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iir: add const fn new()

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This commit is contained in:
Robert Jördens 2021-02-01 17:18:10 +01:00
parent 656e3253ab
commit b6e22b576b
3 changed files with 13 additions and 4 deletions
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9
dsp/src/iir.rs
View File

@ -48,6 +48,15 @@ pub struct IIR {
}
impl IIR {
pub const fn new(gain: f32, y_min: f32, y_max: f32) -> Self {
Self {
ba: Vec5([gain, 0., 0., 0., 0.]),
y_offset: 0.,
y_min: y_min,
y_max: y_max,
}
}
/// Configures IIR filter coefficients for proportional-integral behavior
/// with gain limit.
///

4
src/bin/dual-iir.rs
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@ -17,7 +17,7 @@ use stabilizer::{hardware, server};
use dsp::iir;
use hardware::{Adc0Input, Adc1Input, Dac0Output, Dac1Output, AFE0, AFE1};
const SCALE: f32 = i16::MAX as f32;
const SCALE: f32 = i16::MAX as _;
const TCP_RX_BUFFER_SIZE: usize = 8192;
const TCP_TX_BUFFER_SIZE: usize = 8192;
@ -36,7 +36,7 @@ const APP: () = {
// Format: iir_state[ch][cascade-no][coeff]
#[init([[iir::Vec5([0.; 5]); IIR_CASCADE_LENGTH]; 2])]
iir_state: [[iir::Vec5; IIR_CASCADE_LENGTH]; 2],
#[init([[iir::IIR { ba: iir::Vec5([1., 0., 0., 0., 0.]), y_offset: 0., y_min: -SCALE, y_max: SCALE }; IIR_CASCADE_LENGTH]; 2])]
#[init([[iir::IIR::new(1., -SCALE, SCALE); IIR_CASCADE_LENGTH]; 2])]
iir_ch: [[iir::IIR; IIR_CASCADE_LENGTH]; 2],
}

4
src/bin/lockin-external.rs
View File

@ -21,7 +21,7 @@ use hardware::{
Adc0Input, Adc1Input, Dac0Output, Dac1Output, InputStamper, AFE0, AFE1,
};
const SCALE: f32 = i16::MAX as f32;
const SCALE: f32 = i16::MAX as _;
const TCP_RX_BUFFER_SIZE: usize = 8192;
const TCP_TX_BUFFER_SIZE: usize = 8192;
@ -40,7 +40,7 @@ const APP: () = {
// Format: iir_state[ch][cascade-no][coeff]
#[init([[iir::Vec5([0.; 5]); IIR_CASCADE_LENGTH]; 2])]
iir_state: [[iir::Vec5; IIR_CASCADE_LENGTH]; 2],
#[init([[iir::IIR { ba: iir::Vec5([1., 0., 0., 0., 0.]), y_offset: 0., y_min: -SCALE, y_max: SCALE }; IIR_CASCADE_LENGTH]; 2])]
#[init([[iir::IIR::new(1./(1 << 16) as f32, -SCALE, SCALE); IIR_CASCADE_LENGTH]; 2])]
iir_ch: [[iir::IIR; IIR_CASCADE_LENGTH]; 2],
timestamper: InputStamper,