[Tinkerphones] Inferno on Letux 400 Minibook

[H. Nikolaus Schaller]

Hi David,


> Am 31.05.2021 um 17:49 schrieb David Boddie <david at boddie.org.uk>:
> 
> With a lot of help from Paul, I have been looking at running Inferno on the
> Letux 400 - see the attached picture.
> 
> I started with Paul's L4 port for the Ben NanoNote to get up and running
> because the supplied U-Boot sets up the framebuffer, making it easier to
> debug problems.
> 
> Ultimately, the size of the screen and the type of keyboard on the NanoNote
> make it less than ideal to debug and test on, so I used Paul's L4 work and
> my existing code to get things working on the Letux 400 as well. He also
> helped me to debug the LCD setup, making it possible to start looking at
> supporting the keyboard and other peripherals.

We have almost all peripherals working in Letux kernel so that can be some
inspiration hot to address the devices.

> One of the problems I encountered with the NanoNote was related to floating
> point emulation, so I hope that the larger screen on the Minibook makes it
> easier to print diagnostic information when things go wrong.

Indeed :)

BR and thanks for letting us know about your breakthrouh,
Nikolaus