LSM6DSO

ST LSM6DSO accelerometer driver board configuration. More...

Data Structures
struct	LSM6DSOState
	LSM6DSO driver state, owned by the driver. More...
struct	LSM6DSOConfig
	LSM6DSO board configuration. More...

Macros
#define	LSM6DSO_SAMPLE_SIZE_BYTES   6
	Accelerometer sample size in bytes (X, Y, Z, 16 bits each).
#define	LSM6DSO_FIFO_WORD_SIZE_BYTES   7
	FIFO word size in bytes as read from FIFO_DATA_OUT (tag byte plus sample).
#define	LSM6DSO_FIFO_THRESHOLD   128
	FIFO watermark in samples (the FIFO holds up to 512).
#define	LSM6DSO_FIFO_SIZE   LSM6DSO_FIFO_THRESHOLD
	Read buffer capacity in samples, sized to the watermark.

Detailed Description

ST LSM6DSO accelerometer driver board configuration.

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Data Structure Documentation

LSM6DSOState

struct LSM6DSOState

LSM6DSO driver state, owned by the driver.

Data Fields
bool	double_tap_detection_enabled	Double tap detection requested.
bool	initialized	Driver initialized.
uint32_t	int1_period_ms	Expected INT1 period in milliseconds.
bool	int1_requeued	The INT1 servicing pass was requeued while the pad stayed high.
RegularTimerInfo	int1_wdt_timer	Watchdog timer detecting a stalled INT1 stream.
RtcTicks	last_fifo_read_tick	Time of the last FIFO read.
uint32_t	num_recoveries	Number of stream recoveries performed.
uint16_t	num_samples	Samples per FIFO batch requested by the subscribers, 0 when not streaming.
uint8_t	raw_sample_buf[DCACHE_ROUND_UP(LSM6DSO_FIFO_SIZE *LSM6DSO_FIFO_WORD_SIZE_BYTES)]	Raw FIFO read buffer, filled with i2c_read_register_block_dma().
bool	recovery_pending	A stream recovery is queued.
bool	rotated	Watch mounted rotated 180 degrees: X and Y are inverted.
uint32_t	sampling_interval_us	Sampling interval in microseconds, 0 when not sampling.
bool	shake_detection_enabled	Shake detection requested.
uint8_t	shake_stuck_passes	Consecutive watchdog passes with INT1 stuck high in shake-only mode.
uint8_t	wk_ths_curr	Current wake-up (shake) threshold register value.
bool	wu_active	Wake-up condition currently asserted, to report a shake once per assertion.

LSM6DSOConfig

struct LSM6DSOConfig

LSM6DSO board configuration.

Data Fields
int8_t	axis_dir[3]	Direction of each watch axis: 1 or -1.
uint8_t	axis_map[3]	Sensor axis feeding each watch axis (0: X, 1: Y, 2: Z).
I2CSlavePort	i2c	I2C device.
ExtiConfig	int1	INT1 interrupt line.
InputConfig	int1_in	INT1 input, to read back the pad level.
LSM6DSOState *	state	Driver state.

Macro Definition Documentation

LSM6DSO_FIFO_SIZE

#define LSM6DSO_FIFO_SIZE   LSM6DSO_FIFO_THRESHOLD

Read buffer capacity in samples, sized to the watermark.

LSM6DSO_FIFO_THRESHOLD

#define LSM6DSO_FIFO_THRESHOLD   128

FIFO watermark in samples (the FIFO holds up to 512).

LSM6DSO_FIFO_WORD_SIZE_BYTES

#define LSM6DSO_FIFO_WORD_SIZE_BYTES   7

FIFO word size in bytes as read from FIFO_DATA_OUT (tag byte plus sample).

LSM6DSO_SAMPLE_SIZE_BYTES

#define LSM6DSO_SAMPLE_SIZE_BYTES   6

Accelerometer sample size in bytes (X, Y, Z, 16 bits each).