如何正确初始化ADXL345
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发布时间：2022-04-22 09:54
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时间：2023-10-09 11:05
#ifndef __XL345
#define __XL345 */
#define XL345_SLAVE_ADDR 0x1d
#define XL345_ALT_ADDR 0x53
/* addtional I2C defines for communications functions that need the
address shifted with the read/write bit appended */
#define XL345_SLAVE_READ XL345_SLAVE_ADDR << 1 | 0x01
#define XL345_SLAVE_WRITE XL345_SLAVE_ADDR << 1 | 0x00
#define XL345_ALT_READ XL345_ALT_ADDR << 1 | 0x01
#define XL345_ALT_WRITE XL345_ALT_ADDR << 1 | 0x00
/* ------- Register names ------- */
#define XL345_DEVID 0x00
#define XL345_RESERVED1 0x01
#define XL345_THRESH_TAP 0x1d
#define XL345_OFSX 0x1e
#define XL345_OFSY 0x1f
#define XL345_OFSZ 0x20
#define XL345_DUR 0x21
#define XL345_LATENT 0x22
#define XL345_WINDOW 0x23
#define XL345_THRESH_ACT 0x24
#define XL345_THRESH_INACT 0x25
#define XL345_TIME_INACT 0x26
#define XL345_ACT_INACT_CTL 0x27
#define XL345_THRESH_FF 0x28
#define XL345_TIME_FF 0x29
#define XL345_TAP_AXES 0x2a
#define XL345_ACT_TAP_STATUS 0x2b
#define XL345_BW_RATE 0x2c
#define XL345_POWER_CTL 0x2d
#define XL345_INT_ENABLE 0x2e
#define XL345_INT_MAP 0x2f
#define XL345_INT_SOURCE 0x30
#define XL345_DATA_FORMAT 0x31
#define XL345_DATAX0 0x32
#define XL345_DATAX1 0x33
#define XL345_DATAY0 0x34
#define XL345_DATAY1 0x35
#define XL345_DATAZ0 0x36
#define XL345_DATAZ1 0x37
#define XL345_FIFO_CTL 0x38
#define XL345_FIFO_STATUS 0x39
/*----------------------------------------------------------------------
Bit field definitions and register values
*/
#define XL345_ID 0xe5
/* Reserved soft reset value */
#define XL345_SOFT_RESET 0x52
/* Bit values in ACT_INACT_CTL */
#define XL345_INACT_Z_ENABLE 0x01
#define XL345_INACT_Z_DISABLE 0x00
#define XL345_INACT_Y_ENABLE 0x02
#define XL345_INACT_Y_DISABLE 0x00
#define XL345_INACT_X_ENABLE 0x04
#define XL345_INACT_X_DISABLE 0x00
#define XL345_INACT_AC 0x08
#define XL345_INACT_DC 0x00
#define XL345_ACT_Z_ENABLE 0x10
#define XL345_ACT_Z_DISABLE 0x00
#define XL345_ACT_Y_ENABLE 0x20
#define XL345_ACT_Y_DISABLE 0x00
#define XL345_ACT_X_ENABLE 0x40
#define XL345_ACT_X_DISABLE 0x00
#define XL345_ACT_AC 0x80
#define XL345_ACT_DC 0x00
/* Bit values in TAP_AXES */
#define XL345_TAP_Z_ENABLE 0x01
#define XL345_TAP_Z_DISABLE 0x00
#define XL345_TAP_Y_ENABLE 0x02
#define XL345_TAP_Y_DISABLE 0x00
#define XL345_TAP_X_ENABLE 0x04
#define XL345_TAP_X_DISABLE 0x00
#define XL345_TAP_SUPPRESS 0x08
/* Bit values in ACT_TAP_STATUS */
#define XL345_TAP_Z_SOURCE 0x01
#define XL345_TAP_Y_SOURCE 0x02
