cic-fixed

A CIC filter implementation for fixed point numbers.
Implemented for use in converting PDM to PCM.

WIP

• CIC decimation filter
• CIC interpolation filter

no_std

cic-fixed works with no_std by default. No setup is needed.

lib.rs:

cic-fixed

A CIC filter implementation for fixed point numbers.
Implemented for use in converting PDM to PCM.

Example

use cic_fixed::CicDecimationFilter;

let mut filter = CicDecimationFilter::<4, 2>::new();
let result = filter.process_sample(&0);
assert!(result.is_none());
let result = filter.process_sample(&1);
assert!(result.is_none());
let result = filter.process_sample(&2);
assert!(result.is_none());
let result = filter.process_sample(&3);
assert!(result.is_some());
assert_eq!(result.unwrap(), 10);