Difference between revisions of "STM32 W25Qxx LittleFS"
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(Created page with "Category:CCategory:STM32 DevelopmentCategory:STM32 HALCategory:STM32CubeMXCategory:STM32CubeIdeCategory:EmbeddedCategory:STM32{{metadesc|Running Li...") |
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[[Category:C]][[Category:STM32 Development]][[Category:STM32 HAL]][[Category:STM32CubeMX]][[Category:STM32CubeIde]][[Category:Embedded]][[Category:STM32]]{{metadesc|Running LittleFS on W25Qxx Serial Flash on STM32}} | [[Category:C]][[Category:STM32 Development]][[Category:STM32 HAL]][[Category:STM32CubeMX]][[Category:STM32CubeIde]][[Category:Embedded]][[Category:STM32]]{{metadesc|Running LittleFS on W25Qxx Serial Flash on STM32}} | ||
| + | While working on [[STM32 W25Qxx]] I briefly experimented with getting FATFS up and running on the flash device. I quickly realised that this is a really poor idea. The problem is that [[W25Qxx]] flash devices has got a limited number of writes. FATFS works on some fixed tables and these tables will be updated on each file write. A typical [[W25Qxx]] got a number of guaranteed writes around 100000. If you imagine a system that update a file every second, this could mean that sector will wear out in < 2 days. | ||
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== Miscellaneous Links == | == Miscellaneous Links == | ||
Revision as of 09:15, 24 March 2022
While working on STM32 W25Qxx I briefly experimented with getting FATFS up and running on the flash device. I quickly realised that this is a really poor idea. The problem is that W25Qxx flash devices has got a limited number of writes. FATFS works on some fixed tables and these tables will be updated on each file write. A typical W25Qxx got a number of guaranteed writes around 100000. If you imagine a system that update a file every second, this could mean that sector will wear out in < 2 days.