Serial Input-Output#

sl_sio_spi_event_t#

sl_sio_spi_event_t

SIO-SPI Events.

sl_sio_uart_event_t#

sl_sio_uart_event_t

SIO-UART Events.

sl_sio_spi_mode_t#

sl_sio_spi_mode_t

SIO-SPI modes configurations.

sl_sio_spi_bit_width_t#

sl_sio_spi_bit_width_t

SIO-SPI bit width configurations.

sl_sio_spi_msb_lsb_t#

sl_sio_spi_msb_lsb_t

SIO-SPI MSB/LSB first configurations.

sl_sio_spi_bit_length_t#

sl_sio_spi_bit_length_t

SIO-UART bit length configurations.

sl_sio_spi_parity_t#

sl_sio_spi_parity_t

SIO-UART parity configurations.

sl_sio_spi_stop_bit_t#

sl_sio_spi_stop_bit_t

SIO-UART stop bit configurations.

sl_sio_spi_config_t#

typedef stc_sio_spi_cfg_t sl_sio_spi_config_t

SIO-SPI configuration structure.

sl_sio_spi_xfer_config_t#

typedef stc_sio_spi_xfer_t sl_sio_spi_xfer_config_t

SIO-SPI Transfer structure.

sl_sio_i2s_config_t#

typedef stc_sio_i2s_config_t sl_sio_i2s_config_t

SIO-I2S configuration structure.

sl_sio_i2s_xfer_config_t#

typedef stc_sio_i2s_xfer_t sl_sio_i2s_xfer_config_t

SIO-I2S Transfer structure.

sl_sio_uart_config_t#

typedef stc_sio_uart_config_t sl_sio_uart_config_t

SIO-UART configuration structure.

sl_sio_i2s_callback_t#

typedef sio_i2s_func_ptr_t sl_sio_i2s_callback_t

SIO-I2S callback function pointer.

sl_sio_spi_callback_t#

typedef sio_Spi_func_ptr_t sl_sio_spi_callback_t

SIO-SPI callback function pointer.

sl_sio_uart_callback_t#

typedef sio_Uart_func_ptr_t sl_sio_uart_callback_t

SIO_UART callback function pointer.

sl_sio_i2c_config_t#

typedef stc_sio_i2c_config_t sl_sio_i2c_config_t

SIO-I2C configuration structure.

sl_si91x_sio_init#

sl_status_t sl_si91x_sio_init (void )

Initialize the SIO module.

It initializes the SIO GPIO's and enables the SIO module clock. Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_FAIL (0x0001) - Fail, SIO initialization failed

  • SL_STATUS_OK (0x0000) - Success, SIO initialization successful

sl_si91x_sio_spi_init#

sl_status_t sl_si91x_sio_spi_init (sl_sio_spi_config_t * configuration)

Initialize the SIO-SPI module.

It configures the SPI mode, bit length, bit order, SIO frequency, and the SIO channels for the SPI transfer lines.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0x0000) - Success, SPI initialization done properly

sl_si91x_sio_deinit#

void sl_si91x_sio_deinit (void )

This API is used to De-initialize SIO module.

Returns

• none

sl_si91x_sio_spi_pin_initialization#

sl_status_t sl_si91x_sio_spi_pin_initialization (sl_sio_spi_t * sio_spi_init)

Initialize SIO SPI pins and clock.

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer

sl_si91x_sio_uart_pin_initialization#

sl_status_t sl_si91x_sio_uart_pin_initialization (sl_sio_uart_t * sio_uart_init)

Initialize SIO UART pins and clock.

This holds the UART Tx, Rx pins configuration. Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer

sl_si91x_sio_i2c_pin_initialization#

sl_status_t sl_si91x_sio_i2c_pin_initialization (sl_sio_i2c_t * sio_i2c_init)

Initialize SIO I2C pins and clock.

This holds the I2C SDA, SCL pins configuration. Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer

sl_si91x_sio_spi_cs_assert#

sl_status_t sl_si91x_sio_spi_cs_assert (uint8_t chip_select_num)

Assert the SIO SPI chip select.

This tells peripheral that it should wake up and receive / send data and is also used when multiple peripherals are present to select the one you'd like to communicate with.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_spi_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0x0000) - Success

sl_si91x_sio_spi_cs_deassert#

sl_status_t sl_si91x_sio_spi_cs_deassert (uint8_t chip_select_num)

De-assert the SIO SPI chip select.

This is used to disable after the last byte is transmitted / received.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_spi_init()

  • sl_si91x_sio_spi_cs_assert()

  • sl_si91x_sio_spi_transfer()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0x0000) - Success

sl_si91x_sio_spi_register_event_callback#

sl_status_t sl_si91x_sio_spi_register_event_callback (sl_sio_spi_callback_t callback_event)

Register the user callback function.

