Slow USB data logger

breckjensen

Hello guys,

PIC 24FJ256GB106 MPLAB 8.92 MLA _v2013-06-15
Using 16GB Verbatim,  formatted to 4096 Allocation Unit Size.

The FSconfig is set for #define MEDIA_SECTOR_SIZE 512.

After approximately 5MB of drive usage the opening and creating of files starts to take a long time. For instance a 304 byte file would take 2 minutes.  There is no corruption of data, just really slow to complete the task.
When i replace the thumb drive with an empty stick of the same type and format, it saves the file as per normal.
I appreciate there's not much to go on here, but if anyone has seen anything like this, I can provide more info to discuss further.


thanks

more details:

Business Motion Graphics Video