31 lines
756 B
Rust
31 lines
756 B
Rust
#![no_std]
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#![no_main]
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use defmt::*;
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use embassy_stm32::gpio::{Level, Output, Speed};
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use embassy_stm32::spi::{Config, Spi};
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use embassy_stm32::time::Hertz;
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use {defmt_rtt as _, panic_probe as _};
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#[cortex_m_rt::entry]
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fn main() -> ! {
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info!("Hello World!");
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let p = embassy_stm32::init(Default::default());
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let mut spi_config = Config::default();
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spi_config.frequency = Hertz(1_000_000);
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let mut spi = Spi::new_blocking(p.SPI3, p.PC10, p.PC12, p.PC11, spi_config);
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let mut cs = Output::new(p.PE0, Level::High, Speed::VeryHigh);
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loop {
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let mut buf = [0x0Au8; 4];
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cs.set_low();
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unwrap!(spi.blocking_transfer_in_place(&mut buf));
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cs.set_high();
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info!("xfer {=[u8]:x}", buf);
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}
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}
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