Again,
A CFI flash should be program in following procedure.
Just do Program0 to Program7 and Flash will be written.
I'm sure ST, SST, Winbond, MXIC, Spansion, Samsung do so because my emulator act with universal programmer by this sequence.
Please, look at this again.
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When Program0=> D(7 downto 0)<= "10101010";A(10 downto 0)<="10101010101"; WE<='0'; --555/AA
When Program1=> WE<='1';
When Program2=> D(7 downto 0)<= "01010101";A(10 downto 0)<="01010101010"; WE<='0'; --2AA/55
When Program3=> WE<='1';
When Program4=> D(7 downto 0)<= "10100000";A(10 downto 0)<="10101010101"; WE<='0'; --555/A0
When Program5=> WE<='1';
When Program6=> D<="your data"; A<="your address"; WE<='0';
When Program7=> WE<='1';
