140 lines
4.1 KiB
Markdown
140 lines
4.1 KiB
Markdown
# Bachelor Thesis Tex-files
|
|
|
|
## Timeline
|
|
|
|
| Date | |
|
|
| --- | --- |
|
|
| 7.6. | Start |
|
|
| 14.6. | **Table of Contents** |
|
|
| 9.8. | last possibility for "first draft"|
|
|
| 30.8. | Deadline |
|
|
| 6.9. | Kolloquium |
|
|
|
|
## Content
|
|
|
|
- I2C
|
|
- v2
|
|
- [x] Umbau
|
|
- [x] **packed** union based data structures (removes the need for magic numbers
|
|
- [ ] (safe types inside `pi2cproto.h`)
|
|
- [x] ballast
|
|
- [x] reused
|
|
- remaining compatability to v1
|
|
- [ ] new
|
|
- [x] UUID readout
|
|
- [x] r/w-ablility for both 1.8V potentiometers
|
|
- [x] raw memory mapping
|
|
- [x] why is `mon48v = 0x11`?
|
|
- missing `__attribute__((packed))` declarations
|
|
- [x] why are `digipoti` and `anapoti` only readable from `0x02` and `0x04` not partial?
|
|
- same as above
|
|
- [ ] instability on mass communication
|
|
- timebased / overflow ?
|
|
-> most likely race-condition on writing any value to (semi-)global objects
|
|
- gdb-server feasable? -> NO: only 6 registers for breakpoints and no stacktrace
|
|
|
|
- Calibration
|
|
- [x] characterize adcbehaviour
|
|
- [x] plot resulting fitted incline of $`\Delta`$V vs. num. of readcycles
|
|
- [x] see if v_pin same as v_keith_pin
|
|
- on dV of **small enough** -> adc circuit working correctly -> calib
|
|
- [x] 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`
|
|
- [x] polynomials
|
|
- [x] polynomials rw-able
|
|
- [x] 10I calc
|
|
- [x] differences between PIts?
|
|
- if yes then we need a `PITDB` -> `pitdb.yaml`
|
|
- standard only for default
|
|
- [ ] Voltage
|
|
- [x] redo after selection of `sampleTicks` value
|
|
- [x] 48V
|
|
- [ ] 10V
|
|
- [x] 1.8V ana
|
|
- [x] 1.8V digi
|
|
- [ ] calibrate based on fit
|
|
- [ ] 48V
|
|
- [ ] 10V
|
|
- [ ] 1.8V ana
|
|
- [ ] 1.8V digi
|
|
- [ ] Current
|
|
- [ ] without calib
|
|
- [x] 48I
|
|
- [x] 1.8I ana
|
|
- [ ] 1.8I digi
|
|
- [ ] with calib
|
|
- [ ] 48I
|
|
- [ ] 1.8I ana
|
|
- [ ] 1.8I digi
|
|
- 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)
|
|
- (possibility: unused reticles on each wafer can be used to get some feedback on initial calibration, would result into additional dynamic values for calculation and calibration o fthe 1.8V regulation)
|
|
- [ ] write / formulate approach and resulting formula / algorithm
|
|
|
|
## Table of Contents
|
|
|
|
- Introduction
|
|
- What is this about?
|
|
- What's the PowerIt Subsystem?
|
|
- Goals
|
|
- Firmware
|
|
- Calibration
|
|
- Regulation
|
|
- Theory
|
|
- Hardware Component Behavior
|
|
- ADC Calibration
|
|
- 1.8V Output Regulation
|
|
- Experiments
|
|
- Setup
|
|
- Hardware
|
|
- Softwarestack
|
|
|
|
```mermaid
|
|
graph LR;
|
|
fw[PIt Firmware] --- pot[Potentiometers];
|
|
fw --- srv["PItStop Server (RPi)"];
|
|
srv -.- agg[PItStop Aggregator];
|
|
```
|
|
- Characterization
|
|
- Voltages
|
|
- Currents
|
|
- after Calibration
|
|
- Voltages
|
|
- Currents
|
|
- 1.8V Regulation
|
|
- Characterization of Dropoff
|
|
- after Correction
|
|
- Results
|
|
- Firmware
|
|
- I$`^2`$C mapped register- Table
|
|
- Calibration
|
|
- Calibration-Table
|
|
- "How to calibrate a PowerIt"
|
|
- Regulation
|
|
- Outlook
|
|
|
|
## Notes
|
|
|
|
### 1V8
|
|
RS = 2* * 4.7k
|
|
RP = 75k
|
|
|
|
### 9V6
|
|
R1 = 30k
|
|
R2 = 10k
|