261: MQTT settings and telemetry r=ryan-summers a=ryan-summers

This PR replaces https://github.com/quartiq/stabilizer/pull/242

This PR addresses #149 by exposing a simple MQTT-based settings interface

**TODO**:
- [x] Resolve mutable ownership issues in the `MqttInterface`
- [x] Expand settings interface to `lockin.rs`
- [x] Add all settings (not yet supported by `miniconf`)
- [x] ~~Finalize and publish the `miniconf` package~~ Deferred to the future.
- [x] Move `MqttInterface`-like behaviors over to `miniconf`
- [x] Move smoltcp-nal to a separate crate
- [x] Test on hardware
- [x] ~~Implement stabilizer telemetry~~: Deferred to future

Co-authored-by: Ryan Summers <ryan.summers@vertigo-designs.com>
Co-authored-by: Robert Jördens <rj@quartiq.de>
This commit is contained in:
bors[bot] 2021-02-19 10:06:39 +00:00 committed by GitHub
commit bfb416b85b
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15 changed files with 328 additions and 1102 deletions

542
Cargo.lock generated
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[[package]] [[package]]
name = "unicode-xid" name = "unicode-xid"
version = "0.2.1" version = "0.2.1"
@ -1139,114 +823,8 @@ dependencies = [
"vcell", "vcell",
] ]
[[package]]
name = "walkdir"
version = "2.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
dependencies = [
"same-file",
"winapi",
"winapi-util",
]
[[package]] [[package]]
name = "wasi" name = "wasi"
version = "0.10.2+wasi-snapshot-preview1" version = "0.10.2+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6" checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
[[package]]
name = "wasm-bindgen"
version = "0.2.70"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "55c0f7123de74f0dab9b7d00fd614e7b19349cd1e2f5252bbe9b1754b59433be"
dependencies = [
"cfg-if",
"wasm-bindgen-macro",
]
[[package]]
name = "wasm-bindgen-backend"
version = "0.2.70"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7bc45447f0d4573f3d65720f636bbcc3dd6ce920ed704670118650bcd47764c7"
dependencies = [
"bumpalo",
"lazy_static",
"log",
"proc-macro2",
"quote",
"syn",
"wasm-bindgen-shared",
]
[[package]]
name = "wasm-bindgen-macro"
version = "0.2.70"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3b8853882eef39593ad4174dd26fc9865a64e84026d223f63bb2c42affcbba2c"
dependencies = [
"quote",
"wasm-bindgen-macro-support",
]
[[package]]
name = "wasm-bindgen-macro-support"
version = "0.2.70"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4133b5e7f2a531fa413b3a1695e925038a05a71cf67e87dafa295cb645a01385"
dependencies = [
"proc-macro2",
"quote",
"syn",
"wasm-bindgen-backend",
"wasm-bindgen-shared",
]
[[package]]
name = "wasm-bindgen-shared"
version = "0.2.70"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dd4945e4943ae02d15c13962b38a5b1e81eadd4b71214eee75af64a4d6a4fd64"
[[package]]
name = "web-sys"
version = "0.3.47"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c40dc691fc48003eba817c38da7113c15698142da971298003cac3ef175680b3"
dependencies = [
"js-sys",
"wasm-bindgen",
]
[[package]]
name = "winapi"
version = "0.3.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
dependencies = [
"winapi-i686-pc-windows-gnu",
"winapi-x86_64-pc-windows-gnu",
]
[[package]]
name = "winapi-i686-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
[[package]]
name = "winapi-util"
version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
dependencies = [
"winapi",
]
[[package]]
name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

View File

@ -36,7 +36,6 @@ panic-semihosting = { version = "0.5", optional = true }
panic-halt = "0.2" panic-halt = "0.2"
serde = { version = "1.0", features = ["derive"], default-features = false } serde = { version = "1.0", features = ["derive"], default-features = false }
heapless = { version = "0.5", features = ["serde"] } heapless = { version = "0.5", features = ["serde"] }
serde-json-core = "0.2"
cortex-m-rtic = "0.5.5" cortex-m-rtic = "0.5.5"
embedded-hal = "0.2.4" embedded-hal = "0.2.4"
nb = "1.0.0" nb = "1.0.0"
@ -45,15 +44,20 @@ enum-iterator = "0.6.0"
paste = "1" paste = "1"
dsp = { path = "dsp" } dsp = { path = "dsp" }
ad9959 = { path = "ad9959" } ad9959 = { path = "ad9959" }
smoltcp-nal = "0.1.0"
miniconf = "0.1"
[patch.crates-io.miniconf]
git = "https://github.com/quartiq/miniconf.git"
branch = "develop"
[patch.crates-io.serde-json-core]
git = "https://github.com/rust-embedded-community/serde-json-core.git"
branch = "master"
[dependencies.mcp23017] [dependencies.mcp23017]
git = "https://github.com/mrd0ll4r/mcp23017.git" git = "https://github.com/mrd0ll4r/mcp23017.git"
[dependencies.smoltcp]
version = "0.7"
features = ["ethernet", "proto-ipv4", "socket-tcp", "proto-ipv6"]
default-features = false
[dependencies.stm32h7xx-hal] [dependencies.stm32h7xx-hal]
features = ["stm32h743v", "rt", "unproven", "ethernet", "quadspi"] features = ["stm32h743v", "rt", "unproven", "ethernet", "quadspi"]
git = "https://github.com/stm32-rs/stm32h7xx-hal" git = "https://github.com/stm32-rs/stm32h7xx-hal"

View File

@ -80,6 +80,5 @@ See https://github.com/sinara-hw/Stabilizer
## Protocol ## Protocol
Stabilizer can be configured via newline-delimited JSON over TCP. Stabilizer can be configured via MQTT under the topic `stabilizer/settings/<setting>`. Refer to
It listens on port 1235. [stabilizer.py](stabilizer.py) contains a reference [`miniconf`](https://github.com/quartiq/miniconf) for more information about topics.
implementation of the protocol.

