment to providing professional, low-cost development tools and prompt, knowledgeable customer support.

P&E Microcomputer Systems was founded in 1980 and incorporated in 1982 by Dr. David A. Perreault.

P&E Microcomputer Systems developed and marketed the first general purpose EPROM programmer. It was based on the Z80 microprocessor and provided the ability to reconfigure pinouts. The second product developed by P&E was an S100 bus-based ROM emulator. This product pushed forward the capability to rapidly develop microcomputer based systems.

Having developed a large number of microcontroller / microprocessor systems including both hardware and software, P&E capitalized on this experience and began developing software development tools. Much of this effort was directed toward simulators and cross-assemblers. P&E developed the concept of an in-circuit simulator. This device combines the big features of a simulator with the added advantage of real IO. This concept was used in Freescale's very successful promotion for the 68HC05K1 part called the KICS05.

More recently, P&E has developed in circuit emulators and in line EPROM/EEPROM programmers for Freescale's 68HC16 and 68HC3xx series of processors. These products were the first to use the background debug mode on these processors to provide full in-circuit simulation.