I'd like to use the same firmware for different types of MCU.

[hjuns]

Hello everyone,

​

​I faced a shortage of MCU materials.

So I found an MCU that uses the same pin map.

I would like to change STM32F767IIT to STM32F767IGT.

​

1. Please let me know if the change is okay.
2. Clock does not work when using STM32F767IGT.

If bootloader is used, systick will not work; if disabled, systick will work.

( bootloader is STM32F767IIT firmware).

I need help.

Please answer me.

[Mike_ST]

Hello,

F767 to F767 is fine, and you shouldn't have differences between both.

>> Clock does not work when using STM32F767IGT.

Your Systick issue is probably not related to the change of the flash size.

[hjuns]

Thank you for your answer. :grinning_face:

​

You mean can I use the firmware made with stm32f767ii for 767IG?

[Mike_ST]

It is always better to adapt/recompile your firmware for your specific target.

But as long as your firmware fits in 1MB flash and don't make use of flash blocks after the 1MBytes limit,

I don't see any reason why it won't work.

Anyways you know better your own design, do the appropriate checks.