Daniel Egger
4 years ago
commit
3db793e9d6
26 changed files with 2686 additions and 0 deletions
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[target.thumbv6m-none-eabi] |
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runner = 'arm-none-eabi-gdb' |
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rustflags = [ |
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"-C", "link-arg=-Tlink.x", |
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] |
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[build] |
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target = "thumbv6m-none-eabi" |
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/target/ |
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**/*.orig |
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**/*.rs.bk |
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Cargo.lock |
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*.txt |
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[package] |
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authors = ["Daniel Egger <daniel@eggers-club.de>"] |
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categories = [ |
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"embedded", |
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"hardware-support", |
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"no-std", |
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] |
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description = "Peripheral access API for STM32F0 series microcontrollers" |
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documentation = "https://docs.rs/stm32f0xx-hal" |
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keywords = [ |
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"arm", |
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"cortex-m", |
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"stm32f0xx", |
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"hal", |
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] |
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license = "0BSD" |
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name = "stm32f0xx-hal" |
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readme = "README.md" |
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repository = "https://github.com/stm32-rs/stm32f0xx-hal" |
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version = "0.7.0" |
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[dependencies] |
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bare-metal = { version = "0.2.4", features = ["const-fn"] } |
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cortex-m = "0.5.8" |
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cortex-m-rt = "0.6.5" |
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nb = "0.1.1" |
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void = { version = "1.0.2", default-features = false } |
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stm32f0 = "0.4.0" |
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[dependencies.cast] |
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default-features = false |
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version = "0.2.2" |
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[dependencies.embedded-hal] |
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features = ["unproven"] |
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version = "0.2.2" |
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[dev-dependencies] |
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ina260 = "0.2.3" |
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numtoa = "0.2.3" |
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panic-halt = "0.2.0" |
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[features] |
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rt = ["stm32f0/rt"] |
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stm32f042 = ["stm32f0/stm32f0x2"] |
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[profile.dev] |
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debug = true |
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[profile.release] |
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debug = true |
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lto = true |
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opt-level = "s" |
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stm32f0xx-hal |
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============= |
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_stm32f0xx-hal_ contains a hardware abstraction on top of the peripheral access |
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API for the STMicro STM32F0xx family of microcontrollers. It replaces the |
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[stm32f042-hal][] by a more ubiqitous version suitable for additional families. |
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Currently supported configuration are: |
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* stm32f042 |
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The idea behind this crate is to gloss over the slight differences in the |
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various peripherals available on those MCUs so a HAL can be written for all |
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chips in that same family without having to cut and paste crates for every |
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single model. |
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Collaboration on this crate is highly welcome as are pull requests! |
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This crate relies on Adam Greigs fantastic [stm32f0][] crate to provide |
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appropriate register definitions and implements a partial set of the |
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[embedded-hal][] traits. |
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Some of the implementation was shamelessly adapted from the [stm32f103xx-hal][] |
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crate by Jorge Aparicio. |
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[stm32f0]: https://crates.io/crates/stm32f0 |
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[stm32f042-hal]: https://github.com/therealprof/stm32f042-hal |
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[stm32f103xx-hal]: https://github.com/japaric/stm32f103xx-hal |
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[embedded-hal]: https://github.com/japaric/embedded-hal.git |
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License |
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------- |
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[0-clause BSD license](LICENSE-0BSD.txt). |
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#![no_main] |
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#![no_std] |
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extern crate cortex_m_rt; |
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extern crate panic_halt; |
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extern crate stm32f0xx_hal as hal; |
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use hal::prelude::*; |
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use hal::stm32; |
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use cortex_m_rt::entry; |
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#[entry] |
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fn main() -> ! { |
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if let Some(p) = stm32::Peripherals::take() { |
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let gpioa = p.GPIOA.split(); |
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/* (Re-)configure PA1 as output */ |
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let mut led = gpioa.pa1.into_push_pull_output(); |
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loop { |
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/* Turn PA1 on a million times in a row */ |
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for _ in 0..1_000_000 { |
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led.set_high(); |
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} |
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/* Then turn PA1 off a million times in a row */ |
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for _ in 0..1_000_000 { |
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led.set_low(); |
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} |
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} |
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} |
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loop { |
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continue; |
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} |
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} |
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@ -0,0 +1,46 @@
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#![no_main] |
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#![no_std] |
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extern crate cortex_m; |
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extern crate cortex_m_rt; |
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extern crate panic_halt; |
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extern crate stm32f0xx_hal as hal; |
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use hal::delay::Delay; |
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use hal::prelude::*; |
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use hal::stm32; |
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use cortex_m::peripheral::Peripherals; |
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use cortex_m_rt::entry; |
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#[entry] |
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fn main() -> ! { |
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if let (Some(p), Some(cp)) = (stm32::Peripherals::take(), Peripherals::take()) { |
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let gpioa = p.GPIOA.split(); |
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/* (Re-)configure PA1 as output */ |
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let mut led = gpioa.pa1.into_push_pull_output(); |
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/* Constrain clocking registers */ |
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let mut rcc = p.RCC.constrain(); |
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/* Configure clock to 8 MHz (i.e. the default) and freeze it */ |
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let clocks = rcc.cfgr.sysclk(8.mhz()).freeze(); |
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/* Get delay provider */ |
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let mut delay = Delay::new(cp.SYST, clocks); |
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loop { |
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led.set_high(); |
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delay.delay_ms(1_000_u16); |
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led.set_low(); |
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delay.delay_ms(1_000_u16); |
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} |
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} |
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loop { |
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continue; |
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} |
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} |
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#![no_main] |
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#![no_std] |
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extern crate cortex_m; |
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extern crate cortex_m_rt; |
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extern crate panic_halt; |
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extern crate stm32f0xx_hal as hal; |
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use hal::gpio::*; |
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use hal::prelude::*; |
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use hal::stm32; |
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use cortex_m::interrupt::Mutex; |
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use cortex_m::peripheral::syst::SystClkSource::Core; |
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use cortex_m::peripheral::Peripherals; |
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use cortex_m_rt::{entry, exception}; |
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use core::cell::RefCell; |
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use core::ops::DerefMut; |
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static GPIO: Mutex<RefCell<Option<gpioa::PA1<Output<PushPull>>>>> = Mutex::new(RefCell::new(None)); |
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#[entry] |
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fn main() -> ! { |
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if let (Some(p), Some(cp)) = (stm32::Peripherals::take(), Peripherals::take()) { |
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let gpioa = p.GPIOA.split(); |
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let mut rcc = p.RCC.constrain(); |
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let _ = rcc.cfgr.sysclk(48.mhz()).freeze(); |
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let mut syst = cp.SYST; |
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/* (Re-)configure PA1 as output */ |
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let mut led = gpioa.pa1.into_push_pull_output(); |
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cortex_m::interrupt::free(move |cs| { |
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*GPIO.borrow(cs).borrow_mut() = Some(led); |
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}); |
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/* Initialise SysTick counter with a defined value */ |
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unsafe { syst.cvr.write(1) }; |
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/* Set source for SysTick counter, here full operating frequency (== 8MHz) */ |
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syst.set_clock_source(Core); |
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/* Set reload value, i.e. timer delay 48 MHz/4 Mcounts == 12Hz or 83ms */ |
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syst.set_reload(4_000_000 - 1); |
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/* Start counter */ |
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syst.enable_counter(); |
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/* Start interrupt generation */ |
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syst.enable_interrupt(); |
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} |
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loop { |
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continue; |
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} |
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} |
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/* Define an exception, i.e. function to call when exception occurs. Here if our SysTick timer
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* trips the flash function will be called and the specified stated passed in via argument */ |
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//, flash, state: u8 = 1);
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#[exception] |
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fn SysTick() -> ! { |
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static mut state: u8 = 1; |
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/* Enter critical section */ |
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cortex_m::interrupt::free(|cs| { |
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if let Some(ref mut led) = *GPIO.borrow(cs).borrow_mut().deref_mut() { |
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/* Check state variable, keep LED off most of the time and turn it on every 10th tick */ |
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if *state < 10 { |
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/* If set turn off the LED */ |
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led.set_low(); |
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/* And now increment state variable */ |
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*state += 1; |
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} else { |
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/* If not set, turn on the LED */ |
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led.set_high(); |
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/* And set new state variable back to 0 */ |
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*state = 0; |
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} |
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} |
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}); |
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} |
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@ -0,0 +1,291 @@
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#![no_main] |
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#![no_std] |
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extern crate cortex_m; |
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extern crate cortex_m_rt; |
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extern crate embedded_hal; |
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extern crate panic_halt; |
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extern crate stm32f0xx_hal as hal; |
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extern crate numtoa; |
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use hal::i2c::*; |
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use hal::prelude::*; |
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use hal::stm32; |
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use embedded_hal::blocking::i2c::Write; |
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use numtoa::NumToA; |
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use cortex_m_rt::entry; |
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const SSD1306_BYTE_CMD: u8 = 0x00; |
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const SSD1306_BYTE_DATA: u8 = 0x40; |
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const SSD1306_BYTE_CMD_SINGLE: u8 = 0x80; |
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const SSD1306_DISPLAY_RAM: u8 = 0xA4; |
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const SSD1306_DISPLAY_NORMAL: u8 = 0xA6; |
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const SSD1306_DISPLAY_OFF: u8 = 0xAE; |
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const SSD1306_DISPLAY_ON: u8 = 0xAF; |
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const SSD1306_MEMORY_ADDR_MODE: u8 = 0x20; |
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const SSD1306_COLUMN_RANGE: u8 = 0x21; |
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const SSD1306_PAGE_RANGE: u8 = 0x22; |
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const SSD1306_DISPLAY_START_LINE: u8 = 0x40; |
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const SSD1306_SCAN_MODE_NORMAL: u8 = 0xC0; |
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const SSD1306_DISPLAY_OFFSET: u8 = 0xD3; |
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const SSD1306_PIN_MAP: u8 = 0xDA; |
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const SSD1306_DISPLAY_CLK_DIV: u8 = 0xD5; |
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const SSD1306_CHARGE_PUMP: u8 = 0x8D; |
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#[entry] |
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fn main() -> ! { |
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if let Some(p) = stm32::Peripherals::take() { |
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let gpiof = p.GPIOF.split(); |
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let mut rcc = p.RCC.constrain(); |
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let _ = rcc.cfgr.freeze(); |
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let scl = gpiof |
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.pf1 |
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.into_alternate_af1() |
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.internal_pull_up(true) |
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.set_open_drain(); |
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let sda = gpiof |
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.pf0 |
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.into_alternate_af1() |
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.internal_pull_up(true) |
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.set_open_drain(); |
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/* Setup I2C1 */ |
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let mut i2c = I2c::i2c1(p.I2C1, (scl, sda), 10.khz()); |
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/* Initialise SSD1306 display */ |
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let _ = ssd1306_init(&mut i2c); |
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/* Print a welcome message on the display */ |
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let _ = ssd1306_pos(&mut i2c, 0, 0); |
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/* Endless loop */ |
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loop { |
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let _ = ssd1306_pos(&mut i2c, 0, 0); |
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let mut data = [0; 2]; |
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let _ = i2c.write_read(0x40, &[0x00], &mut data); |
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let config = (u16::from(data[0]) << 8) | u16::from(data[1]); |
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let mut buffer = [0u8; 10]; |
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let _ = ssd1306_print_bytes(&mut i2c, config.numtoa(10, &mut buffer)); |
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let _ = ssd1306_pos(&mut i2c, 0, 1); |
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let mut data = [0; 2]; |
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let _ = i2c.write_read(0x40, &[0x02], &mut data); |
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let mut voltage = ((u32::from(data[0]) << 8) | u32::from(data[1])) * 1250; |
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let _ = ssd1306_print_bytes(&mut i2c, voltage.numtoa(10, &mut buffer)); |
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let _ = ssd1306_print_bytes(&mut i2c, b"uV "); |
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let _ = ssd1306_pos(&mut i2c, 0, 2); |
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let mut data = [0; 2]; |
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let _ = i2c.write_read(0x40, &[0x01], &mut data); |
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voltage = ((u32::from(data[0]) << 8) | u32::from(data[1])) * 1250; |
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let _ = ssd1306_print_bytes(&mut i2c, voltage.numtoa(10, &mut buffer)); |
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let _ = ssd1306_print_bytes(&mut i2c, b"uA "); |
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} |
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} |
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loop { |
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continue; |
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} |
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} |
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/// Print characters on the display with the embedded 7x7 font
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fn ssd1306_print_bytes<I2C, E>(i2c: &mut I2C, bytes: &[u8]) -> Result<(), E> |
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where |
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I2C: Write<Error = E>, |
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{ |
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/* A 7x7 font shamelessly borrowed from https://github.com/techninja/MarioChron/ */ |
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const FONT_7X7: [u8; 672] = [ |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // (space)
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0x00, 0x00, 0x5F, 0x00, 0x00, 0x00, 0x00, // !
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0x00, 0x07, 0x00, 0x07, 0x00, 0x00, 0x00, // "
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0x14, 0x7F, 0x14, 0x7F, 0x14, 0x00, 0x00, // #
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0x24, 0x2A, 0x7F, 0x2A, 0x12, 0x00, 0x00, // $
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0x23, 0x13, 0x08, 0x64, 0x62, 0x00, 0x00, // %
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0x36, 0x49, 0x55, 0x22, 0x50, 0x00, 0x00, // &
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0x00, 0x05, 0x03, 0x00, 0x00, 0x00, 0x00, // '
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0x00, 0x1C, 0x22, 0x41, 0x00, 0x00, 0x00, // (
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0x00, 0x41, 0x22, 0x1C, 0x00, 0x00, 0x00, // )
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0x08, 0x2A, 0x1C, 0x2A, 0x08, 0x00, 0x00, // *
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0x08, 0x08, 0x3E, 0x08, 0x08, 0x00, 0x00, // +
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0x00, 0x50, 0x30, 0x00, 0x00, 0x00, 0x00, // ,
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0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, // -
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0x00, 0x60, 0x60, 0x00, 0x00, 0x00, 0x00, // .
