uBlox GPS data checksum error

[GoogleCodeExporter]

Using GPS emulator to output uBlox NAV-POSLLH format data, the header should be 
"0xb5,0x62" ,but the output data is "0x3F,0x62".

also the checksum is almost error, I found that the checksum number is always 
0x3F.

/******************************************************************************/

 *** uBlox 2012/10/7 11:13:42 = UTC: 2012/10/7 3:13:42 ***
3F 62 01 02 1C 00 4E 59 3F 00 3F 31 24 45 64 63 3F 17 80 1A 06 00 80 1A 06 00 
06 17 00 00 3C 24 00 00 3F 3F  <--- Checksum error

 *** uBlox 2012/10/7 11:13:42 = UTC: 2012/10/7 3:13:42 ***
3F 62 01 02 1C 00 79 57 3F 00 3F 31 24 45 38 5D 3F 17 80 1A 06 00 80 1A 06 00 
06 17 00 00 3C 24 00 00 3F 22  <--- Checksum error

 *** uBlox 2012/10/7 11:13:41 = UTC: 2012/10/7 3:13:41 ***
3F 62 01 02 1C 00 53 53 3F 00 3F 31 24 45 3F 56 3F 17 80 1A 06 00 80 1A 06 00 
06 17 00 00 3C 24 00 00 3F 3F  <--- Checksum error

 *** uBlox 2012/10/7 11:13:40 = UTC: 2012/10/7 3:13:40 ***
3F 62 01 02 1C 00 2E 4F 3F 00 3F 31 24 45 3F 50 3F 17 80 1A 06 00 80 1A 06 00 
06 17 00 00 3C 24 00 00 56 3F  <--- Checksum error

/***************************************************************************/

Original issue reported on code.google.com by 2007....@gmail.com on 7 Oct 2012 at 3:19

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??? any feedback ?

Original comment by 2007....@gmail.com on 14 Oct 2012 at 2:05

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What version of the Emulator are you using? The current version is v2.2.15.

Original comment by paulbmather@gmail.com on 14 Oct 2012 at 7:22

[GoogleCodeExporter]

Version is V2.2.11  

I installed the new version HK' GCS
http://happykillmore-gcs.googlecode.com/files/HK_GCS_Lite_Setup_08292012.exe

the GPS Emulator is v2.2.11 not 2.2.15, so how can I get v2.2.15 ?

Thanks for your feedback !

Original comment by 2007....@gmail.com on 15 Oct 2012 at 1:58

[GoogleCodeExporter]

I'm waiting online.....

Original comment by 2007....@gmail.com on 16 Oct 2012 at 12:19

[GoogleCodeExporter]

Try the attached

Original comment by paulbmather@gmail.com on 16 Oct 2012 at 12:53

Attachments:

• GPSEmulator.zip

[GoogleCodeExporter]

 It doesn't work .

 *** uBlox 2012/10/18 20:54:37 = UTC: 2012/10/18 12:54:37 ***
3F 62 01 12 24 00 3F 3F 5E 17 3F 06 00 00 00 00 00 00 00 00 00 00 3F 06 00 00 
3F 06 00 00 00 00 00 00 11 01 00 00 00 51 25 02 3F 3A 
3F 62 01 04 12 00 3F 3F 5E 17 3F 00 3F 00 61 00 3F 00 3F 00 49 00 3B 00 3F 3F   
<--Checksum error.

 *** uBlox 2012/10/18 20:54:37 = UTC: 2012/10/18 12:54:37 ***
3F 62 01 12 24 00 54 3F 5E 17 3F 06 00 00 00 00 00 00 00 00 00 00 3F 06 00 00 
3F 06 00 00 00 00 00 00 11 01 00 00 00 51 25 02 3F 2E 
3F 62 01 04 12 00 54 3F 5E 17 3F 00 3F 00 62 00 3F 00 1C 01 49 00 3C 00 3F 3F  
<------Checksum error.

