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