* Seeking RS232/422 Implementations/Help
@ 1995-03-10 19:36 Hartsough Michael J.
1995-03-13 12:59 ` Mike Meier
1995-03-14 2:17 ` William Loftus
0 siblings, 2 replies; 3+ messages in thread
From: Hartsough Michael J. @ 1995-03-10 19:36 UTC (permalink / raw)
I need to implement interfaces to RS232, RS422, and 1553B buses (in Ada).
I have a lot of Ada experience, but no "device driver" (is that what they're
called?) experience.
I surfed the web all morning in an unsuccessful attempt to locate an existing
Ada implementation that I could download.
Does anyone out there in Ada-land know if such a beast exists?
I'll settle for decent references (anything really, like, are there any
IEEE, ANSI, or ISO standards describing the RS protocols?).
Thanks,
Michael
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Seeking RS232/422 Implementations/Help
1995-03-10 19:36 Seeking RS232/422 Implementations/Help Hartsough Michael J.
@ 1995-03-13 12:59 ` Mike Meier
1995-03-14 2:17 ` William Loftus
1 sibling, 0 replies; 3+ messages in thread
From: Mike Meier @ 1995-03-13 12:59 UTC (permalink / raw)
Hartsough Michael J. (hartsoug@ss22.dsd.northrop.com) wrote:
: I need to implement interfaces to RS232, RS422, and 1553B buses (in Ada).
Device drivers are heavily dependent on:
- The hardware device being used (register structures and automated
capabilities vary greatly)
- The hardware environment (influences decision on polled vs.
interrupt driven)
- The protocol (little variation for RS232/422, but varies greatly
for 1553B (e.g., various schemes for single BC, multiple BCs)
- Other nuances
One set of software cannot be reused without knowing many of these
details. Even with a simple RS-232 interface I've had to rewrite
completely when going from a Motorola to an Intel device.
Perhaps you can specify more so that we can think about helping...
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Seeking RS232/422 Implementations/Help
1995-03-10 19:36 Seeking RS232/422 Implementations/Help Hartsough Michael J.
1995-03-13 12:59 ` Mike Meier
@ 1995-03-14 2:17 ` William Loftus
1 sibling, 0 replies; 3+ messages in thread
From: William Loftus @ 1995-03-14 2:17 UTC (permalink / raw)
hartsoug@ss22.dsd.northrop.com (Hartsough Michael J.) wrote:
>
> I need to implement interfaces to RS232, RS422, and 1553B buses (in Ada).
>
> I have a lot of Ada experience, but no "device driver" (is that what they're
> called?) experience.
>
> I surfed the web all morning in an unsuccessful attempt to locate an existing
> Ada implementation that I could download.
>
> Does anyone out there in Ada-land know if such a beast exists?
>
> I'll settle for decent references (anything really, like, are there any
> IEEE, ANSI, or ISO standards describing the RS protocols?).
>
> Thanks,
> Michael
You can find the 1553 on sw-eng.falls-church.va.us in the atip
directories.
^ permalink raw reply [flat|nested] 3+ messages in thread
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1995-03-10 19:36 Seeking RS232/422 Implementations/Help Hartsough Michael J.
1995-03-13 12:59 ` Mike Meier
1995-03-14 2:17 ` William Loftus
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