kwarek / gr260dl Goto Github PK

What steps will reproduce the problem?
1. Downloading data from GPSport 260 Pro using gr260_dl-r7
./gr260dl -i /dev/ttyUSB0 -a -g alt.gpx

The GPX file contains wrong speed data (e.g. speed 160 when actual speed was 4 
km/h). I can not find a regular difference between actual data and the gpx file 
with gr260_dl.

Thanks for this application. It allows me to export heart rate data from the 
device, which eztours is not capable. It would be grate if you could fix the 
speed data issue. 

The gpx elevation data is incorrect. It'll usually double my climbing and 
descending accumulated meters. Yesterday, for example, I rode 70 km, which made 
me ascend and descend around 500 meters. That's what was displayed in the 
GPSport 260 Pro screen at the end of the ride.

Although, when generating a gpx and running a script over it which sums the 
amount of climbing and descent, it goes as far as 900 meters. The same happens 
when I upload it to Runtastic, so I think the problem is not with the script. I 
also notice suspect elevation in the gpx, because I started my ride at 965 
meters and the first record of the gpx regarding elevation is beyond 970 
meters. Finally, I also compared these info to the info generated by a Garmim 
Edge and the Garmim computes the 500 meters correctly.

I already took a look at the source code, but I couldn't find anything that 
would look like some sort of formula for elevation calculating.

Hello,

I am using a Mac, every time I have to open windows to download tracks from my 
GPSport260 and tag photos. I tried to compile the code on the Macbook but 
failed with the following message:

gcc -O2 -W -Wall -ggdb  -o gr260dl gr260dl.c
gr260dl.c: In function ‘dumpWaypoints’:
gr260dl.c:295: warning: format ‘%2d’ expects type ‘int’, but argument 2 
has type ‘long unsigned int’
gr260dl.c:295: warning: format ‘%2d’ expects type ‘int’, but argument 2 
has type ‘long unsigned int’
gr260dl.c: In function ‘main’:
gr260dl.c:350: error: nested functions are disabled, use -fnested-functions to 
re-enable
gr260dl.c:527: error: ‘B921600’ undeclared (first use in this function)
gr260dl.c:527: error: (Each undeclared identifier is reported only once
gr260dl.c:527: error: for each function it appears in.)
make: *** [gr260dl] Error 1

I am running on MacOS X Lion with Xcode 4.3.2, with a Macport 2.0.4 framework.

Thanks for your efforts writing the code and I can compile it on a Fedora 16. 
It will be great if you could get it run on a Mac. Thank you.

Hello,

Actually it is not an issue, I just want to ask about crc sum calculating, I 
have not found your e-mail.

Could you please tell me how to calculate crc sum? I tried different 
calculators, but all they gave me wrong result. I write program for uploading 
tracks to device and has faced with such issue, I cannot upload data without 
crc sum.

Do you know the algorithm?

Best regards,
Alexander