Attendees

Minutes

@Joshua Alexander https://docs.google.com/presentation/d/1-9L8OkVl-w5GmbFYmV3mfrPeIWW8XqER/edit?usp=sharing&ouid=115125070153404772120&rtpof=true&sd=true
- 1.1 V
  - tap and continuous connection to VDDD resulted in successful scum firmware execution when programmed via 3wb from nRF
    - Gets stuck in optical calibration mode only if programming from 3wb from nRF
- 1.8 V
  - Four different programming methods were not successful
- 1.1 V tap results are promising with regard to only needing resistors to generate 1.1 V instead of regulator
  - Use expected VDDD current to size resistor from 1.8 V nRF pin to 1.1 V VDDD via 0.7 V drop over the resistor
Still need to make a cohesive picture of voltage ripple with DC/DC converter and printed battery at high time resolution
@Kristofer PISTER recommended using a spare Sulu board to analyze 1.8 V DC/DC ripple vs input voltage range over battery discharge range and load current in boot/sleep/TXRX modes
Next recommended test is lighthouse functionality verification
Very basic sensor ADC test appreciated too
PCB assembly revision plan made