Enable FLASH_EEPROM_LEVELING by default for STM32F4 boards #17948
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thinkyhead
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A: STM32
F: EEPROM
PR: Improvement
T: HAL & APIs
vgadreau
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May 29, 2020
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Description
Enable
FLASH_EEPROM_LEVELINGby default for several boards.Benefits
These boards use a 128kB flash sector to store 4kB of configuration settings. Erasing this sector takes about one second, and subjects the sector to unnecessary wear.
This change allows the sector to be erased only every 32rd time settings are stored.
I was going to submit this change along with #17946, but it mostly hides the problems that PR is improving. Testing that PR with
FLASH_EEPROM_LEVELINGenabled would reduce the frequency of errors by about 97%, so I moved it to a separate PR.