Bachelor Thesis Tex-files

Deployed PDF

PDF

Content

• I2C

  • v2
    • Umbau
      • packed union based data structures (removes the need for magic numbers
      • safe types inside pi2cproto.h
    • old
    • ballast
    • reused
      • remaining compatability to v1
    • new
      • UUID readout
      • r/w-ablility for both 1.8V potentiometers
  • raw memory mapping
    • why is mon48v = 0x11?
      • missing __attribute__((packed)) declarations
    • why are digipoti and anapoti only readable from 0x02 and 0x04` not partial?
      • same as above

• Calibration

  • characterize adcbehaviour
    • plot resulting fitted incline of $\Delta $V vs. num. of readcycles
    • see if v_pin same as v_keith_pin
      • on dV of small enough -> adc circuit working correctly -> calib
    • reasoning for using a given sampleTicks value
      • smallest gain error -> inconsistent
      • smallest offset -> inconsistent
      • hightst samplerate -> sampleTicks = 1
      • pin plot -> sampleTicks = 0 is no go
      • pin plot -> sampleTicks in 1-7
  • polynomials
    • polynomials rw-able
  • 10I calc
  • differences between PIts?
    • if yes then we need a PITDB
    • if not then we can hardset those values
  • ADC vs. Keithley
    • redo after selection of sampleTicks value
      • 48V
      • 10V
      • 1.8V
    • calibrate based on fit
      • 48V
      • 10V
      • 1.8V
  • ADC vs. EL
    • without calib
      • 48I
      • 10I
      • 1.8I
    • with calib
      • 48I
      • 10I
      • 1.8I
  • Temp
    • accuracy
    • position in system
      • inside chip -> on underside of board, between frame and board
    • relevancy
      • peace of mind if readout correct and not too high (no experience)

• 1.8V Regulation

  • compare regulation concepts
    • there's overshoot: less oscillation is good, as long as we don't take forever to achieve those
    • stabilize
  • regulate the system (with missing information)
    • write / formulate approach and resulting formula / algorithm