Re: Onyx RE2 to Onyx2 iR

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george williams (gcw++at++best.com)
Mon, 11 Aug 1997 16:34:00 -0700

At 12:59 PM 8/4/97 -0400, you wrote:
>
>It goes even deaper that that...
>
>First, the new SGI machines have the standard PC rs-232 pinouts. This
>is different from the Onyx and older machines.
>
>Second, with the help of ascension, the Iowa State guys got their
>ascenion tracker up and running with the following relevations:
> 1) calling a serial port by the name ttyd# does not function
> the same way on Onyx vs Onyx.
> 2) Use ttym# instead
> 3) Use a straight through cable (not NULL modem)
> 4) Make sure that only pins 2, 3, and 5 are connected
>
>My guess (hope) is that similar things will hold true for the Polhemus
>systems as well.

Indeed, the only changes that I needed to consider when recompiling a
Polhemus Fastrak driver for the new SGIS were 1) the changes to the termios
structure ( setting the 'ospeed' and 'ispeed' members) and 2) the PC-compat
RS232 pinout.

-George W.

>
>-Jim
>
>Rob Page writes:
> |
> | On Thu, 24 Jul 1997, Kaylor, Brett wrote:
> |
> | > We are in the process of porting our Performer (OpenGL based)
> | > application from an
> | > Onyx RE2 (IRIX 6.2) with 2 pipes to an Onyx 2 iR (IRIX 6.4) and have a
> | > few questions.
> | > ...
> | > - We also have 2 Virtual Technolgy gloves and a Fastrak. We have been
> | > told that the serial interface has changed between the two machines.
Has
> | > anyone experienced any problems moving serial input devices between
the two
> | > different machines?
> | >
> | We had a problem moving our serial driver code from an Indigo2 with
> | Irix 6.2 to an Octane with 6.4. The termio and termios structures have
> | changed between the two Irixes. See the man page for termio on the 6.4
> | machine. "Existing binaries automatically use the old interfaces." If
> | you want to compile and run under 6.4 you can either make a minor code
> | change or define a compile time flag.
> |
> | ttfn, Rob Page Kaman Sciences ++at++ NRL Code 5513
> | (202) 404-7280 -> B16 Room 228 (202) 767-5613 -> HCI Lab
> | page++at++itd.nrl.navy.mil
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