Struct SfcDriver 

pub struct SfcDriver<'d> { /* private fields */ }

SFC driver.

Implementations

impl<'d> SfcDriver<'d>

pub fn new(sfc: SfcCfg<'d>) -> Self

Create a new SFC driver.

pub fn configure_global( &mut self, spi_mode: FlashSpiMode, addr_mode: AddressMode, read_delay: ReadDelay, write_protect: bool, )

Configure the global SFC settings.

pub fn configure_timing(&mut self, tshsl: u8, tcss: u8, tcsh: u8)

Configure the SFC timing parameters.

• tshsl — Inter-operation delay: (tshsl + 2) clock cycles
• tcss — CS setup time: (tcss + 1) clock cycles
• tcsh — CS hold time: (tcsh + 1) clock cycles

pub fn configure_bus(&mut self, config: &BusConfig)

Configure the bus read/write parameters for memory-mapped access.

pub fn release_bus_reset(&mut self)

Release the SFC bus from soft reset.

pub fn hold_bus_reset(&mut self)

Hold the SFC bus in soft reset.

pub fn send_command( &mut self, instruction: u8, address: u32, address_enable: bool, )

Execute a flash command (no data phase).

• instruction — Flash operation code.
• address — Operation address (for commands with address phase).
• address_enable — Whether the command includes an address phase.

pub fn command_with_data( &mut self, instruction: u8, address: u32, write_data: &[u8], read: bool, ) -> Result<[u8; 64], SfcError>

Execute a flash command with data phase.

• instruction — Flash operation code.
• address — Operation address.
• write_data — Data to write (for write commands).
• read — true for read commands, false for write commands.

Returns the read data (up to 64 bytes) for read commands.

pub fn bus_dma_start( &mut self, mem_addr: u32, flash_addr: u32, length: u32, read: bool, )

Start a bus DMA transfer between flash and memory.

• mem_addr — Memory address (must be in valid range).
• flash_addr — Flash address.
• length — Number of bytes to transfer.
• read — true for flash-to-memory read, false for memory-to-flash write.

pub fn bus_dma_wait(&self)

Wait for bus DMA to complete.

pub fn dma_done(&self) -> bool

Check if the DMA transfer is complete.

pub fn command_done(&self) -> bool

Check if a flash command is complete.

pub fn clear_interrupts(&self)

Clear all SFC interrupts.

pub fn enable_interrupts(&mut self, cmd_done: bool, dma_done: bool)

Enable specific SFC interrupts.

• cmd_done — Command operation complete interrupt.
• dma_done — DMA transfer complete interrupt.

pub fn raw_interrupt_status(&self) -> (bool, bool)

Check raw interrupt status.

Returns (cmd_done_raw, dma_done_raw).

pub fn enable_aes_low_power(&mut self)

Enable AES low-power mode (for XIP encrypted execution).

pub fn disable_aes_low_power(&mut self)

Disable AES low-power mode.

pub fn set_iv_valid(&mut self)

Set AES IV valid flag.

pub fn read_aes_dfx(&self) -> u32

Read AES DFX information (for debugging).