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07-13-2010, 06:40 AM
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#1
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LQ Newbie
Registered: Jul 2010
Location: Mumbai, India
Distribution: Ubuntu 10.04, Ubuntu Netbook Remix 10.04
Posts: 4
Rep:
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GPS Receiver data not being displayed in minicom
Hi
I have a GPS receiver(ProGin SR-91), that communicates via the serial port(RS232) with the computer. I have Ubuntu Netbook Remix v10 installed, with minicom on it.
According to the device specifications, I have set the baud rate to 4800, with no parity, and 1 stop bit (8N1), and disabled software and hardware flow control in minicom. The GPS device supports NMEA 0183 protocol. After this, I started capture to 'minicom.cap'. But nothing is being displayed in the minicom terminal.
PS: The GPS receiver is indoors right now, away from direct line of sight with the sky, but still, should I get some data from it?
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07-13-2010, 07:12 AM
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#2
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Moderator
Registered: Aug 2002
Posts: 10,707
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I am not familiar with this device but typically if you do not see ASCII text streaming then something is not configured correctly.
Is this a known working device? Does it come with all the cabling pre-assembled?
If not...
Is it wired correctly? TX -> computer RX
Are you sure the device's baud rate is 4800?
Is minicom configured for the correct serial port device?
Is their some configuration pin/setting to output NEMA instead of SiRF?
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07-13-2010, 07:53 AM
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#3
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Member
Registered: Apr 2008
Location: Toulon (France)
Distribution: FEDORA CORE
Posts: 492
Rep:
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One more question, is your user owned by the dial group (or uucp or serial, see the /dev/ttyS0 group)?
You can try "gpsd" (quite sure it is in standards ubuntu repos), this daemon can auto-sense the serial port until it is detecting a protocol / baudrate it can handle.
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07-14-2010, 03:48 AM
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#4
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LQ Newbie
Registered: Jul 2010
Location: Mumbai, India
Distribution: Ubuntu 10.04, Ubuntu Netbook Remix 10.04
Posts: 4
Original Poster
Rep:
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Solved
Thank you michaelk and jf.argentino
I got the data in minicom after setting it up. There was a fault in the serial cable(three different cables turned out to be faulty).
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