topic Re: MCU bootloader size in Kinetis Microcontrollers

MCU bootloader size

zorrotz — Wed, 13 Oct 2021 13:19:29 GMT

How much flash and RAM is required for the MCU bootloader?

Thanks in advance

ErichStyger — Wed, 13 Oct 2021 15:13:49 GMT

It really depends on the features you select and optimization level too.

zorrotz — Thu, 14 Oct 2021 07:41:09 GMT

Thank you very much.

I only wanted to have a general idea of required size.

By the way, I follow your blog and I find it very useful to learn MCUXpresso tricks.

ErichStyger — Thu, 14 Oct 2021 08:24:46 GMT

Thank you :-).

To give you an idea:

My bootloader (McuBoot) for the K22 supporting USB HID needs around 18KB Flash and 8 KB RAM (-Os)

Erich