Added s25fs device - Githubissues

eblot / pyspiflash

SPI data flash device drivers (pure Python)

MIT License

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Added s25fs device #28

Open ramonaerne opened 1 year ago

ramonaerne commented 1 year ago

Added s25fs device

This is almost identical to the s25fl devices with the following exceptions

sector size is 256K not 64K
subsector (4K) erase is only possible in the parameter section which is the low 32K or high 32K of the device
some workaround is need in case a sector overlapping the parameter section is selected as we additionally need to erase the param section

To achieve this

erase is overwritten and erases the param section before doing a sector erase that overlaps the param section
can_erase is overwritten to check if an erase is requested in the param section otherwise only sector erases are allowed