Working way: W and Hold is high, Other SPI BUS.First we send "RDSR" Command but MISO is low like no working, so I try send "WREN" and "WRSR"but is no working.
I find the answer.your datasheet : 1.Before accepting the execution of the Write and Write Status register instructions, thedevice checks whether the number of clock pulses comprised in the instructions is amultiple of eight.so: send“RSDR"+"0xff".
