Forums > Windsurfing   Gps and Speed talk

First results with the Canmore GPS GP-102+

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Created by boardsurfr > 9 months ago, 16 Jul 2014
seanhogan
QLD, 3424 posts
23 Dec 2015 6:43AM
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one of my team members has got the same issue (memory full)

so when you format the unit, do you have to re- install the software in it ?

Tony Polony
NSW, 339 posts
23 Dec 2015 9:43AM
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No the drivers remain installed without any issues.

Has he tried the "factory restore" under settings yet? My Linux guy said that 'should' remove the files... I'm however a little dubious that it removes all the hidden files.

seanhogan
QLD, 3424 posts
23 Dec 2015 9:42AM
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Thanks Tony, factory restore doesn't delete the hidden files (I suppose cause the new files are still 0 ko)

I tried to format under on a canmore I don't use (under win 10) and it emptied it completely, noting left in it

Tony Polony
NSW, 339 posts
23 Dec 2015 10:53AM
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....the plot thickens! Don't you just love technology!!

seanhogan
QLD, 3424 posts
23 Dec 2015 10:01AM
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I have to say it was a yellow one

Windzup
WA, 21 posts
23 Dec 2015 1:16PM
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I've had the same issue with my Canmore(Blue One)
I managed to overcome the problem by -
On Mac
Copy the two files "GP-102 & No Name" to the desktop
Using Disk utility select the Canmore flash drive and erase all the data
Once the drive has been formatted re-install the two files it should show the capacity is back to 3.1 MB
I have taken it out for a number of times since and all appears normal

Now if only i can get it to crack 40knts !






AusMoz
QLD, 1497 posts
1 Jan 2016 7:00PM
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2nd use of the canmore after a short session - won't even turn on! Just %^$^ great!

AusMoz
QLD, 1497 posts
2 Jan 2016 6:43AM
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works now - on off button isn't real great - even the importer said it was crap.

Surfinfreak
QLD, 293 posts
3 Jan 2016 11:19AM
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Select to expand quote
AusMoz said...
works now - on off button isn't real great - even the importer said it was crap.


Hopefully it keeps working for you

sailquik
VIC, 6165 posts
28 Jan 2016 9:18PM
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It has come to our attention that some (or all?) Canmore devices are occasionally randomly missing data points during runs. Usually from what we have seen it is missing one second (making a 2 second data point) but sometimes it misses 2 seconds. There may be instances where more are missed.

This is a big problem because you can't really span missed points in Doppler data because of the potential aliasing errors it can introduce. (Not such an issue with Track Points, but they have accuracy issues of a different kind)

At the moment, KA72 speed checker incorrectly allows these points to be spanned. If you post to GPS-Speedsurfing or use GPS-Results you will notice that it invalidates any run with these missed points and they don't show up in the results.

I would be interested to hear from Canmore users if they have noticed this with their device. It may only happen if the device is worn so it has poor reception, or it may only affect some individual devices, but we need more info on this.

decrepit
WA, 12761 posts
29 Jan 2016 6:45PM
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I spoke to yoyo today, he thinks it's a write speed problem, something to do with the memory being organised in blocks, when one block is full another has to be started, this too long for the next second to get written to memory.

Yoyo also says, that if he converts the canmore file to .sbp with realspeed, GPSResults then recognises a result with a gap in it.

AUS 808
WA, 501 posts
30 Jan 2016 10:35AM
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Select to expand quote
sailquik said..


I would be interested to hear from Canmore users if they have noticed this with their device. It may only happen if the device is worn so it has poor reception, or it may only affect some individual devices, but we need more info on this.


Andrew,
We have noticed lately some spikes or longer points in the tracks, up to 9 seconds and just random.
I might have a look & se if they are at a particular time span & or regular.
This has been happening even when not moving.
Initially I though it could have been shadowing as it usually happens when facing a particular direction.

We haven't bothered about it too much as the the wearer is not getting any where near PBs or world records

Luckily we look at tracks in Realspeed and can easily see any errors, KA72 seems to be giving the same results so that would indicate that the errors are getting through.

sailquik
VIC, 6165 posts
30 Jan 2016 4:59PM
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AUS 808 said..
Andrew,
We have noticed lately some spikes or longer points in the tracks, up to 9 seconds and just random.
I might have a look & se if they are at a particular time span & or regular.
This has been happening even when not moving.
Initially I though it could have been shadowing as it usually happens when facing a particular direction.