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0x20, 0x10, 0x08, 0x04, 0x02, 0x00, 0x00, // /
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0x1C, 0x3E, 0x61, 0x41, 0x43, 0x3E, 0x1C, // 0
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0x40, 0x42, 0x7F, 0x7F, 0x40, 0x40, 0x00, // 1
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0x62, 0x73, 0x79, 0x59, 0x5D, 0x4F, 0x46, // 2
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0x20, 0x61, 0x49, 0x4D, 0x4F, 0x7B, 0x31, // 3
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0x18, 0x1C, 0x16, 0x13, 0x7F, 0x7F, 0x10, // 4
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0x27, 0x67, 0x45, 0x45, 0x45, 0x7D, 0x38, // 5
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0x3C, 0x7E, 0x4B, 0x49, 0x49, 0x79, 0x30, // 6
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0x03, 0x03, 0x71, 0x79, 0x0D, 0x07, 0x03, // 7
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0x36, 0x7F, 0x49, 0x49, 0x49, 0x7F, 0x36, // 8
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0x06, 0x4F, 0x49, 0x49, 0x69, 0x3F, 0x1E, // 9
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0x00, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, // :
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0x00, 0x56, 0x36, 0x00, 0x00, 0x00, 0x00, // ;
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0x00, 0x08, 0x14, 0x22, 0x41, 0x00, 0x00, // <
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0x14, 0x14, 0x14, 0x14, 0x14, 0x00, 0x00, // =
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0x41, 0x22, 0x14, 0x08, 0x00, 0x00, 0x00, // >
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0x02, 0x01, 0x51, 0x09, 0x06, 0x00, 0x00, // ?
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0x32, 0x49, 0x79, 0x41, 0x3E, 0x00, 0x00, // @
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0x7E, 0x11, 0x11, 0x11, 0x7E, 0x00, 0x00, // A
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0x7F, 0x49, 0x49, 0x49, 0x36, 0x00, 0x00, // B
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0x3E, 0x41, 0x41, 0x41, 0x22, 0x00, 0x00, // C
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0x7F, 0x7F, 0x41, 0x41, 0x63, 0x3E, 0x1C, // D
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0x7F, 0x49, 0x49, 0x49, 0x41, 0x00, 0x00, // E
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0x7F, 0x09, 0x09, 0x01, 0x01, 0x00, 0x00, // F
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0x3E, 0x41, 0x41, 0x51, 0x32, 0x00, 0x00, // G
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0x7F, 0x08, 0x08, 0x08, 0x7F, 0x00, 0x00, // H
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0x00, 0x41, 0x7F, 0x41, 0x00, 0x00, 0x00, // I
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0x20, 0x40, 0x41, 0x3F, 0x01, 0x00, 0x00, // J
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0x7F, 0x08, 0x14, 0x22, 0x41, 0x00, 0x00, // K
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0x7F, 0x7F, 0x40, 0x40, 0x40, 0x40, 0x00, // L
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0x7F, 0x02, 0x04, 0x02, 0x7F, 0x00, 0x00, // M
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0x7F, 0x04, 0x08, 0x10, 0x7F, 0x00, 0x00, // N
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0x3E, 0x7F, 0x41, 0x41, 0x41, 0x7F, 0x3E, // O
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0x7F, 0x09, 0x09, 0x09, 0x06, 0x00, 0x00, // P
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0x3E, 0x41, 0x51, 0x21, 0x5E, 0x00, 0x00, // Q
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0x7F, 0x7F, 0x11, 0x31, 0x79, 0x6F, 0x4E, // R
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0x46, 0x49, 0x49, 0x49, 0x31, 0x00, 0x00, // S
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0x01, 0x01, 0x7F, 0x01, 0x01, 0x00, 0x00, // T
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0x3F, 0x40, 0x40, 0x40, 0x3F, 0x00, 0x00, // U
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0x1F, 0x20, 0x40, 0x20, 0x1F, 0x00, 0x00, // V
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||||
0x7F, 0x7F, 0x38, 0x1C, 0x38, 0x7F, 0x7F, // W
|
||||
0x63, 0x14, 0x08, 0x14, 0x63, 0x00, 0x00, // X
|
||||
0x03, 0x04, 0x78, 0x04, 0x03, 0x00, 0x00, // Y
|
||||
0x61, 0x51, 0x49, 0x45, 0x43, 0x00, 0x00, // Z
|
||||
0x00, 0x00, 0x7F, 0x41, 0x41, 0x00, 0x00, // [
|
||||
0x02, 0x04, 0x08, 0x10, 0x20, 0x00, 0x00, // "\"
|
||||
0x41, 0x41, 0x7F, 0x00, 0x00, 0x00, 0x00, // ]
|
||||
0x04, 0x02, 0x01, 0x02, 0x04, 0x00, 0x00, // ^
|
||||
0x40, 0x40, 0x40, 0x40, 0x40, 0x00, 0x00, // _
|
||||
0x00, 0x01, 0x02, 0x04, 0x00, 0x00, 0x00, // `
|
||||
0x20, 0x54, 0x54, 0x54, 0x78, 0x00, 0x00, // a
|
||||
0x7F, 0x48, 0x44, 0x44, 0x38, 0x00, 0x00, // b
|
||||
0x38, 0x44, 0x44, 0x44, 0x20, 0x00, 0x00, // c
|
||||
0x38, 0x44, 0x44, 0x48, 0x7F, 0x00, 0x00, // d
|
||||
0x38, 0x54, 0x54, 0x54, 0x18, 0x00, 0x00, // e
|
||||
0x08, 0x7E, 0x09, 0x01, 0x02, 0x00, 0x00, // f
|
||||
0x08, 0x14, 0x54, 0x54, 0x3C, 0x00, 0x00, // g
|
||||
0x7F, 0x08, 0x04, 0x04, 0x78, 0x00, 0x00, // h
|
||||