View File

@ -9,9 +9,10 @@ libm = "0.2.1"
serde = { version = "1.0", features = ["derive"], default-features = false } serde = { version = "1.0", features = ["derive"], default-features = false }
generic-array = "0.14" generic-array = "0.14"
num = { version = "0.3.1", default-features = false } num = { version = "0.3.1", default-features = false }
miniconf = "0.1"
[dev-dependencies] [dev-dependencies]
criterion = "0.3" easybench = "1.0"
rand = "0.8" rand = "0.8"
ndarray = "0.14" ndarray = "0.14"

View File

@ -1,68 +1,80 @@
use core::f32::consts::PI; use core::f32::consts::PI;
use criterion::{black_box, criterion_group, criterion_main, Criterion}; use dsp::{atan2, cossin};
use dsp::{atan2, cossin, iir, iir_int, PLL, RPLL}; use dsp::{iir, iir_int};
use dsp::{PLL, RPLL};
use easybench::bench_env;
fn atan2_bench(c: &mut Criterion) { fn atan2_bench() {
let xi = (10 << 16) as i32; let xi = (10 << 16) as i32;
let xf = xi as f32 / i32::MAX as f32; let xf = xi as f32 / i32::MAX as f32;
let yi = (-26_328 << 16) as i32; let yi = (-26_328 << 16) as i32;
let yf = yi as f32 / i32::MAX as f32; let yf = yi as f32 / i32::MAX as f32;
c.bench_function("atan2(y, x)", |b| { println!(
b.iter(|| atan2(black_box(yi), black_box(xi))) "atan2(yi, xi): {}",
}); bench_env((yi, xi), |(yi, xi)| atan2(*yi, *xi))
c.bench_function("y.atan2(x)", |b| { );
b.iter(|| black_box(yf).atan2(black_box(xf))) println!(
}); "yf.atan2(xf): {}",
bench_env((yf, xf), |(yf, xf)| yf.atan2(*xf))
);
} }
fn cossin_bench(c: &mut Criterion) { fn cossin_bench() {
let zi = -0x7304_2531_i32; let zi = -0x7304_2531_i32;
let zf = zi as f32 / i32::MAX as f32 * PI; let zf = zi as f32 / i32::MAX as f32 * PI;
c.bench_function("cossin(zi)", |b| b.iter(|| cossin(black_box(zi)))); println!("cossin(zi): {}", bench_env(zi, |zi| cossin(*zi)));
c.bench_function("zf.sin_cos()", |b| b.iter(|| black_box(zf).sin_cos())); println!("zf.sin_cos(): {}", bench_env(zf, |zf| zf.sin_cos()));
} }
fn rpll_bench(c: &mut Criterion) { fn rpll_bench() {
let mut dut = RPLL::new(8); let mut dut = RPLL::new(8);
c.bench_function("RPLL::update(Some(t), 21, 20)", |b| { println!(
b.iter(|| dut.update(black_box(Some(0x241)), 21, 20)) "RPLL::update(Some(t), 21, 20): {}",
}); bench_env(Some(0x241), |x| dut.update(*x, 21, 20))
c.bench_function("RPLL::update(Some(t), sf, sp)", |b| { );
b.iter(|| { println!(
dut.update(black_box(Some(0x241)), black_box(21), black_box(20)) "RPLL::update(Some(t), sf, sp): {}",
}) bench_env((Some(0x241), 21, 20), |(x, p, q)| dut.update(*x, *p, *q))
}); );
} }
fn pll_bench(c: &mut Criterion) { fn pll_bench() {
let mut dut = PLL::default(); let mut dut = PLL::default();
c.bench_function("PLL::update(t, 12, 11)", |b| { println!(
b.iter(|| dut.update(black_box(0x1234), 12, 1)) "PLL::update(t, 12, 12): {}",
}); bench_env(0x241, |x| dut.update(*x, 12, 12))
c.bench_function("PLL::update(t, sf, sp)", |b| { );
b.iter(|| dut.update(black_box(0x241), black_box(21), black_box(20))) println!(
}); "PLL::update(t, sf, sp): {}",
bench_env((0x241, 21, 20), |(x, p, q)| dut.update(*x, *p, *q))
);
} }
fn iir_int_bench(c: &mut Criterion) { fn iir_int_bench() {
let dut = iir_int::IIR::default(); let dut = iir_int::IIR::default();
let mut xy = iir_int::Vec5::default(); let mut xy = iir_int::Vec5::default();
c.bench_function("int_iir::IIR::update(s, x)", |b| { println!(
b.iter(|| dut.update(&mut xy, black_box(0x2832))) "int_iir::IIR::update(s, x): {}",
}); bench_env(0x2832, |x| dut.update(&mut xy, *x))
);
} }
fn iir_bench(c: &mut Criterion) { fn iir_bench() {
let dut = iir::IIR::default(); let dut = iir::IIR::default();
let mut xy = iir::Vec5::default(); let mut xy = iir::Vec5::default();
c.bench_function("int::IIR::update(s, x)", |b| { println!(
b.iter(|| dut.update(&mut xy, black_box(0.32241))) "int::IIR::update(s, x): {}",
}); bench_env(0.32241, |x| dut.update(&mut xy, *x))
);
} }
criterion_group!(trig, atan2_bench, cossin_bench); fn main() {
criterion_group!(pll, rpll_bench, pll_bench); atan2_bench();
criterion_group!(iir, iir_int_bench, iir_bench); cossin_bench();
criterion_main!(trig, pll, iir); rpll_bench();
pll_bench();
iir_int_bench();
iir_bench();
}

