M3: ProDiver 525

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Kavita Arora (M3-1) Lisa Gentry (M3-2) Steven
Wasik (M3-3) Karolina Werner (M3-4)
Stage 9 Mar 29 Chip Level Simulation
Design Manager Steven Beigelmacher
Overall Project Objective To design a chip for a
SCUBA diver that does real-time calculations to
warn the diver of safety concerns including
decompressions sickness and lung overexpansion.
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Status

• Schematic Verification (done)
• LVS
• PressureCalc(done)
• timetoflight (done)
• timeleft (done)
• ascensionWatch (done)
• getK (done)
• safetyWatch (done)
• maxDepth (done)
• bottomTime (done)
• Top (done)
• Spice Entire Chip (in progress)

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Spice Simulation Strategy

• Running an example test vector through top level
  design in order to get timing characteristics
• In order to do this in a time efficient manner
  disconnecting the input to the registers in
  PressureCalc and adding input pins so that the
  pressure can be made large artificially quickly.

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TimeLeft
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AscensionWatch
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TimetoFlight
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Power Consumption

• Strategy to test power consumption test the
  effects of several different power levels on the
  module in order to find the lowest at which it
  still works.
• Also, we want to see if making any optimizations
  to the layout to decrease power consumption

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• Questions?