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System containing STM32 microcontroller slows when 16GB pendrive connected compared to 8GB

Question asked by on Apr 14, 2014
Latest reply on May 3, 2014 by Clive One
I am using STM32F407VGT6 microcontroller featuring 1 MB of Flash memory, 192 KB of RAM in my system which is having a usb connector.

End use is logging data into pendrive.I am using STM32_USB_HOST_Library mass storage class and FatFs Module Source Files R0.07e (C)ChaN, 2009, for this.

Writing  & reading data from pendrive is succefully working.But when connecting 16GB pendrive system becomes slow & restarted as WatchDog() function is enabled.

It will be grateful if anybody can give me a solution in this issue.