[−][src]Trait spi_memory::Read

pub trait Read<Addr, SPI: Transfer<u8>, CS: OutputPin> {
    fn read(&mut self, addr: Addr, buf: &mut [u8]) -> Result<(), Error<SPI, CS>>;
}

A trait for reading operations from a memory chip.

Required methods

fn read(&mut self, addr: Addr, buf: &mut [u8]) -> Result<(), Error<SPI, CS>>

Reads bytes from a memory chip.

Parameters

  • addr: The address to start reading at.
  • buf: The buffer to read buf.len() bytes into.
Loading content...

Implementors

impl<SPI: Transfer<u8>, CS: OutputPin> Read<u32, SPI, CS> for Flash<SPI, CS>[src]

fn read(&mut self, addr: u32, buf: &mut [u8]) -> Result<(), Error<SPI, CS>>[src]

Reads flash contents into buf, starting at addr.

Note that addr is not fully decoded: Flash chips will typically only look at the lowest N bits needed to encode their size, which means that the contents are "mirrored" to addresses that are a multiple of the flash size. Only 24 bits of addr are transferred to the device in any case, limiting the maximum size of 25-series SPI flash chips to 16 MiB.

Parameters

  • addr: 24-bit address to start reading at.
  • buf: Destination buffer to fill.
Loading content...