APIs to access RF module

Functions
at86rfx_retval_t	at86rfx_init (void)
	Initializes the transceiver interface. More...
void	at86rfx_task (void)
	RF task handling. More...
void	at86rfx_tx_frame (uint8_t *frame_tx)
	Transmits the frame. More...
uint8_t	pal_trx_bit_read (uint8_t addr, uint8_t mask, uint8_t pos)
	Subregister read. More...
void	pal_trx_bit_write (uint8_t reg_addr, uint8_t mask, uint8_t pos, uint8_t new_value)
	Subregister write. More...
void	pal_trx_frame_read (uint8_t *data, uint8_t length)
	Reads frame buffer of the transceiver. More...
void	pal_trx_frame_write (uint8_t *data, uint8_t length)
	Writes data into frame buffer of the transceiver. More...
void	pal_trx_init (void)
	Initializes the SPI and GPIO pins for transceiver access. More...
uint8_t	pal_trx_reg_read (uint8_t addr)
	Reads current value from a transceiver register. More...
void	pal_trx_reg_write (uint8_t addr, uint8_t data)
	Writes data into a transceiver register. More...

at86rfx_retval_t at86rfx_init

(

void

)

Initializes the transceiver interface.

This function initializes the transceiver interface.

References AT86RFX_FAILURE, AT86RFX_SUCCESS, CMD_RX_ON, CURRENT_CHANNEL_DEFAULT, ENABLE_TRX_IRQ, pal_trx_bit_write(), pal_trx_init(), pal_trx_reg_write(), RG_TRX_STATE, SR_CHANNEL, and tal_init().

Referenced by main(), and run_at86rfx_init_test().

void at86rfx_task

(

void

)

RF task handling.

This function

• Checks and calls back with received packet.
• Processes the TAL incoming frame queue.
• Calls the TAL state machine handling.

References at86rfx_frame_rx, at86rfx_rx_buffer, and AT86RFX_RX_NOTIFY.

Referenced by main().

void at86rfx_tx_frame

(

uint8_t *

frame_tx

)

Transmits the frame.

This function configures the transceiver in TX mode and transmits the frame

Parameters

[in]

frame_tx

Pointer to data to be transmitted

References DISABLE_TRX_IRQ, ENABLE_TRX_IRQ, LENGTH_FIELD_LEN, and pal_trx_frame_write().

Referenced by app_task(), at86rfx_tal_tx_status_cb(), and run_at86rfx_tx_test().

uint8_t pal_trx_bit_read	(	uint8_t	addr,
		uint8_t	mask,
		uint8_t	pos
	)

Subregister read.

Parameters

addr	Offset of the register
mask	Bit mask of the subregister
pos	Bit position of the subregister

Returns

Data Value of the read bit(s)

References pal_trx_reg_read().

void pal_trx_bit_write	(	uint8_t	reg_addr,
		uint8_t	mask,
		uint8_t	pos,
		uint8_t	new_value
	)

Subregister write.

Parameters

[in]	reg_addr	Offset of the register
[in]	mask	Bit mask of the subregister
[in]	pos	Bit position of the subregister
[out]	new_value	Data, which is muxed into the register

References pal_trx_reg_read(), and pal_trx_reg_write().

Referenced by at86rfx_init().

void pal_trx_frame_read	(	uint8_t *	data,
		uint8_t	length
	)

Reads frame buffer of the transceiver.

This function reads the frame buffer of the transceiver.

Parameters

[out]	data	Pointer to the location to store frame
[in]	length	Number of bytes to be read from the frame buffer.

References ENTER_CRITICAL_REGION, LEAVE_CRITICAL_REGION, spi_deselect_device(), spi_read_packet(), spi_select_device(), spi_write_packet(), temp, and TRX_CMD_FR.

void pal_trx_frame_write	(	uint8_t *	data,
		uint8_t	length
	)

Writes data into frame buffer of the transceiver.

This function writes data into the frame buffer of the transceiver

Parameters

[in]	data	Pointer to data to be written into frame buffer
[in]	length	Number of bytes to be written into frame buffer

References ENTER_CRITICAL_REGION, LEAVE_CRITICAL_REGION, spi_deselect_device(), spi_select_device(), spi_write_packet(), temp, and TRX_CMD_FW.

Referenced by at86rfx_tx_frame().

void pal_trx_init

(

void

)

Initializes the SPI and GPIO pins for transceiver access.

This function configures the SPI in master mode and interrupt capability of GPIO pin to handle the interrupts from transceiver

References AT86RFX_SPI_BAUDRATE, EXT_INT, EXT_INT_ISR_PRIORITY, gpio_clear_pin_interrupt_flag(), gpio_configure_pin(), GPIO_DIR_OUTPUT, gpio_enable_pin_interrupt(), GPIO_INIT_HIGH, GPIO_RISING_EDGE, irq_register_handler, SLP_TR, spi_deselect_device(), spi_enable(), spi_master_init(), spi_master_setup_device(), SPI_MODE_0, and TRX_RST.

Referenced by at86rfx_init().

uint8_t pal_trx_reg_read

(

uint8_t

addr

)

Reads current value from a transceiver register.

This function reads the current value from a transceiver register.

Parameters

addr	Specifies the address of the trx register from which the data shall be read

Returns

value of the register read

References ENTER_CRITICAL_REGION, LEAVE_CRITICAL_REGION, READ_ACCESS_COMMAND, spi_deselect_device(), spi_read_packet(), spi_select_device(), and spi_write_packet().

Referenced by pal_trx_bit_read(), pal_trx_bit_write(), and run_at86rfx_reg_access_test().

void pal_trx_reg_write	(	uint8_t	addr,
		uint8_t	data
	)

Writes data into a transceiver register.

This function writes a value into transceiver register.

Parameters

addr	Address of the trx register
data	Data to be written to trx register

References ENTER_CRITICAL_REGION, LEAVE_CRITICAL_REGION, spi_deselect_device(), spi_select_device(), spi_write_packet(), and WRITE_ACCESS_COMMAND.

Referenced by at86rfx_init(), pal_trx_bit_write(), and run_at86rfx_reg_access_test().