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29 lines
715 B
Rust
29 lines
715 B
Rust
// this program does not use the standard library to avoid heap allocations.
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// only the `core` library functions are available.
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#![no_std]
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// this program uses a custom entry point instead of `fn main()`
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#![no_main]
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use cortex_m::asm;
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use cortex_m_rt::entry;
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// this imports `beginner/apps/lib.rs` to retrieve our global logger + panicking-behavior
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use apps as _;
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// the custom entry point
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// vvvvv
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#[entry]
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fn main() -> ! {
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// ˆˆˆ
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// ! is the 'never' type: this function never returns
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// initializes the peripherals
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dk::init().unwrap();
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defmt::println!("Hello, world!"); // :wave:
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loop {
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// breakpoint: halts the program's execution
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asm::bkpt();
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}
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}
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