Expand description
§W25 Flash driver
This is a generic async driver for the W25 flash chips from Winbond.
Supported series:
- Q
- X
More series support is welcomed!
Defmt is also supported through the defmt feature.
This crate is adopted from https://github.com/tweedegolf/w25q32jv
§TODO
- Fast read support. So far there’s only support for the normal read, so don’t use a SPI speed of > 50Mhz
§Changelog
§Unreleased
§0.8.0 2026-09-20
- dont unwrap when we can return the error - #6
- Yield in the busy loops to avoid executor starvation - #8
- Breaking: Await idle in constructor - #9
§0.7.2 2026-08-14
- Fixed autodetect issue for W25[qx]512.
§0.7.1 2026-08-11
- Added fetching JEDEC ID & constructor which autodetects the chip capacity.
§0.7.0 2026-07-07
- Added a no-pin constructor
- breaking: Removed the pin error variant from the error enum
§0.6.0 2025-07-07
- Continued from https://github.com/tweedegolf/w25q32jv 0.5.1
- Driver and driver struct has been renamed to W25
- Series is now a generic so the driver can support multiple series
- The capacity is now given at runtime so we don’t need feature flags
Structs§
Enums§
- Error
- Custom error type for the various errors that can be thrown by driver. Can be converted into a NorFlashError.
- Init
Error - Errors that can occur during autodetect initialization.
- Major
Device Id - Major byte of the device identification (ID7-ID0) denoting chip capacity.