It registers the callback, i.e., stores the callback function address and pass to the variable that is called in Interrupt Handler. If another callback is registered without unregistering previous callback then, it returns an error code, so it is mandatory to unregister the callback before registering another callback. It will returns error if any callback is already registered.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_spi_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK (0x0000) - Success

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_BUSY (0x0004) - Driver is busy

sl_si91x_sio_spi_unregister_event_callback#

void sl_si91x_sio_spi_unregister_event_callback (void )

Un-register the user callback function, i.e., clear the callback function address and disables IRQ handler.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_spi_init()

  • sl_si91x_sio_spi_register_event_callback()

Returns

• none

sl_si91x_sio_spi_transfer#

sl_status_t sl_si91x_sio_spi_transfer (sl_sio_spi_xfer_config_t * xfer_config)

Transfer the SIO SPI data.

It is used to make the SIO-SPI transfer in non-blocking mode.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_spi_init()

  • sl_si91x_sio_spi_cs_assert()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0x0000) - Success

sl_si91x_sio_get_version#

sl_sio_version_t sl_si91x_sio_get_version (void )

Get the SIO version.

It is used to get the release, SQA and DEV version of the SIO module. Returns

• returns structure of type sl_sio_version_t

sl_si91x_sio_uart_init#

sl_status_t sl_si91x_sio_uart_init (sl_sio_uart_config_t * configuration)

Initialize SIO-UART, i.e., set baud rate, parity, channel selection, stop bits, and data length.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0x0000) - Success, UART initialization done properly

sl_si91x_sio_uart_send#

sl_status_t sl_si91x_sio_uart_send (const void * buffer, uint16_t length)

Send the data over SIO-UART in non-blocking mode.

Transmit bytes from the buffer using an interrupt service. Will return immediately, but cannot be called again until the previous call has finished.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_uart_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0x0000) - Success

sl_si91x_sio_uart_send_blocking#

sl_status_t sl_si91x_sio_uart_send_blocking (const void * buffer, uint16_t length)

Send the data over SIO-UART in blocking mode.

Transmit bytes from the buffer using a blocking send byte function. Does not return until all bytes are sent.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_uart_init()

  • sl_si91x_sio_uart_send() (or) sl_si91x_sio_uart_send_blocking()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0x0000) - Success

sl_si91x_sio_uart_read#

sl_status_t sl_si91x_sio_uart_read (void * data_buffer, uint16_t num_bytes)

Read data from SIO-UART in non-blocking mode.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_uart_init()

  • sl_si91x_sio_uart_send() (or) sl_si91x_sio_uart_send_blocking()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0x0000) - Success

sl_si91x_sio_uart_read_blocking#

sl_status_t sl_si91x_sio_uart_read_blocking (void * data_buffer, uint16_t num_bytes)

Read data from UART in blocking mode.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_uart_init()

  • sl_si91x_sio_uart_send() (or)

  • sl_si91x_sio_uart_send_blocking()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0x0000) - Success

sl_si91x_sio_uart_register_event_callback#

sl_status_t sl_si91x_sio_uart_register_event_callback (sl_sio_uart_callback_t callback_event)

Register the user callback function.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_uart_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK (0x0000) - Success

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_BUSY (0x0004) - Driver is busy

sl_si91x_sio_i2c_write#

sl_status_t sl_si91x_sio_i2c_write (stc_sio_i2c_config_t * configuration, uint8_t address, uint8_t * data, uint16_t length)

Write data using SIO-I2C.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_i2c_generate_start()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_i2c_read#

sl_status_t sl_si91x_sio_i2c_read (stc_sio_i2c_config_t * configuration, uint8_t address, uint8_t * data, uint16_t length)

Read data using SIO-I2C.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_i2c_generate_start()

  • sl_si91x_sio_i2c_write() (or)

  • sl_si91x_sio_i2c_transfer()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_i2c_transfer#

sl_status_t sl_si91x_sio_i2c_transfer (stc_sio_i2c_config_t * configuration, uint8_t address, uint8_t * tx_buffer, uint16_t tx_length, uint8_t * rx_buffer, uint16_t rx_length)

Transfer data using SIO-I2C.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_i2c_generate_start()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_i2c_generate_start#

void sl_si91x_sio_i2c_generate_start (void )

Generate I2C start in SIO.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• none

sl_si91x_sio_i2c_generate_stop#

void sl_si91x_sio_i2c_generate_stop (void )

Generate I2C stop in SIO.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_i2c_generate_start()

  • sl_si91x_sio_i2c_write() (or)

  • sl_si91x_sio_i2c_transfer()

Returns

• none

sl_si91x_sio_uart_unregister_event_callback#

void sl_si91x_sio_uart_unregister_event_callback (void )

Un-register the user callback function.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_uart_init()

  • sl_si91x_sio_uart_register_event_callback()

Returns

• none

sl_si91x_sio_uart_rx_done#

void sl_si91x_sio_uart_rx_done (void )

Used when UART receive is done.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_uart_init()

  • sl_si91x_sio_uart_send()

  • sl_si91x_sio_uart_read()

Returns

• none

sl_si91x_sio_configure_interrupt#

sl_status_t sl_si91x_sio_configure_interrupt (en_sio_channels_t channel, interrupt_flag_t flag)

