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author | chemicstry <chemicstry@gmail.com> | 2022-07-11 03:57:46 +0300 |
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committer | chemicstry <chemicstry@gmail.com> | 2022-07-11 03:57:46 +0300 |
commit | 734c38eb9c6385dfb51e3934211f140c623fefc8 (patch) | |
tree | fca7bbf4c44d0556836c30cd9555c642f0e6e194 /examples/stm32f4/src/bin | |
parent | c6a11db39ef829adfb8b4903065446c4bb7a2ef4 (diff) | |
download | embassy-734c38eb9c6385dfb51e3934211f140c623fefc8.zip |
Add F4 flash driver
Diffstat (limited to 'examples/stm32f4/src/bin')
-rw-r--r-- | examples/stm32f4/src/bin/flash.rs | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/examples/stm32f4/src/bin/flash.rs b/examples/stm32f4/src/bin/flash.rs new file mode 100644 index 00000000..b531d6f1 --- /dev/null +++ b/examples/stm32f4/src/bin/flash.rs @@ -0,0 +1,57 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +use defmt::{info, unwrap}; +use embassy::executor::Spawner; +use embassy::time::{Duration, Timer}; +use embassy_stm32::flash::Flash; +use embassy_stm32::Peripherals; +use embedded_storage::nor_flash::{NorFlash, ReadNorFlash}; +use {defmt_rtt as _, panic_probe as _}; + +#[embassy::main] +async fn main(_spawner: Spawner, p: Peripherals) { + info!("Hello Flash!"); + + const ADDR: u32 = 0x10_0000; + + // wait a bit before accessing the flash + Timer::after(Duration::from_millis(300)).await; + + let mut f = Flash::unlock(p.FLASH); + + info!("Reading..."); + let mut buf = [0u8; 32]; + unwrap!(f.read(ADDR, &mut buf)); + info!("Read: {=[u8]:x}", buf); + + info!("Erasing..."); + unwrap!(f.erase(ADDR, ADDR + 128 * 1024)); + + info!("Reading..."); + let mut buf = [0u8; 32]; + 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, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, + 30, 31, 32 + ] + )); + + info!("Reading..."); + let mut buf = [0u8; 32]; + unwrap!(f.read(ADDR, &mut buf)); + info!("Read: {=[u8]:x}", buf); + assert_eq!( + &buf[..], + &[ + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, + 30, 31, 32 + ] + ); +} |