lis302dl.h (SPI)

//
// lis302dl.h
// Описание регистров акселерометра LIS302DL
// Плата STM32F4-Discovery

#ifndef _LIS302DL_H
#define _LIS302DL_H

    // Регистры акселерометра
    #define LIS302DL_WHO_AM_I_ADDR   0x0F // Device Identification Register
    #define LIS302DL_CTRL_REG1_ADDR  0x20 // Control Register 1
    #define LIS302DL_CTRL_REG2_ADDR  0x21 // Control Register 2
    #define LIS302DL_CTRL_REG3_ADDR  0x22 // Interrupt Control Register
    #define LIS302DL_HP_FILTER_RESET_REG_ADDR  0x23 // Dummy register.


    // Reading at this address zeroes instantaneously the content of the internal
    // high pass filter. If the high pass filter is enabled all three axes are
    // instantaneously set to 0g. This allows to overcome the settling time of
    // the high pass filter.

    #define LIS302DL_STATUS_REG_ADDR  0x27 // Status Register

    #define LIS302DL_OUT_X_ADDR  0x29 // X-axis output Data
    #define LIS302DL_OUT_Y_ADDR  0x2B // Y-axis output Data
    #define LIS302DL_OUT_Z_ADDR  0x2D // Z-axis output Data

    // Правильное содержимое WHO_AM_I
    #define LIS302DL_WHO_AM_I_ID 0x3B

    // Регистр CTRL_REG1
    #define LIS302DL_CTRL_REG1_DR 0x80 // Data Rate selection.
    // 0 - 100 Hz output data rate
    // 1 - 400 Hz output data rate

    #define LIS302DL_CTRL_REG1_PD 0x40 // Power Down control.
    // 0 - power down mode
    // 1 - active mode

    #define LIS302DL_CTRL_REG1_FS 0x20 // Full Scale selection.
    // 0 - Typical measurement range 2.3
    // 1 - Typical measurement range 9.2

    #define LIS302DL_CTRL_REG1_STP 0x10 // Self Test P Enable.
    #define LIS302DL_CTRL_REG1_STM 0x08 // Self Test M Enable.
    // STP | STM
    // 0 | 0 | Normal mode
    // 0 | 1 | Self Test M
    // 1 | 0 | Self Test P

    #define LIS302DL_CTRL_REG1_ZEN 0x04 // Z axis enable.
    // 0 - Z axis disabled
    // 1 - Z axis enabled

    #define LIS302DL_CTRL_REG1_YEN 0x02 // Y axis enable.
    // 0 - Y axis disabled
    // 1 - Y axis enabled

    #define LIS302DL_CTRL_REG1_XEN 0x01 // X axis enable.
    // 0 - X axis disabled
    // 1 - X axis enabled

    // Регистр CTRL_REG2
    #define LIS302DL_CTRL_REG2_SIM   0x80 // SPI Serial Interface Mode Selection.
    // 0 - 4 wire interface
    // 1 - 3 wire interface

    #define LIS302DL_CTRL_REG2_BOOT  0x40 // Reboot memory content.
    // 0 - normal mode
    // 1 - reboot memory content

    #define LIS302DL_CTRL_REG2_FDS   0x10 // Filtered data selection.
    // 0 - internal filter bypassed
    // 1 - data from internal filter sent to output register

    #define LIS302DL_CTRL_REG2_HP_FF_WU2 0x08 // High pass filter enabled for FreeFall/WakeUp#2.
    // 0 - filter bypassed
    // 1 - filter enabled

    #define LIS302DL_CTRL_REG2_HP_FF_WU1 0x04 // High pass filter enabled for FreeFall/WakeUp#1.
    // 0 - filter bypassed
    // 1 - filter enabled

    #define LIS302DL_CTRL_REG2_HP_COEFF2 0x02 // High pass filter cut-off frequency (ft) configuration.
    #define LIS302DL_CTRL_REG2_HP_COEFF1 0x01 // High pass filter cut-off frequency (ft) configuration.
    //
    // ft= ODR[hz]/6*HP coeff
    // HP coeff2 | HP coeff1 | HP coeff
    // ---------------------------------
    // 0 | 0 | 8
    // 0 | 1 | 16
    // 1 | 0 | 32
    // 1 | 1 | 64
    //
    // HP coeff | ft[hz] | ft[hz] |
    // | ODR 100Hz | ODR 400Hz |
    // ----------------------------------
    // 00 | 2 | 8 |
    // 01 | 1 | 4 |
    // 10 | 0.5 | 2 |
    // 11 | 0.25 | 1 |

