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+resolver = "2" + +[dependencies] +defmt = "0.3" +defmt-rtt = "0.4" +panic-probe = { version = "0.3", features = ["print-defmt"] } + +embedded-hal = "1.0.0" +embedded-hal-async = "1.0.0" +embedded-io = "0.6.1" +embedded-io-async = "0.6.1" +embedded-storage = "0.3.1" + +cortex-m-rt = "0.7.3" + +embassy-executor = { version = "0.6.0", features = [ + "task-arena-size-8192", + "arch-cortex-m", + "executor-thread", + "defmt", + "integrated-timers", + "executor-interrupt", +] } +embassy-sync = { version = "0.6.0" } +embassy-time = { version = "0.3.0", features = [ + "defmt", + "defmt-timestamp-uptime", +] } + +embassy-net = { version = "0.4.0", features = [ + "dhcpv4", + "tcp", + "dns", + "defmt", + "proto-ipv4", + "medium-ip", +] } +cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] } +embassy-stm32 = { version = "0.1.0", features = [ + "defmt", + "stm32l431cc", + "unstable-pac", + "memory-x", + "time-driver-any", +] } +embassy-net-ppp = { version = "0.1.0", features = ["defmt"] } +embassy-futures = "0.1.1" +heapless = { version = "0.8.0", features = ["defmt-03"] } +static_cell = "2.1.0" +rand = { version = "0.8.5", default-features = false } +rust-mqtt = { version = "0.3.0", default-features = false, features = [ + "no_std", +] } +#minimq = "0.9.0" +#embedded-nal = "0.8.0" + + +[patch.crates-io] +embassy-time = { git = "https://github.com/embassy-rs/embassy", rev = "45cbcb513dc0bbf3e12c102df0db8c15643cc78b" } +embassy-time-driver = { git = "https://github.com/embassy-rs/embassy", rev = "45cbcb513dc0bbf3e12c102df0db8c15643cc78b" } +embassy-time-queue-driver = { git = "https://github.com/embassy-rs/embassy", rev = "45cbcb513dc0bbf3e12c102df0db8c15643cc78b" } +embassy-executor = { git = "https://github.com/embassy-rs/embassy", rev = "45cbcb513dc0bbf3e12c102df0db8c15643cc78b" } +embassy-stm32 = { git = "https://github.com/embassy-rs/embassy", rev = "45cbcb513dc0bbf3e12c102df0db8c15643cc78b" } +embassy-net = { git = "https://github.com/embassy-rs/embassy", rev = "45cbcb513dc0bbf3e12c102df0db8c15643cc78b" } +embassy-net-ppp = { git = "https://github.com/embassy-rs/embassy", rev = "45cbcb513dc0bbf3e12c102df0db8c15643cc78b" } +embassy-sync = { git = "https://github.com/embassy-rs/embassy", rev = "45cbcb513dc0bbf3e12c102df0db8c15643cc78b" } +embassy-futures = { git = "https://github.com/embassy-rs/embassy", rev = "45cbcb513dc0bbf3e12c102df0db8c15643cc78b" } + +[profile.release] +lto = true +opt-level = "s" +incremental = false +codegen-units = 1 +# note: debug = true is okay - debuginfo isn't flashed to the device! +debug = true diff --git a/README.md b/README.md new file mode 100644 index 0000000..fcef290 --- /dev/null +++ b/README.md @@ -0,0 +1,44 @@ + +# Emerson GO Tracker 1.7 (TXC-TH04) # + +## Parts ## + +| Part Number | Type | Interface | +|-------------|------|-----------| +| STM32L431CCU | MCU | | +| HDC2010 | Humidity and Temperature Sensor | I2C | +| TMP112 | Temperature Sensor | I2C | +| ????? | Light Sensor | I2C | +| Quectel BG95-M5 | GSM + GNSS | UART | +| MX25L3233F | Flash | SPI | + + +| I2C Address | Device | Function | +|-------------|--------|----------| +| 0x40 | HDC2010 | Humidity and Temperature Sensor | +| 0x44 | ????? | Light Sensor? | +| 0x48 | TMP112 | Temperature Sensor | + + +## Light Sensor ## +``` + --------------- +GND - | 1 6 | - INT (PB9) +VCC - | 2 5 | - SDA +GND - | 3 4 | - SCL + --------------- +``` + +## STM32L431CCU Pinout ## + +| STM Pin | Function | Remark | +|---------|---------------|--------| +| PA1 | GSM NetKey | - | +| PA2 | UART2_TX GSM | - | +| PA3 | UART2_RX GSM | - | +| PB2 | GSM PWR Enable| - | +| PB5 | TMP112 enable | - | +| PB6 | I2C1_SCL | - | +| PB7 | I2C1_SDA | - | +| PB9 | Light INT | not verified | +| PB12 | SPI Flash CS | - | diff --git a/build.rs b/build.rs new file mode 100644 index 0000000..30691aa --- /dev/null +++ b/build.rs @@ -0,0 +1,35 @@ +//! This build script copies the `memory.x` file from the crate root into +//! a directory where the linker can always find it at build time. +//! For many projects this is optional, as the linker always searches the +//! project root directory -- wherever `Cargo.toml` is. However, if you +//! are using a workspace or have a more complicated build setup, this +//! build script becomes required. Additionally, by requesting that +//! Cargo re-run the build script whenever `memory.x` is changed, +//! updating `memory.x` ensures a rebuild of the application with the +//! new memory settings. + +use std::env; +use std::fs::File; +use std::io::Write; +use std::path::PathBuf; + +fn main() { + // Put `memory.x` in our output directory and ensure it's + // on the linker search path. + 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()); + + // By default, Cargo will re-run a build script whenever + // any file in the project changes. By specifying `memory.x` + // here, we ensure the build script is only re-run when + // `memory.x` is changed. + println!("cargo:rerun-if-changed=memory.x"); + + println!("cargo:rustc-link-arg-bins=--nmagic"); + println!("cargo:rustc-link-arg-bins=-Tlink.x"); + println!("cargo:rustc-link-arg-bins=-Tdefmt.x"); +} diff --git a/memory.x b/memory.x new file mode 100644 index 0000000..e395100 --- /dev/null +++ b/memory.x @@ -0,0 +1,14 @@ +MEMORY +{ + /* NOTE K = KiBi = 1024 bytes */ + FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 256K + RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 64K +} + + + + +/* This is where the call stack will be allocated. */ +/* The stack is of the full descending type. */ +/* NOTE Do NOT modify `_stack_start` unless you know what you are doing */ +_stack_start = ORIGIN(RAM) + LENGTH(RAM); diff --git a/rust-toolchain.toml b/rust-toolchain.toml new file mode 100644 index 0000000..f139e35 --- /dev/null +++ b/rust-toolchain.toml @@ -0,0 +1,10 @@ +# Before upgrading check that everything is available on all tier1 targets here: +# https://rust-lang.github.io/rustup-components-history +[toolchain] +channel = "stable" +components = [ "rustfmt" ] +targets = [ + "thumbv6m-none-eabi", + "thumbv7em-none-eabihf", + "riscv32imac-unknown-none-elf", +] diff --git a/src/gnss.rs b/src/gnss.rs new file mode 100644 index 0000000..4e7b02b --- /dev/null +++ b/src/gnss.rs @@ -0,0 +1,23 @@ +use defmt::info; +use embassy_stm32::{mode::Async, usart::Uart}; +use embassy_time::{Duration, Timer}; +use heapless::String; + +#[embassy_executor::task] +pub async fn gnss_task(mut gnss_uart: Uart<'static, Async>) { + let mut buf = [0; 90]; + loop { + let rx = gnss_uart.read_until_idle(&mut buf).await; + match rx { + Ok(rx) => { + let buf = core::str::from_utf8(&buf[..rx]).unwrap(); + info!("RX: {}", buf); + } + Err(_) => { + info!