2017-08-07 19:20:02 +00:00
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menu "Wear Levelling"
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2017-07-20 10:09:39 +00:00
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choice WL_SECTOR_SIZE
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2017-08-07 19:20:02 +00:00
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bool "Wear Levelling library sector size"
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2017-08-07 19:22:42 +00:00
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default WL_SECTOR_SIZE_4096
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2017-07-20 10:09:39 +00:00
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help
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2017-08-07 19:20:02 +00:00
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Sector size used by wear levelling library.
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2017-07-20 10:09:39 +00:00
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You can set default sector size or size that will
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fit to the flash device sector size.
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2017-08-07 19:20:02 +00:00
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With sector size set to 4096 bytes, wear levelling library is more
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efficient. However if FAT filesystem is used on top of wear levelling
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library, it will need more temporary storage: 4096 bytes for each
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mounted filesystem and 4096 bytes for each opened file.
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With sector size set to 512 bytes, wear levelling library will perform
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more operations with flash memory, but less RAM will be used by FAT
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filesystem library (512 bytes for the filesystem and 512 bytes for each
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file opened).
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config WL_SECTOR_SIZE_512
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2017-07-20 10:09:39 +00:00
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bool "512"
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2017-08-07 19:20:02 +00:00
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config WL_SECTOR_SIZE_4096
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2017-07-20 10:09:39 +00:00
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bool "4096"
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endchoice
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config WL_SECTOR_SIZE
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int
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2017-08-07 19:20:02 +00:00
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default 512 if WL_SECTOR_SIZE_512
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default 4096 if WL_SECTOR_SIZE_4096
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2017-07-20 10:09:39 +00:00
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choice WL_SECTOR_MODE
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bool "Sector store mode"
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2017-08-07 19:20:02 +00:00
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depends on WL_SECTOR_SIZE_512
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2017-08-07 19:22:42 +00:00
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default WL_SECTOR_MODE_SAFE
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2017-07-20 10:09:39 +00:00
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help
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2017-08-07 19:20:02 +00:00
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Specify the mode to store data into flash:
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- In Performance mode a data will be stored to the RAM and then
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stored back to the flash. Compared to the Safety mode, this operation is
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faster, but if power will be lost when erase sector operation is in
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progress, then the data from complete flash device sector will be lost.
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- In Safety mode data from complete flash device sector will be read from
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flash, modified, and then stored back to flash.
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Compared to the Performance mode, this operation is slower, but if
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power is lost during erase sector operation, then the data from full
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flash device sector will not be lost.
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2017-07-20 10:09:39 +00:00
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config WL_SECTOR_MODE_PERF
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bool "Perfomance"
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config WL_SECTOR_MODE_SAFE
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bool "Safety"
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endchoice
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config WL_SECTOR_MODE
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int
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default 0 if WL_SECTOR_MODE_PERF
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default 1 if WL_SECTOR_MODE_SAFE
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endmenu
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