Posted on November 14, 2016 at 07:37Hi,
I want the most basic function -- data ready interrupt, but it seems not so easy to come out. Here are my configurations:
void lis3dh_init(void)
{
//Inizialize MEMS Sensor
lis3dh_reset();
//set ODR (turn ON device)
LIS3DH_SetODR(LIS3DH_ODR_50Hz);
//set PowerMode
LIS3DH_SetMode(LIS3DH_NORMAL);
//set Fullscale
LIS3DH_SetFullScale(LIS3DH_FULLSCALE_4);
//set axis Enable
LIS3DH_SetAxis(LIS3DH_X_ENABLE | LIS3DH_Y_ENABLE | LIS3DH_Z_ENABLE);
LIS3DH_SetInt1Pin(LIS3DH_CLICK_ON_PIN_INT1_DISABLE | LIS3DH_I1_INT1_ON_PIN_INT1_DISABLE |
LIS3DH_I1_INT2_ON_PIN_INT1_DISABLE | LIS3DH_I1_DRDY1_ON_INT1_ENABLE | LIS3DH_I1_DRDY2_ON_INT1_DISABLE |
LIS3DH_WTM_ON_INT1_DISABLE | LIS3DH_INT1_OVERRUN_DISABLE );
//initialize the pedometer
IntPedomter();
}
void get_acc_data(void)
{
if(!g_int_triggered) return;
AxesRaw_t data;
LIS3DH_GetAccAxesRaw(&data);/* Read the accel XYZ data*/
PEDO_SampWrite(((data.AXIS_X)>>6)<<3, ((data.AXIS_Y)>>6)<<3, ((data.AXIS_Z)>>6)<<3);
// PRINTF(''%d\t%d\t%d\n'', (data.AXIS_X)/8, (data.AXIS_Y)/8, (data.AXIS_Z)/8);
}
And I've already configure the INT1 pin as a low-to-high edge triggered pin. But when I use the oscilloscope to get the waveforms, it is a straight line, I cannot see any change from it. And also cannot get any acceleration data.
So my question is how to configure the data ready interrupt correctly? Thank you.
