Data to Transmit
Data Rates:
- Baud (for transceiver): 115,200 to 250k (8us, 4us per cycle)
- tPD from trace length is mostly irrelevant (about 150 ps/in of trace)
- Datasheet:
- Rise time 70 ns
- Fall time 80 ns
- 8 us > (70ns + 80ns)
- Theoretical max is 1Mbps for the transceiver, but this can cause instability due to propagation delay
- Clock (for SPI): 5-10 MHz
- Higher speeds increase EMI, reflections, etc.
- Use external crystal oscillator for precision (our STM32 supports up to 50MHz)
- Rough calculation
...
- Reset motor driver faults (nSleep pin / 20-40 microseconds)
- Set STM modes (Safe, Science, Uplink) - Probably for Controls/Comms (keep here as reminder)