    // Регистр CTRL_REG3
    #define LIS302DL_CTRL_REG3_IHL   0x80 // Interrupt active high/low.
    // 0 - active high
    // 1 - active low

    #define LIS302DL_CTRL_REG3_PP_OD 0x40 // push-pull/open-drain.
    // 0 - push-pull
    // 1 - open-drain

    #define LIS302DL_CTRL_REG3_I2_CFG2 0x20 // Data signal on INT2 pad control bits
    #define LIS302DL_CTRL_REG3_I2_CFG1 0x10 // Data signal on INT2 pad control bits
    #define LIS302DL_CTRL_REG3_I2_CFG0 0x08 // Data signal on INT2 pad control bits

    #define LIS302DL_CTRL_REG3_I1_CFG2 0x04 // Data signal on INT1 pad control bits
    #define LIS302DL_CTRL_REG3_I1_CFG1 0x02 // Data signal on INT1 pad control bits
    #define LIS302DL_CTRL_REG3_I1_CFG0 0x01 // Data signal on INT1 pad control bits
    // I1(2)_CFG2 | I1(2)_CFG1 | I1(2)_CFG0 | INT1(2) Pad
    // ----------------------------------------------------------
    // 0 | 0 | 0 | GND
    // 0 | 0 | 1 | FreeFall/WakeUp#1
    // 0 | 1 | 0 | FreeFall/WakeUp#2
    // 0 | 1 | 1 | FreeFall/WakeUp#1 or FreeFall/WakeUp#2
    // 1 | 0 | 0 | Data ready
    // 1 | 1 | 1 | Click interrupt

    // Регистр STATUS_REG
    #define LIS302DL_STATUS_REG_ZYXOR 0x80 // X, Y and Z axis data overrun.
    // 0: no overrun has occurred
    // 1: new data has overwritten the previous one before it was read

    #define LIS302DL_STATUS_REG_ZOR   0x40 // Z axis data overrun.
    // 0: no overrun has occurred
    // 1: new data for Z-axis has overwritten the previous one before it was read

    #define LIS302DL_STATUS_REG_yOR   0x20 // y axis data overrun.
    // 0: no overrun has occurred
    // 1: new data for y-axis has overwritten the previous one before it was read

    #define LIS302DL_STATUS_REG_XOR   0x10 // X axis data overrun.
    // 0: no overrun has occurred
    // 1: new data for X-axis has overwritten the previous one before it was read

    #define LIS302DL_STATUS_REG_ZYXDA 0x08 // X, Y and Z axis new data available
    // 0: a new set of data is not yet available
    // 1: a new set of data is available

    #define LIS302DL_STATUS_REG_ZDA   0x04 // Z axis new data available.
    // 0: a new set of data is not yet available
    // 1: a new data for Z axis is available

    #define LIS302DL_STATUS_REG_YDA   0x02 // Y axis new data available
    // 0: a new set of data is not yet available
    // 1: a new data for Y axis is available

    #define LIS302DL_STATUS_REG_XDA   0x01 // X axis new data available
    // 0: a new set of data is not yet available
    // 1: a new data for X axis is available

    // Там ещё дофига, но мне надоело

    #define LIS302DL_SENSITIVITY_2_3G 18 // 18 mg/digit
    #define LIS302DL_SENSITIVITY_9_2G 72 // 72 mg/digit

    #define LIS302DL_DATARATE_100 0x00
    #define LIS302DL_DATARATE_400 0x80

    #define LIS302DL_LOWPOWERMODE_POWERDOWN 0x00
    #define LIS302DL_LOWPOWERMODE_ACTIVE    0x40

    #define LIS302DL_FULLSCALE_2_3 0x00
    #define LIS302DL_FULLSCALE_9_2 0x20

    #define LIS302DL_X_ENABLE 0x01
    #define LIS302DL_Y_ENABLE 0x02
    #define LIS302DL_Z_ENABLE 0x04
    #define LIS302DL_XYZ_ENABLE 0x07

#endif