private void setAccelFullScaleRange(AccelFullScale afs)
{
// * 0 = +/- 2g
// * 1 = +/- 4g
// * 2 = +/- 8g
// * 3 = +/- 16g
// bit 4 len 2
this.WriteBits(Register.ACCEL_CONFIG, 4, 2, Convert.ToByte(afs));
Hardware.Library.Delay(10);
}
private static float get_aRes(AccelFullScale ascale)
{
switch (ascale)
{
// Possible accelerometer scales (and their register bit settings) are:
// 2 Gs (00), 4 Gs (01), 8 Gs (10), and 16 Gs (11).
// Here's a bit of an algorith to calculate DPS/(ADC tick) based on that 2-bit value:
case AccelFullScale.AFS_2G:
return(2.0f / 32768.0f);
case AccelFullScale.AFS_4G:
return(4.0f / 32768.0f);
case AccelFullScale.AFS_8G:
return(8.0f / 32768.0f);
case AccelFullScale.AFS_16G:
return(16.0f / 32768.0f);
default:
throw new Exception("get_aRes error");
}
}