View File

@ -1,4 +1,5 @@
use serde::{Deserialize, Serialize}; use miniconf::StringSet;
use serde::Deserialize;
use super::{abs, copysign, macc, max, min}; use super::{abs, copysign, macc, max, min};
use core::f32; use core::f32;
@ -38,7 +39,7 @@ pub type Vec5 = [f32; 5];
/// Therefore it can trivially implement bump-less transfer. /// Therefore it can trivially implement bump-less transfer.
/// * Cascading multiple IIR filters allows stable and robust /// * Cascading multiple IIR filters allows stable and robust
/// implementation of transfer functions beyond bequadratic terms. /// implementation of transfer functions beyond bequadratic terms.
#[derive(Copy, Clone, Default, Deserialize, Serialize)] #[derive(Copy, Clone, Debug, Default, Deserialize, StringSet)]
pub struct IIR { pub struct IIR {
pub ba: Vec5, pub ba: Vec5,
pub y_offset: f32, pub y_offset: f32,

View File

@ -4,33 +4,49 @@
use stm32h7xx_hal as hal; use stm32h7xx_hal as hal;
#[macro_use] use stabilizer::hardware;
extern crate log;
use rtic::cyccnt::{Instant, U32Ext}; use miniconf::{
embedded_nal::{IpAddr, Ipv4Addr},
use heapless::{consts::*, String}; minimq, MqttInterface, StringSet,
};
use stabilizer::{hardware, server}; use serde::Deserialize;
use dsp::iir; use dsp::iir;
use hardware::{Adc0Input, Adc1Input, Dac0Output, Dac1Output, AFE0, AFE1}; use hardware::{
Adc0Input, Adc1Input, AfeGain, CycleCounter, Dac0Output, Dac1Output,
NetworkStack, AFE0, AFE1,
};
const SCALE: f32 = i16::MAX as _; const SCALE: f32 = i16::MAX as _;
const TCP_RX_BUFFER_SIZE: usize = 8192;
const TCP_TX_BUFFER_SIZE: usize = 8192;
// The number of cascaded IIR biquads per channel. Select 1 or 2! // The number of cascaded IIR biquads per channel. Select 1 or 2!
const IIR_CASCADE_LENGTH: usize = 1; const IIR_CASCADE_LENGTH: usize = 1;
#[derive(Debug, Deserialize, StringSet)]
pub struct Settings {
afe: [AfeGain; 2],
iir_ch: [[iir::IIR; IIR_CASCADE_LENGTH]; 2],
}
impl Default for Settings {
fn default() -> Self {
Self {
afe: [AfeGain::G1, AfeGain::G1],
iir_ch: [[iir::IIR::new(1., -SCALE, SCALE); IIR_CASCADE_LENGTH]; 2],
}
}
}
#[rtic::app(device = stm32h7xx_hal::stm32, peripherals = true, monotonic = rtic::cyccnt::CYCCNT)] #[rtic::app(device = stm32h7xx_hal::stm32, peripherals = true, monotonic = rtic::cyccnt::CYCCNT)]
const APP: () = { const APP: () = {
struct Resources { struct Resources {
afes: (AFE0, AFE1), afes: (AFE0, AFE1),
adcs: (Adc0Input, Adc1Input), adcs: (Adc0Input, Adc1Input),
dacs: (Dac0Output, Dac1Output), dacs: (Dac0Output, Dac1Output),
net_interface: hardware::Ethernet, mqtt_interface:
MqttInterface<Settings, NetworkStack, minimq::consts::U256>,
clock: CycleCounter,
// Format: iir_state[ch][cascade-no][coeff] // Format: iir_state[ch][cascade-no][coeff]
#[init([[[0.; 5]; IIR_CASCADE_LENGTH]; 2])] #[init([[[0.; 5]; IIR_CASCADE_LENGTH]; 2])]
@ -44,6 +60,21 @@ const APP: () = {
// Configure the microcontroller // Configure the microcontroller
let (mut stabilizer, _pounder) = hardware::setup(c.core, c.device); let (mut stabilizer, _pounder) = hardware::setup(c.core, c.device);
let mqtt_interface = {
let mqtt_client = {
let broker = IpAddr::V4(Ipv4Addr::new(10, 34, 16, 1));
minimq::MqttClient::new(
broker,
"stabilizer",
stabilizer.net.stack,
)
.unwrap()
};
MqttInterface::new(mqtt_client, "stabilizer", Settings::default())
.unwrap()
};
// Enable ADC/DAC events // Enable ADC/DAC events
stabilizer.adcs.0.start(); stabilizer.adcs.0.start();
stabilizer.adcs.1.start(); stabilizer.adcs.1.start();
@ -54,10 +85,11 @@ const APP: () = {
stabilizer.adc_dac_timer.start(); stabilizer.adc_dac_timer.start();
init::LateResources { init::LateResources {
mqtt_interface,
afes: stabilizer.afes, afes: stabilizer.afes,
adcs: stabilizer.adcs, adcs: stabilizer.adcs,
dacs: stabilizer.dacs, dacs: stabilizer.dacs,
net_interface: stabilizer.net.interface, clock: stabilizer.cycle_counter,
} }
} }
@ -106,159 +138,44 @@ const APP: () = {
} }
} }
#[idle(resources=[net_interface, iir_state, iir_ch, afes])] #[idle(resources=[mqtt_interface, clock], spawn=[settings_update])]
fn idle(mut c: idle::Context) -> ! { fn idle(mut c: idle::Context) -> ! {
let mut socket_set_entries: [_; 8] = Default::default(); let clock = c.resources.clock;
let mut sockets =
smoltcp::socket::SocketSet::new(&mut socket_set_entries[..]);
let mut rx_storage = [0; TCP_RX_BUFFER_SIZE];
let mut tx_storage = [0; TCP_TX_BUFFER_SIZE];
let tcp_handle = {
let tcp_rx_buffer =
smoltcp::socket::TcpSocketBuffer::new(&mut rx_storage[..]);
let tcp_tx_buffer =
smoltcp::socket::TcpSocketBuffer::new(&mut tx_storage[..]);
let tcp_socket =
smoltcp::socket::TcpSocket::new(tcp_rx_buffer, tcp_tx_buffer);
sockets.add(tcp_socket)
};
let mut server = server::Server::new();
let mut time = 0u32;
let mut next_ms = Instant::now();
// TODO: Replace with reference to CPU clock from CCDR.
next_ms += 400_000.cycles();
loop { loop {
let tick = Instant::now() > next_ms; let sleep = c.resources.mqtt_interface.lock(|interface| {
!interface.network_stack().poll(clock.current_ms())
if tick { });
next_ms += 400_000.cycles();
time += 1;
}
match c
.resources
.mqtt_interface
.lock(|interface| interface.update().unwrap())
{ {
let socket = miniconf::Action::Continue => {
&mut *sockets.get::<smoltcp::socket::TcpSocket>(tcp_handle); if sleep {
if socket.state() == smoltcp::socket::TcpState::CloseWait { cortex_m::asm::wfi();
socket.close(); }
} else if !(socket.is_open() || socket.is_listening()) {
socket
.listen(1235)
.unwrap_or_else(|e| warn!("TCP listen error: {:?}", e));
} else {
server.poll(socket, |req| {
info!("Got request: {:?}", req);
stabilizer::route_request!(req,
readable_attributes: [
"stabilizer/iir/state": (|| {
let state = c.resources.iir_state.lock(|iir_state|
server::Status {
t: time,
x0: iir_state[0][0][0],
y0: iir_state[0][0][2],
x1: iir_state[1][0][0],
y1: iir_state[1][0][2],
});
Ok::<server::Status, ()>(state)
}),
// "_b" means cascades 2nd IIR
"stabilizer/iir_b/state": (|| { let state = c.resources.iir_state.lock(|iir_state|
server::Status {
t: time,
x0: iir_state[0][IIR_CASCADE_LENGTH-1][0],
y0: iir_state[0][IIR_CASCADE_LENGTH-1][2],
x1: iir_state[1][IIR_CASCADE_LENGTH-1][0],
y1: iir_state[1][IIR_CASCADE_LENGTH-1][2],
});
Ok::<server::Status, ()>(state)
}),
"stabilizer/afe0/gain": (|| c.resources.afes.0.get_gain()),
"stabilizer/afe1/gain": (|| c.resources.afes.1.get_gain())
],
modifiable_attributes: [
"stabilizer/iir0/state": server::IirRequest, (|req: server::IirRequest| {
c.resources.iir_ch.lock(|iir_ch| {
if req.channel > 1 {
return Err(());
}
iir_ch[req.channel as usize][0] = req.iir;
Ok::<server::IirRequest, ()>(req)
})
}),
"stabilizer/iir1/state": server::IirRequest, (|req: server::IirRequest| {
c.resources.iir_ch.lock(|iir_ch| {
if req.channel > 1 {
return Err(());
}
iir_ch[req.channel as usize][0] = req.iir;
Ok::<server::IirRequest, ()>(req)
})
}),
"stabilizer/iir_b0/state": server::IirRequest, (|req: server::IirRequest| {
c.resources.iir_ch.lock(|iir_ch| {
if req.channel > 1 {
return Err(());
}
iir_ch[req.channel as usize][IIR_CASCADE_LENGTH-1] = req.iir;
Ok::<server::IirRequest, ()>(req)
})
}),
"stabilizer/iir_b1/state": server::IirRequest,(|req: server::IirRequest| {
c.resources.iir_ch.lock(|iir_ch| {
if req.channel > 1 {
return Err(());
}
iir_ch[req.channel as usize][IIR_CASCADE_LENGTH-1] = req.iir;
Ok::<server::IirRequest, ()>(req)
})
}),
"stabilizer/afe0/gain": hardware::AfeGain, (|gain| {
c.resources.afes.0.set_gain(gain);
Ok::<(), ()>(())
}),
"stabilizer/afe1/gain": hardware::AfeGain, (|gain| {
c.resources.afes.1.set_gain(gain);
Ok::<(), ()>(())
})
]
)
});
} }
} miniconf::Action::CommitSettings => {
c.spawn.settings_update().unwrap()
let sleep = match c.resources.net_interface.poll(
&mut sockets,
smoltcp::time::Instant::from_millis(time as i64),
) {
Ok(changed) => !changed,
Err(smoltcp::Error::Unrecognized) => true,
Err(e) => {
info!("iface poll error: {:?}", e);
true
} }
};
if sleep {
cortex_m::asm::wfi();
} }
} }
} }
#[task(priority = 1, resources=[mqtt_interface, afes, iir_ch])]
fn settings_update(mut c: settings_update::Context) {
let settings = &c.resources.mqtt_interface.settings;
// Update the IIR channels.
c.resources.iir_ch.lock(|iir| *iir = settings.iir_ch);
// Update AFEs
c.resources.afes.0.set_gain(settings.afe[0]);
c.resources.afes.1.set_gain(settings.afe[1]);
}
#[task(binds = ETH, priority = 1)] #[task(binds = ETH, priority = 1)]
fn eth(_: eth::Context) { fn eth(_: eth::Context) {
unsafe { hal::ethernet::interrupt_handler() } unsafe { hal::ethernet::interrupt_handler() }

