Wed Aug 15 15:02:30 EDT 2018


spi seems to be working.  now:
- create flow to push program out to .bin file
- create test file that emulates spi upload at 3MHz +- some fractional error
- have it put a pattern on the LEDs, test with rle sim

EDIT: Running into a problem.  Instead of nesting all these things, it
might be better to preform the composition inside one top-level function.

Something like "make_soc", where all the components are passed in.

- instruction sequencer
- boot (memory write)
- bus
- reset circuitry