95 lines
2.3 KiB
Rust
95 lines
2.3 KiB
Rust
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#![no_std]
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#![no_main]
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#![feature(trait_alias)]
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#![feature(min_type_alias_impl_trait)]
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#![feature(impl_trait_in_bindings)]
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#![feature(type_alias_impl_trait)]
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#[path = "../example_common.rs"]
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mod example_common;
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use embassy_stm32::gpio::{Level, Output, Input, Pull};
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use embedded_hal::digital::v2::{OutputPin, InputPin};
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use example_common::*;
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use cortex_m_rt::entry;
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use stm32f4::stm32f429 as pac;
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//use stm32l4::stm32l4x5 as pac;
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use embassy_stm32::spi::{Spi, MODE_0, ByteOrder, Config};
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use embassy_stm32::time::Hertz;
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use embedded_hal::blocking::spi::Transfer;
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#[entry]
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fn main() -> ! {
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info!("Hello World, dude!");
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let pp = pac::Peripherals::take().unwrap();
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pp.DBGMCU.cr.modify(|_, w| {
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w.dbg_sleep().set_bit();
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w.dbg_standby().set_bit();
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w.dbg_stop().set_bit()
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});
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pp.RCC.ahb1enr.modify(|_, w| w.dma1en().set_bit());
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pp.RCC.apb1enr.modify(|_, w| {
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w.spi3en().enabled();
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w
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});
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pp.RCC.ahb1enr.modify(|_, w| {
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w.gpioaen().enabled();
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w.gpioben().enabled();
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w.gpiocen().enabled();
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w.gpioden().enabled();
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w.gpioeen().enabled();
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w.gpiofen().enabled();
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w
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});
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let rc = pp.RCC.cfgr.read().sws().bits();
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info!("rcc -> {}", rc);
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let p = embassy_stm32::init(Default::default());
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let mut led = Output::new(p.PA5, Level::High);
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let mut spi = Spi::new(
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Hertz(16_000_000),
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p.SPI3,
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p.PC10,
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p.PC12,
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p.PC11,
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Hertz(1_000_000),
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Config::default(),
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);
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let mut cs = Output::new( p.PE0, Level::High);
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cs.set_low();
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let mut rdy = Input::new(p.PE1, Pull::Down);
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let mut wake = Output::new( p.PB13, Level::Low);
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let mut reset = Output::new( p.PE8, Level::Low);
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wake.set_high().unwrap();
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reset.set_high().unwrap();
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loop {
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info!("loop");
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while rdy.is_low().unwrap() {
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info!("await ready")
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}
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info!("ready");
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let mut buf = [0x0A;4];
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spi.transfer(&mut buf);
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info!("xfer {=[u8]:x}", buf);
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}
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loop {
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info!("high");
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led.set_high().unwrap();
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cortex_m::asm::delay(10_000_000);
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info!("low");
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led.set_low().unwrap();
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cortex_m::asm::delay(10_000_000);
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}
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}
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