45 lines
1.3 KiB
Rust
45 lines
1.3 KiB
Rust
#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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use defmt::*;
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use embassy_executor::Spawner;
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use embassy_stm32::gpio::{Input, Level, Output, Pull, 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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#[embassy_executor::main]
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async fn main(_spawner: Spawner) {
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let p = embassy_stm32::init(Default::default());
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info!("Hello World!");
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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(p.SPI3, p.PC10, p.PC12, p.PC11, p.DMA1_CH1, p.DMA1_CH2, spi_config);
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// These are the pins for the Inventek eS-Wifi SPI Wifi Adapter.
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let _boot = Output::new(p.PB12, Level::Low, Speed::VeryHigh);
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let _wake = Output::new(p.PB13, Level::Low, Speed::VeryHigh);
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let mut reset = Output::new(p.PE8, Level::Low, Speed::VeryHigh);
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let mut cs = Output::new(p.PE0, Level::High, Speed::VeryHigh);
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let ready = Input::new(p.PE1, Pull::Up);
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cortex_m::asm::delay(100_000);
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reset.set_high();
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cortex_m::asm::delay(100_000);
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while ready.is_low() {
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info!("waiting for ready");
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}
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let write = [0x0A; 10];
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let mut read = [0; 10];
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cs.set_low();
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spi.transfer(&mut read, &write).await.ok();
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cs.set_high();
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info!("xfer {=[u8]:x}", read);
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}
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