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

stm32u5: Add flash bank selection when erasing a sector

Browse Source
This commit is contained in:
William 2024-11-27 17:29:08 +01:00
parent 7a9c488996
commit b035ff1145
1 changed files with 13 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
embassy-stm32/src/flash/u5.rs
View File

@ -1,7 +1,7 @@
use core::ptr::write_volatile; use core::ptr::write_volatile;
use core::sync::atomic::{fence, Ordering}; use core::sync::atomic::{fence, Ordering};
use super::{FlashRegion, FlashSector, FLASH_REGIONS, WRITE_SIZE}; use super::{FlashBank, FlashRegion, FlashSector, FLASH_REGIONS, WRITE_SIZE};
use crate::flash::Error; use crate::flash::Error;
use crate::pac; use crate::pac;
@ -70,12 +70,22 @@ pub(crate) unsafe fn blocking_erase_sector(sector: &FlashSector) -> Result<(), E
#[cfg(feature = "trustzone-secure")] #[cfg(feature = "trustzone-secure")]
pac::FLASH.seccr().modify(|w| { pac::FLASH.seccr().modify(|w| {
w.set_per(pac::flash::vals::SeccrPer::B_0X1); w.set_per(pac::flash::vals::SeccrPer::B_0X1);
w.set_pnb(sector.index_in_bank) w.set_pnb(sector.index_in_bank);
// TODO: add check for bank swap
w.set_bker(match sector.bank {
FlashBank::Bank1 => pac::flash::vals::SeccrBker::B_0X0,
FlashBank::Bank2 => pac::flash::vals::SeccrBker::B_0X1,
});
}); });
#[cfg(not(feature = "trustzone-secure"))] #[cfg(not(feature = "trustzone-secure"))]
pac::FLASH.nscr().modify(|w| { pac::FLASH.nscr().modify(|w| {
w.set_per(pac::flash::vals::NscrPer::B_0X1); w.set_per(pac::flash::vals::NscrPer::B_0X1);
w.set_pnb(sector.index_in_bank) w.set_pnb(sector.index_in_bank);
// TODO: add check for bank swap
w.set_bker(match sector.bank {
FlashBank::Bank1 => pac::flash::vals::NscrBker::B_0X0,
FlashBank::Bank2 => pac::flash::vals::NscrBker::B_0X1,
});
}); });
#[cfg(feature = "trustzone-secure")] #[cfg(feature = "trustzone-secure")]