STM32 Bootloader size

[AMost]

Dear All,

I am going to use stm32f030f4 which has 16K flash & 4K SRAM. if I use STM32 bootloader , will Bootloader reduce available Flash/Ram or there is other reserved section for Bootloader i mean that i would like to save all flash/ram space for my application.

Best Regards,

Ahmed.

[Tesla DeLorean]

The RAM is a reusable resource when it comes to loaders.

If you write your own loader it will consume FLASH. The chip comes with a system loader in a separate ROM/OTP location that doesn't eat into your available FLASH space. ​

[AMost]

Thanks a lot for your reply.

what is the best document that i can read to use STM32 system loader

[Tesla DeLorean]

AN2606 is an overview. And there are others describing the protocol on different connections, USART might be most helpful, so AN3155.

https://www.st.com/content/ccc/resource/technical/document/application_note/b9/9b/16/3a/12/1e/40/0c/CD00167594.pdf/files/CD00167594.pdf/jcr:content/translations/en.CD00167594.pdf

https://www.st.com/content/ccc/resource/technical/document/application_note/51/5f/03/1e/bd/9b/45/be/CD00264342.pdf/files/CD00264342.pdf/jcr:content/translations/en.CD00264342.pdf