Difference between revisions of "Talk:Lisa/Bone"

Revision as of 02:11, 15 April 2014

JKG Questions:

Do we need a power supply on the cape? It will increase cost quite a bit. If Lisa/M is still connected directly to peripherals it may as well get power from off-board, most vehicles already have a 5-6V servo bus

Neo: I thought the cape would have a voltage ragulator which can power the F4 and BBB. Maybe a different power rail for the servos.

fully-populated Lia vs Lisa/M?
- Allows (almost) all connections to be broken out through the cape and BBB -- 0.1" header pins on Lia and sockets on cape with screws to lock boards together
  - much less wire nest
- no header pin access to ANALOG1 or ANALOG2

NeoFromMatix Questions:

I would like to see a 0.1" pinout since this is much easier to solder and i can't see a large benefit of the molex connectors.
I would like it if we could flash the cape/F4 from the BBB

Note from Bryan:

The SPI bus on the BB only can act as master. This would make the BB have to do busy loops polling the autopilot to check for data. I propose CAN as it has error detection and data framing.
The lithium battery system only can act as a charger. The BB's power supply will not let it run on the nominal 3.6v of the lithium cell without a boosting SMPS.

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 NeoFromMatix Questions:
-* Is the plan to mount a Lisa/Mx on top of the BBB (just with an other board layout) or is this a completely new autopilot ? (for the second case we could use a larger MCU with more IO pins)
 * I would like to see a 0.1" pinout since this is much easier to solder and i can't see a large benefit of the molex connectors.
 * I would like it if we could flash the cape/F4 from the BBB