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Version 27
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Date
Attendees
Goals
- Get updates
- Get comprehensive TODOs between now and JLC delievery
Discussion items
| Item | Who | Notes |
|---|
| Board updates |
|
|
| Software | | Updates: - Sensor drivers written
- Onboarding
TODO: |
| Radio Module | | Updates: - Added ESD to connectors
- Added UART jumpers to GPS and a debug bus
- Schematic updates "beautified"
- Board Ready for review
To-Do: |
| Power Module |
| Updates: - Design voltage/current sense
- Select passives for most ICs
- Schematic is 60% complete
To-Do: - James May (RIT Student) Update Block Diagram to reflect current design
- James May (RIT Student) simulate umbilical switch in LTspice, look at power loss
- James May (RIT Student) Assemble BOM & include all components
- Create BOM file
- Add switcher
- Add switcher passives
- Add umbilical switch components
- Add monitoring components
- Add monitoring passives
- Add microcontroller
- Add microcontroller passives
- Add WIZnet
- Add WIZnet passives
- Add flash memory
- Add flash passives
- James May (RIT Student) Spec shielded inductors
- James May (RIT Student) Complete schematic capture
- Complete switcher design
- 5V switcher
- 3.3V switcher
- Backplane connector
- current measure
- voltage measure
- WIZnet
- Complete battery/umbilical switch design
- Battery/umbilical switch
- Programming interface
- Add microcontroller & logging circuitry (should be roughly identical to other modules)
- James May (RIT Student) Complete layout
- Place components
- Calculate power trace widths
- Route power traces
- Route signal traces
- James May (RIT Student) Simulate switchers in Webench
|
|
| Updates: - Started reviewing some schematics with JIM
- Continuing work on schematics
TODOs: - Updated Block Diagram
- All Breakouts Ordered
- Schematics Created
- MS5607
- BMP390
- ADXL375
- LSM6DSL
- LIS3MDL
- TMP117
- SHTC3
- W25Q128JVSIQ
- Status LEDs
- W5500 + Connector + LC Filter
- STM32
- Higher Level Sensor Schematic
- Full Board Schematic
- Schematics Reviewed
- MS5607
- BMP390
- ADXL375
- LSM6DSL
- LIS3MDL
- TMP117
- SHTC3
- W25Q128JVSIQ
- Status LEDs
- W5500 + Connector + LC Filter
- STM32
- Higher Level Sensor Schematic
- Full Board Schematic
- Get I^2C Addresses for Sensors
- Board Layout Completed
- Board Layout Reviewed
|
| Autopilot Module | | Updates: - Changed from Wago terminals to standard screw terminals for charge lines
- Reduced from 4 to 2 charge lines
- Did basic layout of charge lines
- Fixed address lines to go to inputs on Vocore
- Schematic is 90% complete
- Posted GPIO default state question to Vocore forum
TODOs: - Schematic
- Finish rest of backplane connector (GPIOs and LEDs)
- Clean up schematic
- Run ERC and make sure there are no design breaking errors
- Layout
- Placement of all components (really just one more charge line which is copying the one i've already done)
- Route all signal traces
- Route power traces/pours
- Run DRC and make sure there are no design breaking errors
|
Connector spec |
| Idea 1: "Horned connectors" going sideways - Positively locking
- Board-edge would look very neat
- Board-edge would take up too much space - we have 130mm width, 60mm per board is not enough margin
Idea 2: Back to proper backplane - Vertical connectors on modules pass through slots in the sled, connect to the backplane
- Sandwich the plastic sled by the PCBs
- Screwing everything to a common sled is positively locking
- Less wires means less integration hassle
- Maintain ability to use cables
- Need to specify connector offset on each module
- Radio module needs to send SMA connectors through the sled or out the short edge
- Need to carefully solder connectors so they're not canted
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Action items