Enum Voltage 

#[non_exhaustive]
pub enum Voltage {
    V1P8,
    V3P3,
}

SD-Card voltage

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

V1P8

(ESP32P4 only) Use 1.8V IO voltage for UHS-I speed This means the user has to provide an external LDO power supply or to enable and configure an internal LDO via the sdkconfig setting “SD/MMC Example Configuration -> SD power supply comes from internal LDO IO”

V3P3

Use 3.3V IO voltage for speeds below UHS-I The only supported conf for MCUs other than ESP32P4

Trait Implementations

impl Clone for Voltage

fn clone(&self) -> Voltage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Voltage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Voltage

fn default() -> Voltage

Returns the “default value” for a type.

impl PartialEq for Voltage

fn eq(&self, other: &Voltage) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Voltage

impl Eq for Voltage

impl StructuralPartialEq for Voltage