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spi_slave_interface_config_t struct
This is a configuration for a SPI host acting as a slave device.
Syntax
typedef struct
{
int spics_io_num;
uint32_t flags;
int queue_size;
uint8_t mode;
slave_transaction_cb_t post_setup_cb;
slave_transaction_cb_t post_trans_cb;
} spi_slave_interface_config_t;
Fields
Field
Declared as
Description
uint8_t
SPI mode, representing a pair of (CPOL, CPHA) configuration: - 0: (0, 0) - 1: (0, 1) - 2: (1, 0) - 3: (1, 1).
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.
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.