0x00, 0x44, 0x7D, 0x40, 0x00, 0x00, 0x00, // i
|
||||
0x20, 0x40, 0x44, 0x3D, 0x00, 0x00, 0x00, // j
|
||||
0x00, 0x7F, 0x10, 0x28, 0x44, 0x00, 0x00, // k
|
||||
0x00, 0x41, 0x7F, 0x40, 0x00, 0x00, 0x00, // l
|
||||
0x7C, 0x04, 0x18, 0x04, 0x78, 0x00, 0x00, // m
|
||||
0x7C, 0x08, 0x04, 0x04, 0x78, 0x00, 0x00, // n
|
||||
0x38, 0x44, 0x44, 0x44, 0x38, 0x00, 0x00, // o
|
||||
0x7C, 0x14, 0x14, 0x14, 0x08, 0x00, 0x00, // p
|
||||
0x08, 0x14, 0x14, 0x18, 0x7C, 0x00, 0x00, // q
|
||||
0x7C, 0x08, 0x04, 0x04, 0x08, 0x00, 0x00, // r
|
||||
0x48, 0x54, 0x54, 0x54, 0x20, 0x00, 0x00, // s
|
||||
0x04, 0x3F, 0x44, 0x40, 0x20, 0x00, 0x00, // t
|
||||
0x3C, 0x40, 0x40, 0x20, 0x7C, 0x00, 0x00, // u
|
||||
0x1C, 0x20, 0x40, 0x20, 0x1C, 0x00, 0x00, // v
|
||||
0x3C, 0x40, 0x30, 0x40, 0x3C, 0x00, 0x00, // w
|
||||
0x00, 0x44, 0x28, 0x10, 0x28, 0x44, 0x00, // x
|
||||
0x0C, 0x50, 0x50, 0x50, 0x3C, 0x00, 0x00, // y
|
||||
0x44, 0x64, 0x54, 0x4C, 0x44, 0x00, 0x00, // z
|
||||
0x00, 0x08, 0x36, 0x41, 0x00, 0x00, 0x00, // {
|
||||
0x00, 0x00, 0x7F, 0x00, 0x00, 0x00, 0x00, // |
|
||||
0x00, 0x41, 0x36, 0x08, 0x00, 0x00, 0x00, // }
|
||||
0x08, 0x08, 0x2A, 0x1C, 0x08, 0x00, 0x00, // ->
|
||||
0x08, 0x1C, 0x2A, 0x08, 0x08, 0x00, 0x00, // <-
|
||||
]; |
||||
|
||||
for c in bytes { |
||||
/* Create an array with our I2C instruction and a blank column at the end */ |
||||
let mut data: [u8; 9] = [SSD1306_BYTE_DATA, 0, 0, 0, 0, 0, 0, 0, 0]; |
||||
|
||||
/* Calculate our index into the character table above */ |
||||
let index = (*c as usize - 0x20) * 7; |
||||
|
||||
/* Populate the middle of the array with the data from the character array at the right
|
||||
* index */ |
||||
data[1..8].copy_from_slice(&FONT_7X7[index..index + 7]); |
||||
|
||||
/* Write it out to the I2C bus */ |
||||
i2c.write(0x3C, &data)? |
||||
} |
||||
|
||||
Ok(()) |
||||
} |
||||
|
||||
/// Initialise display with some useful values
|
||||
fn ssd1306_init<I2C, E>(i2c: &mut I2C) -> Result<(), E> |
||||
where |
||||
I2C: Write<Error = E>, |
||||
{ |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_OFF])?; |
||||
i2c.write( |
||||
0x3C, |
||||
&[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_CLK_DIV, 0x80], |
||||
)?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_SCAN_MODE_NORMAL])?; |
||||
i2c.write( |
||||
0x3C, |
||||
&[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_OFFSET, 0x00, 0x00], |
||||
)?; |
||||
i2c.write( |
||||
0x3C, |
||||
&[SSD1306_BYTE_CMD_SINGLE, SSD1306_MEMORY_ADDR_MODE, 0x00], |
||||
)?; |
||||
i2c.write( |
||||
0x3C, |
||||
&[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_START_LINE, 0x00], |
||||
)?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_CHARGE_PUMP, 0x14])?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_PIN_MAP, 0x12])?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_RAM])?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_NORMAL])?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_ON])?; |
||||
|
||||
let data = [ |
||||
SSD1306_BYTE_DATA, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
]; |
||||
|
||||
for _ in 0..128 { |
||||
i2c.write(0x3C, &data)?; |
||||
} |
||||
|
||||
Ok(()) |
||||
} |
||||
|
||||
/// Position cursor at specified x, y block coordinate (multiple of 8)
|
||||
fn ssd1306_pos<I2C, E>(i2c: &mut I2C, x: u8, y: u8) -> Result<(), E> |
||||
where |
||||
I2C: Write<Error = E>, |
||||
{ |
||||
let data = [ |
||||
SSD1306_BYTE_CMD, |
||||
SSD1306_COLUMN_RANGE, |
||||
x * 8, |
||||
0x7F, |
||||
SSD1306_PAGE_RANGE, |
||||
y, |
||||
0x07, |
||||
]; |
||||
i2c.write(0x3C, &data) |
||||
} |
||||
@ -0,0 +1,80 @@
|
||||
#![no_main] |
||||
#![no_std] |
||||
|
||||
extern crate cortex_m; |
||||
extern crate cortex_m_rt; |
||||
extern crate embedded_hal; |
||||
extern crate panic_halt; |
||||
|
||||
extern crate stm32f0xx_hal as hal; |
||||
|
||||
extern crate ina260; |
||||
extern crate numtoa; |
||||
|
||||
use hal::i2c::*; |
||||
use hal::prelude::*; |
||||
use hal::serial::*; |
||||
use hal::stm32; |
||||
|
||||
use numtoa::NumToA; |
||||
|
||||
use ina260::*; |
||||
|
||||
use core::fmt::Write; |
||||
use cortex_m_rt::entry; |
||||
|
||||
#[entry] |
||||
fn main() -> ! { |
||||
if let Some(p) = stm32::Peripherals::take() { |
||||
let gpiof = p.GPIOF.split(); |
||||
let gpioa = p.GPIOA.split(); |
||||
let mut clocks = p.RCC.constrain().cfgr.freeze(); |
||||
|
||||
/* Initialise serial pins */ |
||||
let tx = gpioa.pa9.into_alternate_af1(); |
||||
let rx = gpioa.pa10.into_alternate_af1(); |
||||
|
||||
/* Setup serial port */ |
||||
let serial = Serial::usart1(p.USART1, (tx, rx), 115_200.bps(), clocks); |
||||
let (mut tx, mut _rx) = serial.split(); |
||||
|
||||
/* Initialise I2C pins */ |
||||
let scl = gpiof |
||||
.pf1 |
||||
.into_alternate_af1() |
||||
.internal_pull_up(true) |
||||
.set_open_drain(); |
||||
let sda = gpiof |
||||
.pf0 |
||||
.into_alternate_af1() |
||||
.internal_pull_up(true) |
||||
.set_open_drain(); |
||||
|
||||
/* Setup I2C1 */ |
||||
let mut i2c = I2c::i2c1(p.I2C1, (scl, sda), 1.khz()); |