("Error reading from GNSS"); + } + } + // Perform some asynchronous work here + Timer::after(Duration::from_secs(1)).await; + } +} diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..e3eea55 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,154 @@ +#![no_std] +#![no_main] + +use defmt::*; +use embassy_executor::Spawner; +use embassy_net::StackResources; +use embassy_net_ppp; + +use embassy_stm32::i2c::{self, I2c}; +use embassy_stm32::rng::{self, Rng}; +use embassy_stm32::time::Hertz; +use embassy_stm32::usart::Config; +use embassy_stm32::{bind_interrupts, peripherals, usart}; +use embassy_stm32::{ + gpio::{Level, Output, Speed}, + usart::BufferedUart, +}; +use embassy_time::{Duration, Timer}; + +use net::net_init; +use rand::RngCore; + +use static_cell::StaticCell; +use {defmt_rtt as _, panic_probe as _}; + +mod gnss; +mod mqtt; +mod net; +mod sensors; + +bind_interrupts!(struct Irqs { + USART2 => usart::BufferedInterruptHandler; + USART3 => usart::InterruptHandler; + RNG => rng::InterruptHandler; + I2C1_EV => i2c::EventInterruptHandler; + I2C1_ER => i2c::ErrorInterruptHandler; + +}); + +#[embassy_executor::main] +async fn main(spawner: Spawner) { + let mut stm_config = embassy_stm32::Config::default(); + { + use embassy_stm32::rcc::*; + stm_config.rcc.sys = Sysclk::PLL1_R; + stm_config.rcc.hsi = false; + stm_config.rcc.hse = Some(Hse { + freq: embassy_stm32::time::Hertz(12_000_000), + mode: HseMode::Oscillator, + }); + stm_config.rcc.pll = Some(Pll { + source: PllSource::HSE, // 12 MHz + prediv: PllPreDiv::DIV1, + + mul: PllMul::MUL8, // 12 * 8 = 96 MHz + divp: None, + divq: None, + divr: Some(PllRDiv::DIV2), // 96 / 2 = 48 MHz + }); + stm_config.rcc.ls = LsConfig::default(); + } + + let p = embassy_stm32::init(stm_config); + let mut config = Config::default(); + config.baudrate = 115_200; + config.stop_bits = embassy_stm32::usart::StopBits::STOP1; + + defmt::info!("Moin"); + let mut rng = Rng::new(p.RNG, Irqs); + let mut net_key = Output::new(p.PA1, Level::Low, Speed::Low); + let mut pwr_en = Output::new(p.PB2, Level::Low, Speed::Low); + let mut pwr_tmp = Output::new(p.PB5, Level::Low, Speed::Low); + + // Power on modem + pwr_en.set_high(); + pwr_tmp.set_high(); + + static RX_BUF: StaticCell<[u8; 512]> = StaticCell::new(); + static TX_BUF: StaticCell<[u8; 512]> = StaticCell::new(); + + let mut usart_modem = BufferedUart::new( + p.USART2, + Irqs, + p.PA3, + p.PA2, + RX_BUF.init([0; 512]), + TX_BUF.init([0; 512]), + config, + ) + .unwrap(); + + // TODO untested + let gnss_uart = usart::Uart::new( + p.USART3, + p.PB11, + p.PB10, + Irqs, + p.DMA1_CH2, + p.DMA1_CH3, + Config::default(), + ) + .unwrap(); + + let i2c = I2c::new( + p.I2C1, + p.PB6, + p.PB7, + Irqs, + p.DMA1_CH6, + p.DMA1_CH7, + Hertz(100_000), + Default::default(), + ); + + net_init(&mut net_key, &mut usart_modem).await; + + // spawner.spawn(gnss::gnss_task(gnss_uart)).unwrap(); + + static STATE: StaticCell> = StaticCell::new(); + let state = STATE.init(embassy_net_ppp::State::<8, 8>::new()); + let (device, runner) = embassy_net_ppp::new(state); + // Generate random seed + let seed = rng.next_u64(); + + // Init network stack + static RESOURCES: StaticCell> = StaticCell::new(); + let (stack, runner_net) = embassy_net::new( + device, + embassy_net::Config::default(), + RESOURCES.init(StackResources::new()), + seed, + ); + + // Launch network task + spawner.spawn(net::net_task(runner_net)).unwrap(); + spawner + .spawn(net::ppp_task(stack, runner, usart_modem)) + .unwrap(); + + loop { + Timer::after(Duration::from_secs(1)).await; + if stack.is_link_up() { + info!