Transcript PACS OBSW Simulation/Test A.Mazy (CSL), S.Pezzuto (IFSI), A.N.Belbachir (TUVIE), H. Feuchtgruber (MPE)

PACS IBDR
27/28 Feb 2002
PACS OBSW Simulation/Test
A.Mazy (CSL), S.Pezzuto (IFSI), A.N.Belbachir (TUVIE),
H. Feuchtgruber (MPE)
OBSW Simulation
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PACS IBDR
27/28 Feb 2002
Virtuoso Emulator under Windows
• Virtuoso kernel services are mapped onto windows
services
• Services currently implemented :
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Tasks
Semaphores
Resources
Events
FIFOs
Timers
Link 1355 (mapped onto TCP/IP connection or using PCISpacewire board)
OBSW Simulation
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PACS IBDR
27/28 Feb 2002
OBS Simulators on Virtuoso Emulator
• Pros
– 95 % of OBS code is reused
for simulator
– Powerful Windows tools
available for debug
– Run on any desktop PC
– Can be connected to real
HW
• Cons
– Scheduling behavior is
different from Virtuoso
– Assembly code can not be
simulated
 Perfect tool to test the functionality of the OBSW,
but not the performance.
OBSW Simulation
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PACS IBDR
27/28 Feb 2002
PACS OBSW Tests (1)
• “Test Day” at CSL 6-Feb-2002
– Simulators of DPU, DMC, SPU-SWL and SPU-LWL OBSW
running on 3 PCs
– Certain “bypasses” are implemented due to the simulator
environment (1553 interface to DPU)
– Visualization of results is implemented as “printf” statements
to screens or files
– Major parts of the different individual OBSW pieces of DPU,
DMC, SPU-SWL and SPU-LWL are already implemented. No
compression/reduction running at this point yet.
OBSW Simulation
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PACS IBDR
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Test Set-up
0-M
4000
4-S4000
DPU
Sim
ulator
[PC1]
1-M
4001
2-M
4003
2-M
4002
DM
C
Sim
ulator
[PC2]
5-M
4004
1-S4002
2-S4003
RedSPU
Sim
ulator
[PC3]
OBSW Simulation
1-S4001
2-S4004
BlueSPU
Sim
ulator
[PC3]
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PACS IBDR
OBSW Simulation
27/28 Feb 2002
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PACS IBDR
27/28 Feb 2002
PACS OBSW Test (2)
• Major debugging on sub-system protocol issues done
 online updates
• Emulator debugging  online update
• Inspection of error handling between sub-systems
 online updates
• HK packet transfer from sub-units to DPU verified
• TC+Acknowledge path DPU - DMC verified
• TC+Acknowledge path DPU - SPU-SWL and DPU –
SPU-LWL verified
OBSW Simulation
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PACS IBDR
27/28 Feb 2002
PACS OBSW Test (3)
• Science packet transmission from DMC – SPU verified
(blue and red, photometry and spectroscopy)
• 1 OBCP has been executed including a DMC
sequence (staring photometry)
• Science packets of “SPU-simulated” data have been
received by DPU but still some communication
problems left, but identified.
• Diagnostic data collection not yet verified due to
failures  debugging done after the test
• Entire Science TM path from DMC-SPU-DPU not yet
tested due to lack of time.
OBSW Simulation
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PACS IBDR
27/28 Feb 2002
Conclusion
• The emulator+simulator exercise has demonstrated
its usefulness and value for PACS OBSW development
and debugging
• Continue efforts on the simulators
• Update software to resolve identified problems
• Update involved documentation
• Next “Test day” at CSL: 6/7-Mar-2002
OBSW Simulation
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