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#![allow(non_snake_case, non_upper_case_globals)]
#![allow(non_camel_case_types)]
//! Flash
//!
//! Used by: stm32l552, stm32l562
#[cfg(not(feature = "nosync"))]
pub use crate::stm32l5::peripherals::flash::Instance;
pub use crate::stm32l5::peripherals::flash::{RegisterBlock, ResetValues};
pub use crate::stm32l5::peripherals::flash::{
ACR, ECCR, LVEKEYR, NSBOOTADD0R, NSBOOTADD1R, NSCR, NSKEYR, NSSR, OPTKEYR, OPTR, PDKEYR,
PRIVCFGR, SECBB1R1, SECBB1R2, SECBB1R3, SECBB1R4, SECBB2R1, SECBB2R2, SECBB2R3, SECBB2R4,
SECBOOTADD0R, SECCR, SECHDPCR, SECKEYR, SECSR, SECWM1R1, SECWM1R2, SECWM2R1, SECWM2R2, WRP1AR,
WRP1BR, WRP2AR, WRP2BR,
};
/// Access functions for the FLASH peripheral instance
pub mod FLASH {
use super::ResetValues;
#[cfg(not(feature = "nosync"))]
use super::Instance;
#[cfg(not(feature = "nosync"))]
const INSTANCE: Instance = Instance {
addr: 0x40022000,
_marker: ::core::marker::PhantomData,
};
/// Reset values for each field in FLASH
pub const reset: ResetValues = ResetValues {
ACR: 0x00000000,
PDKEYR: 0x00000000,
NSKEYR: 0x00000000,
SECKEYR: 0x00000000,
OPTKEYR: 0x00000000,
LVEKEYR: 0x00000000,
NSSR: 0x00000000,
SECSR: 0x00000000,
NSCR: 0xC0000000,
SECCR: 0x80000000,
ECCR: 0x00000000,
OPTR: 0x00000000,
NSBOOTADD0R: 0x0000000F,
NSBOOTADD1R: 0x0000000F,
SECBOOTADD0R: 0x00000000,
SECWM1R1: 0xFF00FF00,
SECWM1R2: 0x0F000F00,
WRP1AR: 0xFF00FF00,
WRP1BR: 0xFF00FF00,
SECWM2R1: 0xFF00FF00,
SECWM2R2: 0x0F000F00,
WRP2AR: 0xFF00FF00,
WRP2BR: 0xFF00FF00,
SECBB1R1: 0x00000000,
SECBB1R2: 0x00000000,
SECBB1R3: 0x00000000,
SECBB1R4: 0x00000000,
SECBB2R1: 0x00000000,
SECBB2R2: 0x00000000,
SECBB2R3: 0x00000000,
SECBB2R4: 0x00000000,
SECHDPCR: 0x00000000,
PRIVCFGR: 0x00000000,
};
#[cfg(not(feature = "nosync"))]
#[allow(renamed_and_removed_lints)]
#[allow(private_no_mangle_statics)]
#[no_mangle]
static mut FLASH_TAKEN: bool = false;
/// Safe access to FLASH
///
/// This function returns `Some(Instance)` if this instance is not
/// currently taken, and `None` if it is. This ensures that if you
/// do get `Some(Instance)`, you are ensured unique access to
/// the peripheral and there cannot be data races (unless other
/// code uses `unsafe`, of course). You can then pass the
/// `Instance` around to other functions as required. When you're
/// done with it, you can call `release(instance)` to return it.
///
/// `Instance` itself dereferences to a `RegisterBlock`, which
/// provides access to the peripheral's registers.
#[cfg(not(feature = "nosync"))]
#[inline]
pub fn take() -> Option<Instance> {
external_cortex_m::interrupt::free(|_| unsafe {
if FLASH_TAKEN {
None
} else {
FLASH_TAKEN = true;
Some(INSTANCE)
}
})
}
/// Release exclusive access to FLASH
///
/// This function allows you to return an `Instance` so that it
/// is available to `take()` again. This function will panic if
/// you return a different `Instance` or if this instance is not
/// already taken.
#[cfg(not(feature = "nosync"))]
#[inline]
pub fn release(inst: Instance) {
external_cortex_m::interrupt::free(|_| unsafe {
if FLASH_TAKEN && inst.addr == INSTANCE.addr {
FLASH_TAKEN = false;
} else {
panic!("Released a peripheral which was not taken");
}
});
}
/// Unsafely steal FLASH
///
/// This function is similar to take() but forcibly takes the
/// Instance, marking it as taken irregardless of its previous
/// state.