View File

@ -17,7 +17,6 @@ const APP: () = {
afes: (AFE0, AFE1), afes: (AFE0, AFE1),
adcs: (Adc0Input, Adc1Input), adcs: (Adc0Input, Adc1Input),
dacs: (Dac0Output, Dac1Output), dacs: (Dac0Output, Dac1Output),
net_interface: hardware::Ethernet,
timestamper: InputStamper, timestamper: InputStamper,
pll: RPLL, pll: RPLL,
@ -53,7 +52,6 @@ const APP: () = {
afes: stabilizer.afes, afes: stabilizer.afes,
adcs: stabilizer.adcs, adcs: stabilizer.adcs,
dacs: stabilizer.dacs, dacs: stabilizer.dacs,
net_interface: stabilizer.net.interface,
timestamper: stabilizer.timestamper, timestamper: stabilizer.timestamper,
pll, pll,

View File

@ -1,9 +1,12 @@
use miniconf::StringSet;
use serde::{Deserialize, Serialize}; use serde::{Deserialize, Serialize};
use core::convert::TryFrom; use core::convert::TryFrom;
use enum_iterator::IntoEnumIterator; use enum_iterator::IntoEnumIterator;
#[derive(Copy, Clone, Debug, Serialize, Deserialize, IntoEnumIterator)] #[derive(
Copy, Clone, Debug, Serialize, Deserialize, IntoEnumIterator, StringSet,
)]
pub enum Gain { pub enum Gain {
G1 = 0b00, G1 = 0b00,
G2 = 0b01, G2 = 0b01,

View File

@ -1,32 +1,36 @@
///! Stabilizer hardware configuration ///! Stabilizer hardware configuration
///! ///!
///! This file contains all of the hardware-specific configuration of Stabilizer. ///! This file contains all of the hardware-specific configuration of Stabilizer.
use smoltcp::{iface::Routes, wire::Ipv4Address};
use stm32h7xx_hal::{ use stm32h7xx_hal::{
self as hal, self as hal,
ethernet::{self, PHY}, ethernet::{self, PHY},
prelude::*, prelude::*,
}; };
use smoltcp_nal::smoltcp;
use embedded_hal::digital::v2::{InputPin, OutputPin}; use embedded_hal::digital::v2::{InputPin, OutputPin};
use super::{ use super::{
adc, afe, dac, design_parameters, digital_input_stamper, eeprom, pounder, adc, afe, cycle_counter::CycleCounter, dac, design_parameters,
timers, DdsOutput, Ethernet, AFE0, AFE1, digital_input_stamper, eeprom, pounder, timers, DdsOutput, NetworkStack,
AFE0, AFE1,
}; };
// Network storage definition for the ethernet interface. pub struct NetStorage {
struct NetStorage { pub ip_addrs: [smoltcp::wire::IpCidr; 1],
ip_addrs: [smoltcp::wire::IpCidr; 1], pub sockets: [Option<smoltcp::socket::SocketSetItem<'static>>; 1],
neighbor_cache: pub neighbor_cache:
[Option<(smoltcp::wire::IpAddress, smoltcp::iface::Neighbor)>; 8], [Option<(smoltcp::wire::IpAddress, smoltcp::iface::Neighbor)>; 8],
routes_storage: [Option<(smoltcp::wire::IpCidr, smoltcp::iface::Route)>; 1], pub routes_cache:
[Option<(smoltcp::wire::IpCidr, smoltcp::iface::Route)>; 8],
pub tx_storage: [u8; 4096],
pub rx_storage: [u8; 4096],
} }
/// The available networking devices on Stabilizer. /// The available networking devices on Stabilizer.
pub struct NetworkDevices { pub struct NetworkDevices {
pub interface: Ethernet, pub stack: NetworkStack,
pub phy: ethernet::phy::LAN8742A<ethernet::EthernetMAC>, pub phy: ethernet::phy::LAN8742A<ethernet::EthernetMAC>,
} }
@ -39,6 +43,7 @@ pub struct StabilizerDevices {
pub adc_dac_timer: timers::SamplingTimer, pub adc_dac_timer: timers::SamplingTimer,
pub timestamp_timer: timers::TimestampTimer, pub timestamp_timer: timers::TimestampTimer,
pub net: NetworkDevices, pub net: NetworkDevices,
pub cycle_counter: CycleCounter,
} }
/// The available Pounder-specific hardware interfaces. /// The available Pounder-specific hardware interfaces.
@ -63,7 +68,11 @@ static mut NET_STORE: NetStorage = NetStorage {
smoltcp::wire::Ipv6Cidr::SOLICITED_NODE_PREFIX, smoltcp::wire::Ipv6Cidr::SOLICITED_NODE_PREFIX,
)], )],
neighbor_cache: [None; 8], neighbor_cache: [None; 8],
routes_storage: [None; 1], routes_cache: [None; 8],
sockets: [None; 1],
tx_storage: [0; 4096],
rx_storage: [0; 4096],
}; };
/// Configure the stabilizer hardware for operation. /// Configure the stabilizer hardware for operation.
@ -514,8 +523,9 @@ pub fn setup(
24, 24,
); );
let default_v4_gw = Ipv4Address::new(10, 34, 16, 1); let default_v4_gw = smoltcp::wire::Ipv4Address::new(10, 34, 16, 1);
let mut routes = Routes::new(&mut store.routes_storage[..]); let mut routes =
smoltcp::iface::Routes::new(&mut store.routes_cache[..]);
routes.add_default_ipv4_route(default_v4_gw).unwrap(); routes.add_default_ipv4_route(default_v4_gw).unwrap();
let neighbor_cache = let neighbor_cache =
@ -528,8 +538,36 @@ pub fn setup(
.routes(routes) .routes(routes)
.finalize(); .finalize();
let sockets = {
// Note(unsafe): Configuration is only called once, so we only access the global
// storage a single time.
let socket_storage = unsafe { &mut NET_STORE.sockets[..] };
let mut sockets = smoltcp::socket::SocketSet::new(socket_storage);
let tcp_socket = {
let rx_buffer = {
// Note(unsafe): Configuration is only called once, so we only access the global
// storage a single time.
let storage = unsafe { &mut NET_STORE.rx_storage[..] };
smoltcp::socket::TcpSocketBuffer::new(storage)
};
let tx_buffer = {
// Note(unsafe): Configuration is only called once, so we only access the global
// storage a single time.
let storage = unsafe { &mut NET_STORE.tx_storage[..] };
smoltcp::socket::TcpSocketBuffer::new(storage)
};
smoltcp::socket::TcpSocket::new(rx_buffer, tx_buffer)
};
sockets.add(tcp_socket);
sockets
};
NetworkDevices { NetworkDevices {
interface, stack: smoltcp_nal::NetworkStack::new(interface, sockets),
phy: lan8742a, phy: lan8742a,
} }
}; };
@ -795,6 +833,7 @@ pub fn setup(
net: network_devices, net: network_devices,
adc_dac_timer: sampling_timer, adc_dac_timer: sampling_timer,
timestamp_timer, timestamp_timer,
cycle_counter: CycleCounter::new(core.DWT, ccdr.clocks.c_ck()),
}; };
// info!("Version {} {}", build_info::PKG_VERSION, build_info::GIT_VERSION.unwrap()); // info!("Version {} {}", build_info::PKG_VERSION, build_info::GIT_VERSION.unwrap());
@ -804,8 +843,5 @@ pub fn setup(
// Enable the instruction cache. // Enable the instruction cache.
core.SCB.enable_icache(); core.SCB.enable_icache();
// Utilize the cycle counter for RTIC scheduling.
core.DWT.enable_cycle_counter();
(stabilizer, pounder) (stabilizer, pounder)
} }

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@ -0,0 +1,66 @@
use rtic::cyccnt::{Duration, Instant, U32Ext};
use stm32h7xx_hal::time::Hertz;
/// A simple clock for counting elapsed milliseconds.
pub struct CycleCounter {
// The time of the next millisecond in the system.
next_tick: Option<Instant>,
// The number of elapsed milliseconds recorded.
ticks: u32,
// The increment amount of clock cycles for each elapsed millisecond.
increment: Duration,
}
impl CycleCounter {
/// Construct the cycle counting clock.
///
/// # Args
/// * `dwt` - The debug watch and trace unit of the CPU core.
/// * `cpu_frequency` - The frequency that the cycle counter counts at.
///
/// # Returns
/// A clock that can be used for measuring elapsed milliseconds.
pub fn new(
mut dwt: cortex_m::peripheral::DWT,
cpu_frequency: impl Into<Hertz>,
) -> Self {
dwt.enable_cycle_counter();
let increment =
((cpu_frequency.into().0 as f32 / 1000.0) as u32).cycles();
Self {
increment,
ticks: 0,
next_tick: None,
}
}
/// Get the current number of milliseconds elapsed in the system.
///
/// # Note
/// This function must be called more often than once per 10 seconds to prevent internal
/// wrapping of the cycle counter.
///
/// The internal millisecond accumulator will overflow just shy of every 50 days.
///
/// This function does not start counting milliseconds until the very first invocation.
///
/// # Returns
/// The number of elapsed milliseconds since the system started.
pub fn current_ms(&mut self) -> u32 {
if self.next_tick.is_none() {
self.next_tick = Some(Instant::now() + self.increment);
}
let now = Instant::now();
while now > self.next_tick.unwrap() {
*self.next_tick.as_mut().unwrap() += self.increment;
self.ticks += 1;
}
self.ticks
}
}

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@ -10,6 +10,7 @@ use panic_halt as _;
mod adc; mod adc;
mod afe; mod afe;
mod configuration; mod configuration;
mod cycle_counter;
mod dac; mod dac;
pub mod design_parameters; pub mod design_parameters;
mod digital_input_stamper; mod digital_input_stamper;
@ -19,6 +20,7 @@ mod timers;
pub use adc::{Adc0Input, Adc1Input}; pub use adc::{Adc0Input, Adc1Input};
pub use afe::Gain as AfeGain; pub use afe::Gain as AfeGain;
pub use cycle_counter::CycleCounter;
pub use dac::{Dac0Output, Dac1Output}; pub use dac::{Dac0Output, Dac1Output};
pub use digital_input_stamper::InputStamper; pub use digital_input_stamper::InputStamper;
pub use pounder::DdsOutput; pub use pounder::DdsOutput;
@ -35,8 +37,8 @@ pub type AFE1 = afe::ProgrammableGainAmplifier<
hal::gpio::gpiod::PD15<hal::gpio::Output<hal::gpio::PushPull>>, hal::gpio::gpiod::PD15<hal::gpio::Output<hal::gpio::PushPull>>,
>; >;
// Type alias for the ethernet interface on Stabilizer. pub type NetworkStack = smoltcp_nal::NetworkStack<
pub type Ethernet = smoltcp::iface::EthernetInterface< 'static,
'static, 'static,
hal::ethernet::EthernetDMA<'static>, hal::ethernet::EthernetDMA<'static>,
>; >;

View File

@ -5,4 +5,3 @@
extern crate log; extern crate log;
pub mod hardware; pub mod hardware;
pub mod server;

View File

@ -1,278 +0,0 @@
use core::fmt::Write;
use heapless::{consts::*, String, Vec};
use serde::{Deserialize, Serialize};
use serde_json_core::{de::from_slice, ser::to_string};
use smoltcp as net;
use dsp::iir;
#[macro_export]
macro_rules! route_request {
($request:ident,
readable_attributes: [$($read_attribute:tt: $getter:tt),*],
modifiable_attributes: [$($write_attribute:tt: $TYPE:ty, $setter:tt),*]) => {
match $request.req {
server::AccessRequest::Read => {
match $request.attribute {
$(
$read_attribute => {
#[allow(clippy::redundant_closure_call)]
let value = match $getter() {
Ok(data) => data,
Err(_) => return server::Response::error($request.attribute,
"Failed to read attribute"),
};
let encoded_data: String<U256> = match serde_json_core::to_string(&value) {
Ok(data) => data,
Err(_) => return server::Response::error($request.attribute,
"Failed to encode attribute value"),
};
server::Response::success($request.attribute, &encoded_data)
},
)*
_ => server::Response::error($request.attribute, "Unknown attribute")
}
},
server::AccessRequest::Write => {
match $request.attribute {
$(
$write_attribute => {
let new_value = match serde_json_core::from_str::<$TYPE>(&$request.value) {
Ok((data, _)) => data,
Err(_) => return server::Response::error($request.attribute,
"Failed to decode value"),
};
#[allow(clippy::redundant_closure_call)]
match $setter(new_value) {
Ok(_) => server::Response::success($request.attribute, &$request.value),
Err(_) => server::Response::error($request.attribute,
"Failed to set attribute"),
}
}
)*
_ => server::Response::error($request.attribute, "Unknown attribute")
}
}
}
}
}
#[derive(Deserialize, Serialize, Debug)]
pub enum AccessRequest {
Read,
Write,
}
#[derive(Deserialize, Serialize, Debug)]
pub struct Request<'a> {
pub req: AccessRequest,
pub attribute: &'a str,
pub value: String<U256>,
}
#[derive(Serialize, Deserialize)]
pub struct IirRequest {
pub channel: u8,
pub iir: iir::IIR,
}
#[derive(Serialize)]
pub struct Response {
code: i32,
attribute: String<U256>,
value: String<U256>,
}
impl<'a> Request<'a> {
pub fn restore_value(&mut self) {
let mut new_value: String<U256> = String::new();
for byte in self.value.as_str().chars() {
if byte == '\'' {
new_value.push('"').unwrap();
} else {
new_value.push(byte).unwrap();
}
}
self.value = new_value;
}
}
impl Response {
/// Remove all double quotation marks from the `value` field of a response.
fn sanitize_value(&mut self) {
let mut new_value: String<U256> = String::new();
for byte in self.value.as_str().chars() {
if byte == '"' {
new_value.push('\'').unwrap();
} else {
new_value.push(byte).unwrap();
}
}
self.value = new_value;
}
/// Remove all double quotation marks from the `value` field of a response and wrap it in single
/// quotes.
fn wrap_and_sanitize_value(&mut self) {
let mut new_value: String<U256> = String::new();
new_value.push('\'').unwrap();
for byte in self.value.as_str().chars() {
if byte == '"' {
new_value.push('\'').unwrap();
} else {
new_value.push(byte).unwrap();
}
}
new_value.push('\'').unwrap();
self.value = new_value;
}
/// Construct a successful reply.
///
/// Note: `value` will be sanitized to convert all single quotes to double quotes.
///
/// Args:
/// * `attrbute` - The attribute of the success.
/// * `value` - The value of the attribute.
pub fn success(attribute: &str, value: &str) -> Self {
let mut res = Self {
code: 200,
attribute: String::from(attribute),
value: String::from(value),
};
res.sanitize_value();
res
}
/// Construct an error reply.
///
/// Note: `message` will be sanitized to convert all single quotes to double quotes.
///
/// Args:
/// * `attrbute` - The attribute of the success.
/// * `message` - The message denoting the error.
pub fn error(attribute: &str, message: &str) -> Self {
let mut res = Self {
code: 400,
attribute: String::from(attribute),
value: String::from(message),
};
res.wrap_and_sanitize_value();
res
}
/// Construct a custom reply.
///
/// Note: `message` will be sanitized to convert all single quotes to double quotes.
///
/// Args:
/// * `attrbute` - The attribute of the success.
/// * `message` - The message denoting the status.
pub fn custom(code: i32, message: &str) -> Self {
let mut res = Self {
code,
attribute: String::from(""),
value: String::from(message),
};
res.wrap_and_sanitize_value();
res
}
}
#[derive(Serialize)]
pub struct Status {
pub t: u32,
pub x0: f32,
pub y0: f32,
pub x1: f32,
pub y1: f32,
}
pub fn json_reply<T: Serialize>(socket: &mut net::socket::TcpSocket, msg: &T) {
let mut u: String<U512> = to_string(msg).unwrap();
u.push('\n').unwrap();
socket.write_str(&u).unwrap();
}
pub struct Server {
data: Vec<u8, U256>,
discard: bool,
}
impl Server {
/// Construct a new server object for managing requests.
pub fn new() -> Self {
Self {
data: Vec::new(),
discard: false,
}
}
/// Poll the server for potential data updates.
///
/// Args:
/// * `socket` - The socket to check contents from.
/// * `f` - A closure that can be called if a request has been received on the server.
pub fn poll<F>(&mut self, socket: &mut net::socket::TcpSocket, mut f: F)
where
F: FnMut(&Request) -> Response,
{
while socket.can_recv() {
let found = socket
.recv(|buf| {
let (len, found) =
match buf.iter().position(|&c| c as char == '\n') {
Some(end) => (end + 1, true),
None => (buf.len(), false),
};
if self.data.len() + len >= self.data.capacity() {
self.discard = true;
self.data.clear();
} else if !self.discard && len > 0 {
self.data.extend_from_slice(&buf[..len]).unwrap();
}
(len, found)
})
.unwrap();
if found {
if self.discard {
self.discard = false;
json_reply(
socket,
&Response::custom(520, "command buffer overflow"),
);
} else {
let r = from_slice::<Request>(
&self.data[..self.data.len() - 1],
);
match r {
Ok((mut res, _)) => {
// Note that serde_json_core doesn't escape quotations within a string.
// To account for this, we manually translate all single quotes to
// double quotes. This occurs because we doubly-serialize this field in
// some cases.
res.restore_value();
let response = f(&res);
json_reply(socket, &response);
}
Err(err) => {
warn!("parse error {:?}", err);
json_reply(
socket,
&Response::custom(550, "parse error"),
);
}
}
}
self.data.clear();
}
}
}
}

