Glasgow Embedded / Glasgow - History

applet.interface.i2c_controller: use clock divisor API.

The way this is done is rather hacky, done so to avoid modifying
the existing I2C initiator as much as possible (since it is reliable
and also verifying I2C gateware is very difficult).

At some later point the existing I2C gateware will be replaced with
a stream-based one anyway. Then all of this will go away.

applet.interface.i2c_controller: redesign API and add tests.

applet.interface.i2c_{initiator→controller}: follow the spec.

manual: `pdm live`: watch source directory for changes.

cli: simplify/clarify argument group titles.

A typical applet would now have:

* positional arguments
* options
* configuration

In the future we might also unify `add_setup_arguments` with
`add_build_arguments`. The argument (no pun intended) to have them be
separate was that the latter influences gateware build and the former
does not, but this is an artificial and mostly meaningless division,
especially with the V2 API.

applet.interface.i2c_initiator: remove `--pulls` option.

The main reason to make pull resistor state configurable (besides
compatibility with revAB, which is now handled centrally) is to avoid
sourcing too much current. However, it doesn't seem like the added 330
microamps (at 3.3 V) is going to make any difference in any real-world
situation. Forgetting `--pulls` however is a very real source of
frustration.