News for hackers. Stuff that matters.

A comment on The second operating system hiding in every mobile phone. Parent comment

Re:The second operating system hiding in every mobile phone by gngeal on Wednesday November 13, 2013 @07:50AM (#6724846)
In practice such a hard realtime guarantee can only be met by a devices like an FPGA.

There have always been fully deterministic CPUs around for that purpose. The simpler the system, the better; just hook a Forth chip to a memory without caches and you're set.

[ Parent | on HN ]
Re:The second operating system hiding in every mobile phone by doelie_ on Wednesday November 13, 2013 @10:40AM (#6725858)
Do you have any experience with Forth chips? I've been looking for an excuse to play with the GreenArray devices.
[ Parent | on HN ]
Re:The second operating system hiding in every mobile phone by gngeal on Wednesday November 13, 2013 @10:56AM (#6725985)
No, but I don't see any flaw in that design. Indeed, it seems like the case of Hoare's "obviously no deficiencies" in a system design.

I believe that the GreenArrays people, setting aside the $450 dev board, also had some notes on making cheap breadboards with their chips or something like that. I don't have a link handy, though. ;/

[ Parent | on HN ]
Re:The second operating system hiding in every mobile phone by ballard on Wednesday November 13, 2013 @03:34PM (#6728266)
Could try calling their sales folks and see if a rep will just sample it.
[ Parent | on HN ]