We haven't bothered about it too much as the the wearer is not getting any where near PBs or world records

Luckily we look at tracks in Realspeed and can easily see any errors, KA72 seems to be giving the same results so that would indicate that the errors are getting through.


It's good that you check your files in detail in a program.

A 9 second gap could play havoc with you 10 second runs though!!!!

sailquik
VIC, 6165 posts
30 Jan 2016 5:02PM
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Select to expand quote
decrepit said..
I spoke to yoyo today, he thinks it's a write speed problem, something to do with the memory being organised in blocks, when one block is full another has to be started, this too long for the next second to get written to memory.

Yoyo also says, that if he converts the canmore file to .sbp with realspeed, GPSResults then recognises a result with a gap in it.


Is it able to be minimised in some circumstances like clearing the memory completely and having it empty to start?

What is the frequency observed Yoyo and is their any pattern to it?

If that theory is correct, a firmware update from Canmore might fix it.

decrepit
WA, 12761 posts
30 Jan 2016 6:14PM
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Yes, if the memory block theory is correct, you'd expect the gaps at a regular interval

I've just checked one of Stretch's old files, and it's certainly not all that regular and the missing bits come in clumps, here's the times a 2s gap appears.

1244.11, 1247.10, 1248.05, 1248.08, 1248.14, 1248.16, 1248.19, 1248.21, 1248.37, 1255.39. 1255.45, 1255.47, 1255.50, 1255.57, 1300.52, 1302.16, 1303.21
1303.26, 1303.29, 1303.31, 1303.38, 1303.41, 1303.48, 1303.51, 1303.58, 1304.01, 1304.08, 1304.10, 1310.18, 1310.23, 1310.26, 1310.28, 1310.31, 1310.50

Does that blow the memory theory?

BSN101
WA, 2370 posts
30 Jan 2016 6:49PM
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Is there a firmware up date available? Mine doesnt seen to show or indicate the firmware version installed.

skylander
3 posts
28 Feb 2016 7:52PM
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BSN101 said..
Is there a firmware up date available? Mine doesnt seen to show or indicate the firmware version installed.


There seems to be a firmware update on Canmore's website (http://www.canmore.com.tw/download.php), listed under "GP-102 Firmware update". The following files were extracted from the RAR file:

DfuSeDemo GP-102 <directory>
update manual.pdf
GPS_Keychain_140325_SIRF.dfu
reset_factory.bin
update_140509 <directory>

Disappointingly, no changelog was included in the RAR file. To complicate matters, BSN101 has pointed out that the GP-102 device does not show the firmware version installed. This raises the question of which firmware is newer. Perhaps there is some way to determine the installed firmware using the included "DfuSeDemo" software?

P.S: I have not purchased the GP-102, for I am currently researching the pros/cons of this device.

decrepit
WA, 12761 posts
28 Feb 2016 10:01PM
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Skylander,
Pros, cheap, good satellite sensitivity, and seems reasonably accurate. reasonable battery and memory life
Cons, very small screen extremely hard to read on the water! No accuracy info is stored so speeds can't be verified. Only reads in km/hr. Every so often it skips a second, this trips the filters in some analysing software.

skylander
3 posts
1 Mar 2016 12:51AM
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Thanks for your helpful input, decrepit. After reading 10 pages of posts in this thread, I am convinced that the Canmore GP-102+ is certainly a fine GPS logger, but not without flaws.

I am concerned that the data files will be corrupted in the event of a flat battery. Apparently this can by solved by deleting the files in the "Found" folder, or a disk format. But there would be no way to restore the corrupted files :'( And it bugs me that the device can't overwrite older logs when the memory is full. There's also no indication of a "full memory" on the device

There also seems to be a rumour/myth going around that the yellow units are more prone to the "memory full" issue. Is this true? Or is this attributable to the corrupted file system which is amenable by a disk format?

seanhogan
QLD, 3424 posts
1 Mar 2016 5:07AM
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Select to expand quote
skylander said..

