As I mentioned in the original e-mail: this port was known to work
properly with other applications in the past. I will double-check
when I get home to make sure that is still the case.
I am not using a null modem cable. If I were, then I'd get no data
from the rotator controller rather than a response that appears to be
sent at a different baud rate. Everytime I power cycle the rotator
controller, it outputs data that I can see in hyperterm.
Unfortunately, the data is just a few unprintable characters; the kind
of thing I usually expect to see when the port configurations are not
correct.
On Mon, Sep 27, 2010 at 12:05 PM, Guy Molinari <guy_molinari@hotmail.com> wrote:
> Have you verified that the port on the computer works when connected to
> another device?
>
> Also, another problem is proper cabling. Are you using a "null modem"
> cable (pins 2 and 3 reversed at each end)? Or is it a straight through
> cable (not reversed).
>
>
>> Date: Mon, 27 Sep 2010 12:02:41 -0700
>> From: n6kj.kelly@gmail.com
>> To: guy_molinari@hotmail.com
>> CC: towertalk@contesting.com
>> Subject: Re: [TowerTalk] RS-232 control of M2 Rotator
>>
>> Yes, I'm aware of that. I have hyperterm set up for 8-N-1. I've
>> tried that combination with nearly every baud rate possible, but still
>> nothing.
>>
>> On Mon, Sep 27, 2010 at 11:49 AM, Guy Molinari <guy_molinari@hotmail.com>
>> wrote:
>> >
>> > There are 3 parameters for RS-232 communication.
>> >
>> > 1) Baud rate
>> > 2) Parity bit (0 or 1)
>> > 3) Number of stop bits (0, 1 or 2).
>> >
>> > I believe the M2 rotator is expecting none for the parity bits (0) and 1
>> > stop bit.
>> >
>> > 73,
>> > Guy, N7ZG
>> >
>> >> Date: Mon, 27 Sep 2010 11:31:04 -0700
>> >> From: n6kj.kelly@gmail.com
>> >> To: towertalk@contesting.com
>> >> Subject: [TowerTalk] RS-232 control of M2 Rotator
>> >>
>> >> I'm trying to remote my home station. The last piece of the puzzle
>> >> for (non-QRO) operation is the rotator. I've tried several things to
>> >> get RS-232 control of my M-Squared rotator to work, but so far no
>> >> luck. The rotator control box seems to be trying to communicate. I'm
>> >> using the standard M-Squared control box. I see data coming back from
>> >> the rotator, but it appears to be the wrong baud rate. I've tried
>> >> every baud rate (including the one that the manual claims should work)
>> >> so far with no luck. I've tried controlling it with Hyperterm and
>> >> with DX4WIN. Neither works. This serial port works fine for other
>> >> purposes. This is a real RS-232 port; not a USB-to-serial converter.
>> >> Anyone got any tips before I call M-Squared?
>> >> _______________________________________________
>> >>
>> >>
>> >>
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>> >> TowerTalk@contesting.com
>> >> http://lists.contesting.com/mailman/listinfo/towertalk
>> >
>> > _______________________________________________
>> >
>> >
>> >
>> > _______________________________________________
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>> > TowerTalk@contesting.com
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>> >
>> _______________________________________________
>>
>>
>>
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>
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