("Ready"); + break; + } + } + + spawner.spawn(sensors::sensors_task(i2c)).unwrap(); + spawner.spawn(mqtt::mqtt_task(stack)).unwrap(); + + loop { + Timer::after(Duration::from_secs(1)).await; + } +} diff --git a/src/mqtt.rs b/src/mqtt.rs new file mode 100644 index 0000000..1988cb9 --- /dev/null +++ b/src/mqtt.rs @@ -0,0 +1,61 @@ +use defmt::{info, warn}; +use embassy_net::Stack; + +use embassy_time::{Duration, Timer}; +use rust_mqtt::{ + client::{client::MqttClient, client_config::ClientConfig}, + utils::rng_generator::CountingRng, +}; + +#[embassy_executor::task] +pub async fn mqtt_task(stack: Stack<'static>) { + info!("Connecting..."); + let mut rx_buffer = [0; 128]; + let mut tx_buffer = [0; 128]; + loop { + let mut socket = embassy_net::tcp::TcpSocket::new(stack, &mut rx_buffer, &mut tx_buffer); + socket.set_timeout(Some(Duration::from_secs(10))); + + let host_addrs = stack + .dns_query("test.mosquitto.org", embassy_net::dns::DnsQueryType::A) + .await + .unwrap(); + let host_addr = host_addrs.iter().next().unwrap(); + + if let Err(e) = socket.connect((*host_addr, 1883)).await { + warn!("connect error: {:?}", e); + continue; + } + info!("Connected to {:?}", socket.remote_endpoint()); + + let mut config = ClientConfig::new( + rust_mqtt::client::client_config::MqttVersion::MQTTv5, + CountingRng(20000), + ); + config.add_max_subscribe_qos(rust_mqtt::packet::v5::publish_packet::QualityOfService::QoS1); + config.add_client_id("client"); + // config.add_username(USERNAME); + // config.add_password(PASSWORD); + config.max_packet_size = 100; + let mut recv_buffer = [0; 80]; + let mut write_buffer = [0; 80]; + + let mut client = + MqttClient::<_, 5, _>::new(socket, &mut write_buffer, 80, &mut recv_buffer, 80, config); + + client.connect_to_broker().await.unwrap(); + + loop { + client + .send_message( + "/malled", + b"hello2", + rust_mqtt::packet::v5::publish_packet::QualityOfService::QoS0, + true, + ) + .await + .unwrap(); + Timer::after_millis(2000).await; + } + } +} diff --git a/src/net.rs b/src/net.rs new file mode 100644 index 0000000..7bfe2ab --- /dev/null +++ b/src/net.rs @@ -0,0 +1,89 @@ +use defmt::{info, warn}; +use embassy_net::{ConfigV4, Ipv4Address, Ipv4Cidr, Stack}; +use embassy_stm32::{gpio::Output, usart::BufferedUart}; +use embassy_time::Timer; +use embedded_io::Write; +use embedded_io_async::Read; +use heapless::{String, Vec}; + +pub async fn net_init(net_key: &mut Output<'static>, usart_modem: &mut BufferedUart<'static>) { + // Enable the modem + Timer::after_millis(750).await; + net_key.set_high(); + Timer::after_millis(750).await; + net_key.set_low(); + + let mut rx_buf = String::<128>::new(); + loop { + let mut buf = [0u8; 8]; + let result = usart_modem.read(&mut buf).await; + match result { + Ok(size) => { + for i in 0..size { + rx_buf.push(buf[i] as char).unwrap(); + } + if !rx_buf.contains("\r") { + continue; + } + info!("RX: {}", rx_buf); + if rx_buf.contains("CTZV") { + // usart_modem.write_all(b"AT+QGPS=1\r").unwrap(); + usart_modem + .write_all(b"AT+CGDCONT=1,\"ip\",\"pinternet.interkom.de\"\r") + .unwrap(); + usart_modem.flush().unwrap(); + Timer::after_millis(500).await; + usart_modem.write_all(b"ATD*99#\r").unwrap(); + usart_modem.flush().unwrap(); + Timer::after_millis(500).await; + break; + } + rx_buf.clear(); + } + Err(_err) => { + //Ignore eg. framing errors + defmt::error!("Modem RX Error"); + } + } + } +} + +#[embassy_executor::task] +pub async fn net_task( + mut runner: embassy_net::Runner<'static, embassy_net_ppp::Device<'static>>, +) -> ! { + info!