Add support for F3 flash

2 files changed, 44 insertions, 1 deletions

diff --git a/examples/stm32f3/src/bin/blinky.rs b/examples/stm32f3/src/bin/blinky.rs
index b3643a26f..4b181a784 100644
--- a/examples/stm32f3/src/bin/blinky.rs
+++ b/examples/stm32f3/src/bin/blinky.rs
@@ -15,7 +15,7 @@ use panic_probe as _;
 async fn main(_spawner: Spawner, p: Peripherals) {
     info!("Hello World!");
 
-    let mut led = Output::new(p.PE12, Level::High, Speed::Low);
+    let mut led = Output::new(p.PA5, Level::High, Speed::Low);
 
     loop {
         info!("high");
diff --git a/examples/stm32f3/src/bin/flash.rs b/examples/stm32f3/src/bin/flash.rs
new file mode 100644
index 000000000..3890f0514
--- /dev/null
+++ b/examples/stm32f3/src/bin/flash.rs
@@ -0,0 +1,43 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::{info, unwrap};
+use embassy::executor::Spawner;
+use embassy_stm32::flash::Flash;
+use embassy_stm32::Peripherals;
+use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
+
+use defmt_rtt as _; // global logger
+use panic_probe as _;
+
+#[embassy::main]
+async fn main(_spawner: Spawner, p: Peripherals) {
+    info!("Hello Flash!");
+
+    const ADDR: u32 = 0x26000;
+
+    let mut f = Flash::unlock(p.FLASH);
+
+    info!("Reading...");
+    let mut buf = [0u8; 8];
+    unwrap!(f.read(ADDR, &mut buf));
+    info!("Read: {=[u8]:x}", buf);
+
+    info!("Erasing...");
+    unwrap!(f.erase(ADDR, ADDR + 2048));
+
+    info!("Reading...");
+    let mut buf = [0u8; 8];
+    unwrap!(f.read(ADDR, &mut buf));
+    info!("Read after erase: {=[u8]:x}", buf);
+
+    info!("Writing...");
+    unwrap!(f.write(ADDR, &[1, 2, 3, 4, 5, 6, 7, 8]));
+
+    info!("Reading...");
+    let mut buf = [0u8; 8];
+    unwrap!(f.read(ADDR, &mut buf));
+    info!("Read: {=[u8]:x}", buf);
+    assert_eq!(&buf[..], &[1, 2, 3, 4, 5, 6, 7, 8]);
+}