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Slow USB data logger

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Post time 2017-12-4 19:53:04 | Show all posts |Read mode
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

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