Merge branch 'master' into new-pac

* master:
  python configuration tool
  json command interface
  use serde-json-core [wip]
  README: try SVG again
  add Nix build files
  png
  README: diagram and photo
master
Robert Jördens 2019-05-27 18:49:51 +00:00
commit d6b37e6c0e
15 changed files with 11999 additions and 207 deletions

248
Cargo.lock generated
View File

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"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
"checksum serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)" = "aa5f7c20820475babd2c077c3ab5f8c77a31c15e16ea38687b4c02d3e48680f4"
"checksum smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)" = "c4488ae950c49d403731982257768f48fada354a5203fe81f9bb6f43ca9002be"
"checksum serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)" = "a72e9b96fa45ce22a4bc23da3858dfccfd60acd28a25bcd328a98fdd6bea43fd"
"checksum serde_derive 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)" = "101b495b109a3e3ca8c4cbe44cf62391527cdfb6ba15821c5ce80bcd5ea23f9f"
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"checksum static_assertions 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "c19be23126415861cb3a23e501d34a708f7f9b2183c5252d690941c2e69199d5"
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"checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
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"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

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@ -33,6 +33,13 @@ cortex-m-log = { version = "0.5", features = ["log-integration"] }
log = "0.4"
panic-abort = "0.3"
panic-semihosting = { version = "0.5.2", optional = true }
serde-json-core = { version = "0.0" }
serde = { version = "1.0", features = ["derive"], default-features = false }
heapless = { version = "0.4" }
[patch.crates-io]
serde-json-core = { path = "../serde-json-core" }
lexical-core = { path = "../rust-lexical/lexical-core" }
[dependencies.stm32h7]
path = "../stm32-rs/stm32h7"
@ -49,9 +56,6 @@ default-features = false
semihosting = ["panic-semihosting", "cortex-m-log/semihosting"]
bkpt = [ ]
[build-dependencies]
built = "0.3"
[profile.dev]
codegen-units = 1
incremental = false

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@ -1,5 +1,9 @@
# Stabilizer Firmware
![Flow diagram](stabilizer_pid.svg)
![Hardware](https://github.com/sinara-hw/Stabilizer/wiki/Stabilizer_v1.0_top_small.jpg)
## Features
* dual channel

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@ -1,19 +0,0 @@
extern crate built;
use std::env;
use std::fs::File;
use std::io::Write;
use std::path::PathBuf;
fn main() {
// Gather build information
built::write_built_file().expect("Failed to acquire build-time information");
// Put the linker script somewhere the linker can find it
let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
File::create(out.join("memory.x"))
.unwrap()
.write_all(include_bytes!("memory.x"))
.unwrap();
println!("cargo:rustc-link-search={}", out.display());
}

32
default.nix Normal file
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@ -0,0 +1,32 @@
{ # Use master branch of the overlay by default
mozillaOverlay ? import (builtins.fetchTarball https://github.com/mozilla/nixpkgs-mozilla/archive/master.tar.gz),
rustManifest ? builtins.fetchurl "https://static.rust-lang.org/dist/channel-rust-nightly.toml"
}:
let
pkgs = import <nixpkgs> { overlays = [ mozillaOverlay ]; };
in
with pkgs;
let
rustPlatform = recurseIntoAttrs (callPackage ./nix/rustPlatform.nix {
inherit rustManifest;
});
stabilizer = callPackage ./nix/stabilizer.nix { inherit rustPlatform; };
in
stdenv.mkDerivation {
name = "stabilizer-dist";
buildInputs = [ stabilizer ];
src = ./.;
dontBuild = true;
installPhase =
let
firmwareBinary = "$out/lib/stabilizer.elf";
in ''
mkdir -p $out/bin $out/lib $out/nix-support
ln -s ${stabilizer}/lib/stabilizer ${firmwareBinary}
echo file binary-dist ${firmwareBinary} >> $out/nix-support/hydra-build-products
'';
}

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49
nix/fetchcargo.nix Normal file
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@ -0,0 +1,49 @@
{ stdenv, cacert, git, cargo, cargo-vendor }:
{ name, src, sha256 }:
let
# `src` restricted to the two files that define dependencies
cargoOnlySrc = stdenv.mkDerivation {
name = "${name}-cargo";
inherit src;
phases = "installPhase";
installPhase = ''
mkdir $out
cp ${src}/Cargo.{toml,lock} $out/
mkdir $out/src
touch $out/src/main.rs
'';
};
in
stdenv.mkDerivation {
name = "${name}-vendor";
nativeBuildInputs = [ cacert git cargo cargo-vendor ];
src = cargoOnlySrc;
phases = "unpackPhase patchPhase installPhase";
installPhase = ''
if [[ ! -f Cargo.lock ]]; then
echo
echo "ERROR: The Cargo.lock file doesn't exist"
echo
echo "Cargo.lock is needed to make sure that cargoSha256 doesn't change"
echo "when the registry is updated."
echo
exit 1
fi
export CARGO_HOME=$(mktemp -d cargo-home.XXX)
cargo vendor
cp -ar vendor $out
'';
outputHashAlgo = "sha256";
outputHashMode = "recursive";
outputHash = sha256;
impureEnvVars = stdenv.lib.fetchers.proxyImpureEnvVars;
preferLocalBuild = true;
}

23
nix/rustPlatform.nix Normal file
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@ -0,0 +1,23 @@
{ recurseIntoAttrs, stdenv, lib,
makeRustPlatform,
fetchurl, patchelf,
rustManifest ? ./channel-rust-nightly.toml
}:
let
targets = [
"thumbv7em-none-eabihf"
];
rustChannel =
lib.rustLib.fromManifestFile rustManifest {
inherit stdenv fetchurl patchelf;
};
rust =
rustChannel.rust.override {
inherit targets;
};
in
makeRustPlatform {
rustc = rust;
cargo = rust;
}

45
nix/stabilizer.nix Normal file
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@ -0,0 +1,45 @@
{ stdenv, rustPlatform, cacert, git, cargo-vendor }:
with rustPlatform;
let
sha256 = "1m4cxf6c4lh28xv4iagp20ni97cya1f12yg58q0m733qahk8gncb";
fetchcargo = import ./fetchcargo.nix {
inherit stdenv cacert git cargo-vendor;
inherit (rust) cargo;
};
stabilizerDeps = fetchcargo {
name = "stabilizer";
src = ../.;
inherit sha256;
};
in
buildRustPackage rec {
name = "stabilizer";
version = "0.0.0";
src = ../.;
cargoSha256 = sha256;
buildInputs = [ stabilizerDeps ];
patchPhase = ''
cat >> .cargo/config <<EOF
[source.crates-io]
replace-with = "vendored-sources"
[source.vendored-sources]
directory = "${stabilizerDeps}"
EOF
'';
buildPhase = ''
export CARGO_HOME=$(mktemp -d cargo-home.XXX)
cargo build --release
'';
doCheck = false;
installPhase = ''
mkdir -p $out/lib
cp target/thumbv7em-none-eabihf/release/stabilizer $out/lib/
'';
}

15
release.nix Normal file
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@ -0,0 +1,15 @@
# For running on Hydra
{ pkgs ? import <nixpkgs> {},
rustManifest ? ./nix/channel-rust-nightly.toml
}:
with pkgs;
let
stabilizer = callPackage ./default.nix {
inherit rustManifest;
mozillaOverlay = import <mozillaOverlay>;
};
in
{
build = lib.hydraJob stabilizer;
}

View File

@ -1,10 +1,11 @@
use core::ops::{Add, Mul};
use serde::{Serialize, Deserialize};
use core::f32;
pub type IIRState = [f32; 5];
#[derive(Copy,Clone)]
#[derive(Copy,Clone,Deserialize,Serialize)]
pub struct IIR {
pub ba: IIRState,
pub y_offset: f32,

