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Stimulus driven interrupts?

Posted: Wed May 05, 2021 9:46 pm
by jmaggio14
In this Oberon-1 paper ( from 1996, Wirth discusses a method of "real-time tasks". (Page 10). In which I believe interrupt handlers installed with Kernel.Instal(Handler, N) are triggered when a device or buffer is updated?

I see that Kernel.Install still exists in the RISC5 source. Can this method still be used for "real-time tasks" in which a procedure is run when an external stimulus changes? So far all the interrupt examples I've seen make use of interrupts triggered periodically by the millisecond timer, but I'm a little out of my depth here so it's very possible I missed something

My end goal is to trigger an interrupt (from firmware or otherwise) without having to wait for the millisecond timer

Re: Stimulus driven interrupts?

Posted: Thu May 06, 2021 12:10 am
by cfbsoftware
Oberon's interrupt capabilities are part of Project Oberon and the RISC5 design - they are not peculiar to Astrobe. Unfortunately we have not had any experience in what you are attempting to do. However, I recommend that you check out this website produced by gray, another Astrobe user and frequent contributor to this forum:

Alternatively, try asking your question on the ETH Oberon Mailing list.

Re: Stimulus driven interrupts?

Posted: Fri May 14, 2021 2:12 am
by cfbsoftware
For anybody who is interested this discussion was continued on the ETH Oberon Mailing list: