-
Notifications
You must be signed in to change notification settings - Fork 173
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #211 from TheZoq2/improved_gpio
* Add temporary pin modes * Add example for changing pin mode * Add stateful versions of the output pin temp conversions * Add dynamic gpio pin mode * Add documentation for GPIO pins * Fix gpio changelog appearing in the wrong place * Fix some doc issues
- Loading branch information
Showing
4 changed files
with
633 additions
and
128 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,49 @@ | ||
#![deny(unsafe_code)] | ||
#![no_std] | ||
#![no_main] | ||
|
||
use panic_halt as _; | ||
|
||
use nb::block; | ||
|
||
use cortex_m_rt::entry; | ||
use cortex_m_semihosting::hprintln; | ||
use embedded_hal::digital::v2::{InputPin, OutputPin}; | ||
use stm32f1xx_hal::{pac, prelude::*, timer::Timer}; | ||
|
||
#[entry] | ||
fn main() -> ! { | ||
// Get access to the core peripherals from the cortex-m crate | ||
let cp = cortex_m::Peripherals::take().unwrap(); | ||
// Get access to the device specific peripherals from the peripheral access crate | ||
let dp = pac::Peripherals::take().unwrap(); | ||
|
||
// Take ownership over the raw flash and rcc devices and convert them into the corresponding | ||
// HAL structs | ||
let mut flash = dp.FLASH.constrain(); | ||
let mut rcc = dp.RCC.constrain(); | ||
|
||
// Freeze the configuration of all the clocks in the system and store the frozen frequencies in | ||
// `clocks` | ||
let clocks = rcc.cfgr.freeze(&mut flash.acr); | ||
|
||
// Acquire the GPIOC peripheral | ||
let mut gpioc = dp.GPIOC.split(&mut rcc.apb2); | ||
|
||
let mut pin = gpioc.pc13.into_dynamic(&mut gpioc.crh); | ||
// Configure the syst timer to trigger an update every second | ||
let mut timer = Timer::syst(cp.SYST, &clocks).start_count_down(1.hz()); | ||
|
||
// Wait for the timer to trigger an update and change the state of the LED | ||
loop { | ||
pin.make_floating_input(&mut gpioc.crh); | ||
block!(timer.wait()).unwrap(); | ||
hprintln!("{}", pin.is_high().unwrap()).unwrap(); | ||
|
||
pin.make_push_pull_output(&mut gpioc.crh); | ||
pin.set_high().unwrap(); | ||
block!(timer.wait()).unwrap(); | ||
pin.set_low().unwrap(); | ||
block!(timer.wait()).unwrap(); | ||
} | ||
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,53 @@ | ||
#![deny(unsafe_code)] | ||
#![no_std] | ||
#![no_main] | ||
|
||
use panic_halt as _; | ||
|
||
use nb::block; | ||
|
||
use cortex_m_rt::entry; | ||
use cortex_m_semihosting::hprintln; | ||
use embedded_hal::digital::v2::{InputPin, OutputPin}; | ||
use stm32f1xx_hal::{gpio::State, pac, prelude::*, timer::Timer}; | ||
|
||
#[entry] | ||
fn main() -> ! { | ||
// Get access to the core peripherals from the cortex-m crate | ||
let cp = cortex_m::Peripherals::take().unwrap(); | ||
// Get access to the device specific peripherals from the peripheral access crate | ||
let dp = pac::Peripherals::take().unwrap(); | ||
|
||
// Take ownership over the raw flash and rcc devices and convert them into the corresponding | ||
// HAL structs | ||
let mut flash = dp.FLASH.constrain(); | ||
let mut rcc = dp.RCC.constrain(); | ||
|
||
// Freeze the configuration of all the clocks in the system and store the frozen frequencies in | ||
// `clocks` | ||
let clocks = rcc.cfgr.freeze(&mut flash.acr); | ||
|
||
// Acquire the GPIOC peripheral | ||
let mut gpioc = dp.GPIOC.split(&mut rcc.apb2); | ||
|
||
let mut pin = gpioc.pc13.into_floating_input(&mut gpioc.crh); | ||
// Configure the syst timer to trigger an update every second | ||
let mut timer = Timer::syst(cp.SYST, &clocks).start_count_down(1.hz()); | ||
|
||
// Wait for the timer to trigger an update and change the state of the LED | ||
loop { | ||
block!(timer.wait()).unwrap(); | ||
hprintln!("{}", pin.is_high().unwrap()).unwrap(); | ||
pin.as_push_pull_output(&mut gpioc.crh, |out| { | ||
out.set_high().unwrap(); | ||
block!(timer.wait()).unwrap(); | ||
out.set_low().unwrap(); | ||
block!(timer.wait()).unwrap(); | ||
}); | ||
pin.as_push_pull_output_with_state(&mut gpioc.crh, State::High, |out| { | ||
block!(timer.wait()).unwrap(); | ||
out.set_low().unwrap(); | ||
block!(timer.wait()).unwrap(); | ||
}); | ||
} | ||
} |
Oops, something went wrong.