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Groups > comp.os.linux.hardware > #1665
| From | Michael Black <et472@ncf.ca> |
|---|---|
| Newsgroups | comp.os.linux.hardware |
| Subject | Re: plip: StdOut > ttyS0 & ttyS1 > StdOut |
| Date | 2013-04-02 13:43 -0400 |
| Organization | National Capital Freenet, Ottawa, Ontario, Canada |
| Message-ID | <alpine.LNX.2.02.1304021335180.30100@darkstar.example.org> (permalink) |
| References | <kjeqe9$lpn$1@dont-email.me> |
On Tue, 2 Apr 2013, Avoid9Pdf@gmail.com wrote:
> The rPi credit-card-sized ARMbased computer which is
> already widely distributed, has no facilites to drive VGA.
>
Take note that comp.sys.raspberry-pi has been approved, the creation
message has probably gone out by now.
The Pi doesn't drive a VGA because it's intended to be used with current
tv sets, which definitely have hdmi. It's a modern day equivalent of the
Commodore 64, hook up to the tv set and play with it to learn programming.
That said, the HDMI port has the signals for DVI, you just need an adapter
that takes the subset of signals and puts it on a DVI connector. And most
of the LCD monitors I'm finding here waiting for the garbage trucks have
DVI (no sign of hdmi yet) connectors. So not having VGA doesnt' seem too
limiting.
> It has however a GPIO port [?IEE488].
> A driver for RS232 would be easy to drive the GPIO port.
> I think plip is even simpler, and there's linux info for it.
>
If it's doing conversion to serial in software, then that may slow things
down. THey need specific timing, which then locks out other multitasking,
unless things have changed from the days of Microware OS-9. That may or
may not be an issue.
> Would it be viable to:- >
> connect the rPi's port to a PC's RS232-port,
> rPi redirect StdOut to ttyS0,
> PC redirect ttyS0 to StdOut ?
>
You set up a console that is using the RS232 port rather than the built
in console. This is easy since long before Linux came along, Unix often
operated this way. Inittab is where this is done.
Michael
> This would allow one Terminal of the LinuxPC to show
> the rPi's output -- hopefully.
>
> I've got a crossover-cable RS232 to RS232.
> Could I test the concept on a PC which has 2 RS232 ports,
> with one port simulating the rPi?
>
> == TIA.
>
>
>
>
>
>
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plip: StdOut > ttyS0 & ttyS1 > StdOut Avoid9Pdf@gmail.com - 2013-04-02 14:36 +0000
Kernel console output on the serial port for headless rPi J G Miller <miller@yoyo.ORG> - 2013-04-02 15:12 +0000
Re: Kernel console output on the serial port for headless rPi Avoid9Pdf@gmail.com - 2013-04-03 05:35 +0000
Re: Kernel console output on the serial port for headless rPi J G Miller <miller@yoyo.ORG> - 2013-04-03 12:04 +0000
Re: Kernel console output on the serial port for headless rPi Unknown <dog@gmail.com> - 2013-04-03 17:56 +0000
Re: Kernel console output on the serial port for headless rPi Gordon Henderson <gordon+usenet@drogon.net> - 2013-04-03 18:11 +0000
Re: Kernel console output on the serial port for headless rPi J G Miller <miller@yoyo.ORG> - 2013-04-03 20:28 +0000
Re: Kernel console output on the serial port for headless rPi Michael Black <et472@ncf.ca> - 2013-04-03 23:27 -0400
Re: Kernel console output on the serial port for headless rPi Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2013-04-03 21:35 -0700
Re: Kernel console output on the serial port for headless rPi Jerry Peters <jerry@example.invalid> - 2013-04-04 20:15 +0000
Re: Kernel console output on the serial port for headless rPi Walter Bushell <proto@panix.com> - 2013-04-04 08:36 -0400
Re: Kernel console output on the serial port for headless rPi J G Miller <miller@yoyo.ORG> - 2013-04-04 13:59 +0000
Re: Kernel console output on the serial port for headless rPi Unknown <dog@gmail.com> - 2013-04-05 07:53 +0000
Re: Kernel console output on the serial port for headless rPi J G Miller <miller@yoyo.ORG> - 2013-04-05 15:50 +0000
Re: Kernel console output on the serial port for headless rPi Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2013-04-05 09:17 -0700
Re: Kernel console output on the serial port for headless rPi Unknown <dog@gmail.com> - 2013-04-05 18:38 +0000
Re: Kernel console output on the serial port for headless rPi The Natural Philosopher <tnp@invalid.invalid> - 2013-04-05 19:57 +0100
Re: Kernel console output on the serial port for headless rPi "Nick B." <nick@replytoisnot.invalid> - 2013-04-05 22:12 +0000
Re: Kernel console output on the serial port for headless rPi J G Miller <miller@yoyo.ORG> - 2013-04-05 21:24 +0000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Michael Black <et472@ncf.ca> - 2013-04-02 13:43 -0400
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Avoid9Pdf@gmail.com - 2013-04-03 05:35 +0000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2013-04-02 23:02 -0700
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Unknown <dog@gmail.com> - 2013-04-04 06:41 +0000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut J G Miller <miller@yoyo.ORG> - 2013-04-04 11:53 +0000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2013-04-04 08:20 -0700
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut JEDIDIAH <jedi@nomad.mishnet> - 2013-04-04 11:08 -0500
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2013-04-04 09:45 -0700
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Michael Black <et472@ncf.ca> - 2013-04-04 13:43 -0400
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut JEDIDIAH <jedi@nomad.mishnet> - 2013-04-04 14:43 -0500
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2013-04-04 13:43 -0700
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut JEDIDIAH <jedi@nomad.mishnet> - 2013-04-04 16:28 -0500
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2013-04-04 16:03 -0700
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Michael Black <et472@ncf.ca> - 2013-04-04 21:15 -0400
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Dave Higton <dave@davehigton.me.uk> - 2013-04-03 21:23 +0100
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Unknown <dog@gmail.com> - 2013-04-04 08:57 +0000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Theo Markettos <theom+news@chiark.greenend.org.uk> - 2013-04-04 22:34 +0100
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Michael Black <et472@ncf.ca> - 2013-04-04 21:17 -0400
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Hils <hils@saynotospam.net> - 2013-04-06 13:17 +0100
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Nick Odell <gurzhfvp.jbexfubc@ntlworld.com.invalid> - 2013-04-06 14:01 +0100
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Hils <hils@saynotospam.net> - 2013-04-06 15:42 +0100
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Gordon Henderson <gordon+usenet@drogon.net> - 2013-04-06 15:31 +0000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Michael Black <et472@ncf.ca> - 2013-04-06 11:51 -0400
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut The Natural Philosopher <tnp@invalid.invalid> - 2013-04-06 17:08 +0100
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Folderol <folderol@ukfsn.org> - 2013-04-06 17:27 +0100
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Aragorn <stryder@telenet.be.invalid> - 2013-04-06 18:28 +0200
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut The Natural Philosopher <tnp@invalid.invalid> - 2013-04-06 19:54 +0100
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Gordon Henderson <gordon+usenet@drogon.net> - 2013-04-06 17:07 +0000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Hils <hils@saynotospam.net> - 2013-04-06 18:54 +0100
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Chris Baird <abuse@brushtail.apana.org.au> - 2013-04-07 06:10 +1000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Folderol <folderol@ukfsn.org> - 2013-04-06 22:11 +0100
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Chris Baird <abuse@brushtail.apana.org.au> - 2013-04-07 18:01 +1000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Michael Black <et472@ncf.ca> - 2013-04-06 20:23 -0400
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Unknown <dog@gmail.com> - 2013-04-07 16:42 +0000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Unknown <dog@gmail.com> - 2013-04-05 06:18 +0000
Re: plip: StdOut > ttyS0 & ttyS1 > StdOut Paul <paul@pcserviceselectronics.co.uk> - 2013-04-05 13:38 +0100
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