GPS stopped working, can't figure it out... what else?
James Hiebert
james at hiebert.name
Mon Oct 4 07:02:59 CEST 2010
Yeah, I should have specified that I have have seen this as advice numerous
other times on the list and it "works" fine (i.e. I see no errors, but I
don't necessarily know what I'm looking for). What exactly is this supposed
to tell me? Timo, you had said previously (3-MAY-2010) that if this works,
"we can rule out kernel bugs." Where's the next place to check?
First few lines of output (let me know if you need more):
00000000 00 24 47 50 54 58 54 2c 30 31 2c 30 31 2c 30 32 |.$GPTXT,01,01,02|
00000010 2c 75 2d 62 6c 6f 78 20 61 67 20 2d 20 77 77 77 |,u-blox ag - www|
00000020 2e 75 2d 62 6c 6f 78 2e 63 6f 6d 2a 35 30 0d 0a |.u-blox.com*50..|
00000030 24 47 50 54 58 54 2c 30 31 2c 30 31 2c 30 32 2c |$GPTXT,01,01,02,|
00000040 24 47 50 52 4d 43 2c 2c 56 2c 2c 2c 2c 2c 2c 2c |$GPRMC,,V,,,,,,,|
00000050 2c 2c 2c 4e 2a 35 33 0d 0a 24 47 50 56 54 47 2c |,,,N*53..$GPVTG,|
00000060 2c 2c 2c 2c 2c 2c 2c 2c 4e 2a 33 30 0d 0a 24 47 |,,,,,,,,N*30..$G|
00000070 50 47 47 41 2c 2c 2c 2c 2c 2c 30 2c 30 30 2c 39 |PGGA,,,,,,0,00,9|
00000080 39 2e 39 39 2c 2c 2c 2c 2c 2c 2a 34 38 0d 0a 24 |9.99,,,,,,*48..$|
00000090 47 50 47 53 41 2c 41 2c 31 2c 2c 2c 2c 2c 2c 2c |GPGSA,A,1,,,,,,,|
000000a0 2c 2c 2c 2c 2c 2c 39 39 2e 39 39 2c 39 39 2e 39 |,,,,,,99.99,99.9|
000000b0 39 2c 39 39 2e 39 39 2a 33 30 0d 0a 24 47 50 47 |9,99.99*30..$GPG|
000000c0 53 56 2c 31 2c 31 2c 30 30 2a 37 39 0d 0a 24 47 |SV,1,1,00*79..$G|
000000d0 50 47 4c 4c 2c 2c 2c 2c 2c 2c 56 2c 4e 2a 36 34 |PGLL,,,,,,V,N*64|
000000e0 0d 0a 24 47 50 5a 44 41 2c 2c 2c 2c 2c 30 30 2c |..$GPZDA,,,,,00,|
000000f0 30 30 2a 34 38 0d 0a 24 47 50 52 4d 43 2c 2c 56 |00*48..$GPRMC,,V|
00000100 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 4e 2a 35 33 0d 0a |,,,,,,,,,,N*53..|
00000110 24 47 50 56 54 47 2c 2c 2c 2c 2c 2c 2c 2c 2c 4e |$GPVTG,,,,,,,,,N|
00000120 2a 33 30 0d 0a 24 47 50 47 47 41 2c 2c 2c 2c 2c |*30..$GPGGA,,,,,|
00000130 2c 30 2c 30 30 2c 39 39 2e 39 39 2c 2c 2c 2c 2c |,0,00,99.99,,,,,|
00000140 2c 2a 34 38 0d 0a 24 47 50 47 53 41 2c 41 2c 31 |,*48..$GPGSA,A,1|
00000150 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 2c 39 39 2e |,,,,,,,,,,,,,99.|
00000160 39 39 2c 39 39 2e 39 39 2c 39 39 2e 39 39 2a 33 |99,99.99,99.99*3|
00000170 30 0d 0a 24 47 50 47 53 56 2c 31 2c 31 2c 30 30 |0..$GPGSV,1,1,00|
00000180 2a 37 39 0d 0a 24 47 50 47 4c 4c 2c 2c 2c 2c 2c |*79..$GPGLL,,,,,|
~James
On Fri, Oct 01, 2010 at 12:00:21PM +0300, Timo Juhani Lindfors wrote:
> James Hiebert <james at hiebert.name> writes:
> > Does anyone have any advice?
>
> 1) kill all processes that access /dev/gps
> 2) om gps power 0
> 3) stty -F /dev/gps raw
> 4) om gps power 1
> 5) hexdump -C /dev/gps
>
> (If you don't have /dev/gps symlink it is probably called ttySAC1)
>
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