Thomas J McGrath III
3mcgrath at adelphia.net
Tue Nov 25 07:34:24 CST 2003
OK you guys,
I think you guys forgot that I am way new to REV, so syntax is tripping
me up big time. I have been able to communicate TO the device but not
get any desired result from the device.
Do I need to read from device in order to get the result or should the
result be a part of the write to process being returned ? I want to
learn more but this is way beginner stuff concerning the proper syntax
and expected results.
I just need to get to first base and then I can start playing around to
learn the ins and outs of the rest.
On Nov 25, 2003, at 12:45 AM, Dar Scott wrote:
> On Monday, November 24, 2003, at 06:22 PM, Sarah wrote:
>>>> I have found that on OS X the write needs to end in a LF with the
>>>> serial drivers I use. I think this is a Revolution bug.
>>> Hmmm, I'm not sure that it's a bug in Revolution. Using the Keyspan
>>> drivers and my device, I get strange behavior if I add an LF after
>>> the data I send. Things are fine if I send individual characters.
>>> I think it was Sarah who said that you needed to use an LF with the
>>> Keyspan drivers in another case, so it might be a device specific
>> Not guilty in this case :-)
>> I think Jason is right - it is device specific. I have tested a
>> couple of different devices and one needs ASCII 13 while one needs
>> CRLF. I haven't actually found one that needs LF on it's own. Dar
>> reported problems using anything other than LF but that has not been
>> my experience, at least not since Rev 2.1 when OS X serial actually
>> started to work.
> On my mac, on OS X on recent versions through 10.2.8 and Revolution
> with serial on OS X through 2.1.1, a LF is required for any data to go
> out on any device I have tested. It might be device specific, but it
> includes two USB adaptors and the internal modem, if so. I suspect
> that Revolution is not setting termios parameters completely. Maybe
> you two have used other software to access the devices and that
> software initialized some parameters that are remembered. I have
> considered using shell to try to fiddle with parameters before the
> I think serial I/O bug reports are at a low priority.
> Dar Scott
> use-revolution mailing list
> use-revolution at lists.runrev.com
Macintosh PowerBook G-4 OSX 10.3.1, OS 9.2.2, 1.25 GHz, 512MB RAM, Rev
Advanced Media Group
Thomas J McGrath III ð 2003 ð 3mcgrath at adelphia.net
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