USB low-full-high speed peripherals

[Aniket_]

Hello,

      As per KBA89285 I found these register address  0xE507 to 0xE50C holds unique id but I am getting same id for each  Cypress FX2LP controller  . I have used following methods to declare in header file and these variable are used in main file used directly

// Unique ID

EXTERN xdata volatile BYTE UNIQUEID1 _AT_ 0xE507; // UID1
EXTERN xdata volatile BYTE UNIQUEID2 _AT_ 0xE508; // UID2
EXTERN xdata volatile BYTE UNIQUEID3 _AT_ 0xE509; // UID3
EXTERN xdata volatile BYTE UNIQUEID4 _AT_ 0xE50A; // UID4
EXTERN xdata volatile BYTE UNIQUEID5 _AT_ 0xE50B; // UID5
EXTERN xdata volatile BYTE UNIQUEID6 _AT_ 0xE50C; // UID6

is it right method?

- or Any other methods are available for reading unique id in fx2  ??

[MallikaK_22 · Accepted solution]

Hi,

Each FX2LP has a unique ID stored in the registers as mentioned in the KBA article.

I have attached an example project which updates its serial number with the unique ID of the device. Please refer to the InsertSerialNumber() in the firmware for implementation.

Regards,

Mallika 

[Aniket_]

Hello,

Thank you for your response . I am getting different Unique Id for each FX2 controller if REVID is 1 but if  REVID is 4 I am getting 0 as unique id for each FX2 controller, which is not unique. Why Unique ID is NOT unique for REVID:4 FX2 controller?

[Aniket_]

Hello,

            Thank you for your response . Now I am able to read unique id in cypress FX2 controller.

            I observed one thing when my REVID register value is 0004 than my unique id registers values are zero and when my REVID register value is 0001 than I get different unique id register values in different controller. Any solution for this problem .

[MallikaK_22]

similar thread: https://community.infineon.com/t5/USB-low-full-high-speed/Unique-chip-id-for-CYFX2LP-controller/td-p...