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STM32H743VGT6 flash memory

JBond.1
Senior

Hi, I have bought STM32H743VGT6 and want to make bootloader and application. The issue is that its memory layout is confusing. In documentation and generated application I see/assume flash memory is:

0x8000000 size 0x80000 (512kb bank1?) // bootloader
0x8100000 size 0x80000 (512kb bank2?) // application

But when I try to write to 0x8100000 I get "Error occured during memory writing!". Instead I can write to

0x8000000 size 0x100000 (1024kb)

Does this mean I have only Bank1, but no Bank2? Can I still do bootloader which is on Bank1 and writes to flash on same Bank in different sector? How can it be that I have only one Bank?..

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