Trait embedded_storage::nor_flash::MultiwriteNorFlash[−][src]

pub trait MultiwriteNorFlash: NorFlash { }
Expand description

Marker trait for NorFlash relaxing the restrictions on write.

Writes to the same word twice are now allowed. The result is the logical AND of the previous data and the written data. That is, it is only possible to change 1 bits to 0 bits.

If power is lost during write:

  • Bits that were 1 on flash and are written to 1 are guaranteed to stay as 1
  • Bits that were 1 on flash and are written to 0 are undefined
  • Bits that were 0 on flash are guaranteed to stay as 0
  • Rest of the bits in the page are guaranteed to be unchanged

Implementors