Configure pin detection mode to be considered for GPIO interrupt.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_match_pattern#

sl_status_t sl_si91x_sio_match_pattern (en_sio_channels_t channel, pattern_match_t pattern, uint8_t slice, uint32_t slice_pattern)

Match the pattern with data to be detected.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_shift_clock#

sl_status_t sl_si91x_sio_shift_clock (uint32_t divider, en_sio_channels_t channel)

Generate the shift clock.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is a null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_select_clock#

sl_status_t sl_si91x_sio_select_clock (en_sio_channels_t channel, clock_type_t clock)

Select SIO peripheral clock.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_uart_init()

  • sl_si91x_sio_uart_register_event_callback()

  • sl_si91x_sio_uart_send()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_position_counter#

sl_status_t sl_si91x_sio_position_counter (en_sio_channels_t channel, uint32_t data_shift)

Shift the number of bits.

Number of shifts to happen before reloading the shift register with data/pausing the operation. i.e. value to be set = (total no. of valid bits in shift register/ number of bits per shift) – 1

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_control_flow#

sl_status_t sl_si91x_sio_control_flow (en_sio_channels_t channel, flow_control_t flow_control)

Enable/disable the flow control bit.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_reverse_load#

sl_status_t sl_si91x_sio_reverse_load (en_sio_channels_t channel, reverse_load_t reverse)

Load data to buffer in reverse order.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_set_interrupt#

sl_status_t sl_si91x_sio_set_interrupt (en_sio_channels_t channel)

Enable the common swap interrupt.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_clear_interrupt#

sl_status_t sl_si91x_sio_clear_interrupt (en_sio_channels_t channel)

Disable the common swap interrupt.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_i2c_generate_start()

  • sl_si91x_sio_i2c_write() (or)

  • sl_si91x_sio_i2c_transfer()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_mask_interrupt#

sl_status_t sl_si91x_sio_mask_interrupt (en_sio_channels_t channel)

Mask the common swap interrupt.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_unmask_interrupt#

sl_status_t sl_si91x_sio_unmask_interrupt (en_sio_channels_t channel)

Unmask the common swap interrupt.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_get_interrupt_status#

uint32_t sl_si91x_sio_get_interrupt_status (void )

Read the common swap interrupt status.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns interrupt status

sl_si91x_sio_set_shift_interrupt#

sl_status_t sl_si91x_sio_set_shift_interrupt (en_sio_channels_t channel)

Enable the common shift interrupt.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_clear_shift_interrupt#

sl_status_t sl_si91x_sio_clear_shift_interrupt (en_sio_channels_t channel)

Disable the common shift interrupt.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_mask_shift_interrupt#

sl_status_t sl_si91x_sio_mask_shift_interrupt (en_sio_channels_t channel)

Mask the common shift interrupt.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_unmask_shift_interrupt#

sl_status_t sl_si91x_sio_unmask_shift_interrupt (en_sio_channels_t channel)

Unmask the common shift interrupt.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_shift_interrupt_status#

uint32_t sl_si91x_sio_shift_interrupt_status (void )

Read the common shift interrupt status.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns shift interrupt status

sl_si91x_sio_edge_select#

sl_status_t sl_si91x_sio_edge_select (en_sio_channels_t channel, edge_select_t edge_sel)

Select edge of the clock cycle for sampling bits.

• Pre-conditions:

  • sl_si91x_sio_init()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

sl_si91x_sio_read_buffer#

uint32_t sl_si91x_sio_read_buffer (en_sio_channels_t channel)

Read SIO buffer register.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_uart_init()

  • sl_si91x_sio_uart_register_event_callback()

  • sl_si91x_sio_uart_send()

Returns

• returns data from buffer

sl_si91x_sio_write_buffer#

sl_status_t sl_si91x_sio_write_buffer (en_sio_channels_t channel, uint32_t data)

Write into SIO buffer register.

• Pre-conditions:

  • sl_si91x_sio_init()

  • sl_si91x_sio_uart_init()

  • sl_si91x_sio_uart_register_event_callback()

  • sl_si91x_sio_uart_send()

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER (0x0021) - The parameter is an invalid argument

  • SL_STATUS_NULL_POINTER (0x0022n) - The parameter is null pointer

  • SL_STATUS_OK (0X000) - Success

SL_SIO_CH_0#

#define SL_SIO_CH_0

0

SIO-SPI channel 0.

SL_SIO_CH_1#

#define SL_SIO_CH_1

1

SIO-SPI channel 1.

SL_SIO_CH_2#

#define SL_SIO_CH_2

2

SIO-SPI channel 2.

SL_SIO_CH_3#

#define SL_SIO_CH_3

3

SIO-SPI channel 3.

SL_SIO_CH_4#

#define SL_SIO_CH_4

4

SIO-SPI channel 4.

SL_SIO_CH_5#

#define SL_SIO_CH_5

5

SIO-SPI channel 5.

SL_SIO_CH_6#

#define SL_SIO_CH_6

6

SIO-SPI channel 6.

SL_SIO_CH_7#

#define SL_SIO_CH_7

7

SIO-SPI channel 7.