Struct Config

pub struct Config {

    pub fifo_threshold: FIFOThresholdLevel,
    pub memory_type: MemoryType,
    pub device_size: MemorySize,
    pub chip_select_high_time: ChipSelectHighTime,
    pub free_running_clock: bool,
    pub clock_mode: bool,
    pub wrap_size: WrapSize,
    pub clock_prescaler: u8,
    pub sample_shifting: bool,
    pub delay_hold_quarter_cycle: bool,
    pub chip_select_boundary: u8,
    pub max_transfer: u8,
    pub refresh: u32,
}

XPSI driver config.

Fields

fifo_threshold: FIFOThresholdLevel

Fifo threshold used by the peripheral to generate the interrupt indicating data or space is available in the FIFO

memory_type: MemoryType

Indicates the type of external device connected

device_size: MemorySize

Defines the size of the external device connected to the XSPI corresponding to the number of address bits required to access the device

chip_select_high_time: ChipSelectHighTime

Sets the minimum number of clock cycles that the chip select signal must be held high between commands

free_running_clock: bool

Enables the free running clock

clock_mode: bool

Sets the clock level when the device is not selected

wrap_size: WrapSize

Indicates the wrap size corresponding to the external device configuration

clock_prescaler: u8

Specified the prescaler factor used for generating the external clock based on the AHB clock. 0 = Fkernel, 1 = Fkernel/2, 2 = Fkernel/3 etc.

sample_shifting: bool

Allows the delay of 1/2 cycle the data sampling to account for external signal delays

delay_hold_quarter_cycle: bool

Allows hold to 1/4 cycle the data

chip_select_boundary: u8

Enables the transaction boundary feature and defines the boundary to release the chip select

max_transfer: u8

Enables communication regulation feature. Chip select is released when the other XSpi requests access to the bus

refresh: u32

Enables the refresh feature, chip select is released every refresh + 1 clock cycles

Trait Implementations

impl Clone for Config

fn clone(&self) -> Config

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for Config

fn default() -> Self

Returns the “default value” for a type.

impl Copy for Config