80 lines
3.5 KiB
Text
80 lines
3.5 KiB
Text
menu "SPI Flash driver"
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config SPI_FLASH_VERIFY_WRITE
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bool "Verify SPI flash writes"
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default n
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help
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If this option is enabled, any time SPI flash is written then the data will be read
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back and verified. This can catch hardware problems with SPI flash, or flash which
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was not erased before verification.
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config SPI_FLASH_LOG_FAILED_WRITE
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bool "Log errors if verification fails"
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depends on SPI_FLASH_VERIFY_WRITE
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default n
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help
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If this option is enabled, if SPI flash write verification fails then a log error line
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will be written with the address, expected & actual values. This can be useful when
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debugging hardware SPI flash problems.
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config SPI_FLASH_WARN_SETTING_ZERO_TO_ONE
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bool "Log warning if writing zero bits to ones"
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depends on SPI_FLASH_VERIFY_WRITE
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default n
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help
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If this option is enabled, any SPI flash write which tries to set zero bits in the flash to
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ones will log a warning. Such writes will not result in the requested data appearing identically
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in flash once written, as SPI NOR flash can only set bits to one when an entire sector is erased.
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After erasing, individual bits can only be written from one to zero.
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Note that some software (such as SPIFFS) which is aware of SPI NOR flash may write one bits as an
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optimisation, relying on the data in flash becoming a bitwise AND of the new data and any existing data.
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Such software will log spurious warnings if this option is enabled.
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config SPI_FLASH_ENABLE_COUNTERS
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bool "Enable operation counters"
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default 0
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help
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This option enables the following APIs:
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- spi_flash_reset_counters
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- spi_flash_dump_counters
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- spi_flash_get_counters
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These APIs may be used to collect performance data for spi_flash APIs
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and to help understand behaviour of libraries which use SPI flash.
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config SPI_FLASH_ROM_DRIVER_PATCH
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bool "Enable SPI flash ROM driver patched functions"
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default y
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help
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Enable this flag to use patched versions of SPI flash ROM driver functions.
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This option is needed to write to flash on ESP32-D2WD, and any configuration
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where external SPI flash is connected to non-default pins.
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choice SPI_FLASH_DANGEROUS_WRITE
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bool "Writing to dangerous flash regions"
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default SPI_FLASH_DANGEROUS_WRITE_ABORTS
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help
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SPI flash APIs can optionally abort or return a failure code
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if erasing or writing addresses that fall at the beginning
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of flash (covering the bootloader and partition table) or that
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overlap the app partition that contains the running app.
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It is not recommended to ever write to these regions from an IDF app,
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and this check prevents logic errors or corrupted firmware memory from
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damaging these regions.
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Note that this feature *does not* check calls to the esp_rom_xxx SPI flash
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ROM functions. These functions should not be called directly from IDF
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applications.
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config SPI_FLASH_DANGEROUS_WRITE_ABORTS
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bool "Aborts"
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config SPI_FLASH_DANGEROUS_WRITE_FAILS
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bool "Fails"
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config SPI_FLASH_DANGEROUS_WRITE_ALLOWED
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bool "Allowed"
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endchoice
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endmenu
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