Original comment by 2007....@gmail.com on 18 Oct 2012 at 1:11

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

Works fine for me:
 *** uBlox 10/18/2012 9:15:39 AM = UTC: 10/18/2012 1:15:39 PM ***
NAV-POSLLH : B5 62 01 02 1C 00 B3 E2 71 17 D4 C8 B5 3E 1C 35 E2 17 80 1A 06 00 
80 1A 06 00 06 17 00 00 3C 24 00 00 D2 30 

 *** uBlox 10/18/2012 9:15:39 AM = UTC: 10/18/2012 1:15:39 PM ***
NAV-POSLLH : B5 62 01 02 1C 00 37 E2 71 17 D4 C8 B5 3E 8C 33 E2 17 80 1A 06 00 
80 1A 06 00 06 17 00 00 3C 24 00 00 C4 3A 

 *** uBlox 10/18/2012 9:15:39 AM = UTC: 10/18/2012 1:15:39 PM ***
NAV-POSLLH : B5 62 01 02 1C 00 3D E1 71 17 DE C8 B5 3E FC 31 E2 17 80 1A 06 00 
80 1A 06 00 06 17 00 00 3C 24 00 00 41 51 

 *** uBlox 10/18/2012 9:15:38 AM = UTC: 10/18/2012 1:15:38 PM ***
NAV-POSLLH : B5 62 01 02 1C 00 43 E0 71 17 DE C8 B5 3E 6C 30 E2 17 80 1A 06 00 
80 1A 06 00 06 17 00 00 3C 24 00 00 B5 8B 

 *** uBlox 10/18/2012 9:15:38 AM = UTC: 10/18/2012 1:15:38 PM ***
NAV-POSLLH : B5 62 01 02 1C 00 4A DF 71 17 DE C8 B5 3E F0 2E E2 17 80 1A 06 00 
80 1A 06 00 06 17 00 00 3C 24 00 00 3D 5E 

 *** uBlox 10/18/2012 9:15:38 AM = UTC: 10/18/2012 1:15:38 PM ***
NAV-POSLLH : B5 62 01 02 1C 00 50 DE 71 17 DE C8 B5 3E 60 2D E2 17 80 1A 06 00 
80 1A 06 00 06 17 00 00 3C 24 00 00 B1 98 

 *** uBlox 10/18/2012 9:15:38 AM = UTC: 10/18/2012 1:15:38 PM ***
NAV-POSLLH : B5 62 01 02 1C 00 57 DD 71 17 DE C8 B5 3E D0 2B E2 17 80 1A 06 00 
80 1A 06 00 06 17 00 00 3C 24 00 00 25 DB 

Original comment by paulbmather@gmail.com on 18 Oct 2012 at 1:17

[GoogleCodeExporter]

What are your regional settings? I see it's set to yyyy/mm/dd for date. What 
country/language do you have selected so I can try it on my end.

That 3F 62 does not appear anywhere in my code. The header is hard coded as 
&HB5 & &H62 so I don't have any idea why it would be replacing those values 
with &H3F

Original comment by paulbmather@gmail.com on 18 Oct 2012 at 1:22

[GoogleCodeExporter]

More sample output:
 *** uBlox 10/18/2012 9:23:44 AM = UTC: 10/18/2012 1:23:44 PM ***
NAV-VELNED : B5 62 01 12 24 00 38 4A 79 17 FC 06 00 00 00 00 00 00 00 00 00 00 
FC 06 00 00 FC 06 00 00 00 00 00 00 11 01 00 00 00 51 25 02 D9 89 
NAV-POSLLH : B5 62 01 02 1C 00 38 4A 79 17 DE C8 B5 3E 72 11 E2 17 80 1A 06 00 
80 1A 06 00 06 17 00 00 3C 24 00 00 03 80 
NAV-STATUS : B5 62 01 03 10 00 38 4A 79 17 03 DD 00 00 C4 05 00 00 E6 1C 09 00 
DA F0 
NAV-SVINFO : B5 62 01 30 74 00 38 4A 79 17 09 01 00 00 00 1D 0D 07 22 35 1D 01 
B8 02 00 00 01 1C 0D 07 21 43 19 00 05 00 00 00 02 18 0D 04 17 28 3F 00 BA FE 
FF FF 03 0D 0D 07 2A 58 AD 00 9D 01 00 00 04 1E 0D 04 15 1F 3C 01 45 FD FF FF 
05 08 0D 07 1E 32 AA 00 08 FE FF FF 06 0F 0D 04 0C 32 E2 00 E9 FE FF FF 07 05 
0D 04 00 27 B9 00 18 02 00 00 08 20 00 01 00 0A 5B 01 63 01 00 00 5C 79 
NAV-SOL    : B5 62 01 06 34 00 38 4A 79 17 60 26 D7 01 AE 06 03 DD AD 2A 5B F8 
3E 56 1D 1C 53 E0 57 18 E2 04 00 00 FC 06 00 00 00 00 00 00 00 00 00 00 36 01 
00 00 DB 00 00 09 42 49 00 00 66 22 
NAV-DOP    : B5 62 01 04 12 00 38 4A 79 17 C5 00 DB 00 61 00 B5 00 06 01 48 00 
3C 00 6A D2 
NAV-POSECEF: B5 62 01 01 14 00 38 4A 79 17 AD 2A 5B F8 3E 56 1D 1C 53 E0 57 18 
E2 04 00 00 A7 2C 
NAV-VELECEF: B5 62 01 11 14 00 38 4A 79 17 FC 06 00 00 00 00 00 00 00 00 00 00 
0E 01 00 00 49 93 
NAV-CLOCK  : B5 62 01 22 14 00 38 4A 79 17 7E 74 FF FF 4B 00 00 00 0C 00 00 00 
54 06 00 00 EA 9C 
NAV-TIMEGPS: B5 62 01 20 10 00 38 4A 79 17 27 C4 10 FE AE 06 0F 07 0C 00 00 00 
12 48 
NAV-TIMEUTC: B5 62 01 21 14 00 38 4A 79 17 0D 00 00 00 7A 69 00 01 DC 07 0A 12 
0D 17 2C 07 8F 41 

