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Solar Probe PlusA NASA Mission to Touch the Sun
Geff [email protected]
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, [email protected] Mike Furrow, SPP Mission Systems Software Lead,
[email protected] Martha Kusterer, SPP SOC Lead, [email protected] Thomas Hauck, GSEOS, [email protected] Harry Eaton, Embedded SW Doug Wenstrand, FPGA Design Geff Ottman, Engineering Support, [email protected]
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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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