||||
let mut ina260 = INA260::new(i2c, 0x40).unwrap(); |
||||
|
||||
/* Endless loop */ |
||||
loop { |
||||
let mut buffer = [0u8; 10]; |
||||
|
||||
/* Read and print voltage */ |
||||
let voltage = ina260.voltage().unwrap(); |
||||
let _ = tx.write_str(unsafe { |
||||
core::str::from_utf8_unchecked(voltage.numtoa(10, &mut buffer)) |
||||
}); |
||||
let _ = tx.write_str("uV\n\r"); |
||||
|
||||
/* Read and print current */ |
||||
let current = ina260.current().unwrap(); |
||||
let _ = tx.write_str(unsafe { |
||||
core::str::from_utf8_unchecked(current.numtoa(10, &mut buffer)) |
||||
}); |
||||
let _ = tx.write_str("uA\n\r"); |
||||
} |
||||
} |
||||
|
||||
loop { |
||||
continue; |
||||
} |
||||
} |
||||
@ -0,0 +1,268 @@
|
||||
#![no_main] |
||||
#![no_std] |
||||
|
||||
extern crate cortex_m; |
||||
extern crate cortex_m_rt; |
||||
extern crate embedded_hal; |
||||
extern crate panic_halt; |
||||
|
||||
extern crate stm32f0xx_hal as hal; |
||||
|
||||
use hal::i2c::*; |
||||
use hal::prelude::*; |
||||
use hal::stm32; |
||||
|
||||
use cortex_m_rt::entry; |
||||
use embedded_hal::blocking::i2c::Write; |
||||
|
||||
const SSD1306_BYTE_CMD: u8 = 0x00; |
||||
const SSD1306_BYTE_DATA: u8 = 0x40; |
||||
const SSD1306_BYTE_CMD_SINGLE: u8 = 0x80; |
||||
|
||||
const SSD1306_DISPLAY_RAM: u8 = 0xA4; |
||||
const SSD1306_DISPLAY_NORMAL: u8 = 0xA6; |
||||
const SSD1306_DISPLAY_OFF: u8 = 0xAE; |
||||
const SSD1306_DISPLAY_ON: u8 = 0xAF; |
||||
|
||||
const SSD1306_MEMORY_ADDR_MODE: u8 = 0x20; |
||||
const SSD1306_COLUMN_RANGE: u8 = 0x21; |
||||
const SSD1306_PAGE_RANGE: u8 = 0x22; |
||||
|
||||
const SSD1306_DISPLAY_START_LINE: u8 = 0x40; |
||||
const SSD1306_SCAN_MODE_NORMAL: u8 = 0xC0; |
||||
const SSD1306_DISPLAY_OFFSET: u8 = 0xD3; |
||||
const SSD1306_PIN_MAP: u8 = 0xDA; |
||||
|
||||
const SSD1306_DISPLAY_CLK_DIV: u8 = 0xD5; |
||||
const SSD1306_CHARGE_PUMP: u8 = 0x8D; |
||||
|
||||
#[entry] |
||||
fn main() -> ! { |
||||
if let Some(p) = stm32::Peripherals::take() { |
||||
let gpiof = p.GPIOF.split(); |
||||
let mut rcc = p.RCC.constrain(); |
||||
let _ = rcc.cfgr.freeze(); |
||||
|
||||
let scl = gpiof |
||||
.pf1 |
||||
.into_alternate_af1() |
||||
.internal_pull_up(true) |
||||
.set_open_drain(); |
||||
let sda = gpiof |
||||
.pf0 |
||||
.into_alternate_af1() |
||||
.internal_pull_up(true) |
||||
.set_open_drain(); |
||||
|
||||
/* Setup I2C1 */ |
||||
let mut i2c = I2c::i2c1(p.I2C1, (scl, sda), 400.khz()); |
||||
|
||||
/* Initialise SSD1306 display */ |
||||
let _ = ssd1306_init(&mut i2c); |
||||
|
||||
/* Print a welcome message on the display */ |
||||
let _ = ssd1306_pos(&mut i2c, 0, 0); |
||||
|
||||
/* Endless loop */ |
||||
loop { |
||||
for c in 97..123 { |
||||
let _ = ssd1306_print_bytes(&mut i2c, &[c]); |
||||
} |
||||
for c in 65..91 { |
||||
let _ = ssd1306_print_bytes(&mut i2c, &[c]); |
||||
} |
||||
} |
||||
} |
||||
|
||||
loop { |
||||
continue; |
||||
} |
||||
} |
||||
|
||||
/// Print characters on the display with the embedded 7x7 font
|
||||
fn ssd1306_print_bytes<I2C, E>(i2c: &mut I2C, bytes: &[u8]) -> Result<(), E> |
||||
where |
||||
I2C: Write<Error = E>, |
||||
{ |
||||
/* A 7x7 font shamelessly borrowed from https://github.com/techninja/MarioChron/ */ |
||||
const FONT_7X7: [u8; 672] = [ |
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // (space)
|
||||
0x00, 0x00, 0x5F, 0x00, 0x00, 0x00, 0x00, // !
|
||||
0x00, 0x07, 0x00, 0x07, 0x00, 0x00, 0x00, // "
|
||||
0x14, 0x7F, 0x14, 0x7F, 0x14, 0x00, 0x00, // #
|
||||
0x24, 0x2A, 0x7F, 0x2A, 0x12, 0x00, 0x00, // $
|
||||
0x23, 0x13, 0x08, 0x64, 0x62, 0x00, 0x00, // %
|
||||
0x36, 0x49, 0x55, 0x22, 0x50, 0x00, 0x00, // &
|
||||
0x00, 0x05, 0x03, 0x00, 0x00, 0x00, 0x00, // '
|
||||
0x00, 0x1C, 0x22, 0x41, 0x00, 0x00, 0x00, // (
|
||||
0x00, 0x41, 0x22, 0x1C, 0x00, 0x00, 0x00, // )
|
||||
0x08, 0x2A, 0x1C, 0x2A, 0x08, 0x00, 0x00, // *
|
||||
0x08, 0x08, 0x3E, 0x08, 0x08, 0x00, 0x00, // +
|
||||
0x00, 0x50, 0x30, 0x00, 0x00, 0x00, 0x00, // ,
|
||||
0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, // -
|
||||
0x00, 0x60, 0x60, 0x00, 0x00, 0x00, 0x00, // .
|
||||
0x20, 0x10, 0x08, 0x04, 0x02, 0x00, 0x00, // /
|
||||
0x1C, 0x3E, 0x61, 0x41, 0x43, 0x3E, 0x1C, // 0
|
||||
0x40, 0x42, 0x7F, 0x7F, 0x40, 0x40, 0x00, // 1
|
||||
0x62, 0x73, 0x79, 0x59, 0x5D, 0x4F, 0x46, // 2
|
||||
0x20, 0x61, 0x49, 0x4D, 0x4F, 0x7B, 0x31, // 3
|
||||
0x18, 0x1C, 0x16, 0x13, 0x7F, 0x7F, 0x10, // 4
|
||||
0x27, 0x67, 0x45, 0x45, 0x45, 0x7D, 0x38, // 5
|
||||
0x3C, 0x7E, 0x4B, 0x49, 0x49, 0x79, 0x30, // 6
|
||||
0x03, 0x03, 0x71, 0x79, 0x0D, 0x07, 0x03, // 7
|
||||
0x36, 0x7F, 0x49, 0x49, 0x49, 0x7F, 0x36, // 8
|
||||
0x06, 0x4F, 0x49, 0x49, 0x69, 0x3F, 0x1E, // 9
|
||||
0x00, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, // :
|
||||
0x00, 0x56, 0x36, 0x00, 0x00, 0x00, 0x00, // ;
|
||||
0x00, 0x08, 0x14, 0x22, 0x41, 0x00, 0x00, // <
|
||||
0x14, 0x14, 0x14, 0x14, 0x14, 0x00, 0x00, // =
|
||||
0x41, 0x22, 0x14, 0x08, 0x00, 0x00, 0x00, // >
|
||||
0x02, 0x01, 0x51, 0x09, 0x06, 0x00, 0x00, // ?
