179 lines
5.7 KiB
C
179 lines
5.7 KiB
C
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/*
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* adxl.h
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*
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* Created on: Jul 18, 2023
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* Author: true
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*/
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#ifndef CODE_INC_ADXL_H_
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#define CODE_INC_ADXL_H_
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#include "hk32f030m.h"
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#include "spi.h"
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typedef struct adxl345_axes {
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int16_t x;
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int16_t y;
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int16_t z;
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} adxl345_axes;
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#define ADXL345_SPI_DEV SPI1
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#define ADXL345_SPI_CS_PORT GPIOC
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#define ADXL345_SPI_CS_PIN GPIO_Pin_4
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#define ADXL345_MODE_RD 0x80
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#define ADXL345_MODE_WR 0x00
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#define ADXL345_MODE_MB 0x40 // multi-byte read or write
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#define ADXL345_REG_DEVID 0x00 // read-only, should == 0xE5
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#define ADXL345_REG_THRESH_TAP 0x1D // 0xff = 16g
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#define ADXL345_REG_OFSX 0x1E // 0x7f = 2g
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#define ADXL345_REG_OFSY 0x1F // ""
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#define ADXL345_REG_OFSZ 0x20 // ""
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#define ADXL345_REG_TAP_DUR 0x21 // 625usec/LSB, 0 disables
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#define ADXL345_REG_TAP_LATENTCY 0x22 // 1.25ms/LSB, 0 disables double tap
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#define ADXL345_REG_TAP_WINDOW 0x23 // 1.25ms/LSB, 0 disables double tap
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#define ADXL345_REG_THRESH_ACT 0x24 // 0xFF = 16g
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#define ADXL345_REG_THRESH_INACT 0x25 // 0xFF = 16g
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#define ADXL345_REG_TIME_INACT 0x26 // 1sec/LSB
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#define ADXL345_REG_ACT_INACT_CTL 0x27
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#define ADXL345_REG_THRESH_FF 0x28 // 0xFF = 16g, recommend 0x05-0x09
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#define ADXL345_REG_TIME_FF 0x29 // 5ms/LSB, recommend 0x14-0x46
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#define ADXL345_REG_TAP_AXES 0x2A
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#define ADXL345_REG_ACT_TAP_STATUS 0x2B // read-only
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#define ADXL345_REG_BW_RATE 0x2C
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#define ADXL345_REG_POWER_CTL 0x2D
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#define ADXL345_REG_INT_ENABLE 0x2E
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#define ADXL345_REG_INT_MAP 0x2F
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#define ADXL345_REG_INT_SOURCE 0x30 // read-only
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#define ADXL345_REG_DATA_FORMAT 0x31
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#define ADXL345_REG_DATAX0 0x32 // read-only
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#define ADXL345_REG_DATAX1 0x33 // read-only
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#define ADXL345_REG_DATAY0 0x34 // read-only
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#define ADXL345_REG_DATAY1 0x35 // read-only
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#define ADXL345_REG_DATAZ0 0x36 // read-only
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#define ADXL345_REG_DATAZ1 0x37 // read-only
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#define ADXL345_REG_FIFO_CTL 0x38
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#define ADXL345_REG_FIFO_STATUS 0x39
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#define ADXL345_TAP_AXES_X_ENABLE (1 << 2)
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#define ADXL345_TAP_AXES_Y_ENABLE (1 << 1)
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#define ADXL345_TAP_AXES_Z_ENABLE (1 << 0)
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#define ADXL345_CTL_ACT_AC (1 << 7)
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#define ADXL345_CTL_ACT_X_ENA (1 << 6)
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#define ADXL345_CTL_ACT_Y_ENA (1 << 5)
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#define ADXL345_CTL_ACT_Z_ENA (1 << 4)
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#define ADXL345_CTL_INACT_AC (1 << 3)
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#define ADXL345_CTL_INACT_X_ENA (1 << 2)
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#define ADXL345_CTL_INACT_Y_ENA (1 << 1)
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#define ADXL345_CTL_INACT_Z_ENA (1 << 0)
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#define ADXL345_ACT_TAP_ACT_X (1 << 6)
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#define ADXL345_ACT_TAP_ACT_Y (1 << 5)
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#define ADXL345_ACT_TAP_ACT_Z (1 << 4)
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#define ADXL345_ACT_TAP_TAP_X (1 << 2)
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#define ADXL345_ACT_TAP_TAP_Y (1 << 1)
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#define ADXL345_ACT_TAP_TAP_Z (1 << 0)
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#define ADXL345_INT_DATA_READY (1 << 7)
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#define ADXL345_INT_SINGLE_TAP (1 << 6)
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#define ADXL345_INT_DOUBLE_TAP (1 << 5)