There also seems to be a rumour/myth going around that the yellow units are more prone to the "memory full" issue. Is this true? Or is this attributable to the corrupted file system which is amenable by a disk format?


I think this rumour is attributable to corrupted smart asses (incl me )

They all work the same, whatever the colour, just make sure you empty the memory every now and then.

sailquik
VIC, 6165 posts
1 Mar 2016 12:21PM
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Skylander: If you can obtain the new GW-52, it is a far better unit all around as long as you have access to a windows computer. It it likely to cost more though.

raymondw
47 posts
6 Mar 2016 7:52PM
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decrepit said..
Yes, if the memory block theory is correct, you'd expect the gaps at a regular interval

I've just checked one of Stretch's old files, and it's certainly not all that regular and the missing bits come in clumps, here's the times a 2s gap appears.

1244.11, 1247.10, 1248.05, 1248.08, 1248.14, 1248.16, 1248.19, 1248.21, 1248.37, 1255.39. 1255.45, 1255.47, 1255.50, 1255.57, 1300.52, 1302.16, 1303.21
1303.26, 1303.29, 1303.31, 1303.38, 1303.41, 1303.48, 1303.51, 1303.58, 1304.01, 1304.08, 1304.10, 1310.18, 1310.23, 1310.26, 1310.28, 1310.31, 1310.50

Does that blow the memory theory?


No, it is the memory thing.
Tested a yellow unit myself, but it died pretty quickly due to several design flaws.

There are dozens of websites about this: en.wikipedia.org/wiki/Write_amplification
The chip is just not fast enough and the memory is very cheap.
Due to the memory housekeeping the error shows at random moments.
I've seen million dollar systems on there knees due to a cheap SSD...

In the Netherlands we have a topic about the Suunto and Garmin watches.
forum.windsurfing.nl/viewtopic.php?f=65&t=13885643

plettil
64 posts
28 Mar 2016 11:03PM
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hi all,
new issue for me. I updated my mac to 10.7 during the winter. dunno if it is linked, but the Canmore does not show up on the desktop. Any clue?
thank in advance.
kind regards,
Plettil

plettil
64 posts
29 Mar 2016 12:38AM
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sorted ….. just plug it to the mac directly…. …no USB hub, even powered...

skylander
3 posts
13 Apr 2016 9:38PM
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Hey, I'm just curious to know what firmware version are you guys running on? My firmware version reads 006602-20140325

Tinlyds
NSW, 216 posts
10 May 2016 4:30PM
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Well I don't seem to be having any luck at all with my Canmore. New problem is works fine while on the water, however when I get home to download the file it just reads all zeros. I have done a factory reset and went for a bike ride and still the same. I have no idea what to do except buy something that will be more reliable.

Gustenzo
WA, 108 posts
10 May 2016 2:40PM
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I had the old problem of it going flat, thus making my next two recorded tracks readable on the water but unable to upload anything onto KA72. I checked the used memory on my YELLOW Canmore 102 and it was reading full, although I had no files saved in there at the time (previously deleted). So I saved all the 'info' and 'stuff' from the Canmore onto my desktop and used disk utility to erase everything off the Canmore. Once completed I clicked and dragged all the 'info and stuff' back onto the Canmore. Now 99% of the memory is free and I am looking forward to getting on the water and actually uploading some data this time (hopefully with some good speeds!).

I too have though about getting a different GPS, but what else is user friendly and easily compatible with Mac?

seanhogan
QLD, 3424 posts
10 May 2016 4:42PM
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I had an issue with my canmore watch, did just like you Gustenzo, worked a treat.

Main thing is to think of clearing the memory regularly.

Tinlyds
NSW, 216 posts
10 May 2016 5:19PM
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Thanks Gustenzo, I did what you said and yes the memory was full even though I had no files. Anyway went for a bike ride and all is good now, thanks again.

Gustenzo
WA, 108 posts
10 May 2016 6:48PM
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No problem Tinlyds, although I can't claim credit. I have pretty reposted what others have already written . Glad it worked for you



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Forums > Windsurfing   Gps and Speed talk


"First results with the Canmore GPS GP-102+" started by boardsurfr