[coreboot] v3 parallel port console?

Joseph Smith joe at settoplinux.org
Tue Sep 16 02:14:15 CEST 2008

On Tue, 16 Sep 2008 01:28:40 +0200, Carl-Daniel Hailfinger
<c-d.hailfinger.devel.2006 at gmx.net> wrote:
> Hi,
> since the market share of machines with a serial port is shrinking
> rapidly and USB debug cables are not affordable at all for hobbyists, we
> may need to support console on parallel port.
> I do realize that not all machines lacking a serial port will have a
> parallel port, but as long as it improves our console coverage, I'm
> inclined to suggest parallel console support as a viable option.
> Parallel port console support has the advantage of being faster than
> serial port console, at the same time keeping the cost for a cable in
> the single digit dollar range.
> What do you think?
> Do we have any other devices on board which don't require interrupts to
> run? Floppy connector? POST cards? PC speaker (with 1-wire protocol)? Is
> it possible to use any of them with cheap home-built adaptors?
I like this idea. I would also be nice to be able to use a parallel port
post (say that five times fast) card for embedded boards without a PCI
slot. The one I have does both, PCI and/or Parallel.

Joseph Smith

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