Merge #933

933: embassy-rp: Add async SPI r=Dirbaio a=kalkyl



Co-authored-by: Henrik Alsér <[email protected]>
Co-authored-by: Henrik Alsér <[email protected]>

3 files changed, 33 insertions, 3 deletions

diff --git a/examples/rp/src/bin/spi.rs b/examples/rp/src/bin/spi.rs
index 88003ee17..a830a17a2 100644
--- a/examples/rp/src/bin/spi.rs
+++ b/examples/rp/src/bin/spi.rs
@@ -24,7 +24,7 @@ async fn main(_spawner: Spawner) {
     // create SPI
     let mut config = spi::Config::default();
     config.frequency = 2_000_000;
-    let mut spi = Spi::new(p.SPI1, clk, mosi, miso, config);
+    let mut spi = Spi::new_blocking(p.SPI1, clk, mosi, miso, config);
 
     // Configure CS
     let mut cs = Output::new(touch_cs, Level::Low);
diff --git a/examples/rp/src/bin/spi_async.rs b/examples/rp/src/bin/spi_async.rs
new file mode 100644
index 000000000..671a9caaf
--- /dev/null
+++ b/examples/rp/src/bin/spi_async.rs
@@ -0,0 +1,29 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_rp::spi::{Config, Spi};
+use embassy_time::{Duration, Timer};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_rp::init(Default::default());
+    info!("Hello World!");
+
+    let miso = p.PIN_12;
+    let mosi = p.PIN_11;
+    let clk = p.PIN_10;
+
+    let mut spi = Spi::new(p.SPI1, clk, mosi, miso, p.DMA_CH0, p.DMA_CH1, Config::default());
+
+    loop {
+        let tx_buf = [1_u8, 2, 3, 4, 5, 6];
+        let mut rx_buf = [0_u8; 6];
+        spi.transfer(&mut rx_buf, &tx_buf).await.unwrap();
+        info!("{:?}", rx_buf);
+        Timer::after(Duration::from_secs(1)).await;
+    }
+}
diff --git a/examples/rp/src/bin/spi_display.rs b/examples/rp/src/bin/spi_display.rs
index f0e54d87f..23cd4355e 100644
--- a/examples/rp/src/bin/spi_display.rs
+++ b/examples/rp/src/bin/spi_display.rs
@@ -8,7 +8,7 @@ use defmt::*;
 use embassy_executor::Spawner;
 use embassy_rp::gpio::{Level, Output};
 use embassy_rp::spi;
-use embassy_rp::spi::Spi;
+use embassy_rp::spi::{Blocking, Spi};
 use embassy_time::Delay;
 use embedded_graphics::image::{Image, ImageRawLE};
 use embedded_graphics::mono_font::ascii::FONT_10X20;
@@ -48,7 +48,8 @@ async fn main(_spawner: Spawner) {
     config.phase = spi::Phase::CaptureOnSecondTransition;
     config.polarity = spi::Polarity::IdleHigh;
 
-    let spi_bus = RefCell::new(Spi::new(p.SPI1, clk, mosi, miso, config));
+    let spi: Spi<'_, _, Blocking> = Spi::new_blocking(p.SPI1, clk, mosi, miso, config);
+    let spi_bus = RefCell::new(spi);
 
     let display_spi = SpiDeviceWithCs::new(&spi_bus, Output::new(display_cs, Level::High));
     let touch_spi = SpiDeviceWithCs::new(&spi_bus, Output::new(touch_cs, Level::High));