#define XL345_TAP_X_SOURCE 0x04
#define XL345_STAT_ASLEEP 0x08
#define XL345_ACT_Z_SOURCE 0x10
#define XL345_ACT_Y_SOURCE 0x20
#define XL345_ACT_X_SOURCE 0x40
/* Bit values in BW_RATE */
/* Expresed as output data rate */
#define XL345_RATE_3200 0x0f
#define XL345_RATE_1600 0x0e
#define XL345_RATE_800 0x0d
#define XL345_RATE_400 0x0c
#define XL345_RATE_200 0x0b
#define XL345_RATE_100 0x0a
#define XL345_RATE_50 0x09
#define XL345_RATE_25 0x08
#define XL345_RATE_12_5 0x07
#define XL345_RATE_6_25 0x06
#define XL345_RATE_3_125 0x05
#define XL345_RATE_1_563 0x04
#define XL345_RATE__782 0x03
#define XL345_RATE__39 0x02
#define XL345_RATE__195 0x01
#define XL345_RATE__098 0x00
#define XL345_BW_1600 0x0f
#define XL345_BW_800 0x0e
#define XL345_BW_400 0x0d
#define XL345_BW_200 0x0c
#define XL345_BW_100 0x0b
#define XL345_BW_50 0x0a
#define XL345_BW_25 0x09
#define XL345_BW_12_5 0x08
#define XL345_BW_6_25 0x07
#define XL345_BW_3_125 0x06
#define XL345_BW_1_563 0x05
#define XL345_BW__782 0x04
#define XL345_BW__39 0x03
#define XL345_BW__195 0x02
#define XL345_BW__098 0x01
#define XL345_BW__048 0x00
#define XL345_LOW_POWER 0x08
#define XL345_LOW_NOISE 0x00
/* Bit values in POWER_CTL */
#define XL345_WAKEUP_8HZ 0x00
#define XL345_WAKEUP_4HZ 0x01
#define XL345_WAKEUP_2HZ 0x02
#define XL345_WAKEUP_1HZ 0x03
#define XL345_SLEEP 0x04
#define XL345_MEASURE 0x08
#define XL345_STANDBY 0x00
#define XL345_AUTO_SLEEP 0x10
#define XL345_ACT_INACT_SERIAL 0x20
#define XL345_ACT_INACT_CONCURRENT 0x00
#define XL345_OVERRUN 0x01
#define XL345_WATERMARK 0x02
#define XL345_FREEFALL 0x04
#define XL345_INACTIVITY 0x08
#define XL345_ACTIVITY 0x10
#define XL345_DOUBLETAP 0x20
#define XL345_SINGLETAP 0x40
#define XL345_DATAREADY 0x80
/* Bit values in DATA_FORMAT */
*/
#define XL345_RANGE_2G 0x00
#define XL345_RANGE_4G 0x01
#define XL345_RANGE_8G 0x02
#define XL345_RANGE_16G 0x03
#define XL345_DATA_JUST_RIGHT 0x00
#define XL345_DATA_JUST_LEFT 0x04
#define XL345_10BIT 0x00
#define XL345_FULL_RESOLUTION 0x08
#define XL345_INT_LOW 0x20
#define XL345_INT_HIGH 0x00
#define XL345_SPI3WIRE 0x40
#define XL345_SPI4WIRE 0x00
#define XL345_SELFTEST 0x80
/* Bit values in FIFO_CTL */
/* The low bits are a value 0-31 used for the watermark or the number
of pre-trigger samples when in triggered mode */
#define XL345_TRIGGER_INT1 0x00
#define XL345_TRIGGER_INT2 0x20
#define XL345_FIFO_MODE_BYPASS 0x00
#define XL345_FIFO_RESET 0x00
#define XL345_FIFO_MODE_FIFO 0x40
#define XL345_FIFO_MODE_STREAM 0x80
#define XL345_FIFO_MODE_TRIGGER 0xc0
*/
#define XL345_FIFO_TRIGGERED 0x80
#endif /* __XL345_H */
