From 133dd1883b63e3eda9ef5dd1a8df7c00ea369b8f Mon Sep 17 00:00:00 2001 From: Ronald Weber Date: Mon, 23 Dec 2024 19:00:47 +0100 Subject: [PATCH] Add blinky example for STM32F1 bluepill board Code taken from stm32f3_blinky example with LED port adapted to bluepill board. Port initialization and README from v1 rtic-examples with slight edits. --- .../.cargo/config.toml | 40 ++ examples/stm32f1_bluepill_blinky/Cargo.lock | 483 ++++++++++++++++++ examples/stm32f1_bluepill_blinky/Cargo.toml | 55 ++ examples/stm32f1_bluepill_blinky/Embed.toml | 8 + examples/stm32f1_bluepill_blinky/README.md | 45 ++ examples/stm32f1_bluepill_blinky/memory.x | 5 + examples/stm32f1_bluepill_blinky/src/main.rs | 73 +++ 7 files changed, 709 insertions(+) create mode 100644 examples/stm32f1_bluepill_blinky/.cargo/config.toml create mode 100644 examples/stm32f1_bluepill_blinky/Cargo.lock create mode 100644 examples/stm32f1_bluepill_blinky/Cargo.toml create mode 100644 examples/stm32f1_bluepill_blinky/Embed.toml create mode 100644 examples/stm32f1_bluepill_blinky/README.md create mode 100644 examples/stm32f1_bluepill_blinky/memory.x create mode 100644 examples/stm32f1_bluepill_blinky/src/main.rs diff --git a/examples/stm32f1_bluepill_blinky/.cargo/config.toml b/examples/stm32f1_bluepill_blinky/.cargo/config.toml new file mode 100644 index 0000000000..bca7d2ddf3 --- /dev/null +++ b/examples/stm32f1_bluepill_blinky/.cargo/config.toml @@ -0,0 +1,40 @@ +[target.thumbv7m-none-eabi] +# uncomment this to make `cargo run` execute programs on QEMU +# runner = "qemu-system-arm -cpu cortex-m3 -machine lm3s6965evb -nographic -semihosting-config enable=on,target=native -kernel" + +[target.'cfg(all(target_arch = "arm", target_os = "none"))'] +# uncomment ONE of these three option to make `cargo run` start a GDB session +# which option to pick depends on your system +# runner = "arm-none-eabi-gdb -q -x openocd.gdb" +# runner = "gdb-multiarch -q -x openocd.gdb" +# runner = "gdb -q -x openocd.gdb" + +rustflags = [ + # This is needed if your flash or ram addresses are not aligned to 0x10000 in memory.x + # See https://github.com/rust-embedded/cortex-m-quickstart/pull/95 + "-C", "link-arg=--nmagic", + + # LLD (shipped with the Rust toolchain) is used as the default linker + "-C", "link-arg=-Tlink.x", + + # if you run into problems with LLD switch to the GNU linker by commenting out + # this line + # "-C", "linker=arm-none-eabi-ld", + + # if you need to link to pre-compiled C libraries provided by a C toolchain + # use GCC as the linker by commenting out both lines above and then + # uncommenting the three lines below + # "-C", "linker=arm-none-eabi-gcc", + # "-C", "link-arg=-Wl,-Tlink.x", + # "-C", "link-arg=-nostartfiles", +] + +[build] +# Pick ONE of these compilation targets +# target = "thumbv6m-none-eabi" # Cortex-M0 and Cortex-M0+ +target = "thumbv7m-none-eabi" # Cortex-M3 +# target = "thumbv7em-none-eabi" # Cortex-M4 and Cortex-M7 (no FPU) +# target = "thumbv7em-none-eabihf" # Cortex-M4F and Cortex-M7F (with FPU) +# target = "thumbv8m.base-none-eabi" # Cortex-M23 +# target = "thumbv8m.main-none-eabi" # Cortex-M33 (no FPU) +# target = "thumbv8m.main-none-eabihf" # Cortex-M33 (with FPU) diff --git 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+[dependencies.stm32f1xx-hal] +version = "0.10.0" +features = ["rt", "stm32f103", "medium"] + +# this lets you use `cargo fix`! +[[bin]] +name = "bluepill_blinky" +test = false +bench = false + +[profile.dev] +opt-level = 1 +codegen-units = 16 +debug = true +lto = false + +[profile.release] +opt-level = "s" # optimize for size +codegen-units = 1 # better optimizations +debug = true # symbols are nice and they don't increase the size on Flash +lto = true # better optimizations diff --git a/examples/stm32f1_bluepill_blinky/Embed.toml b/examples/stm32f1_bluepill_blinky/Embed.toml new file mode 100644 index 0000000000..89c6ebe741 --- /dev/null +++ b/examples/stm32f1_bluepill_blinky/Embed.toml @@ -0,0 +1,8 @@ +[default.general] +chip = "stm32f103c8" + +[default.rtt] +enabled = true + +[default.gdb] +enabled = false diff --git a/examples/stm32f1_bluepill_blinky/README.md b/examples/stm32f1_bluepill_blinky/README.md new file mode 100644 index 0000000000..793de92b16 --- /dev/null +++ b/examples/stm32f1_bluepill_blinky/README.md @@ -0,0 +1,45 @@ +# STM32F103 Bluepill RTIC Blink example + +Working example of simple LED blinking application for popular Bluepill boards based on the STM32F103C8 chip. Example uses schedule API and peripherials access. You will need `stlink v2` tool or other programmer to flash the board. + +## How-to + +### Terminal workflow + +Rust embedded relies heavily on `terminal workflow`, you will enter commands in the terminal. This can be strange at first, but this enables usage of great things like continious integration tools. + +For Mac OS X consider using `iTerm2` instead of Terminal application. +For Windows consider using `powershell` (win + r -> powershell -> enter -> cd examples\stm3f1_bluepill_blinky) + +### Build + +Run `cargo build` to compile the code. If you run it for the first time, it will take some time to download and compile dependencies. After that, you will see comething like: + +```shell +$ cargo build +Finished dev [optimized + debuginfo] target(s) in 0.10s +``` + +If you see warnings, feel free to ask for help in chat or issues of this repo. + +### Connect the board + +You need to connect you bluepill board to ST-Link and connect pins: + +| BOARD | | ST-LINK | +|-------|----|---------| +| GND | -> | GND | +| 3.3V | -> | 3.3V | +| SWCLK | -> | SWCLK | +| SWDIO | -> | SWDIO | + +Plug in ST-Link to USB port and wait it to initialize. + +### Flashing and running + +Install `cargo embed` from probe-rs tools by following the instructions at https://probe.rs/docs/getting-started/installation/. +Flashing with a standard STLink v2 is easy with `cargo-embed`: + +```shell +$ cargo embed --release +``` diff --git a/examples/stm32f1_bluepill_blinky/memory.x b/examples/stm32f1_bluepill_blinky/memory.x new file mode 100644 index 0000000000..d1d7841151 --- /dev/null +++ b/examples/stm32f1_bluepill_blinky/memory.x @@ -0,0 +1,5 @@ +MEMORY +{ + FLASH : ORIGIN = 0x08000000, LENGTH = 64K + RAM : ORIGIN = 0x20000000, LENGTH = 20K +} diff --git a/examples/stm32f1_bluepill_blinky/src/main.rs b/examples/stm32f1_bluepill_blinky/src/main.rs new file mode 100644 index 0000000000..08cf1ccd9b --- /dev/null +++ b/examples/stm32f1_bluepill_blinky/src/main.rs @@ -0,0 +1,73 @@ +#![deny(unsafe_code)] +#![deny(warnings)] +#![no_main] +#![no_std] + +use panic_rtt_target as _; +use rtic::app; +use rtic_monotonics::systick::prelude::*; +use rtt_target::{rprintln, rtt_init_print}; +use stm32f1xx_hal::gpio::{Output, PinState, PushPull, PC13}; +use stm32f1xx_hal::prelude::*; + +systick_monotonic!(Mono, 1000); + +#[app(device = stm32f1xx_hal::pac, peripherals = true, dispatchers = [SPI1])] +mod app { + use super::*; + + #[shared] + struct Shared {} + + #[local] + struct Local { + led: PC13>, + state: bool, + } + + #[init] + fn init(cx: init::Context) -> (Shared, Local) { + // Setup clocks + let mut flash = cx.device.FLASH.constrain(); + let rcc = cx.device.RCC.constrain(); + + // Initialize the systick interrupt & obtain the token to prove that we did + Mono::start(cx.core.SYST, 36_000_000); + + rtt_init_print!(); + rprintln!("init"); + + let _clocks = rcc + .cfgr + .use_hse(8.MHz()) + .sysclk(36.MHz()) + .pclk1(36.MHz()) + .freeze(&mut flash.acr); + + // Setup LED + let mut gpioc = cx.device.GPIOC.split(); + let led = gpioc + .pc13 + .into_push_pull_output_with_state(&mut gpioc.crh, PinState::Low); + + // Schedule the blinking task + blink::spawn().ok(); + + (Shared {}, Local { led, state: false }) + } + + #[task(local = [led, state])] + async fn blink(cx: blink::Context) { + loop { + rprintln!("blink"); + if *cx.local.state { + cx.local.led.set_high(); + *cx.local.state = false; + } else { + cx.local.led.set_low(); + *cx.local.state = true; + } + Mono::delay(1000.millis()).await; + } + } +}