STM32L496ZGT HASH ISSUE

[zeboss49]

Hello,

I’m facing a strnge issue in the code generated by CubeMX for the STM32L496ZG.

The project was imported in CubeIDE and compiled fine.but, as soon as HASH is activated the project no longer compiles and throws several hundreds of errors.

CubeMX version is 6.17.0

CubeIDE version is 2.1.1

Looking at the errors, it appears that the HASH symbol is not defined, resulting in the associated code being grayed out.

Regards

[Tesla DeLorean]

Check if it has a HASH unit

Try building for L4A6

 

[zeboss49]

Hello,

according to the datasheet, it has a HASH unit.

But the Product grid at url: STM32L4 - ARM Cortex-M4 ultra-low-power MCUs - STMicroelectronics states that only the L4A6 has one.

Please could do your best to fix the error in the datasheet?

 

 

[Tesla DeLorean]

>>Please could do your best to fix the error in the datasheet?

I don’t work for ST Micro..

The product page also states “The STM32L496xx devices embed HASH hardware accelerators.”, but is absent from the block diagram.

https://www.st.com/en/microcontrollers-microprocessors/stm32l496zg.html

Changing the product to an L4A6ZG in the IDE will allow it to compile without generating a lot of errors as it will include the right files, rather than exclude them and sub-sections bracketed with #ifdef/#endif.

You could test if the code for the HASHing does in fact work or not once you have code that builds and links properly. If the L496ZG does in-fact have the accelerator, then it’s the HAL code that needs fixing, not the data sheet.

The L496/L4A6 are basically the same IC, the former just having the encryption portion disabled/deactivated during production testing to reduce licencing costs, and import/export issues.

[Andrew Neil]

I don’t work for ST Micro

 

Neither do I !

​@zeboss49 see this thread for how to identify actual ST people: