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-rw-r--r--Cargo.lock64
-rw-r--r--src/main.rs44
2 files changed, 58 insertions, 50 deletions
diff --git a/Cargo.lock b/Cargo.lock
index 457d9d9..355ea31 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -32,9 +32,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
[[package]]
name = "cc"
-version = "1.0.78"
+version = "1.0.79"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"
+checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
[[package]]
name = "cexpr"
@@ -74,9 +74,9 @@ dependencies = [
[[package]]
name = "either"
-version = "1.8.0"
+version = "1.8.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
+checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
[[package]]
name = "fl2k_ampliphase"
@@ -99,9 +99,9 @@ dependencies = [
[[package]]
name = "glob"
-version = "0.3.0"
+version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
[[package]]
name = "lazy_static"
@@ -154,9 +154,9 @@ checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
[[package]]
name = "nix"
-version = "0.26.1"
+version = "0.26.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46a58d1d356c6597d08cde02c2f09d785b09e28711837b1ed667dc652c08a694"
+checksum = "bfdda3d196821d6af13126e40375cdf7da646a96114af134d5f417a9a1dc8e1a"
dependencies = [
"bitflags",
"cfg-if",
@@ -166,9 +166,9 @@ dependencies = [
[[package]]
name = "nom"
-version = "7.1.1"
+version = "7.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8903e5a29a317527874d0402f867152a3d21c908bb0b933e416c65e301d4c36"
+checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
dependencies = [
"memchr",
"minimal-lexical",
@@ -176,9 +176,9 @@ dependencies = [
[[package]]
name = "once_cell"
-version = "1.16.0"
+version = "1.17.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860"
+checksum = "6f61fba1741ea2b3d6a1e3178721804bb716a68a6aeba1149b5d52e3d464ea66"
[[package]]
name = "peeking_take_while"
@@ -188,9 +188,9 @@ checksum = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
[[package]]
name = "proc-macro2"
-version = "1.0.49"
+version = "1.0.50"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57a8eca9f9c4ffde41714334dee777596264c7825420f521abc92b5b5deb63a5"
+checksum = "6ef7d57beacfaf2d8aee5937dab7b7f28de3cb8b1828479bb5de2a7106f2bae2"
dependencies = [
"unicode-ident",
]
@@ -206,9 +206,9 @@ dependencies = [
[[package]]
name = "regex"
-version = "1.7.0"
+version = "1.7.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e076559ef8e241f2ae3479e36f97bd5741c0330689e217ad51ce2c76808b868a"
+checksum = "48aaa5748ba571fb95cd2c85c09f629215d3a6ece942baa100950af03a34f733"
dependencies = [
"regex-syntax",
]
@@ -262,9 +262,9 @@ checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
[[package]]
name = "which"
-version = "4.3.0"
+version = "4.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c831fbbee9e129a8cf93e7747a82da9d95ba8e16621cae60ec2cdc849bacb7b"
+checksum = "2441c784c52b289a054b7201fc93253e288f094e2f4be9058343127c4226a269"
dependencies = [
"either",
"libc",
@@ -310,42 +310,42 @@ dependencies = [
[[package]]
name = "windows_aarch64_gnullvm"
-version = "0.42.0"
+version = "0.42.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
+checksum = "8c9864e83243fdec7fc9c5444389dcbbfd258f745e7853198f365e3c4968a608"
[[package]]
name = "windows_aarch64_msvc"
-version = "0.42.0"
+version = "0.42.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
+checksum = "4c8b1b673ffc16c47a9ff48570a9d85e25d265735c503681332589af6253c6c7"
[[package]]
name = "windows_i686_gnu"
-version = "0.42.0"
+version = "0.42.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
+checksum = "de3887528ad530ba7bdbb1faa8275ec7a1155a45ffa57c37993960277145d640"
[[package]]
name = "windows_i686_msvc"
-version = "0.42.0"
+version = "0.42.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
+checksum = "bf4d1122317eddd6ff351aa852118a2418ad4214e6613a50e0191f7004372605"
[[package]]
name = "windows_x86_64_gnu"
-version = "0.42.0"
+version = "0.42.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
+checksum = "c1040f221285e17ebccbc2591ffdc2d44ee1f9186324dd3e84e99ac68d699c45"
[[package]]
name = "windows_x86_64_gnullvm"
-version = "0.42.0"
+version = "0.42.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
+checksum = "628bfdf232daa22b0d64fdb62b09fcc36bb01f05a3939e20ab73aaf9470d0463"
[[package]]
name = "windows_x86_64_msvc"
-version = "0.42.0"
+version = "0.42.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
+checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd"
diff --git a/src/main.rs b/src/main.rs
index 54f7171..e35062e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -69,8 +69,8 @@ impl<T> BufferDumper<T> {
}
struct DDS {
- trig_table_quadrature: Vec<i8>,
- trig_table_inphase: Vec<i8>,
+ trig_table_carrier_1: Vec<i8>,
+ trig_table_carrier_2: Vec<i8>,
/* instantaneous phase */
phase: u32,
@@ -83,23 +83,23 @@ struct DDS {
}
impl DDS {
- fn init(samp_rate: f32, freq: f32, phase: f32, waveform: Waveform) -> Self {
- let mut trig_table_inphase = Vec::with_capacity(TRIG_TABLE_LEN);
- let mut trig_table_quadrature = Vec::with_capacity(TRIG_TABLE_LEN);
+ fn init(samp_rate: f32, freq: f32, carrier_phase_delta: f32, waveform: Waveform) -> Self {
+ let mut trig_table_carrier_1 = Vec::with_capacity(TRIG_TABLE_LEN);
+ let mut trig_table_carrier_2 = Vec::with_capacity(TRIG_TABLE_LEN);
let incr = 1.0f32 / TRIG_TABLE_LEN as f32;
for i in 0..TRIG_TABLE_LEN {
- let inphase = f32::cos(incr * i as f32 * 2.0 * PI) * 127.0;
- let quadrature = f32::sin(incr * i as f32 * 2.0 * PI) * 127.0;
+ let c1 = f32::sin((incr * i as f32 + carrier_phase_delta/2.0) * 2.0 * PI) * 127.0;
+ let c2 = f32::sin((incr * i as f32 - carrier_phase_delta/2.0) * 2.0 * PI) * 127.0;
match waveform {
Waveform::Sine => {
- trig_table_inphase.push(f32::round(inphase) as i8);
- trig_table_quadrature.push(f32::round(quadrature) as i8);
+ trig_table_carrier_1.push(f32::round(c1) as i8);
+ trig_table_carrier_2.push(f32::round(c2) as i8);
}
Waveform::Rect => {
- trig_table_inphase.push(if inphase >= 0.0 { 127 } else { -127 });
- trig_table_quadrature.push(if quadrature >= 0.0 { 127 } else { -127 });
+ trig_table_carrier_1.push(if c1 >= 0.0 { 127 } else { -127 });
+ trig_table_carrier_2.push(if c2 >= 0.0 { 127 } else { -127 });
}
}
}
@@ -107,9 +107,9 @@ impl DDS {
let phase_step = (freq / samp_rate) * 2.0 * PI * ANG_INCR;
DDS {
- trig_table_quadrature,
- trig_table_inphase,
- phase: f32::round(phase * ANG_INCR) as u32,
+ trig_table_carrier_1,
+ trig_table_carrier_2,
+ phase: 0,
phase_step: f32::round(phase_step) as u32,
phase_delta: 0,
phase_slope: 0,
@@ -131,7 +131,8 @@ fn main() {
opts.optopt("d", "device-index", "Select device index", "DEVINDEX");
opts.optopt("c", "center-freq", "Center frequency in Hz (default: 1440 kHz)", "FREQ");
opts.optopt("s", "samplerate", "Samplerate in Hz (default: 96 MS/s)", "RATE");
- opts.optopt("m", "mod-index", "Modulation index (default: 0.25)]", "FACTOR");
+ opts.optopt("m", "mod-index", "Modulation index (default: 0.25)", "FACTOR");
+ opts.optopt("p", "carrier-phase", "Carrier phase difference (default: 90)", "DEGREES");
opts.optopt("i", "input-rate", "Input baseband sample rate (default: 48000 Hz)", "RATE");
opts.optopt("w", "waveform", "(sine|rect) default: rect", "WAVEFORM");
opts.optflag("C", "device-count", "Return FL2K device count and quit");
@@ -183,6 +184,12 @@ fn main() {
None => 0.25,
};
+ let carrier_phase_delta_degrees = match cli_args.opt_str("p") {
+ Some(s) => s.parse().expect("floating point value"),
+ None => 90.0,
+ };
+ let carrier_phase_delta = carrier_phase_delta_degrees * PI / 180.0;
+
let waveform = match cli_args.opt_str("w") {
None => Waveform::Rect,
Some(w) if w == "sine" => Waveform::Sine,
@@ -211,6 +218,7 @@ fn main() {
eprintln!("Input rate: {} kHz", (input_rate as f32)/1e3);
eprintln!("Samplerate: {} MHz", (samp_rate as f32)/1e6);
eprintln!("Center frequency: {} kHz", base_freq/1e3);
+ eprintln!("Carrier phase d {} deg ({} rad)", carrier_phase_delta_degrees, carrier_phase_delta);
let running = Arc::new(AtomicBool::new(true));
@@ -341,7 +349,7 @@ fn main() {
// Read PD and PDSLOPE, interpolate to higher rate
thread::spawn(move || {
- let mut dds = DDS::init(samp_rate as f32, base_freq, 0.0, waveform);
+ let mut dds = DDS::init(samp_rate as f32, base_freq, carrier_phase_delta, waveform);
let mut debug_writer = match output {
Output::Debug => Some(BufWriter::new(File::create("debug-dds.csv").expect("create file"))),
@@ -367,8 +375,8 @@ fn main() {
panic!("Phase IDX out of bounds");
}
- out_i.push(dds.trig_table_inphase[phase_idx_i as usize]);
- out_q.push(dds.trig_table_quadrature[phase_idx_q as usize]);
+ out_i.push(dds.trig_table_carrier_1[phase_idx_i as usize]);
+ out_q.push(dds.trig_table_carrier_2[phase_idx_q as usize]);
if let Some(w) = &mut debug_writer {
writeln!(w, "{},{},{},{},{}", ix, dds.phase, dds.phase_delta, phase_idx_i, phase_idx_q)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 18:44:33 +0000