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07/22/2004, 12:01 PM
#152
 Originally Posted by PAC
What kind of SD card are you using? And are you plotting this while the GPS is active? I have a Sandisk 128MB card and it's *much* slower reading from the card vs. copying from RAM. Terribly slow, compared to RAM. So slow, in fact, that searching or plotting routes through major cities causes my Treo to reset if the city isn't loaded to memory.
I have problems just routing *anywhere* if the county maps are selected and the distance is greater than about 200 miles or through a major metropolitan area.
Case in point, last weekend we were in downtown Chicago with all of Illinois (general road and counties) selected from the SD card. When we were ready to head for home I requested Mapopolis to plot us a course from where we were (Michigan Ave, by the Art Museum), to my home 4 hours south, Mapopolis sat and thought about it... Now I've driven this route many times, so I know how to get home but I wanted to see how Mapopolis would do, so I kept on driving south on I-55. Somewhere near Joliet (45 minutes later), Mapopolis finished. When it finally started rebuilding the screen to display the route it immediately reset my Treo. When I got home I tested copying just Cook County (all 8mb or whatever it is) to RAM and re-routing. It took about 30 seconds before building the map.
I use a SanDisk 512 card. Not the Ultra or Ultra II. I ran a card test on it and it said that performance was just average.
I have the gps start at the start of Mapopolis automatically. So, whenever I plot, the gps is running and I have a signal.
I don't know if it makes a difference, but I have about 7M free on my treo
When I went on my trip, including county maps (2) and state major road maps (7), the total maps weighed in at 8.446M. This route was plotted from the card with "Highways Neutral" and was done in less than 30 seconds.
Maybe SafeHarbor can give us some idea as to why things work well for some and not so well for others.
One last note ... I have no hacks installed on my treo with the exception of Treo Allegro, and I'm not sure it's even a hack. Do you have any hacks installed on your treo? Mapopolis does not play nice with them ...
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