Design of the on-board application software for the instrument control unit of Euclid-NISP

Abstract

In this paper we describe the main requirements driving the development of the Application software of the ICU of NISP, the Near-Infrared Spectro-Photometer of the Euclid mission. This software will be based on a real-time operating system and will interface with all the subunits of NISP, as well as the CMDU of the spacecraft for the Telecommand and Housekeeping management. We briefly detail the services (following the PUS standard) that will be made available, and also possible commonalities in the approach with the ASW of the VIS CDPU, which could make the development effort more efficient; this approach could also make easier the maintenance of the SW during the mission. The development plan of the ASW and the next milestones foreseen are described, together with the architectural design approach and the development environment we are setting up.

Development of Embedded Boot Software for a Satellite Instrument Control Unit: Lessons Learned

“…The embedded boot software (BSW) is a small computer program responsible for ICU HW initialization and selftesting, maintenance of ICU on-board memories (RAM, EEPROM, and PROM), and ICU application software (ASW) launching. ASW [2] is devoted to manage all functionalities related to instrument command and control.…”