4d2ab5bc8f
* Create a virtual `CPU_CTRL` peripheral for ESP32/S3 * Create a virtual `RADIO_CLK` peripherals for all devices with radios * Use `PeripheralRef` for the `CpuControl` constructors * Update `CHANGELOG.md`
57 lines
1.5 KiB
Rust
57 lines
1.5 KiB
Rust
//! This shows how to spawn a task on the second core.
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//!
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//! The first core will print the value of a counter which is incremented by the
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//! second core.
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//% CHIPS: esp32 esp32s3
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#![no_std]
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#![no_main]
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use core::{cell::RefCell, ptr::addr_of_mut};
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use critical_section::Mutex;
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use esp_backtrace as _;
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use esp_hal::{
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clock::ClockControl,
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cpu_control::{CpuControl, Stack},
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delay::Delay,
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peripherals::Peripherals,
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prelude::*,
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};
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use esp_println::println;
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static mut APP_CORE_STACK: Stack<8192> = Stack::new();
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#[entry]
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fn main() -> ! {
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let peripherals = Peripherals::take();
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let system = peripherals.SYSTEM.split();
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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let delay = Delay::new(&clocks);
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let counter = Mutex::new(RefCell::new(0u32));
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let mut cpu_control = CpuControl::new(peripherals.CPU_CTRL);
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let _guard = cpu_control
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.start_app_core(unsafe { &mut *addr_of_mut!(APP_CORE_STACK) }, || {
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println!("Hello World - Core 1!");
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loop {
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delay.delay(500.millis());
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critical_section::with(|cs| {
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let mut val = counter.borrow_ref_mut(cs);
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*val = val.wrapping_add(1);
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});
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}
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})
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.unwrap();
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loop {
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delay.delay(1.secs());
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let count = critical_section::with(|cs| *counter.borrow_ref(cs));
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println!("Hello World - Core 0! Counter is {}", count);
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}
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}
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