[Oberon] What boot LEDs mean, point me to some docs

Joerg joerg.straube at iaeth.ch
Sat Oct 24 16:15:31 CEST 2020

leds in boot loader
80H cold boot
81H load Oberon from serial
82H load Oberon from CF
84H transfer from boot loader to Oberon

leds in Oberon
21H garbage collector mark phase
23H garbage collector restore files
27H garbage collector scan phase
20H garbage collector ends
C0H+w  Trap w


> Am 24.10.2020 um 15:50 schrieb D EMARD <vordah at gmail.com>:
> HI
> A collegue is rying to make cleaner rework of SDRAM and cache for
> oberon at ulx3s board
> https://gitlab.com/pnru/ulx3s-misc/-/blob/master/oberonstation/ob_video.tgz
> Old code which works has this boot LED sequence (or bits):
> D7+D1, D7+D2, D5 ... then video, mouse and kbd work
> New code under development boots
> D7+D1, D7+2 and stays there
> Need some description or pointing to docs describing
> what LED combinations mean
> --
> Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related systems
> https://lists.inf.ethz.ch/mailman/listinfo/oberon

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