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Favorites: TTN5 to TTN6 Doesn't Work
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JockTamsonsBairn
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Joined: Jan 10, 2004
Posts: 2777
Location: Bonnie Scotland (West Central)

PostPosted: Sun Feb 18, 2007 5:30 pm    Post subject: Reply with quote

Quantum wrote:
Here's what I infer so far. I'm sure these Winduhs Prodigies will correct me if I'm wrong somewhere.
This attitude really is beginning to wear thin! If you are offended by being taken as one of the 95% of "ordinary" people who use Windows, why don't you stick one of these in your Signature?

Quantum wrote:
For many it works, but others have had my problem too, and so BGF recommends (above) converting them from Favorites to Points of Interest, which I think is a stupid way to handle it. I don't want them awkward POIs.
I didn't, but I was going to Laughing . I suspect that there may be a US/Europe divide here. Each European country has a Map and a Plus Map. The Plus map contains the country and the Major Roads of Europe, but not down to street level in the foreign countries. There is also a Map of Western Europe which contains street level mapping of the whole of Europe. This means that people, who want to copy their favourites between maps, are used to using POI files for this purpose. Several utilities allow conversion of .CFG files into POI files. If you're still having problems with the CFG method, and can find no other solution, it might be worthwhile considering that, unless you actually want to type them in by hand. If you are really stuck, and can post the file somewhere, I could convert it for you.

Quantum wrote:
Apparently no one here is technical to have figured out what is going wrong.
I'll avoid the obvious "If you're so clever ..." comment. Laughing
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Jock

TomTom Go 940 LIVE (9.510, Europe v915.5074 on SD & 8.371, WCE v875.3613 on board)
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Quantum
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Joined: 16/02/2003 03:21:58
Posts: 285
Location: Seattle, Ecotopia

PostPosted: Sun Feb 18, 2007 7:18 pm    Post subject: Reply with quote

I didn't come here with a negative attitude, BGF. You and mullet inflicted one on me. I've been a member here a while and have contributed some pretty technical posts, including checking your pod in WAAS at an actual GPS land reference point location.

Now; I have been warning you and Mullet to take it easy. Some of us sound stupid because we are extremely busy. You have the time to be here alot, so I'm saying cut the spitballs and if you're going to help please do so with a good attitude. You never know who you may p!ss off. Hopefully the message got through.

As to whether I am so clever, I've analyzed several .cfg files and sussed much of its structure, a global first AFAICT:
Code:
TomTom .cfg File

[b]Preamble:[/b]
04  00  DD  OF  00  00  08  7B  00  04  00  DD  0F  00  00
02 (country? US=02  Can=01 1E)

[b]Before-Location:[/b]
04  00  03  00  00  00  04  00  04  00  00  00  08  00

[b]After-Location:[/b]
04  00  00  00  00  00

[b]Postamble:[/b]
08  CC  10 1B  1B  1B  1B  1B  1B  1B 1B  1B  1B 1B  1B
1B  1B  1B 10  00  00   00  00  00  00  00  00  00  00  00
00  00  00  00  00  00   08  30  11  1C  00  00  00  00  00
00  00  00  00  00  00  00  00  00  00   00  00  00  00  00
00  00  00  00  00  00  00  00  00  08  9C  11  1D  22  1B  1B
02  02  08  FB  11  1B  1B
1B  1B
1B  1B
08  EC  13  0C

[b]Checksum?  (different files)[/b]
TTN6 West Map
FB  69  45  09  A7  CF  48  08  88  13  1B  1B
08  7C  15  61  08  AE  15  1B

TTN5 West-Map
08  9C  11  1D  22  1B  1B
02  02  08  FB  11  1B  1B
1B  1B
1B  1B
08  EC  13  0C  6D  5C  45  09  10  AE  48

TTN5 South-Central Map
B4  5A  6C  09  8A  5E  32

TTN5 Major Roads of America Map
37  8B  45  09  F0  74  48

TTN5 Canada Map
9C  B0  44  09  D8  C4  4A


The last several bytes are most suspect. This appears to be a classic CRC checksum of the rest of the file. If I had more time I could test this theory.

But at this point I suspect that TTN6 thinks my West .cfg is failing CRC check, and so wipes it. None of the other regional .cfg's flunked, so it's doing something right. But there must be something about my West .cfg .

If I get time I could ascertain how CRC is being calculated, and simulate that to correct my file. I am out of time now though.
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Quantum
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Joined: 16/02/2003 03:21:58
Posts: 285
Location: Seattle, Ecotopia

PostPosted: Sun Feb 18, 2007 8:06 pm    Post subject: Reply with quote

Uh, correction to the above:
Code:
TTN5 West-Map
 6D  5C  45  09  10  AE  48


Notice how in every config file for TTN5, the 4th byte from the end is always 09? This argues against at least part of this being a CRC check.
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JockTamsonsBairn
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Joined: Jan 10, 2004
Posts: 2777
Location: Bonnie Scotland (West Central)

PostPosted: Sun Feb 18, 2007 8:07 pm    Post subject: Reply with quote

Quantum wrote:
Hopefully the message got through.
Indeed
8O
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TomTom Go 940 LIVE (9.510, Europe v915.5074 on SD & 8.371, WCE v875.3613 on board)
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Mullet
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Joined: Dec 12, 2005
Posts: 1051

PostPosted: Mon Feb 19, 2007 1:58 am    Post subject: Reply with quote

deleted

Last edited by Mullet on Mon Jul 09, 2007 1:13 am; edited 1 time in total
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Quantum
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Joined: 16/02/2003 03:21:58
Posts: 285
Location: Seattle, Ecotopia

PostPosted: Tue Feb 20, 2007 3:13 pm    Post subject: Reply with quote

Hm, I notice that no one has said anything about mullet's childish tantrum.

Silence, always means assent, so everyone here obviously agrees with him. A hostile place for me.

And so I am not going to share my findings with you.

Have a nice day! Laughing
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Mullet
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PostPosted: Tue Feb 20, 2007 8:39 pm    Post subject: Reply with quote

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