 *** uBlox 10/18/2012 9:23:44 AM = UTC: 10/18/2012 1:23:44 PM ***
NAV-VELNED : B5 62 01 12 24 00 3E 49 79 17 FC 06 00 00 00 00 00 00 00 00 00 00 
FC 06 00 00 FC 06 00 00 00 00 00 00 11 01 00 00 00 51 25 02 DE 3E 
NAV-POSLLH : B5 62 01 02 1C 00 3E 49 79 17 DE C8 B5 3E E2 0F E2 17 80 1A 06 00 
80 1A 06 00 06 17 00 00 3C 24 00 00 76 A7 
NAV-STATUS : B5 62 01 03 10 00 3E 49 79 17 03 DD 00 00 C4 05 00 00 E6 1C 09 00 
DF 41 
NAV-SVINFO : B5 62 01 30 74 00 3E 49 79 17 09 01 00 00 00 1D 0D 07 22 35 1D 01 
6C 02 00 00 01 1C 0D 07 21 43 19 00 D6 FF FF FF 02 18 0D 04 17 28 3F 00 B2 FE 
FF FF 03 0D 0D 07 2A 58 AD 00 72 01 00 00 04 1E 0D 04 14 1F 3C 01 C1 FD FF FF 
05 08 0D 07 1D 32 AA 00 E3 FD FF FF 06 0F 0D 04 0B 32 E2 00 EB FE FF FF 07 05 
00 01 00 27 B9 00 F8 01 00 00 08 20 00 01 00 0A 5B 01 34 01 00 00 A5 91 
NAV-SOL    : B5 62 01 06 34 00 3E 49 79 17 AB E8 4A FE AE 06 03 DD 62 2A 5B F8 
52 57 1D 1C FF DE 57 18 E2 04 00 00 FC 06 00 00 00 00 00 00 00 00 00 00 18 01 
00 00 DD 00 00 09 42 49 00 00 40 1D 
NAV-DOP    : B5 62 01 04 12 00 3E 49 79 17 C5 00 DD 00 61 00 B4 00 7E 00 48 00 
3B 00 E6 06 
NAV-POSECEF: B5 62 01 01 14 00 3E 49 79 17 62 2A 5B F8 52 57 1D 1C FF DE 57 18 
D8 04 00 00 16 06 
NAV-VELECEF: B5 62 01 11 14 00 3E 49 79 17 FC 06 00 00 00 00 00 00 00 00 00 00 
2C 01 00 00 6C 70 
NAV-CLOCK  : B5 62 01 22 14 00 3E 49 79 17 23 74 FF FF 4A 00 00 00 0C 00 00 00 
5A 06 00 00 99 5D 
NAV-TIMEGPS: B5 62 01 20 10 00 3E 49 79 17 68 00 8B FE AE 06 0F 07 0B 00 00 00 
0E 03 
NAV-TIMEUTC: B5 62 01 21 14 00 3E 49 79 17 0C 00 00 00 BD 09 EE 00 DC 07 0A 12 
0D 17 2C 07 63 DD 

Original comment by paulbmather@gmail.com on 18 Oct 2012 at 1:24

[GoogleCodeExporter]

This sure looks like it's a Unicode problem.

Original comment by paulbmather@gmail.com on 18 Oct 2012 at 1:25

[GoogleCodeExporter]

Yes，it's  Unicode problem. I change my country/language from Chinese into 
English ,then everything is OK.

Thanks for your help indeed.

Original comment by 2007....@gmail.com on 18 Oct 2012 at 2:21