max/embassy
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Ensure that flash locking is defered to after write

Browse Source
This commit is contained in:
Rasmus Melchior Jacobsen
2023-04-01 18:10:20 +02:00
parent e11eebfa57
commit dd88775871
1 changed files with 13 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
embassy-stm32/src/flash/common.rs
View File

@@ -1,3 +1,4 @@
use atomic_polyfill::{fence, Ordering};
use embassy_hal_common::drop::OnDrop;
use embassy_hal_common::{into_ref, PeripheralRef};
@@ -74,12 +75,18 @@ unsafe fn blocking_write(base: u32, size: u32, offset: u32, bytes: &[u8]) -> Res
for chunk in bytes.chunks(WRITE_SIZE) {
critical_section::with(|_| {
family::clear_all_err();
fence(Ordering::SeqCst);
family::unlock();
fence(Ordering::SeqCst);
family::begin_write();
let _ = OnDrop::new(|| {
fence(Ordering::SeqCst);
let _on_drop = OnDrop::new(|| {
family::end_write();
fence(Ordering::SeqCst);
family::lock();
});
family::blocking_write(address, chunk.try_into().unwrap())
})?;
address += WRITE_SIZE as u32;
@@ -114,10 +121,14 @@ unsafe fn blocking_erase(base: u32, from: u32, to: u32) -> Result<(), Error> {
critical_section::with(|_| {
family::clear_all_err();
fence(Ordering::SeqCst);
family::unlock();
let _ = OnDrop::new(|| {
fence(Ordering::SeqCst);
let _on_drop = OnDrop::new(|| {
family::lock();
});
family::blocking_erase_sector(&sector)
})?;
address += sector.size;