|
||||
0x32, 0x49, 0x79, 0x41, 0x3E, 0x00, 0x00, // @
|
||||
0x7E, 0x11, 0x11, 0x11, 0x7E, 0x00, 0x00, // A
|
||||
0x7F, 0x49, 0x49, 0x49, 0x36, 0x00, 0x00, // B
|
||||
0x3E, 0x41, 0x41, 0x41, 0x22, 0x00, 0x00, // C
|
||||
0x7F, 0x7F, 0x41, 0x41, 0x63, 0x3E, 0x1C, // D
|
||||
0x7F, 0x49, 0x49, 0x49, 0x41, 0x00, 0x00, // E
|
||||
0x7F, 0x09, 0x09, 0x01, 0x01, 0x00, 0x00, // F
|
||||
0x3E, 0x41, 0x41, 0x51, 0x32, 0x00, 0x00, // G
|
||||
0x7F, 0x08, 0x08, 0x08, 0x7F, 0x00, 0x00, // H
|
||||
0x00, 0x41, 0x7F, 0x41, 0x00, 0x00, 0x00, // I
|
||||
0x20, 0x40, 0x41, 0x3F, 0x01, 0x00, 0x00, // J
|
||||
0x7F, 0x08, 0x14, 0x22, 0x41, 0x00, 0x00, // K
|
||||
0x7F, 0x7F, 0x40, 0x40, 0x40, 0x40, 0x00, // L
|
||||
0x7F, 0x02, 0x04, 0x02, 0x7F, 0x00, 0x00, // M
|
||||
0x7F, 0x04, 0x08, 0x10, 0x7F, 0x00, 0x00, // N
|
||||
0x3E, 0x7F, 0x41, 0x41, 0x41, 0x7F, 0x3E, // O
|
||||
0x7F, 0x09, 0x09, 0x09, 0x06, 0x00, 0x00, // P
|
||||
0x3E, 0x41, 0x51, 0x21, 0x5E, 0x00, 0x00, // Q
|
||||
0x7F, 0x7F, 0x11, 0x31, 0x79, 0x6F, 0x4E, // R
|
||||
0x46, 0x49, 0x49, 0x49, 0x31, 0x00, 0x00, // S
|
||||
0x01, 0x01, 0x7F, 0x01, 0x01, 0x00, 0x00, // T
|
||||
0x3F, 0x40, 0x40, 0x40, 0x3F, 0x00, 0x00, // U
|
||||
0x1F, 0x20, 0x40, 0x20, 0x1F, 0x00, 0x00, // V
|
||||
0x7F, 0x7F, 0x38, 0x1C, 0x38, 0x7F, 0x7F, // W
|
||||
0x63, 0x14, 0x08, 0x14, 0x63, 0x00, 0x00, // X
|
||||
0x03, 0x04, 0x78, 0x04, 0x03, 0x00, 0x00, // Y
|
||||
0x61, 0x51, 0x49, 0x45, 0x43, 0x00, 0x00, // Z
|
||||
0x00, 0x00, 0x7F, 0x41, 0x41, 0x00, 0x00, // [
|
||||
0x02, 0x04, 0x08, 0x10, 0x20, 0x00, 0x00, // "\"
|
||||
0x41, 0x41, 0x7F, 0x00, 0x00, 0x00, 0x00, // ]
|
||||
0x04, 0x02, 0x01, 0x02, 0x04, 0x00, 0x00, // ^
|
||||
0x40, 0x40, 0x40, 0x40, 0x40, 0x00, 0x00, // _
|
||||
0x00, 0x01, 0x02, 0x04, 0x00, 0x00, 0x00, // `
|
||||
0x20, 0x54, 0x54, 0x54, 0x78, 0x00, 0x00, // a
|
||||
0x7F, 0x48, 0x44, 0x44, 0x38, 0x00, 0x00, // b
|
||||
0x38, 0x44, 0x44, 0x44, 0x20, 0x00, 0x00, // c
|
||||
0x38, 0x44, 0x44, 0x48, 0x7F, 0x00, 0x00, // d
|
||||
0x38, 0x54, 0x54, 0x54, 0x18, 0x00, 0x00, // e
|
||||
0x08, 0x7E, 0x09, 0x01, 0x02, 0x00, 0x00, // f
|
||||
0x08, 0x14, 0x54, 0x54, 0x3C, 0x00, 0x00, // g
|
||||
0x7F, 0x08, 0x04, 0x04, 0x78, 0x00, 0x00, // h
|
||||
0x00, 0x44, 0x7D, 0x40, 0x00, 0x00, 0x00, // i
|
||||
0x20, 0x40, 0x44, 0x3D, 0x00, 0x00, 0x00, // j
|
||||
0x00, 0x7F, 0x10, 0x28, 0x44, 0x00, 0x00, // k
|
||||
0x00, 0x41, 0x7F, 0x40, 0x00, 0x00, 0x00, // l
|
||||
0x7C, 0x04, 0x18, 0x04, 0x78, 0x00, 0x00, // m
|
||||
0x7C, 0x08, 0x04, 0x04, 0x78, 0x00, 0x00, // n
|
||||
0x38, 0x44, 0x44, 0x44, 0x38, 0x00, 0x00, // o
|
||||
0x7C, 0x14, 0x14, 0x14, 0x08, 0x00, 0x00, // p
|
||||
0x08, 0x14, 0x14, 0x18, 0x7C, 0x00, 0x00, // q
|
||||
0x7C, 0x08, 0x04, 0x04, 0x08, 0x00, 0x00, // r
|
||||
0x48, 0x54, 0x54, 0x54, 0x20, 0x00, 0x00, // s
|
||||
0x04, 0x3F, 0x44, 0x40, 0x20, 0x00, 0x00, // t
|
||||
0x3C, 0x40, 0x40, 0x20, 0x7C, 0x00, 0x00, // u
|
||||
0x1C, 0x20, 0x40, 0x20, 0x1C, 0x00, 0x00, // v
|
||||
0x3C, 0x40, 0x30, 0x40, 0x3C, 0x00, 0x00, // w
|
||||
0x00, 0x44, 0x28, 0x10, 0x28, 0x44, 0x00, // x
|
||||
0x0C, 0x50, 0x50, 0x50, 0x3C, 0x00, 0x00, // y
|
||||
0x44, 0x64, 0x54, 0x4C, 0x44, 0x00, 0x00, // z
|
||||
0x00, 0x08, 0x36, 0x41, 0x00, 0x00, 0x00, // {
|
||||
0x00, 0x00, 0x7F, 0x00, 0x00, 0x00, 0x00, // |
|
||||
0x00, 0x41, 0x36, 0x08, 0x00, 0x00, 0x00, // }
|
||||
0x08, 0x08, 0x2A, 0x1C, 0x08, 0x00, 0x00, // ->
|
||||
0x08, 0x1C, 0x2A, 0x08, 0x08, 0x00, 0x00, // <-
|
||||
]; |
||||
|
||||
for c in bytes { |
||||
/* Create an array with our I2C instruction and a blank column at the end */ |
||||
let mut data: [u8; 9] = [SSD1306_BYTE_DATA, 0, 0, 0, 0, 0, 0, 0, 0]; |
||||
|
||||
/* Calculate our index into the character table above */ |
||||
let index = (*c as usize - 0x20) * 7; |
||||
|
||||
/* Populate the middle of the array with the data from the character array at the right
|
||||
* index */ |
||||
data[1..8].copy_from_slice(&FONT_7X7[index..index + 7]); |
||||
|
||||
/* Write it out to the I2C bus */ |
||||
i2c.write(0x3C, &data)? |
||||
} |
||||
|
||||
Ok(()) |
||||
} |
||||
|
||||
/// Initialise display with some useful values
|
||||
fn ssd1306_init<I2C, E>(i2c: &mut I2C) -> Result<(), E> |
||||
where |
||||
I2C: Write<Error = E>, |
||||
{ |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_OFF])?; |
||||
i2c.write( |
||||
0x3C, |
||||
&[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_CLK_DIV, 0x80], |
||||
)?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_SCAN_MODE_NORMAL])?; |
||||
i2c.write( |
||||
0x3C, |
||||
&[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_OFFSET, 0x00, 0x00], |
||||
)?; |
||||
i2c.write( |
||||
0x3C, |
||||
&[SSD1306_BYTE_CMD_SINGLE, SSD1306_MEMORY_ADDR_MODE, 0x00], |
||||
)?; |
||||
i2c.write( |
||||
0x3C, |
||||
&[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_START_LINE, 0x00], |
||||
