Solar Probe PlusA NASA Mission to Touch the Sun

Geff Ottmangeffrey.ottman@jhuapl.edu

443-778-6205Feb. 25, 2013

SPP Spacecraft Emulator (SCE) Introduction

Updated on 3/1/13 after first-round of Instrument Telecons. Updates are in red text.

Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

Agenda

Staffing SPP Spacecraft Block Diagram Review Chart Presentation “Solar Probe GSEOS Presentation-

mods_1.ppt” APL Internal Link: \\davis\Project\Solar Probe Plus\Instruments\

SC_Emulators\Presentations\Solar Probe GSEOS Presentation-mods_1.ppt

RBSP Mini-Emulator Overview RBSP Full-Emulator Functionality SPP Emulator Updates Emulator Test Support SPP Emulator Deliverables RBSP Lessons Learned Conclusion

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

SCE Staffing

Sam Sawada, SPP Emulator Lead, Samuel.Sawada@jhuapl.edu Mike Furrow, SPP Mission Systems Software Lead,

Mike.Furrow@jhuapl.edu Martha Kusterer, SPP SOC Lead, Martha.Kusterer@jhuapl.edu Thomas Hauck, GSEOS, hauck@gseos.com Harry Eaton, Embedded SW Doug Wenstrand, FPGA Design Geff Ottman, Engineering Support, Geffrey.Ottman@jhuapl.edu

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

SPP Spacecraft Block Diagram

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

SPP Instrument Data Interfaces

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

SPP GSEOS Presentation

APL Internal Link: \\davis\Project\Solar Probe Plus\Instruments\SC_Emulators\Presentations\Solar Probe GSEOS Presentation-mods_1.ppt

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

SCE Mini-Emulator

Provides Instrument Data Interfaces only GSEOS Interface is fully compliant Non-flight use only

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

SCE Full-Emulator

Provides Instrument Data, Power and Temperature Interfaces GSEOS Interface is fully compliant Designed for use with Flight hardware

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

SPP SC Emulator Updates

Update Requirements to SPP Instrument ICDs and SpW ICD for WISPR DPU

Provide A/B UART interfaces (SCE control of active port; inactive port will be monitored only)

Provide SpW link with configurable SpW bus schedule Support Virtual PPS (no distinct 1PPS line) Support 400 KBAUD Telemetry link from FIELDS and SWEAP GSEOS version 7 will be used for SPP Mini- and Full-Emulators will have gated-PPS test output with

GSEOS command for enable/disable/one-shot with programmable pulse width and delay from PPS

SCE data connectors will be female MDMs SCE team will investigate isolating the USB-power-path into the

Emulators (either a power-switch or single plug)

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

Emulator Team Test Support

SCE deliverables will be the Mini- and Full-Emulators and GSEOS deployment via downloads.

SCE Team will develop Hardware and Software User Manuals User’s Manual will describe host PC configuration User’s Manual will describe steps to complete a GSEOS,

embedded firmware and embedded software upgrade SCE Team will conduct HW/SW Requirements Review and Peer

Review of First-Circuit Interfaces. Instrument Team participation is welcome.

SCE Team will maintain a website forum for SCE Users

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

Instrument Team Test Support

Instrument Teams will provide: Host PC to run GSEOS

The Mini-Emulator will be designed and tested for compatibility to 64-bit Windows 7 (32-bit Windows 7 would be OK with the proper Opal Kelly drivers and minor GSEOS configs)

The Full Emulator will offer additional flexibility as requested GSEOS support of SOC operations will offer additional flexibility as

requested SCE will use an Opal Kelly XEM6010, the PC will need to have driver

version 4.x installed (current designing to 4.2.5) Harnessing Flight-rated power supply for use with flight-unit testing using the

Full-Emulator As needed for HW development , test and debug: Detailed

analysis and compliance GSE (O’scopes, logic analyzers, SpW/UART protocol analyzers, EMI/EMC and EDTRD-specific testing)

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

Emulator Deliverables

Mini-Emulator earliest delivery is in June 2013 Full-Emulator earliest delivery is in April 2014 Emulator Schedule updates will be via the Project IMS

Requests for changes to emulator quantities should be sent through the applicable APL Instrument Manager.

Emulator spares will be held at APL and maintained by the Project Office. Coordination of spares will be through Patrick Hill.

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FIELDS WISPR ISIS SWEAPProject Spares

Mini-Emulators qty 4 2 3 2 2

Full Emulators qty 1 2 3 2 2

Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

RBSP Lesson Learned

Power Interface – PDU-style circuit breaker was omitted in S/C power service

Emulator Grounding with UUT and GSE – Clear grounding diagram is needed for all relevant configurations

Flight test requirements – Only the Full-Emulator with a in-cal external power supply should be used for flight

LVDS Interface ICs – ESD-protection is manufacturer specific and flight testing interfaces need to be compatible; use unscreened flight parts or verify compatibility of interfaces during transients and fault conditions

SCE standardization – develop emulators to minimize Instrument-specific customizations and features/add-ons

ICD Maturity – SCE/GSEOS can only be as current as the latest revisions of the ICDs and Requirements; continued communication is beneficial to everyone

SCE field support – RBSP emulators experienced field returns and in-process updates; Instrument teams should plan for these especially on the Mini-Emulator. Firmware and GSEOS SW updates will not require HW return(s).

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Solar Probe PlusA NASA Mission to Touch the Sun

SPP Emulators

Conclusion

Instrument concerns Instrument-specific requirements

Required power services Required RTDs

Questions?

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