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STM32F4x9 dual bank on 1MByte devices

jgoril2
Associate
Posted on September 01, 2014 at 11:08

I cannot find some details about how this dual bank mode works. Can anybody make my questions clear?

If DB1M is enabled, does sectors numbering change also for WRP and/or PCROP protection setting?

If DB1M is enabled, can 1MByte device boot from bank 2 (bit BFB2)?

What will happen if DB1M will be enabled on device with different density (2MByte)?

Thanks a lot for your help.

Jozef

#stm32f4 #flash-dual-bank
1 REPLY 1
Posted on September 01, 2014 at 14:39

I've only ever seen One Bank 1MB devices, and Two Bank 2MB devices.

You might have to do some of your own experimentation, and review the System Loader ROM

I would imagine that it would behave similarly to the Two Bank 2MB devices, that the sector numbering would be discontinuous, and the memory perhaps also.
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