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Configuring N25q_256 to QuadSPI mode in K82F

Question asked by Krishna Rao on Dec 1, 2015
Latest reply on Dec 7, 2015 by Hui_Ma


I am having problem in configuring the N25Q256A flash from micron that comes with TWR-POS-K81. I have tried


1. Clearing bit 3 of the  Nonvolatile Configuration Register.

2. Clearing bit 7 of the Enhanced Volatile configuration register.


But both the methods doesn't seem to work.

Reading both the registers after setting those bits again give me the old values. I set the WEL in the status reg before programming these two registers.


If any sample code to initialize the N25Q256A flash to QuadSPI will be greatly appreciated.


Thanks a lot