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67 lines
1.6 KiB
Rust
67 lines
1.6 KiB
Rust
#![no_main]
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#![no_std]
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#[allow(unused)]
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use panic_halt;
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use stm32f0xx_hal as hal;
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use crate::hal::prelude::*;
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use crate::hal::serial::Serial;
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use crate::hal::spi::Spi;
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use crate::hal::spi::{Mode, Phase, Polarity};
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use crate::hal::stm32;
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use nb::block;
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use cortex_m_rt::entry;
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/// A basic serial to spi example
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///
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/// If you connect MOSI & MISO pins together, you'll see all characters
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/// that you typed in your serial terminal echoed back
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///
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/// If you connect MISO to GND, you'll see nothing coming back
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#[entry]
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fn main() -> ! {
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const MODE: Mode = Mode {
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polarity: Polarity::IdleHigh,
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phase: Phase::CaptureOnSecondTransition,
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};
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if let Some(p) = stm32::Peripherals::take() {
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let rcc = p.RCC.constrain();
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let clocks = rcc.cfgr.freeze();
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let gpioa = p.GPIOA.split();
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// Configure pins for SPI
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let sck = gpioa.pa5.into_alternate_af0();
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let miso = gpioa.pa6.into_alternate_af0();
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let mosi = gpioa.pa7.into_alternate_af0();
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// Configure SPI with 1MHz rate
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let mut spi = Spi::spi1(p.SPI1, (sck, miso, mosi), MODE, 1.mhz(), clocks);
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let tx = gpioa.pa9.into_alternate_af1();
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let rx = gpioa.pa10.into_alternate_af1();
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let serial = Serial::usart1(p.USART1, (tx, rx), 115_200.bps(), clocks);
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let (mut tx, mut rx) = serial.split();
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loop {
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let serial_received = block!(rx.read()).unwrap();
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block!(spi.send(serial_received)).ok();
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let spi_received = block!(spi.read()).unwrap();
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block!(tx.write(spi_received)).ok();
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}
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}
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loop {
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continue;
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}
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}
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