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#define ADXL345_INT_ACTIVITY (1 << 4)
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#define ADXL345_INT_INACTIVITY (1 << 3)
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#define ADXL345_INT_FREE_FALL (1 << 2)
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#define ADXL345_INT_WATERMARK (1 << 1)
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#define ADXL345_INT_OVERRUN (1 << 0)
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#define ADXL345_INT_ALL 0xff
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#define ADXL345_DFMT_SELF_TEST (1 << 7)
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#define ADXL345_DFMT_SPI (1 << 6)
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#define ADXL345_DFMT_INT_INVERT (1 << 5)
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#define ADXL345_DFMT_FULL_RES (1 << 3)
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#define ADXL345_DFMT_JUSTIFY (1 << 2)
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#define ADXL345_DFMT_RANGE (3 << 0)
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#define ADXL345_INTR_ACTIVE_HI 1
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#define ADXL345_INTR_ACTIVE_LO 0
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#define ADXL345_BW_RATE_LOW_POWER (1 << 4)
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#define ADXL345_BW_RATE_MASK (0xf)
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#define ADXL345_BW_RATE_3200 0x0f
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#define ADXL345_BW_RATE_1600 0x0e
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#define ADXL345_BW_RATE_800 0x0d
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#define ADXL345_BW_RATE_400 0x0c // low-power compat
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#define ADXL345_BW_RATE_200 0x0b // low-power compat
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#define ADXL345_BW_RATE_100 0x0a // low-power compat
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#define ADXL345_BW_RATE_50 0x09 // low-power compat
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#define ADXL345_BW_RATE_25 0x08 // low-power compat
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#define ADXL345_BW_RATE_12_5 0x07 // low-power compat
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#define ADXL345_BW_RATE_6_25 0x06
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#define ADXL345_BW_RATE_3_13 0x05
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#define ADXL345_BW_RATE_1_56 0x04
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#define ADXL345_BW_RATE_0_78 0x03
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#define ADXL345_BW_RATE_0_39 0x02
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#define ADXL345_BW_RATE_0_20 0x01
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#define ADXL345_BW_RATE_0_10 0x00
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#define ADXL345_POWER_CTL_LINK (1 << 5)
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#define ADXL345_POWER_CTL_AUTO_SLP (1 << 4)
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#define ADXL345_POWER_CTL_MEASURE (1 << 3)
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#define ADXL345_POWER_CTL_SLEEP (1 << 2)
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#define ADXL345_POWER_CTL_WAKEUP_MASK (2 << 0)
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#define ADXL345_POWER_CTL_WAKEUP_1HZ (0x03)
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#define ADXL345_POWER_CTL_WAKEUP_2HZ (0x02)
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#define ADXL345_POWER_CTL_WAKEUP_4HZ (0x01)
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#define ADXL345_POWER_CTL_WAKEUP_8HZ (0x00)
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#define ADXL345_DATA_FORMAT_SELF_TEST (1 << 7)
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#define ADXL345_DATA_FORMAT_SPI (1 << 6)
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#define ADXL345_DATA_FORMAT_INT_INV (1 << 5)
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#define ADXL345_DATA_FORMAT_FULL_RES (1 << 3)
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#define ADXL345_DATA_FORMAT_JUSTIFY (1 << 2)
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#define ADXL345_DATA_FORMAT_RANGE_MASK (2 << 0)
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#define ADXL345_DATA_FORMAT_RANGE_16G (0x03)
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#define ADXL345_DATA_FORMAT_RANGE_8G (0x03)
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#define ADXL345_DATA_FORMAT_RANGE_4G (0x03)
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#define ADXL345_DATA_FORMAT_RANGE_2G (0x03)
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// r = receive buffer, t = transmit buffer, s = length
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#define adxl_spi_xfer(r, t, s) ADXL345_SPI_CS_PORT->BRR = ADXL345_SPI_CS_PIN; \
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spi_mosi_sel(SPI_MOSI_SPI); \
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spi_xfer(t, r, s, 0); \
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ADXL345_SPI_CS_PORT->BSRR = ADXL345_SPI_CS_PIN;
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extern adxl345_axes adxl;
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extern uint16_t movement_worst;
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void adxl345_init();
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void adxl345_tick();
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void adxl345_get_axes(struct adxl345_axes *adxl);
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int8_t adxl345_get_rotation(struct adxl345_axes *adxl);
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int16_t adxl345_movement();
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void adxl345_set_reg8(uint8_t reg, uint8_t val);
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void adxl345_set_intr(uint8_t int2_map, uint8_t interrupt_flags);
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void adxl345_set_intr_polarity(uint8_t active_polarity);
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uint8_t adxl345_get_intr_flag();
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#endif /* CODE_INC_ADXL_H_ */
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