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Problem read file SdCard MSD

Question asked by Daniele Cortellazzi on Dec 19, 2013
Latest reply on Jan 24, 2014 by Daniele Cortellazzi

Hi all, i'm implementing a device that can work like MSD with a SDCard connected to the KL25 micro. The system is working well, the micro can write and read file with the FatFS and the PC recognize the mass storage device. I can open the Sdcard and see all the file but when i try to open one of this the time before read (for example) a txt file is of many seconds (more or less 30 sec ). In the image is selected the moment when i double click on the file txt to open, the system try to read 4096 byte but after 10 sec the system say: Status Cancelled; After that,  three other attempts are done (for a total of 4 tentative). After 30 sec i can see the file. Can you help me, what can be the possible errors?? If i put the sdcard in a reader there is not problem . Thanks 

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