PDA Go Slow - TTNAV or Bluetooth issue?

[chipfork]

*** Posted in PPC 2002 Support Forum too ***

iPAQ 3970, Emtac BT GPS, PPC2002, SanDisk 256MB SD (Taiwan), TTNAV 2.24, GPS 2.07.

The saga continues, upgraded ROM from 2.00 to 2.10 and applied the SD fix. Working fine, re-installed key software components without a problem.

However noted that when I started TTNAV the PDA ground to a halt, screen takes seconds to build/refresh - icons in Navigator would appear one at a time. Clicking on Start Menu meant waiting for 5 secs or so and then very slow. Managed to eventually close TTNAV and still slow but alternates every 20/30 secs or so between slow and normal.

Tried taking out the SD card, I'd reformatted it with FAT32 (16kb clusters), but no effect. Tried disabling the Bluetooth Radio and that seems to be the problem, disabling it seems to stop the problem. Not noticed a problem before as only enabled the radio once I installed TTNAV.

Not always slow with Bluetooth Radio on, managed to pair Emtac GPS ok and run "Crux View" but just got read errors when selecting the correct port. As soon as I start the TTNAV GPS utility that's when the slow down kicks in, stopping it doesn't seem to make much of a difference but disabling the BT Radio fixes things.

[DavidW]

Detailed answer already made to your other post.

I think it's the Sandisk SD card.



David

[Pat Boy Slim UK]

Yes its the sandisk card ! Tomtom themselves told me this.Its a known problem to them.The sandisk card has a slow access rate,so when the IPaq/Tomtom tries to read from the card it cant get the data off fast enough.A card with an access speed of 10mb/sec would be ideal.

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