[STM32Gx]: Added erase support for multi-bank products #1420
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Nightwalker-87
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Aug 10, 2024
Nightwalker-87
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Products of the Gx series with more than 128K of flash use 2 banks. In this case we need to specify which bank to erase using the BKER bit. Reference: 3.7.5 - BKER
As described in 3.3.8, if erasing while another mode's "enable" bit is set, a programming sequence error will be raised. This change makes sure this will not happen for an erase operation.
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Some products of the Gx series (namely the G0B1) use mutiple flash banks.
On those products we need to explicitely set the
BKERbit to chose which bank to erase. This is currently not done.This would also cause a
Programming Sequenceerror if trying to flash (into bank1 by default currently) when the program on the board already tried to erase a part of bank 2 (since the BKER bit was last set tobank 2and we didn't change it).