Subject:
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Re: problems with nqc under linux
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Newsgroups:
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lugnet.robotics.rcx.nqc
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Date:
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Sat, 18 Aug 2001 00:35:08 GMT
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Viewed:
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2978 times
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It looks like the serial port just isn't getting the right settings
(baud, parity, etc). I'm not sure how to go about diagnosing/fixing
it...NQC makes some rather straightforward POSIX calls to configure the
serial port. If it is not working, then it generally comes down to a
kernel/driver issue.
Do you have some sort of terminal program available on both computers?
If so, first start with 9600 baud, 8 data, 1 stop, no parity. Make sure
you can send data back and forth. Then switch to 2400 baud and try
again. Then turn on odd parity.
Dave
In article <3B7CF025.BA58150B@hs-harz.de>, Michael Wisse
<mwisse@hs-harz.de> wrote:
> Hallo Dave!
>
> Thanks for your respond.
> I've done your suggestion. I connected two linux computers with a
> nullmodem cable.
> On the other computer nqc is working correctly, but it has installed an
> older version of nqc 2.0.2 (on my notebook runs nqc 2.2., I hope, this
> is no problem).
>
> This is the output from my notebook (where nqc does not work correctly).
> Here I started nqc fist on the notebook, then on the other computer:
>
> spock:/var/log # nqc -v -raw 10
> Tx: 55 ff 00 10 ef 10 ef
> Rx: 78 0f 78 ff fc 00 00 00 f8 f8 78 00 c0 00 f8 f8 f8 78 0f 78 ff fc 00
> 00 00 f8 f8 78 00 c0 00 f8 f8 f8
> Tx: 55 ff 00 10 ef 10 ef
> Rx:
> Problem talking to IR device
>
> Here I started nqc fist on the other computer, then on my notebook:
>
> spock:/var/log # nqc -v -raw 10
> Tx: 55 ff 00 10 ef 10 ef
> Rx: 78 0f 78 ff fc 00 00 00 f8 f8 78 00 c0 00 f8 f8 f8
> Tx: 55 ff 00 10 ef 10 ef
> Rx:
> Problem talking to IR device
>
> The other computer mostly did not receive anything from the notebook.
> Sometimes on the first left rx field appeared a 72, nothing else.
>
> I compared the setserial output for ttyS0 on both computers. Setserial
> on the notebook pcmcia card recognized a UART 16950/954, setserial on
> the other computer a 16550A. This was the only difference.
>
> Regards.
>
> Michael
--
reply to: dbaum at enteract dot com
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Message is in Reply To:
 | | Re: problems with nqc under linux
|
| Hallo Dave! Thanks for your respond. I've done your suggestion. I connected two linux computers with a nullmodem cable. On the other computer nqc is working correctly, but it has installed an older version of nqc 2.0.2 (on my notebook runs nqc 2.2., (...) (23 years ago, 17-Aug-01, to lugnet.robotics.rcx.nqc)
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