)?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_CHARGE_PUMP, 0x14])?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_PIN_MAP, 0x12])?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_RAM])?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_NORMAL])?; |
||||
i2c.write(0x3C, &[SSD1306_BYTE_CMD_SINGLE, SSD1306_DISPLAY_ON])?; |
||||
|
||||
let data = [ |
||||
SSD1306_BYTE_DATA, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
0x00, |
||||
]; |
||||
|
||||
for _ in 0..128 { |
||||
i2c.write(0x3C, &data)?; |
||||
} |
||||
|
||||
Ok(()) |
||||
} |
||||
|
||||
/// Position cursor at specified x, y block coordinate (multiple of 8)
|
||||
fn ssd1306_pos<I2C, E>(i2c: &mut I2C, x: u8, y: u8) -> Result<(), E> |
||||
where |
||||
I2C: Write<Error = E>, |
||||
{ |
||||
let data = [ |
||||
SSD1306_BYTE_CMD, |
||||
SSD1306_COLUMN_RANGE, |
||||
x * 8, |
||||
0x7F, |
||||
SSD1306_PAGE_RANGE, |
||||
y, |
||||
0x07, |
||||
]; |
||||
i2c.write(0x3C, &data) |
||||
} |
||||
@ -0,0 +1,116 @@
|
||||
#![no_main] |
||||
#![no_std] |
||||
|
||||
extern crate cortex_m; |
||||
extern crate cortex_m_rt; |
||||
extern crate panic_halt; |
||||
|
||||
#[macro_use] |
||||
extern crate stm32f0xx_hal as hal; |
||||
|
||||
use hal::delay::Delay; |
||||
use hal::gpio::*; |
||||
use hal::prelude::*; |
||||
|
||||
use cortex_m::interrupt::Mutex; |
||||
use cortex_m::peripheral::Peripherals as c_m_Peripherals; |
||||
use cortex_m_rt::entry; |
||||
|
||||
pub use hal::stm32; |
||||
pub use hal::stm32::*; |
||||
|
||||
use core::cell::RefCell; |
||||
use core::ops::DerefMut; |
||||
|
||||
// Make our LED globally available
|
||||
static LED: Mutex<RefCell<Option<gpiob::PB3<Output<PushPull>>>>> = Mutex::new(RefCell::new(None)); |
||||
|
||||
// Make our delay provider globally available
|
||||
static DELAY: Mutex<RefCell<Option<Delay>>> = Mutex::new(RefCell::new(None)); |
||||
|
||||
// Make external interrupt registers globally available
|
||||
static INT: Mutex<RefCell<Option<EXTI>>> = Mutex::new(RefCell::new(None)); |
||||
|
||||
#[entry] |
||||
fn main() -> ! { |
||||
if let (Some(p), Some(cp)) = (Peripherals::take(), c_m_Peripherals::take()) { |
||||
let gpiob = p.GPIOB.split(); |
||||
let syscfg = p.SYSCFG_COMP; |
||||
let exti = p.EXTI; |
||||
|
||||
// Enable clock for SYSCFG
|
||||
let mut rcc = p.RCC; |
||||
rcc.apb2enr.modify(|_, w| w.syscfgen().set_bit()); |
||||
|
||||
// Configure PB1 as input (button)
|
||||
let _ = gpiob.pb1.into_pull_down_input(); |
||||
|
||||
// Configure PB3 as output (LED)
|
||||
let mut led = gpiob.pb3.into_push_pull_output(); |
||||
|
||||
// Turn off LED
|
||||
led.set_low(); |
||||
|
||||
// Configure clock to 8 MHz (i.e. the default) and freeze it
|
||||
let clocks = rcc.constrain().cfgr.sysclk(8.mhz()).freeze(); |
||||
|
||||
// Initialise delay provider
|
||||
let mut delay = Delay::new(cp.SYST, clocks); |
||||
|
||||
// Enable external interrupt for PB1
|
||||
syscfg |
||||
.syscfg_exticr1 |
||||
.modify(|_, w| unsafe { w.exti1().bits(1) }); |
||||
|
||||
// Set interrupt request mask for line 1
|
||||
exti.imr.modify(|_, w| w.mr1().set_bit()); |
||||
|
||||
// Set interrupt rising trigger for line 1
|
||||
exti.rtsr.modify(|_, w| w.tr1().set_bit()); |
||||
|
||||
// Move control over LED and DELAY and EXTI into global mutexes
|
||||
cortex_m::interrupt::free(move |cs| { |
||||
*LED.borrow(cs).borrow_mut() = Some(led); |
||||
*DELAY.borrow(cs).borrow_mut() = Some(delay); |
||||
*INT.borrow(cs).borrow_mut() = Some(exti); |
||||
}); |
||||
|
||||
// Enable EXTI IRQ, set prio 1 and clear any pending IRQs
|
||||
let mut nvic = cp.NVIC; |
||||
nvic.enable(Interrupt::EXTI0_1); |
||||
unsafe { nvic.set_priority(Interrupt::EXTI0_1, 1) }; |
||||
cortex_m::peripheral::NVIC::unpend(Interrupt::EXTI0_1); |
||||
} |
||||
|
||||
loop { |
||||
continue; |
||||
} |
||||
} |
||||
|
||||
/* Define an intterupt handler, i.e. function to call when exception occurs. Here if our external
|
||||
* interrupt trips the flash function which will be called */ |
||||
interrupt!(EXTI0_1, button_press); |
||||
|
||||
fn button_press() { |
||||
// Enter critical section
|
||||
cortex_m::interrupt::free(|cs| { |
||||
// Obtain all Mutex protected resources
|
||||
if let (&mut Some(ref mut led), &mut Some(ref mut delay), &mut Some(ref mut exti)) = ( |
||||
LED.borrow(cs).borrow_mut().deref_mut(), |
||||
DELAY.borrow(cs).borrow_mut().deref_mut(), |
||||
INT.borrow(cs).borrow_mut().deref_mut(), |
||||
) { |
||||
// Turn on LED
|
||||
led.set_high(); |
||||
|
||||
// Wait a second
|
||||
delay.delay_ms(1_000_u16); |
||||
|
||||
// Turn off LED
|
||||
led.set_low(); |
||||
|
||||
// Clear interrupt
|
||||
exti.pr.modify(|_, w| w.pif1().set_bit()); |
||||
} |
||||
}); |
||||
} |
||||
@ -0,0 +1,43 @@
|
||||
#![no_main] |
||||
#![no_std] |
||||
|
||||
extern crate cortex_m; |
||||
extern crate cortex_m_rt; |
||||
extern crate panic_halt; |
||||
|
||||
extern crate stm32f0xx_hal as hal; |
||||
|
||||
use hal::prelude::*; |
||||
use hal::stm32; |
||||
|
||||
#[macro_use(block)] |
||||
extern crate nb; |
||||
|
||||
