USB MSC

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USB MSC

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AsafTv
Contributor II

I use MK64FN1m0XXX12 device.

I Implemented USB MSC example in my code.

I Try to read or write 16Mbytes File from it but is to slowly...

I Try to increase the buffers inside the example disk.c but also is to slowly...

advice

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3 Replies

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nxf77486
NXP Employee
NXP Employee

Hello @AsafTv ,

Can you please provide the exact example of the SDK USB MSC you are currently testing. Also I attached a community post of what I believe is a similar problem, if not please let me know in order to find the right solution for you.

USB MSC Data Rate on FRDM-K64F 

 

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AsafTv
Contributor II

I use example from the SDK using MCUXpresso to generate it.

 I increase the buffer for read and write to 64 * 512 and I'm not see changes.

it take to write file of 16Mbytes 28 second 

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nxf77486
NXP Employee
NXP Employee

Hello @AsafTv 

Can you please help me with the name of the example of the SDK you are currently using (see image attached for reference).

Also if you have a program for USB descriptor it will be helpful to understand better the situation. I usually use the USB Device Tree Viewer.

nxf77486_0-1643223640137.png

 

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