Beispiel #1
0
static void configure_accel(void) {
  /* set data rate to 800Hz and bandwidth to 400Hz (unless set otherwise) */
  adxl345_write_to_reg(ADXL345_REG_BW_RATE, ASPIRIN_ACCEL_RATE);
  /* switch to measurememnt mode */
  adxl345_write_to_reg(ADXL345_REG_POWER_CTL, 1<<3);
  /* enable data ready interrupt */
  adxl345_write_to_reg(ADXL345_REG_INT_ENABLE, 1<<7);
  /* Enable full res with +-16g range and interrupt active low */
  adxl345_write_to_reg(ADXL345_REG_DATA_FORMAT, ADXL345_FULL_RES|ADXL345_RANGE_16G|ADXL345_INT_INVERT);
}
Beispiel #2
0
static void configure_accel(void) {

  /* set data rate to 800Hz */
  adxl345_write_to_reg(ADXL345_REG_BW_RATE, 0x0D);
  /* switch to measurememnt mode */
  adxl345_write_to_reg(ADXL345_REG_POWER_CTL, 1<<3);
  /* enable data ready interrupt */
  adxl345_write_to_reg(ADXL345_REG_INT_ENABLE, 1<<7);
  /* Enable full res and interrupt active low */
  adxl345_write_to_reg(ADXL345_REG_DATA_FORMAT, 1<<3|1<<5);
  /* clear spi rx reg to make DMA happy */
  adxl345_clear_rx_buf();
  /* reads data once to bring interrupt line up */
  adxl345_start_reading_data();

}