use hal::serial::Serial; |
||||
|
||||
use cortex_m_rt::entry; |
||||
|
||||
#[entry] |
||||
fn main() -> ! { |
||||
if let Some(p) = stm32::Peripherals::take() { |
||||
let gpioa = p.GPIOA.split(); |
||||
let mut rcc = p.RCC.constrain(); |
||||
let clocks = rcc.cfgr.sysclk(48.mhz()).freeze(); |
||||
|
||||
let tx = gpioa.pa9.into_alternate_af1(); |
||||
let rx = gpioa.pa10.into_alternate_af1(); |
||||
|
||||
let serial = Serial::usart1(p.USART1, (tx, rx), 115_200.bps(), clocks); |
||||
|
||||
let (mut tx, mut rx) = serial.split(); |
||||
|
||||
loop { |
||||
let received = block!(rx.read()).unwrap(); |
||||
block!(tx.write(received)).ok(); |
||||
} |
||||
} |
||||
|
||||
loop { |
||||
continue; |
||||
} |
||||
} |
||||
@ -0,0 +1,66 @@
|
||||
#![no_main] |
||||
#![no_std] |
||||
|
||||
extern crate cortex_m; |
||||
extern crate cortex_m_rt; |
||||
extern crate panic_halt; |
||||
|
||||
extern crate stm32f0xx_hal as hal; |
||||
|
||||
use hal::prelude::*; |
||||
use hal::spi::Spi; |
||||
use hal::spi::{Mode, Phase, Polarity}; |
||||
use hal::stm32; |
||||
|
||||
use cortex_m_rt::entry; |
||||
|
||||
#[entry] |
||||
fn main() -> ! { |
||||
pub const MODE: Mode = Mode { |
||||
polarity: Polarity::IdleHigh, |
||||
phase: Phase::CaptureOnSecondTransition, |
||||
}; |
||||
|
||||
if let Some(p) = stm32::Peripherals::take() { |
||||
let mut rcc = p.RCC.constrain(); |
||||
let clocks = rcc.cfgr.freeze(); |
||||
let mut gpioa = p.GPIOA.split(); |
||||
|
||||
// Configure pins for SPI
|
||||
let sck = gpioa.pa5.into_alternate_af0(); |
||||
let miso = gpioa.pa6.into_alternate_af0(); |
||||
let mosi = gpioa.pa7.into_alternate_af0(); |
||||
|
||||
// Configure SPI with 100kHz rate
|
||||
let mut spi = Spi::spi1(p.SPI1, (sck, miso, mosi), MODE, 100_000.hz(), clocks); |
||||
|
||||
// Cycle through colors on 16 chained APA102C LEDs
|
||||
loop { |
||||
for r in 0..255 { |
||||
let _ = spi.write(&[0, 0, 0, 0]); |
||||
for _i in 0..16 { |
||||
let _ = spi.write(&[0b1110_0001, 0, 0, r]); |
||||
} |
||||
let _ = spi.write(&[0xFF, 0xFF, 0xFF, 0xFF]); |
||||
} |
||||
for b in 0..255 { |
||||
let _ = spi.write(&[0, 0, 0, 0]); |
||||
for _i in 0..16 { |
||||
let _ = spi.write(&[0b1110_0001, b, 0, 0]); |
||||
} |
||||
let _ = spi.write(&[0xFF, 0xFF, 0xFF, 0xFF]); |
||||
} |
||||
for g in 0..255 { |
||||
let _ = spi.write(&[0, 0, 0, 0]); |
||||
for _i in 0..16 { |
||||
let _ = spi.write(&[0b1110_0001, 0, g, 0]); |
||||
} |
||||
let _ = spi.write(&[0xFF, 0xFF, 0xFF, 0xFF]); |
||||
} |
||||
} |
||||
} |
||||
|
||||
loop { |
||||
continue; |
||||
} |
||||
} |
||||
@ -0,0 +1,11 @@
|
||||
MEMORY |
||||
{ |
||||
/* NOTE K = KiBi = 1024 bytes */ |
||||
FLASH : ORIGIN = 0x08000000, LENGTH = 32K |
||||
RAM : ORIGIN = 0x20000000, LENGTH = 6K |
||||
} |
||||
|
||||
/* 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); |
||||
@ -0,0 +1,5 @@
|
||||
source [find interface/cmsis-dap.cfg] |
||||
source [find target/stm32f0x.cfg] |
||||
|
||||
init |
||||
flash probe 0 |
||||
@ -0,0 +1,8 @@
|
||||
#!/bin/sh |
||||
if (( $# != 1 )); then |
||||
echo "Usage:" |
||||
echo "$0 <filename of firmware in ELF format>" |
||||
exit 1 |
||||
fi |
||||
|
||||
openocd -f openocd.cfg -c "program $1 verify reset exit" |
||||
@ -0,0 +1,74 @@
|
||||
//! Delays
|
||||
|
||||
use cast::u32; |
||||
use cortex_m::peripheral::syst::SystClkSource; |
||||
use cortex_m::peripheral::SYST; |
||||
|
||||
use hal::blocking::delay::{DelayMs, DelayUs}; |
||||
use rcc::Clocks; |
||||
|
||||
/// System timer (SysTick) as a delay provider
|
||||
pub struct Delay { |
||||
clocks: Clocks, |
||||
syst: SYST, |
||||
} |
||||
|
||||
impl Delay { |
||||
/// Configures the system timer (SysTick) as a delay provider
|
||||
pub fn new(mut syst: SYST, clocks: Clocks) -> Self { |
||||
syst.set_clock_source(SystClkSource::Core); |
||||
|
||||
Delay { syst, clocks } |
||||
} |
||||
|
||||
/// Releases the system timer (SysTick) resource
|
||||
pub fn free(self) -> SYST { |
||||
self.syst |
||||
} |
||||
} |
||||
|
||||
impl DelayMs<u32> for Delay { |
||||
fn delay_ms(&mut self, ms: u32) { |
||||
self.delay_us(ms * 1_000); |
||||
} |
||||
} |
||||
|
||||
impl DelayMs<u16> for Delay { |
||||
fn delay_ms(&mut self, ms: u16) { |
||||
self.delay_ms(u32(ms)); |
||||
} |
||||
} |
||||
|
||||
impl DelayMs<u8> for Delay { |
||||
fn delay_ms(&mut self, ms: u8) { |
||||
self.delay_ms(u32(ms)); |
||||
} |
||||
} |
||||
|
||||
impl DelayUs<u32> for Delay { |
||||
fn delay_us(&mut self, us: u32) { |
||||
let rvr = us * (self.clocks.sysclk().0 / 1_000_000); |
||||
|
||||
assert!(rvr < (1 << 24)); |
||||
|
||||
self.syst.set_reload(rvr); |
||||
self.syst.clear_current(); |
||||
self.syst.enable_counter(); |
||||
|
||||
while !self.syst.has_wrapped() {} |
||||
|
||||
self.syst.disable_counter(); |
||||
} |
||||
} |
||||
|
||||
impl DelayUs<u16> for Delay { |
||||
fn delay_us(&mut self, us: u16) { |
||||
self.delay_us(u32(us)) |
||||
} |
||||
} |
||||
|
||||
impl DelayUs<u8> for Delay { |
||||