View File

@ -1,112 +0,0 @@
import json
import asyncio
from collections import OrderedDict as OD
import logging
import numpy as np
logger = logging.getLogger()
class StabilizerError(Exception):
pass
class StabilizerConfig:
async def connect(self, host, port=1235):
self.reader, self.writer = await asyncio.open_connection(host, port)
async def set(self, channel, iir):
value = OD([("channel", channel), ("iir", iir.as_dict())])
request = {
"req": "Write",
"attribute": "stabilizer/iir{}/state".format(channel),
"value": json.dumps(value, separators=[',', ':']).replace('"', "'"),
}
s = json.dumps(request, separators=[',', ':'])
assert "\n" not in s
logger.debug("send %s", s)
self.writer.write(s.encode("ascii") + b"\n")
r = (await self.reader.readline()).decode()
logger.debug("recv %s", r)
ret = json.loads(r, object_pairs_hook=OD)
if ret["code"] != 200:
raise StabilizerError(ret)
return ret
class IIR:
t_update = 2e-6
full_scale = float((1 << 15) - 1)
def __init__(self):
self.ba = np.zeros(5, np.float32)
self.y_offset = 0.
self.y_min = -self.full_scale - 1
self.y_max = self.full_scale
def as_dict(self):
iir = OD()
iir["ba"] = [float(_) for _ in self.ba]
iir["y_offset"] = self.y_offset
iir["y_min"] = self.y_min
iir["y_max"] = self.y_max
return iir
def configure_pi(self, kp, ki, g=0.):
ki = np.copysign(ki, kp)*self.t_update*2
g = np.copysign(g, kp)
eps = np.finfo(np.float32).eps
if abs(ki) < eps:
a1, b0, b1 = 0., kp, 0.
else:
if abs(g) < eps:
c = 1.
else:
c = 1./(1. + ki/g)
a1 = 2*c - 1.
b0 = ki*c + kp
b1 = ki*c - a1*kp
if abs(b0 + b1) < eps:
raise ValueError("low integrator gain and/or gain limit")
self.ba[0] = b0
self.ba[1] = b1
self.ba[2] = 0.
self.ba[3] = a1
self.ba[4] = 0.
def set_x_offset(self, o):
b = self.ba[:3].sum()*self.full_scale
self.y_offset = b*o
if __name__ == "__main__":
import argparse
p = argparse.ArgumentParser()
p.add_argument("-s", "--stabilizer", default="10.0.16.99")
p.add_argument("-c", "--channel", default=0, type=int,
help="Stabilizer channel to configure")
p.add_argument("-o", "--offset", default=0., type=float,
help="input offset, in units of full scale")
p.add_argument("-p", "--proportional-gain", default=1., type=float,
help="Proportional gain, in units of 1")
p.add_argument("-i", "--integral-gain", default=0., type=float,
help="Integral gain, in units of Hz, "
"sign taken from proportional-gain")
args = p.parse_args()
loop = asyncio.get_event_loop()
# loop.set_debug(True)
logging.basicConfig(level=logging.DEBUG)
async def main():
i = IIR()
i.configure_pi(args.proportional_gain, args.integral_gain)
i.set_x_offset(args.offset)
s = StabilizerConfig()
await s.connect(args.stabilizer)
assert args.channel in range(2)
r = await s.set(args.channel, i)
loop.run_until_complete(main())