Messages in this thread | | | Date | Wed, 13 Jan 2021 21:56:17 +0900 | From | William Breathitt Gray <> | Subject | Re: Old platforms: bring out your dead |
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On Wed, Jan 13, 2021 at 09:30:28PM +0900, William Breathitt Gray wrote: > On Wed, Jan 13, 2021 at 01:02:20PM +0100, Linus Walleij wrote: > > On Wed, Jan 13, 2021 at 11:27 AM Andy Shevchenko > > <andy.shevchenko@gmail.com> wrote: > > > On Mon, Jan 11, 2021 at 11:55 AM David Laight <David.Laight@aculab.com> wrote: > > > > > > basically 486 but have a few extra instructions - probably just cpuid > > > > and (IIRC) rdtsc. > > > > Designed for low power embedded use they won't ever have been suitable > > > > for a desktop - but are probably fast enough for some uses. > > > > I'm not sure how much keeping 486 support actually costs, 386 was a > > > > PITA - but the 486 fixed most of those issues. > > > > > > Right, we have "last of mohicans" (to date) Intel Quark family of CPUs > > > (486 core + few i586 features). > > > This is for the embedded world and probably not for powerful use. > > > > What is the status of PC/104? > > https://en.wikipedia.org/wiki/PC/104 > > > > I have three GPIO drivers for PC/104 machines and these are for > > embedded industrial usecases. I am curious about what CPUs these > > beasts run on in practice? Are they getting upgraded? > > > > Paging William, I think he work on these daily. > > > > Yours, > > Linus Walleij > > I don't really see pure PC/104 systems around that much anymore, but > there are still plenty of PC/104-Plus and PCI-104 setups in production. > The PC/104 form factor is popular because users can stack PC/104 > compatible modules easily together to build custom solutions; see for > example the diagram on this page: > https://www.advantech.com/embedded-boards-design-in-services/embedded-single-board-computers/pc104-and-pc104-plus > > As far as the CPU is concerned, these systems are typically for > industrial applications and run CPUs geared for low-power consumption -- > you're looking at processor series such as the Intel Bay trail > (https://www.winsystems.com/product/epx-c414/), DMP Vortex86DX > (http://www.diamondsystems.com/products/helios), and AMD G-series > (https://www.advantech.com/products/1-2jkltu/pcm-3356/mod_0706f4d5-2e44-473a-a7b7-53bd1a7bd1a0). > > TLDR; PC/104 is certainly a niche market focused on industrial > consumers, but the form factor and devices are still popular and > upgraded reguarly. > > William Breathitt Gray
Oops, I misread what you were asking. If you mean, are the systems that run these PC/104 stackable devices running older processor series, then yes that's typically the case.
It seems like newer systems have migrated to the PCIe/104 form factor, which although having the same dimensions as the PC/104 form factor lacks compatibility with PC/104 devices; for example: https://www.rtd.com/i7/default.htm
I suspect the general trend in the market is moving towards these PCIe modules because PC/104 ISA communication just lacks the bandwidth necessary for many applications.
William Breathitt Gray [unhandled content-type:application/pgp-signature] | |