[time-nuts] Prologix GPIB/USB converter help...

John Ackermann N8UR jra at febo.com
Sun Apr 15 14:11:42 EDT 2007


I think I have it licked now.  Getting the right terminations was step
one, step two was getting a little sleep() between write and read
commands, and step three was cleaning up my exit code (to stop a weird
"can't close non-existent object attribute" error at the end.

I still don't have minicom working, but that is almost certainly because
the "Add Linefeed" option applies only to incoming data, and there's no
way to tell it that for transmissions.

Thanks all for the hints.

John
----
John Miles said the following on 04/15/2007 02:07 PM:
> I was going to say, yes, you do need \r\n at the end of each outgoing
> string.  I'd forgotten about that but was reminded of it just last night,
> working on a configuration app for the new DIP-switchless boards.
> 
> It should be pretty reliable with \r\n termination.
> 
> -- john, KE5FX
> 
>> -----Original Message-----
>> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]On
>> Behalf Of John Ackermann N8UR
>> Sent: Sunday, April 15, 2007 10:45 AM
>> To: Christopher Hoover
>> Cc: time-nuts at febo.com
>> Subject: Re: [time-nuts] Prologix GPIB/USB converter help...
>>
>>
>> Well, I got my perl code, using Device::SerialPort, to work by *not*
>> selecting raw mode, but explicitly adding CRLF to the command string by
>> using chr() to append those characters.  I have no idea why...
>>
>> I'm also getting a weird error from the Device::SerialPort deconstructor
>> on close, but that's workable.
>>
>> John
>>
> 
> 
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