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Align F3 family

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This commit is contained in:
Rasmus Melchior Jacobsen 2023-03-25 06:05:37 +01:00
parent 6c73b23f38
commit 7edd72f8f5
1 changed files with 14 additions and 7 deletions
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21
embassy-stm32/src/flash/f3.rs
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@ -1,9 +1,14 @@
use core::convert::TryInto;
use core::mem::size_of;
use core::ptr::write_volatile;
use super::FlashRegion;
use crate::flash::Error;
use crate::pac;
pub(crate) const MAX_WRITE_SIZE: usize = super::MAINA::WRITE_SIZE;
pub(crate) const MAX_ERASE_SIZE: usize = super::MAINA::ERASE_SIZE;
pub(crate) unsafe fn lock() {
pac::FLASH.cr().modify(|w| w.set_lock(true));
}
@ -13,15 +18,17 @@ pub(crate) unsafe fn unlock() {
pac::FLASH.keyr().write(|w| w.set_fkeyr(0xCDEF_89AB));
}
pub(crate) unsafe fn blocking_write(offset: u32, buf: &[u8]) -> Result<(), Error> {
pub(crate) unsafe fn blocking_write(first_address: u32, buf: &[u8]) -> Result<(), Error> {
pac::FLASH.cr().write(|w| w.set_pg(true));
let ret = {
let mut ret: Result<(), Error> = Ok(());
let mut offset = offset;
for chunk in buf.chunks(2) {
write_volatile(offset as *mut u16, u16::from_le_bytes(chunk[0..2].try_into().unwrap()));
offset += chunk.len() as u32;
let mut address = first_address;
let chunks = buf.chunks_exact(size_of::<u16>());
assert!(chunks.remainder().is_empty());
for chunk in chunks {
write_volatile(address as *mut u16, u16::from_le_bytes(chunk.try_into().unwrap()));
address += chunk.len() as u32;
ret = blocking_wait_ready();
if ret.is_err() {
@ -36,8 +43,8 @@ pub(crate) unsafe fn blocking_write(offset: u32, buf: &[u8]) -> Result<(), Error
ret
}
pub(crate) unsafe fn blocking_erase(from: u32, to: u32) -> Result<(), Error> {
for page in (from..to).step_by(super::ERASE_SIZE) {
pub(crate) unsafe fn blocking_erase(from_address: u32, to_address: u32) -> Result<(), Error> {
for page in (from_address..to_address).step_by(MAX_ERASE_SIZE) {
pac::FLASH.cr().modify(|w| {
w.set_per(true);
});