Struct esp_idf_hal::sys::spi_slave_interface_config_t

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#[repr(C)]
pub struct spi_slave_interface_config_t { pub spics_io_num: i32, pub flags: u32, pub queue_size: i32, pub mode: u8, pub post_setup_cb: Option<unsafe extern "C" fn(_: *mut spi_slave_transaction_t)>, pub post_trans_cb: Option<unsafe extern "C" fn(_: *mut spi_slave_transaction_t)>, }
Expand description

@brief This is a configuration for a SPI host acting as a slave device.

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§spics_io_num: i32

< CS GPIO pin for this device

§flags: u32

< Bitwise OR of SPI_SLAVE_* flags

§queue_size: i32

< Transaction queue size. This sets how many transactions can be ‘in the air’ (queued using spi_slave_queue_trans but not yet finished using spi_slave_get_trans_result) at the same time

§mode: u8

< SPI mode, representing a pair of (CPOL, CPHA) configuration:

  • 0: (0, 0)
  • 1: (0, 1)
  • 2: (1, 0)
  • 3: (1, 1)
§post_setup_cb: Option<unsafe extern "C" fn(_: *mut spi_slave_transaction_t)>

< Callback called after the SPI registers are loaded with new data.

This callback is called within interrupt context should be in IRAM for best performance, see “Transferring Speed” section in the SPI Master documentation for full details. If not, the callback may crash during flash operation when the driver is initialized with ESP_INTR_FLAG_IRAM.

§post_trans_cb: Option<unsafe extern "C" fn(_: *mut spi_slave_transaction_t)>

< Callback called after a transaction is done.

This callback is called within interrupt context should be in IRAM for best performance, see “Transferring Speed” section in the SPI Master documentation for full details. If not, the callback may crash during flash operation when the driver is initialized with ESP_INTR_FLAG_IRAM.

Trait Implementations§

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impl Clone for spi_slave_interface_config_t

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fn clone(&self) -> spi_slave_interface_config_t

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for spi_slave_interface_config_t

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

Formats the value using the given formatter. Read more
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impl Default for spi_slave_interface_config_t

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fn default() -> spi_slave_interface_config_t

Returns the “default value” for a type. Read more
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impl Copy for spi_slave_interface_config_t

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unsafe fn clone_to_uninit(&self, dst: *mut T)

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