34.3.2.9 spi_m_os_transfer

Perform the SPI data transfer (TX and RX) using RTOS.

int32_t spi_m_os_transfer(
    struct spi_m_os_descriptor *const spi,
    uint8_t const * txbuf,
    uint8_t *const rxbuf,
    const uint16_t length
)

Log the TX and RX buffers and transfer them in background. It blocks task/thread until the transfer done.

Parameters

spi

Type: struct spi_m_os_descriptor Struct *const

Pointer to the HAL SPI instance.

txbuf

Type: uint8_t const *

Pointer to the transfer information (spi_transfer).

rxbuf

Type: uint8_t *const

Pointer to the receiver information (spi_receive).

length

Type: const uint16_t

SPI transfer data length.

Returns

Type: int32_t

Operation status.

ERR_NONE

Success.

ERR_BUSY

Busy.