I am using S25FL512SAGMFI013 in my design. By default this device comes in 3 byte mode. How can I set to 4 byte mode. In the datasheet, it is telling to set  EXTADR bit for enabling 4 byte mode. But this is a volatile bit. Is there any other way to set the mode?

I need the way to keep software in common in preparation for future development SPI.

Please give me advice how to prepare.

I strongly feel the need, because S25FL-T ’s development seems to be just prepared on Cypress roadmap.

http://www.cypress.com/product-roadmaps/cypress-flash-memory-roadmap

Some command definitions is different for each SPI product.

I think that the behavior of Erase command(D8h) is most important.

  (S25FL064L) D8h means 64kB sector erase.

  (S25FL256L) D8h means 64kB sector erase.

  (S25FL512S) D8h means 256kB sector erase.

  (S25FL512T) What does D8h mean?  64kB or 256kB?

The system should be prepared as follows;

• Equip with both 64 kB and 256 kB sub-routines.
• Identify which type of SPI is mounted on the board.
• Choice appropriate sub-routine, according to the identified

Please give me advice how to identify which type of SPI is mounted on the board.

I feel that SFDP parameter is useful for this case. Please confirm it.

Or, if you have other easier ways, please let me know.

(Previous conversation)

https://community.cypress.com/thread/31423

>> There is no special/specific reason.

I understand that the Device ID definition have no rules, but that's why I believe the ID should not be used to identify future products.

Best regards

Hi team,

The arguments of slld_WRRCmd / slld_WRROp functions do not fit both S25FL-L and S25FL-S families.

Do you have the plan to modify them?

SLLD_STATUS slld_WRRCmd

(

BYTE     *status_val,     /* variable containing data to program the status register */

BYTE     *config_val,     /* variable containing data to program the config register */

BYTE     *status2_val     /* variable containing data to program the status register2 */

);

SLLD_STATUS slld_WRROp

(

BYTE     *status_val,     /* variable containing data to program the status register */

BYTE     *config_val,     /* variable containing data to program the config register */

BYTE     *status2_val,     /* variable containing data to program the status register2 */

DEVSTATUS     *dev_status_ptr     /* variable to store device status */

);

in case of S25FL-S

Write Registers (WRR 01h): Write Register (Status-1, Configuration-1)

in case of S25FL-L

Write Registers (WRR 01h): Write Register (Status-1 and Configuration-1,2,3)

Thanks and regards.