The New Generation of PowerPC VMEbus Front End Computers
for the CERN SPS and LEP Accelerators Control System.

P. Charrue, A. Bland, F. Ghinet,
P. Ribeiro, M. Vanden Eynden
CERN - 1211 Geneva 23 - CH

The CERN SPS and LEP PowerPC Project is aimed at introducing a new generation of PowerPC VMEbus processor modules running the LynxOS real- time operating system software. This new generation of front end computers using the state- of- the- art microprocessor technology will first replace the obsolete Xenix PC based systems (about 140 installations) successfully used since 1988 to control the LEP accelerator. The major issues addressed in the scope of this large scale project are the technical specification for the new PowerPC technology, the re- engineering aspects, the interface with other CERN wide projects, and the set up of a development environment.

Fully handled with the IEEE Software Engineering Standards, this project offers also support for other SPS and LEP projects interested in the PowerPC microprocessor technology.