#[cfg(not(feature = "nosync"))]
#[inline]
pub unsafe fn steal() -> Instance {
FLASH_TAKEN = true;
INSTANCE
}
}
/// Raw pointer to FLASH
///
/// Dereferencing this is unsafe because you are not ensured unique
/// access to the peripheral, so you may encounter data races with
/// other users of this peripheral. It is up to you to ensure you
/// will not cause data races.
///
/// This constant is provided for ease of use in unsafe code: you can
/// simply call for example `write_reg!(gpio, GPIOA, ODR, 1);`.
pub const FLASH: *const RegisterBlock = 0x40022000 as *const _;
/// Access functions for the SEC_FLASH peripheral instance
pub mod SEC_FLASH {
use super::ResetValues;
#[cfg(not(feature = "nosync"))]
use super::Instance;
#[cfg(not(feature = "nosync"))]
const INSTANCE: Instance = Instance {
addr: 0x50022000,
_marker: ::core::marker::PhantomData,
};
/// Reset values for each field in SEC_FLASH
pub const reset: ResetValues = ResetValues {
ACR: 0x00000000,
PDKEYR: 0x00000000,
NSKEYR: 0x00000000,
SECKEYR: 0x00000000,
OPTKEYR: 0x00000000,
LVEKEYR: 0x00000000,
NSSR: 0x00000000,
SECSR: 0x00000000,
NSCR: 0xC0000000,
SECCR: 0x80000000,
ECCR: 0x00000000,
OPTR: 0x00000000,
NSBOOTADD0R: 0x0000000F,
NSBOOTADD1R: 0x0000000F,
SECBOOTADD0R: 0x00000000,
SECWM1R1: 0xFF00FF00,
SECWM1R2: 0x0F000F00,
WRP1AR: 0xFF00FF00,
WRP1BR: 0xFF00FF00,
SECWM2R1: 0xFF00FF00,
SECWM2R2: 0x0F000F00,
WRP2AR: 0xFF00FF00,
WRP2BR: 0xFF00FF00,
SECBB1R1: 0x00000000,
SECBB1R2: 0x00000000,
SECBB1R3: 0x00000000,
SECBB1R4: 0x00000000,
SECBB2R1: 0x00000000,
SECBB2R2: 0x00000000,
SECBB2R3: 0x00000000,
SECBB2R4: 0x00000000,
SECHDPCR: 0x00000000,
PRIVCFGR: 0x00000000,
};
#[cfg(not(feature = "nosync"))]
#[allow(renamed_and_removed_lints)]
#[allow(private_no_mangle_statics)]
#[no_mangle]
static mut SEC_FLASH_TAKEN: bool = false;
/// Safe access to SEC_FLASH
///
/// This function returns `Some(Instance)` if this instance is not
/// currently taken, and `None` if it is. This ensures that if you
/// do get `Some(Instance)`, you are ensured unique access to
/// the peripheral and there cannot be data races (unless other
/// code uses `unsafe`, of course). You can then pass the
/// `Instance` around to other functions as required. When you're
/// done with it, you can call `release(instance)` to return it.
///
/// `Instance` itself dereferences to a `RegisterBlock`, which
/// provides access to the peripheral's registers.
#[cfg(not(feature = "nosync"))]
#[inline]
pub fn take() -> Option<Instance> {
external_cortex_m::interrupt::free(|_| unsafe {
if SEC_FLASH_TAKEN {
None
} else {
SEC_FLASH_TAKEN = true;
Some(INSTANCE)
}
})
}
/// Release exclusive access to SEC_FLASH
///
/// This function allows you to return an `Instance` so that it
/// is available to `take()` again. This function will panic if
/// you return a different `Instance` or if this instance is not
/// already taken.
#[cfg(not(feature = "nosync"))]
#[inline]
pub fn release(inst: Instance) {
external_cortex_m::interrupt::free(|_| unsafe {
if SEC_FLASH_TAKEN && inst.addr == INSTANCE.addr {
SEC_FLASH_TAKEN = false;
} else {
panic!("Released a peripheral which was not taken");
}
});
}
/// Unsafely steal SEC_FLASH
///
/// This function is similar to take() but forcibly takes the
/// Instance, marking it as taken irregardless of its previous
/// state.
#[cfg(not(feature = "nosync"))]
#[inline]
pub unsafe fn steal() -> Instance {
SEC_FLASH_TAKEN = true;
INSTANCE
}
}
/// Raw pointer to SEC_FLASH
///
/// Dereferencing this is unsafe because you are not ensured unique
/// access to the peripheral, so you may encounter data races with
/// other users of this peripheral. It is up to you to ensure you
/// will not cause data races.
///
/// This constant is provided for ease of use in unsafe code: you can
/// simply call for example `write_reg!(gpio, GPIOA, ODR, 1);`.
pub const SEC_FLASH: *const RegisterBlock = 0x50022000 as *const _;