View File

@ -14,14 +14,18 @@ extern crate log;
use core::ptr;
use core::cell::RefCell;
use core::fmt::Write;
use core::sync::atomic::{AtomicU32, AtomicBool, Ordering};
use core::fmt::Write;
use cortex_m_rt::{entry, exception};
use stm32h7::stm32h7x3::{self as stm32, Peripherals, CorePeripherals, interrupt};
use cortex_m::interrupt::Mutex;
use heapless::{String, Vec, consts::*};
use smoltcp as net;
use serde::{Serialize, Deserialize};
use serde_json_core::{ser::to_string, de::from_slice};
mod eth;
mod iir;
@ -50,7 +54,7 @@ fn init_log() {
// Pull in build information (from `built` crate)
mod build_info {
#![allow(dead_code)]
include!(concat!(env!("OUT_DIR"), "/built.rs"));
// include!(concat!(env!("OUT_DIR"), "/built.rs"));
}
fn pwr_setup(pwr: &stm32::PWR) {
@ -625,6 +629,7 @@ fn main() -> ! {
let mut socket_set_entries: [_; 8] = Default::default();
let mut sockets = net::socket::SocketSet::new(&mut socket_set_entries[..]);
create_socket!(sockets, tcp_rx_storage0, tcp_tx_storage0, tcp_handle0);
create_socket!(sockets, tcp_rx_storage0, tcp_tx_storage0, tcp_handle1);
unsafe { eth::enable_interrupt(&dp.ETHERNET_DMA); }
unsafe { cp.NVIC.set_priority(stm32::Interrupt::ETH, 196); } // mid prio
@ -645,16 +650,28 @@ fn main() -> ! {
{
let socket = &mut *sockets.get::<net::socket::TcpSocket>(tcp_handle0);
if !(socket.is_open() || socket.is_listening()) {
socket.listen(80).unwrap_or_else(|e| warn!("TCP listen error: {:?}", e));
socket.listen(1234).unwrap_or_else(|e| warn!("TCP listen error: {:?}", e));
} else if last != time && socket.can_send() {
last = time;
let (x0, y0, x1, y1) = unsafe {
(IIR_STATE[0][0], IIR_STATE[0][2], IIR_STATE[1][0], IIR_STATE[1][2]) };
writeln!(socket, "t={} x0={:.1} y0={:.1} x1={:.1} y1={:.1}",
time, x0, y0, x1, y1)
.unwrap_or_else(|e| warn!("TCP send error: {:?}", e));
let s = unsafe { Status{
t: time,
x0: IIR_STATE[0][0],
y0: IIR_STATE[0][2],
x1: IIR_STATE[1][0],
y1: IIR_STATE[1][2],
}};
send_response(socket, &s);
}
}
{
let socket = &mut *sockets.get::<net::socket::TcpSocket>(tcp_handle1);
if !(socket.is_open() || socket.is_listening()) {
socket.listen(1235).unwrap_or_else(|e| warn!("TCP listen error: {:?}", e));
} else {
handle_command(socket);
}
}
if !match iface.poll(&mut sockets, net::time::Instant::from_millis(time as i64)) {
Ok(changed) => changed,
Err(net::Error::Unrecognized) => true,
@ -665,6 +682,73 @@ fn main() -> ! {
}
}
#[derive(Deserialize,Serialize)]
struct Request {
channel: i8,
iir: IIR,
}
#[derive(Serialize)]
struct Response<'a> {
code: i32,
message: &'a str,
}
fn send_response<T: Serialize>(socket: &mut net::socket::TcpSocket, msg: &T) {
let mut u: String<U128> = to_string(msg).unwrap();
u.push('\n').unwrap();
socket.write_str(&u).unwrap();
}
fn handle_command(socket: &mut net::socket::TcpSocket) {
let mut data: Vec<u8, U256> = Vec::new();
let mut discard: bool = false;
while socket.can_recv() {
if 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 data.len() + len >= data.capacity() {
discard = true;
data.clear();
} else if !discard && len > 0 {
data.extend_from_slice(&buf[..len - 1]).unwrap();
}
(len, found)
}).unwrap() {
let resp = if discard {
discard = false;
Response{ code: 500, message: "command buffer overflow" }
} else {
match from_slice::<Request>(&data) {
Ok(request) => {
cortex_m::interrupt::free(|_| {
unsafe { IIR_CH[request.channel as usize] = request.iir; };
});
Response{ code: 200, message: "ok" }
},
Err(err) => {
warn!("parse error {}", err);
Response{ code: 550, message: "parse error" }
},
}
};
send_response(socket, &resp);
socket.close();
}
}
}
#[derive(Serialize)]
struct Status {
t: u32,
x0: f32,
y0: f32,
x1: f32,
y1: f32
}
const SCALE: f32 = ((1 << 15) - 1) as f32;
static mut IIR_STATE: [IIRState; 2] = [[0.; 5]; 2];
static mut IIR_CH: [IIR; 2] = [

104
stabilizer.py Normal file
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@ -0,0 +1,104 @@
import json
import asyncio
from collections import OrderedDict
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):
up = OrderedDict([("channel", channel), ("iir", iir.as_dict())])
s = json.dumps(up, separators=(",", ":"))
assert "\n" not in s
logger.debug("send %s", s)
self.writer.write(s.encode() + b"\n")
r = (await self.reader.readline()).decode()
logger.debug("recv %s", r)
ret = json.loads(r, object_pairs_hook=OrderedDict)
if ret["code"] != 200:
raise StabilizerError(ret)
return ret
class IIR:
t_update = 2e-6
def __init__(self):
self.ba = np.zeros(5, np.float32)
self.y_offset = 0.
self.y_min = -float(1 << 15)
self.y_max = float(1 << 15) - 1
def as_dict(self):
iir = OrderedDict()
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.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="X offset, in ADC LSB")
p.add_argument("-p", "--proportional-gain", default=1., type=float,
help="Proportional gain, in DAC LSB/ADC LSB")
p.add_argument("-i", "--integral-gain", default=0., type=float,
help="Integral gain, in DAC LSB/(ADC LSB*s)")
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)
r = await s.set(0, i)
loop.run_until_complete(main())

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