4e9e1d1fea
* Begin working on `PeripheralClockControl` for the ESP32-H2 * Update `UART` driver to add H2 support * Update `TIMG` driver to add H2 support * Update the hello_world example to use `TIMG` and `UART`
56 lines
1.4 KiB
Rust
56 lines
1.4 KiB
Rust
//! This shows how to write text to uart0.
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//! You can see the output with `espflash` if you provide the `--monitor` option
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#![no_std]
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#![no_main]
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use core::fmt::Write;
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use esp32h2_hal::{
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clock::ClockControl,
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peripherals::Peripherals,
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prelude::*,
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timer::TimerGroup,
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// Rtc,
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Uart,
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};
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use esp_backtrace as _;
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use nb::block;
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#[entry]
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fn main() -> ! {
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let peripherals = Peripherals::take();
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let mut system = peripherals.PCR.split();
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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// Disable the watchdog timers. For the ESP32-H2, this includes the Super WDT,
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// and the TIMG WDTs.
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// let mut rtc = Rtc::new(peripherals.LP_CLKRST);
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let timer_group0 = TimerGroup::new(
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peripherals.TIMG0,
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&clocks,
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&mut system.peripheral_clock_control,
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);
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let mut timer0 = timer_group0.timer0;
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// let mut wdt0 = timer_group0.wdt;
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let timer_group1 = TimerGroup::new(
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peripherals.TIMG1,
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&clocks,
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&mut system.peripheral_clock_control,
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);
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// let mut wdt1 = timer_group1.wdt;
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// rtc.swd.disable();
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// rtc.rwdt.disable();
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// wdt0.disable();
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// wdt1.disable();
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let mut uart0 = Uart::new(peripherals.UART0, &mut system.peripheral_clock_control);
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timer0.start(1u64.secs());
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loop {
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writeln!(uart0, "Hello world!").unwrap();
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block!(timer0.wait()).unwrap();
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}
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}
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