Device driver for InvenSense ITG320X 3-axis gyroscope. More...

Detailed Description

Device driver for InvenSense ITG320X 3-axis gyroscope.

Definition in file itg320x.h.

#include <stdbool.h>
#include <stdint.h>
#include "periph/gpio.h"
#include "periph/i2c.h"

Include dependency graph for itg320x.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	itg320x_data_t
	Angular rate values in tenths of a degree per second. More...

struct	itg320x_raw_data_t
	Raw data set as two complements. More...

struct	itg320x_params_t
	ITG320X device initialization parameters. More...

struct	itg320x_t
	ITG320X sensor device data structure type. More...

Macros
#define	ITG320X_ID (0x68)
	ITG320X chip id defined in Who Am I.

Typedefs
typedef void(*	itg320x_drdy_int_cb_t) (void *)
	ITG320X data ready interrupt (DRDY) callback function type.

Enumerations
enum	itg320x_error_codes_t { ITG320X_OK = 0 , ITG320X_ERROR_I2C = -1 , ITG320X_ERROR_WRONG_ID = -2 , ITG320X_ERROR_NO_DATA = -3 , ITG320X_ERROR_RAW_DATA = -4 }
	Named return values. More...

enum	itg320x_lpf_bw_t { ITG320X_LPF_BW_256 = 0 , ITG320X_LPF_BW_188 , ITG320X_LPF_BW_98 , ITG320X_LPF_BW_42 , ITG320X_LPF_BW_20 , ITG320X_LPF_BW_10 , ITG320X_LPF_BW_5 }
	Low pass filter bandwidth. More...

enum	itg320x_int_level_t { ITG320X_INT_HIGH = 0x00 , ITG320X_INT_LOW = 0x80 }
	Logic level for INT output pin (ITG320X_REG_INT_CFG<7>) More...

enum	itg320x_int_drive_t { ITG320X_INT_PUSH_PULL = 0x00 , ITG320X_INT_OPEN_DRAIN = 0x40 }
	Drive type for INT output pin (ITG320X_REG_INT_CFG<6>) More...

enum	itg320x_clk_sel_t { ITG320X_CLK_INTERNAL = 0 , ITG320X_CLK_PLL_X_GYRO , ITG320X_CLK_PLL_Y_GYRO , ITG320X_CLK_PLL_Z_GYRO , ITG320X_CLK_PLL_32K , ITG320X_CLK_PLL_19M }
	Clock source selection (ITG320X_REG_PWR_MGM<2:0>) More...

Functions
int	itg320x_init (itg320x_t dev, const itg320x_params_t params)
	Initialize the ITG320X sensor device.

int	itg320x_init_int (const itg320x_t dev, itg320x_drdy_int_cb_t cb, void arg)
	Initialize and activate the DRDY interrupt of ITG320X sensor device.

int	itg320x_data_ready (const itg320x_t *dev)
	Data-ready status function.

int	itg320x_read (const itg320x_t dev, itg320x_data_t data)
	Read one sample of angular rates in tenths of a degree per second.

int	itg320x_read_raw (const itg320x_t dev, itg320x_raw_data_t raw)
	Read one sample of raw sensor data as 16 bit two's complements.

int	itg320x_read_temp (const itg320x_t dev, int16_t temp)
	Read temperature in tenths of a degree Celsius.

int	itg320x_power_down (itg320x_t *dev)
	Power down the sensor.

int	itg320x_power_up (itg320x_t *dev)
	Power up the sensor.

Data Structures