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Re: [gpsd-users] Ublox EVK-M8T
From: |
John Klug |
Subject: |
Re: [gpsd-users] Ublox EVK-M8T |
Date: |
Tue, 19 Sep 2017 21:08:34 +0000 |
Before we start the commands, we are at 9600 baud/NMEA, which is the default on
our hardware.
It winds up in U-Blox mode at 115200. I have not tried to analyze why this
works.
All I know is I could not prevent it from switching back to 9600 baud (the
default) without using the two steps, plus the stty to set the baud on the
line. Maybe the -T2 prevents NMEA from being set?
We always do this before starting gpsd, and gpsd is always in U-Blox mode after
this.
The gpsd options we use are -n -D 1
git dot multitech dot
net/cgi-bin/cgit.cgi/meta-mlinux.git/tree/recipes-navigation/gpsd/gpsd/gpsd
git dot multitech dot
net/cgi-bin/cgit.cgi/meta-mlinux.git/tree/recipes-navigation/gpsd/gpsd/gpsd-default
John Klug
Senior Software Engineer
From: Denny Page address@hidden
Sent: Tuesday, September 19, 2017 3:34 PM
To: John Klug
Cc: address@hidden; address@hidden
Subject: Re: [gpsd-users] Ublox EVK-M8T
> On Sep 19, 2017, at 07:46, John Klug <address@hidden> wrote:
>
> gpsctl -t 'u-blox' -s $GPS_BAUD -b -f $GPS_LINE
> gpsctl -T 2 -f $GPS_LINE
> stty -F $GPS_LINE $GPS_BAUD
John,
I’m confused regarding the intent of the second gpsctl…
If the baud rate on the port (and unit) is originally at a rate of 115200, then
the second gpsctl will succeed and reset the unit to NMEA mode.
If the baud rate on the port (and unit) is originally at a rate of other than
115200, say 9600, then the second gpsctl will sends and receive some garbage
bits, and then time out. But what is the actual effect on the port or the unit?
Thanks,
Denny
- Re: [gpsd-users] Ublox EVK-M8T, (continued)
- Re: [gpsd-users] Ublox EVK-M8T, Gary E. Miller, 2017/09/01
- Re: [gpsd-users] Ublox EVK-M8T, George S., 2017/09/01
- Re: [gpsd-users] Ublox EVK-M8T, Denny Page, 2017/09/04
- Re: [gpsd-users] Ublox EVK-M8T, Denny Page, 2017/09/18
- Re: [gpsd-users] Ublox EVK-M8T, Eric S. Raymond, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, John Klug, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, John Klug, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, Eric S. Raymond, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, Denny Page, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, Denny Page, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T,
John Klug <=
- Re: [gpsd-users] Ublox EVK-M8T, Eric S. Raymond, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, Denny Page, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, Gary E. Miller, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, Denny Page, 2017/09/21
- Re: [gpsd-users] Ublox EVK-M8T, Eric S. Raymond, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, Denny Page, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, Gary E. Miller, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, Denny Page, 2017/09/19
- Re: [gpsd-users] Ublox EVK-M8T, Gary E. Miller, 2017/09/20
- Re: [gpsd-users] Ublox EVK-M8T, Denny Page, 2017/09/21