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2024-04-23

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Hardware

  • Backplane:
    • No updates
  • GRIM Reefer:
    • Worked very well in an L1 this weekend
    • Buzzer works

Software

  • Aaron
    • Little SW work done past week because ski trip and business trip (smile) 
      • Probably won't be able to write as much software until after I move to LA in 2 weeks
      • Still reviewing people's PRs though. I can still continue to review
        • Nice job to Richie for GRIM and Nate for radio module work!
    • Did work with Donovan to get us a Segger sponsorship though!
      • 2 JLink Pluses (Worth ~$500 each)
        • Like the STLink, but better. Unlimited hardware breakpoints and faster flash speed
        • Real benefit though is to use software to profile our RTOS and benchmark our software iterations in the near future
      • 1 Flasher Portable Plus (Worth ~$1200)
        • Probably should've just asked for more JLinks lmao
        • Anyways, we can store multiple different binaries and flash our flight hardware in the field without a computer
      • Yes, equipment is absurdly expensive and a very lucrative market. More sponsorships soon 🙊
    •  Remaining things to get done before IREC:
      • Weekly reminder to figure out issues with the I2C bus. This goes for both sensor module and GRIM (and maybe POTATO. Need to test the LPS sensor more)
        • Issues found on sensor mod and GRIM haven't been seen on power module which is running I2C at 400 kbit/s
        • GRIM I2C seems to not die once I2C speed is dropped down to 100 kbit/s
        • Sensor Module I2C takes a little longer to die when dropped down to 100 kbit/s reading a single sensor every 50 ms
          • When reading around every second, it won't rashthe bus continues to work
      • Getting the data logging library up. Was almost done minus some testing 2 weeks ago. 
      • Software state machines for data logging management 
    • Might've started smol rewrite of GSW which is a less important side thing that won't get in the way of finishing FSW (big grin)
      • Will probably be worked on after IREC, but something to keep on software people's radar
      • Written in Golang which is good for networking and concurrency based applications (like the GSW 👀)
        • Also more benefits like better memory safety, build process, analysis tools, etc.
        • Redesigned and rewrote how the vehicle/telemetry configuration 
        • Evaluating whether we should continue with shared memory for IPC. Can move to slower, safer IPC methods for rockets. Might not be fast enough to handle engine tests though, but can't tell without further benchmarking.
    • Need to talk to structures. We should see about getting a RocketPy simulation for the IREC tech report. 

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Software: Aaron Chan (RIT Student)

    • Sensor Module
      • "have you been able to work with Nate at all on the sensor mod ethernet since Sat?" - Ben
        • No. All I got was a screenshot of a bunch of shit failing out. Will check when I have hardware in hand tomorrow (Im also coming in tomorrow (big grin))
      • Sat down with Brian to do some sensor module software
        • Hopefully reading temperatures wont take him too long
      • Decided to go and bang out reading all 5 other sensors last night (it'll work the first try. It did compile on the first try so it should totally work)
    • Radio Module
      • Wrote the receiver code. Too lazy to test it too tho
        • Will test tomorrow probably
    • Moment of truth tomorrow? Will we get backplane V2 tomorrow? WIll backplane work!?!? Stay tuned... 
    • Other news:
      • Space Race wants me to do code reviews for their software once they write it. If other sw people want to join feel free.

2024-03-26

Attendees:

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  • Power and Sensor mods have arrived!!!
    • Somewhere on RIT's campus
    • Probably get them Thursday
  • Backplane Magnetics:
    • Reworked Kludge to match devmod
      • To be tested as soon as possible
    •  James finished designing Kludge 2
      • Can order tonight
  • GRIM Reefer:
    • Layout is reefing
    • Handing over to Sam after diff pair is figured out
    • Everything fits (POTATO is crying)
  • POTATO:
    • No one is here
    • They started their layout
    • Its really small
    • Damian Suarez (RIT Student): Schematic edits where made and Layout is 90% done just have to do the RS-485 diff pair then we are ready for review (After many hours of praying/crying).

Software:

  • Aaron Chan (RIT Student)
    • Can non deterministically initialize the GPS driver
    • Need to find more time to do sw (smile)
    • Will work on Ethernet receive again this week.

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  • Richie:
    • Worked on ADC driver and how Zephyr does time
  • Nate Aquino (RIT Student):
    • Aaron opened a github issue in ubxlib. More than likely starting Thursday (time permitting) I will start on a different task.
  • Aaron Chan (RIT Student)
    • Lots of shit
    • More progress on Ethernet receive. Shooting for this week, but thats hopeful
    • Helped debug a lot of Ublox issues. Need to open a ticket since it seems we did things correctly, but its failing to initialize

2024-01-30

Attendees:

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