The S29GL512 has more than one problem I can not understand.
1: Low or High states of the WE CE OE pins in writing. 2: In the case of reading again the states of the 1 st posting pins. 3: To start the Write and Read routines, the appropriate CE CE OE pin is adequate. 0x0555, 0x0AAA in initialization routines if there is not enough I have a shortage of how to sort the initialization codes.