Remove generic const expressions from embassy-boot

* Remove the need for generic const expressions and use buffers provided in the flash config.
* Extend embedded-storage traits to simplify generics.
* Document all public APIs
* Add toplevel README
* Expose AlignedBuffer type for convenience.
* Update examples

1 files changed, 5 insertions, 3 deletions

diff --git a/examples/boot/bootloader/stm32/src/main.rs b/examples/boot/bootloader/stm32/src/main.rs
index 45c511ced..bb5d3e531 100644
--- a/examples/boot/bootloader/stm32/src/main.rs
+++ b/examples/boot/bootloader/stm32/src/main.rs
@@ -5,7 +5,7 @@ use cortex_m_rt::{entry, exception};
 #[cfg(feature = "defmt")]
 use defmt_rtt as _;
 use embassy_boot_stm32::*;
-use embassy_stm32::flash::{Flash, ERASE_SIZE};
+use embassy_stm32::flash::{Flash, ERASE_SIZE, ERASE_VALUE, WRITE_SIZE};
 
 #[entry]
 fn main() -> ! {
@@ -19,9 +19,11 @@ fn main() -> ! {
         }
     */
 
-    let mut bl: BootLoader<ERASE_SIZE> = BootLoader::default();
+    let mut bl: BootLoader<ERASE_SIZE, WRITE_SIZE> = BootLoader::default();
     let mut flash = Flash::unlock(p.FLASH);
-    let start = bl.prepare(&mut SingleFlashProvider::new(&mut flash));
+    let start = bl.prepare(&mut SingleFlashConfig::new(
+        &mut BootFlash::<_, ERASE_SIZE, ERASE_VALUE>::new(&mut flash),
+    ));
     core::mem::drop(flash);
     unsafe { bl.load(start) }
 }