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[mkgmap-dev] Base map interfering with routing

From Valentijn Sessink valentyn at blub.net on Fri Feb 11 13:42:02 GMT 2011

Minko schreef:
> After reflashing the firmware the routing problems have gone....

Just a remark - I don't know if it would have been useful for your
situation. When I build maps, I increment the "mapname" parameter
automatically: --mapname=3100${mapid} where mapid is variable that I
increment each time I run mkgmap. I did this because I saw my Garmin
Nüvi crash whenever I used a new map with the same map-number as the old

I concluded that the Nüvi probably does some sort of caching of it's
current map, and got confused whenever the map had changed but the map
number had not.

So I don't know if this is identical to your situation; next time, you
might want to try a map with a different "mapname" and see if it will
route again.

Best regards,


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