("Starting Ethernet"); + runner.run().await +} + +#[embassy_executor::task] +pub async fn ppp_task( + stack: Stack<'static>, + mut runner: embassy_net_ppp::Runner<'static>, + uart: BufferedUart<'static>, +) { + let cfg = embassy_net_ppp::Config { + username: "foo".as_bytes(), + password: "bar".as_bytes(), + }; + info!("Starting PPP"); + runner + .run(uart, cfg, |ipv4| { + let Some(addr) = ipv4.address else { + warn!("PPP did not provide an IP address."); + return; + }; + let mut dns_servers = Vec::new(); + for s in ipv4.dns_servers.iter().flatten() { + let _ = dns_servers.push(Ipv4Address::from_bytes(&s.0)); + } + let config = ConfigV4::Static(embassy_net::StaticConfigV4 { + address: Ipv4Cidr::new(Ipv4Address::from_bytes(&addr.0), 0), + gateway: None, + dns_servers, + }); + stack.set_config_v4(config); + }) + .await + .unwrap(); +} diff --git a/src/sensors.rs b/src/sensors.rs new file mode 100644 index 0000000..cdb2105 --- /dev/null +++ b/src/sensors.rs @@ -0,0 +1,105 @@ +use defmt::info; +use embassy_stm32::i2c::I2c; +use embassy_stm32::mode::Async; +use embassy_time::{Duration, Timer}; + +const ADDRESS_TMP112: u8 = 0x48; +const ADDRESS_HDC2010: u8 = 0x40; +const ADDRESS_LIGHT: u8 = 0x44; + +#[embassy_executor::task] +pub async fn sensors_task(mut i2c: I2c<'static, Async>) { + info!("Sensors task started"); + Timer::after(Duration::from_secs(1)).await; + loop { + info!("TMP112 {}", read_temp_tmp112(&mut i2c).await.unwrap()); + info!("HDC2010 {}", read_temp_hdc2010(&mut i2c).await.unwrap()); + info!("Light {}", read_light(&mut i2c).await.unwrap()); + Timer::after(Duration::from_secs(1)).await; + } +} + +async fn read_light(i2c: &mut I2c<'static, Async>) -> Result { + let mut data = [0u8; 2]; + // let _request = i2c.write(ADDRESS_LIGHT, &[0x7E]).await; + Timer::after(Duration::from_millis(50)).await; + for i in 1..255 { + let resp = i2c.write_read(ADDRESS_LIGHT, &[i], &mut data).await; + match resp { + Ok(_) => { + info!("Addr {:02X} Data: {:02X} {:02X}", i, data[0], data[1],); + return Ok(42); + } + Err(e) => match e { + embassy_stm32::i2c::Error::Nack => { + info!("NAK"); + Timer::after(Duration::from_millis(10)).await; + } + _ => { + info!("custom err"); + return Err(e); + } + }, + } + } + Err(embassy_stm32::i2c::Error::Timeout) +} + +async fn read_temp_hdc2010( + i2c: &mut I2c<'static, Async>, +) -> Result { + let mut data = [0u8; 4]; + // let _request = i2c.write(ADDRESS_HUM, &[0x00]).await; + Timer::after(Duration::from_millis(50)).await; + for _ in 1..10 { + let resp = i2c.write_read(ADDRESS_HDC2010, &[0xFC], &mut data).await; + match resp { + Ok(_) => { + info!( + "Data: {:02X} {:02X} {:02X} {:02X}", + data[0], data[1], data[2], data[3] + ); + return Ok(42); + } + Err(e) => match e { + embassy_stm32::i2c::Error::Nack => { + info!("NAK"); + Timer::after(Duration::from_millis(10)).await; + } + _ => { + info!("custom err"); + return Err(e); + } + }, + } + } + Err(embassy_stm32::i2c::Error::Timeout) +} + +async fn read_temp_tmp112(i2c: &mut I2c<'static, Async>) -> Result { + let mut data = [0u8; 2]; + // Timer::after(Duration::from_millis(50)).await; + for _ in 1..10 { + let resp = i2c.write_read(ADDRESS_TMP112, &[0], &mut data).await; + match resp { + Ok(_) => { + let temp = ((data[0] as u16) << 4) | (data[1] as u16) >> 4; + let temp = temp as i16; + let temp = temp as f32; + let temp = temp * 0.0625; + return Ok(temp); + } + Err(e) => match e { + embassy_stm32::i2c::Error::Nack => { + info!("NAK"); + Timer::after(Duration::from_millis(10)).await; + } + _ => { + info!("custom err"); + return Err(e); + } + }, + } + } + Err(embassy_stm32::i2c::Error::Timeout) +}