LAUNCHXL-CC1312R1: Sensor Controller Studio Low Pass

Hi David,

You can take a look at the iirFilter macro in the capacitive touch example in the event handler A code (see below). This implements a first order IIR-filter.

macro iirFilter(acc, add, divExp) {
    U16 accInt = acc << 1;
    accInt -= acc >> (divExp - 1);
    accInt += add >> (divExp - 1);
    acc = accInt >> 1;
}

Regards,
Nikolaj

Great, thank you