Mass storage problem with USB

ellisshz · ‎2010-05-22

Posted on May 22, 2010 at 18:22

frankfrank953 · ‎2011-05-17

Posted on May 17, 2011 at 13:52

Hello, I have had a similar problem.. if you have a look at my SPI Problems post I have a driver that is compatible with this device. I think you mean that you are communicating with the device as an SPI device not USB.

To get data to be stored the key is to erase the page/sector before you write and also make sure that the Sector Protect bit is reset before you attempt any operation.

Have you read the datasheet for the EEPROM device ? because that will tell you about write requirements.

ellisshz · ‎2011-05-17

Posted on May 17, 2011 at 13:52

hi,

thanks for your answer first.

But i was used M25P16 flash to my media for mass storage device.

so when i was insert my device to the PC, the usb flow not run into scsi write 10 state and it can't format.

ellisshz · ‎2011-05-17

Posted on May 17, 2011 at 13:52

hi,

I have attached two files and the code are modify by mass_mal files.

Does there have to amend?

thx