SPI controller for A1200 (clock port)

[Niklas]

Originally Posted by Mathesar

I have implemented the spi part as a resource for now (but only very simple, the resource just presents a semaphore, the actual SPI code is in the SD/network driver) but I think a device would make more sense.
Such a device would then need to support functions to set polarity / clockphase, speed, etc, etc. It would also need proper fallback in case some hardware doesn't support all the features (like my hardware )

This sounds very interesting! Are you on any of the Amiga/retro Discord servers? I find it's much quicker to have interactive discussions there. Anyone interested could join the discussion and we should be able to hash out an API in not too long time (possibly based on what you already have).

I'm on the Discord server mentioned on this page, https://eab.abime.net/showthread.php?t=85960, my username there is the same as here.

[Mathesar]

Originally Posted by Niklas

This sounds very interesting! Are you on any of the Amiga/retro Discord servers? I find it's much quicker to have interactive discussions there. Anyone interested could join the discussion and we should be able to hash out an API in not too long time (possibly based on what you already have).

I'm on the Discord server mentioned on this page, https://eab.abime.net/showthread.php?t=85960, my username there is the same as here.

I am not on Discord, only on this forum

[Mathesar]

Maybe an Amiga OS guru could comment here but:

AFAIK, you can load a device by using loadmodule or by making it ROM-able and creating a custom Kickstart or even by making a full-fledged auto-config device.

The SPI device need to be in the system from the start if we would want to boot from an SD device. But what if it is a resource?

AFAIK, a resource needs to be loaded by some piece of software. There is no automated mechanism in the OS to do this like for devices (or so it seems?) How would this work?
Create a dummy device that installs the resource as part of its initialization routine?

[Bruce Abbott]

Originally Posted by Mathesar

The SPI device need to be in the system from the start if we would want to boot from an SD device.

Why would we want to boot from it?

[Mathesar]

Originally Posted by Bruce Abbott

Why would we want to boot from it?

Why not? It is the easiest harddisk alternative nowadays.

[indigolemon]

Originally Posted by Bruce Abbott

Why would we want to boot from it?

From another thread:

Originally Posted by Bruce Abbott

Because we can.

How many times do I have to tell you - this is a hobby. We aren't doing it because we have to, but because we enjoy doing it.