Reading STM32U5A5 Rev. ID returns 0x3003 that is not listed in Reference Manual

[omniwiz]

Reading STM32U5A5 Rev. ID returns 0x3003 using STM32Cube HAL API that is not listed in Reference Manual (RM0456). What is the revision of this product? The Reference manual lists only 0x3001 as revision X and 0x3002 as revision W.

Thanks.

[KDJEM.1]

Hello @omniwiz and welcome to the community;

 

To check the issue, could you please share a photo of STM32U5A5 device and a screenshot of DBGMCU identity code register (DBGMCU_IDCODE) contents?

 

Thank you.

Kaouthar

[omniwiz]

Thanks for the response, @KDJEM.1 !

The DBGMCU_IDCODE content is 0x30036481. Also attached is the photo of the STM32U5A5 device.

 

[KDJEM.1]

Hello @omniwiz ;

 

Thank you for sharing the MCU photo.

Could you please connect the your device using STM32Cubeprogrammer toolchain and share screenshots of the values at addresses 0XE0044000 (DBGMCU identity code register) and 0x0BFA 0700 (Unique device ID register) as shown in the below figures.

 

 

Thank you.

Kaouthar

[Saket_Om]

Hello @omniwiz 

I checked the HAL_GetREVID() function and confirmed that it reads the upper 16 bits of the DBGMCU_IDCODE register, as specified in the reference manual.

uint32_t HAL_GetREVID(void)
{
 return ((DBGMCU->IDCODE & DBGMCU_IDCODE_REV_ID) >> 16);
}

 

 

[omniwiz]

Hello @KDJEM.1 ,

Do you have an update? Thanks!

[KDJEM.1]

Hello @omniwiz ;

 

Thank you for sharing these screenshot.

I reported this issue internally for checking.

I will get back to you with more details as soon as possible.

 

 Internal ticket number is reported : 218731 (This is an internal tracking number and is not accessible or usable by customers)

 

Thank you.

Kaouthar

[Viktor POHORELY]

Hello, I confirm that revision W provides reading of 0x3003. RM/ES will be updated (for RM, the update is taking usually longer time).

[Tesla DeLorean]

Is this a second source fab for the die?

Can you list all the current DEVID?

[omniwiz]

Thanks, @Viktor POHORELY and @KDJEM.1 !