Hello, can I use the external flash as a micro memory bank?؟؟ To do a firmware update

[Hafsh.2]

I want to update the firmware and my micro is a single bank flash memory.

 Is it possible to do a firmware update with this micro ??

 Or should it be dual bank flash memory ??

Can I use AT45DB321 as a second memory bank ??

[Hafsh.2]

Hello. Can anyone help me?

[Piranha]

You haven't even mentioned the MCU...

Start with learning some basics:

https://stackoverflow.com/questions/34590379/how-to-implement-iap-in-application-programming-for-stm23f107-arm-microcontrol

After that continue to reading AN4657 as an example and AN2606.

[Hafsh.2]

Thanks for your tips