32 lines
781 B
Rust
32 lines
781 B
Rust
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#![no_std]
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#![no_main]
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//! Serial port example.
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//!
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//! The output is viewable with simavr
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//!
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//! ```
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//! cargo build -Z build-std=core --target avr-atmega328p.json --examples --release
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//! simavr -m atmega328p target/avr-atmega328p/release/examples/uart.elf
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//! ```
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use ruduino::legacy::serial;
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#[no_mangle]
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fn main() {
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const CPU_FREQUENCY_HZ: u64 = 16_000_000;
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const BAUD: u64 = 9600;
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const UBRR: u16 = (CPU_FREQUENCY_HZ / 16 / BAUD - 1) as u16;
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serial::Serial::new(UBRR)
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.character_size(serial::CharacterSize::EightBits)
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.mode(serial::Mode::Asynchronous)
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.parity(serial::Parity::Disabled)
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.stop_bits(serial::StopBits::OneBit)
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.configure();
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for &b in b"Hello, from Rust!\n" {
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serial::transmit(b);
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}
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}
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