Attendees

Minutes

@David Burnett Workshop went well! L12 didn’t program. 1 of 8 nRF DKs wouldn’t program. 2 McCoy boards wouldn’t respond but the workshop wasn’t designed to work with those. Otherwise, students successfully got RF transmission running and received by OpenMotes.
@Austin Patel merged code and not sure what was wrong with Fil’s boards because they appear to work out of the box.
@Tengfei Chang verified BSP functions work. Next step is to run the stack.
- When transmitting, waiting a while after tx_enable is necessary before calling the transmit function.
- The interrupt happens if you call it too early but the openmote doesn’t hear anything.
- From p. 77 of Sahar’s thesis (https://www2.eecs.berkeley.edu/Pubs/TechRpts/2016/EECS-2016-71.pdf) it looks like the necessary delay might be from the TX FIFO being loaded.
- Need to figure out a way to determine when the FIFO is finished loading so the waiting isn’t open loop. Current code is 8 ms but @Tengfei Chang experimented and 0.5 ms wait time works.
  - There is a TX_LOAD_DONE interrupt
@David Burnett
- workshop is a success
- own hardware
- 4 students
  - 2 students successful; sweep LO, received on the OpenMote
  - 2 students has issues:
    - one nRF-DK didn’t work (out of 8)
    - one Sulu (L12) wouldn’t work (@Fil Maksimovic took back)
    - two McCoy, wasn’t able to work