The Jupiter expects DTR to be always on. It does use CTS and RTS in a full
hardware handshake mode. That is when you send something to the Jupiter,
you must first bring up RTS and then wait for the Jupiter to bring up CTS
before sending. The serial port should be set at 57600 baud, 8 bit, no
parity, 1 stop bit. The serial cable should just be a 9 pin straight though
Carl Moreschi N4PY
----- Original Message -----
From: "Olivier Le Cam" <email@example.com>
Sent: Monday, June 06, 2005 1:55 PM
Subject: [TenTec] Software control of the Jupiter radio [help needed]
> Hi forum,
> I author of a contest software and I'm trying to add support of the
> Tentec Jupiter, but I have problems to get the radio communicating with
> my software.
> I must confess that I'm doing this implementation without the radio,
> which is, as you can imagine, very frustrating.
> I'm helped by W0RSR who is a Jupiter owner. He reported to me that:
> - his radio does work with different softwares (like Ham Radio Deluxe)
> - the radio does receive and interpret band change from my software
> - the software never receives any information back from the radio
> Here is a Debug file sample:
> 2005/06/04-22:52:09: Initializing COM port #2: 57600 3-0-0
> 2005/06/04-22:52:13: -> 3f 41 0d
> 2005/06/04-22:52:14: -> 3f 42 0d
> 2005/06/04-22:52:14: -> 3f 4d 0d
> 2005/06/04-22:52:15: -> 3f 41 0d
> As you can see, the software sends "?A" and "?B" commands to the radio,
> but apparently the radio never replies.
> W0RSR told me that his cable is a store bought straight through 9 pin
> serial cable which is all the Jupiter requires.
> He tried to set DTR and RTS to "always off", "always on", and
> "handshake" in the software. "Handshake" and "always off" gets the radio
> controlled by the software.
> I am thus interested by your ideas. Any help will be greatly welcome!
> Thanks very much in anticipation!
> Olivier / f5mzn
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