#![no_std]
#![no_main]
use panic_semihosting as _;
use stm32f3xx_hal as hal;
use cortex_m::asm;
use cortex_m_rt::entry;
use hal::pac;
use hal::prelude::*;
use hal::spi::Spi;
#[entry]
fn main() -> ! {
let dp = pac::Peripherals::take().unwrap();
let mut flash = dp.FLASH.constrain();
let mut rcc = dp.RCC.constrain();
let mut gpioc = dp.GPIOC.split(&mut rcc.ahb);
let clocks = rcc
.cfgr
.use_hse(8.MHz())
.sysclk(48.MHz())
.pclk1(24.MHz())
.freeze(&mut flash.acr);
let sck = gpioc
.pc10
.into_af_push_pull(&mut gpioc.moder, &mut gpioc.otyper, &mut gpioc.afrh);
let miso = gpioc
.pc11
.into_af_push_pull(&mut gpioc.moder, &mut gpioc.otyper, &mut gpioc.afrh);
let mosi = gpioc
.pc12
.into_af_push_pull(&mut gpioc.moder, &mut gpioc.otyper, &mut gpioc.afrh);
let mut spi = Spi::new(dp.SPI3, (sck, miso, mosi), 3.MHz(), clocks, &mut rcc.apb1);
let msg_send: [u8; 8] = [0xD, 0xE, 0xA, 0xD, 0xB, 0xE, 0xE, 0xF];
let mut msg_sending = msg_send;
let msg_received = spi.transfer(&mut msg_sending).unwrap();
assert_eq!(msg_send, msg_received);
loop {
asm::wfi();
}
}