sam354xplaintedpro: Add uart tx example

Signed-off-by: Thomas Klaehn <thomas.klaehn@perinet.io>
This commit is contained in:
Thomas Klaehn 2022-01-16 09:11:17 +01:00
parent 6d1e159f4c
commit 4b383c1893
4 changed files with 30 additions and 376 deletions

1
.gitignore vendored
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@ -1 +1,2 @@
/target
Cargo.lock

373
Cargo.lock generated
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@ -1,373 +0,0 @@
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@ -6,7 +6,7 @@ edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
atsame54_xpro = { git = "https://github.com/atsamd-rs/atsamd"}
atsame54_xpro = { version = "0.4.0" }
# atsamd-hal = { version = "0.14.0", features = ["same54p"] }
# cortex-m = { version = "0.7.4" }
# cortex-m-rt = { version = "0.6.15" }

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@ -17,6 +17,14 @@ use hal::prelude::*;
use hal::watchdog::{ Watchdog, WatchdogTimeout };
use bsp::hal::sercom::{
v2::{
uart, uart::BaudMode, uart::Oversampling
}
};
use embedded_hal::serial::Write;
#[entry]
fn main() -> ! {
let mut peripherals = Peripherals::take().unwrap();
@ -34,6 +42,18 @@ fn main() -> ! {
let pins = Pins::new(peripherals.PORT);
let mut led = pins.pc18.into_mode::<ReadableOutput>();
let gclk0 = clocks.gclk0();
let clock = &clocks.sercom2_core(&gclk0).unwrap();
let pads = uart::Pads::default().rx(pins.pb24).tx(pins.pb25);
let mut uart_cfg = uart::Config::new(&peripherals.MCLK, peripherals.SERCOM2, pads, clock.freq());
uart_cfg.set_baud(115200.hz(), BaudMode::Arithmetic(Oversampling::Bits8));
let uart = uart_cfg.enable();
let (_, mut tx) = uart.split();
let s_off: &str = "off\r\n";
let s_on: &str = "on\r\n";
let mut wdt = Watchdog::new(peripherals.WDT);
wdt.start(WatchdogTimeout::Cycles256 as u8);
@ -41,8 +61,14 @@ fn main() -> ! {
delay.delay_ms(200u8);
wdt.feed();
led.set_high().unwrap();
for b in s_off.bytes() {
nb::block!(tx.write(b)).unwrap();
}
delay.delay_ms(200u8);
wdt.feed();
led.set_low().unwrap();
for b in s_on.bytes() {
nb::block!(tx.write(b)).unwrap();
}
}
}