Fully compatible migration from STM32F745VG to STM32F765VI ?

[VPerr.1]

Hello,

For a project I am running code on STM32F745VG. I would like to migrate and replace this MCU with a STM32F765VI with more Flash memory (2MB instead of 1MB).

I saw that these two MCUs are pin to pin compatible, but do I need to modify my hardware (change resistors or capacitors for example...) ?

What are the main differencies that could block the same code from running into the 2 MCUs?

Thank you for your time.

Regards

[Imen.D · Accepted solution]

Hello @VPerr.1​ ,

There is no need to modify in hardware.

You have to check the peripherals you need, whether supported or not

You can use STM32CubeMX, which offers the feature to compare the characteristics of two or more MCUs through the "Cross Selector" tab.

 

In addition, STM32CubeMX allows easily migrate from one device to another, this allows you to optimize the time needed:

click Pinout & Configuration tab > Pinout dropdown > List Pinout compatible MCUs

For more details, refer to the UM1718, "Tutorial 5: Exporting current project configuration to a compatible MCU" which shows how to display the list of compatible MCUs and export your current project configuration to a compatible MCU.

Please mark my answer as best by clicking on the "Select as Best" button if it fully solved your issue.  This will help other users find this solution more quickly.

Imen

[Tesla DeLorean]

>>What are the main differences that could block the same code from running into the 2 MCUs?

Assumptions about the DTCMRAM size.

Flash update IAP/OTA. Banking end-to-end or side-to-side.

[VPerr.1]

Thank you @Imen DAHMEN​ and @Community member​ for your answers. I will go deeper in comparing the caracteristics of these 2 MCUs (including DTCMRAM size) using STM32CubeMX.

Have a nice day!