Particles and Fields Package Critical Design Review May

Particles and Fields Package Critical Design Review May 23 -25, 2011 GSE Timothy Quinn MAVEN PFP ICDR, May 23 – 25, 2011 13 -1

Agenda • • • Component Overview Data Viewing Development Status Anomaly Reporting and Tracking Test Setups MAVEN PFP ICDR, May 23 – 25, 2011 13 -2

Component Overview • The main components of the MAVEN GSE are: – MAVEN Instrument Simulator GSE (MISG) • PFDPU/Instrument simulator – Ground Support Equipment Operating System (GSEOS) • Telemetry and Command Control – Spacecraft Simulator GSE (SSG) – Additional Test Equipment (Power Supplies, Manipulator, Ion Gun, etc. ) MAVEN PFP ICDR, May 23 – 25, 2011 13 -3

Component Overview - MISG • MAVEN Instrument Simulator GSE (MISG) – Zest. ET 1 off-the-shelf module • High-speed Ethernet (TCP/IP Offload) engine (TOE) • Configurable (Xilinx) FPGA – Instrument/PFDPU interfaces, along with the data flow and control are implemented in the FPGA, which interacts with the TOE to transfer data to/from the Host Computer – Base (Interface) Board connects to the Zest-ET 1 FPGA • Provides buffers and connectors that match the MAVEN-PFDPU flight configuration • Houses the Actuator Control circuitry, controlled and monitored by the Zest-ET 1 FPGA – Whenever possible, the MISG uses the actual flight design, assuring that the simulated interfaces match the flight hardware (The interface between the PFDPU and Instruments is a clocked serial bit-stream) – Communicates with GSEOS via TCP/IP MAVEN PFP ICDR, May 23 – 25, 2011 13 -4

Component Overview - MISG • MAVEN Instrument Simulator GSE (MISG) – PFDPU test interface for instrument bench level testing • Sends commands to and receives telemetry from the Instrument under test • Provides an independent but synchronous “high-speed” (8. 34 or 16. 78 MHz) clock for those instruments that require it and a powersupply synch signal – Instrument test interface for PFDPU testing • MISG receives commands from and sends telemetry to the PFDPU under test • Simulated instruments include SEP, SWEA, SWIA, STATIC , MAG (1 and 2), and LPW instruments • MISG telemetry production is impartial with respect to the instruments; each of the nine units simulated is personalized via its loaded pattern and operates synchronously to its own dedicated clock supplied by the PFDPU. (In practice, these clocks are 1. 048 MHz, derived from the PFDPU Master clock. ) MAVEN PFP ICDR, May 23 – 25, 2011 13 -5

Component Overview - MISG Block Diagram MAVEN PFP ICDR, May 23 – 25, 2011 13 -6

Component Overview - MISG Front/Back Views MAVEN PFP ICDR, May 23 – 25, 2011 13 -7

Component Overview - MISG Physical Layout Diagram MAVEN PFP ICDR, May 23 – 25, 2011 13 -8

Component Overview - MISG MAVEN PFP ICDR, May 23 – 25, 2011 13 -9

Component Overview - GSEOS • Off-the-Shelf software for Telemetry and Command (T&C) control • Operation is managed through the use of configuration files and the Python scripting language • Ingest the Command Telemetry Definition Document (CTM), an excel spreadsheet, and convert it into all of the necessary GSEOS command telemetry definition files, telemetry limit files, conversion formula definition files, and other GSEOS configuration files • Supplies a scripting interface for closed loop instrument control MAVEN PFP ICDR, May 23 – 25, 2011 13 -10

Component Overview – GSEOS Block Diagram MAVEN PFP ICDR, May 23 – 25, 2011 13 -11

Component Overview – GSEOS Development Process: Review FPGA Specification MAVEN PFP ICDR, May 23 – 25, 2011 13 -12

Component Overview – GSEOS Development Process: Generate Instrument CTM MAVEN PFP ICDR, May 23 – 25, 2011 13 -13

Component Overview – GSEOS Development Process: Generate GSEOS Config Files from CTM MAVEN PFP ICDR, May 23 – 25, 2011 13 -14

Component Overview - GSEOS Development Process: Generate Common GSEOS Displays MAVEN PFP ICDR, May 23 – 25, 2011 13 -15

Component Overview - GSEOS Development Process: Generate GSEOS Instrument Specific Desktop and Displays MAVEN PFP ICDR, May 23 – 25, 2011 13 -16

Component Overview - GSEOS Development Process: Generate GSEOS Instrument Specific Desktop and Displays MAVEN PFP ICDR, May 23 – 25, 2011 13 -17

Component Overview - GSEOS Development Process: Generate Instrument Scripts MAVEN PFP ICDR, May 23 – 25, 2011 13 -18

Component Overview - SSG • Spacecraft Simulator GSE (SSG) – Hardware interface controlled by Lab. Windows (C) program – Lab. Windows program communicates with GSEOS over TCP/IP MAVEN PFP ICDR, May 23 – 25, 2011 13 -19

Data Viewing • GSEOS Real-Time Digital and Analog Housekeeping Displays – Single value raw/converted – Plots: Stripchart, bar graph, bitmap MAVEN PFP ICDR, May 23 – 25, 2011 13 -20

Data Viewing • Near Real-Time Displays – Matplotlib – Python plotting library called from GSEOS MAVEN PFP ICDR, May 23 – 25, 2011 13 -21

Data Viewing • Near Real-Time Displays – IDL • GSEOS continuously saves data to files during test • Data files accessed on shared disk by scientists/engineers MAVEN PFP ICDR, May 23 – 25, 2011 13 -22

Development Status - MISG • 9 of 12 systems delivered (some development areas sharing), remaining systems under development/troubleshooting • Current FPGA version: 4. 0 • FPGA upgrades pending for LPW/MAG MAVEN PFP ICDR, May 23 – 25, 2011 13 -23

Development Status - GSEOS • Shared component set developed and tested • Basic MISG T&C communications • Basic SSG T&C communications • Basic instrument specific component set developed and tested • FPGA specifications used to create CTM • CTM converted to GSEOS configuration files • Basic displays/scripts built • Active instrument testing since 12/2010 (LPW) • Instrument script development underway • Continued display development • Telemetry limits and conversions • GPIB test equipment control • Power supplies complete • Manipulator, ion gun, high voltage under development MAVEN PFP ICDR, May 23 – 25, 2011 13 -24

Development Status - SSG • Current software version 3. 0 • Implements: • Time Update Commands • PFDPU Command Telemetry Processing • Zone Alerts • Timing Test • Minimum command delay of 30 ms still to be implemented MAVEN PFP ICDR, May 23 – 25, 2011 13 -25

Anomaly Reporting and Tracking • Currently reports emailed to developer • Future: JIRA – Commercial Issue and Project Tracking Software • Browser based bug reporting system • Currently being installed on MAVEN server • Current Anomalies • GSEOS-MISG TCP connection dropout 3/2011 • GSEOS-SSG telemetry sync error 5/2011 MAVEN PFP ICDR, May 23 – 25, 2011 13 -26

Test Setups • The MAVEN GSE will support 3 types of test setups for the PFP before it’s shipped off to the spacecraft manufacturer for mission level I&T – Instrument Bench – PFDPU (DCB/FSW) Bench – PFP I&T MAVEN PFP ICDR, May 23 – 25, 2011 13 -27

Test Setups SWEA Bench MAVEN PFP ICDR, May 23 – 25, 2011 13 -28

Test Setups SWIA Bench MAVEN PFP ICDR, May 23 – 25, 2011 13 -29

Test Setups SEPBench MAVEN PFP ICDR, May 23 – 25, 2011 13 -30

Test Setups SEP Actuator Bench MAVEN PFP ICDR, May 23 – 25, 2011 13 -31

Test Setups STATICBench MAVEN PFP ICDR, May 23 – 25, 2011 13 -32

Test Setups DCBBench MAVEN PFP ICDR, May 23 – 25, 2011 13 -33

Test Setups FSWBench MAVEN PFP ICDR, May 23 – 25, 2011 13 -34

Test Setups PFP I&T (STATIC Engineering Model) MAVEN PFP ICDR, May 23 – 25, 2011 13 -35