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Revert "feat(boot): introduce non-erase flash write method "

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This reverts commit 2e8b7d2590.
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Badr Bouslikhin 2024-02-11 19:37:48 +01:00
parent 2a09996a78
commit 8f7d80f9f7
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embassy-boot/src/firmware_updater/blocking.rs
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@ -225,41 +225,6 @@ impl<'d, DFU: NorFlash, STATE: NorFlash> BlockingFirmwareUpdater<'d, DFU, STATE>
Ok(())
}
/// Write data directly to a flash page without erasing it first.
///
/// This function writes the provided data to the specified offset in the flash memory,
/// without performing an erase operation beforehand. It is crucial that the area being
/// written to is either already erased.
/// This method is intended to be used in conjunction with the `prepare_update` method.
///
/// The buffer must follow the alignment requirements of the target flash and be a multiple of
/// the page size. This is essential to ensure data integrity and prevent corruption.
///
/// # Safety
///
/// This function requires careful management of the memory being written to. Writing to a
/// non-erased page or not adhering to alignment and size requirements may result in a panic.
///
/// Ensure that the data being written is compatible with the current contents of the flash
/// memory, as no erase operation will be performed to reset the page content to a default state.
///
/// # Parameters
///
/// - `offset`: The offset within the DFU partition where the data will be written. Must be
/// aligned according to the flash's requirements and within the writable memory range.
/// - `data`: A reference to the slice of bytes to be written. The length of the data must not
/// exceed the partition size and must follow the flash's alignment requirements.
///
/// # Returns
///
/// A result indicating the success or failure of the write operation. On success, returns `Ok(())`.
/// On failure, returns an `Err` with a `FirmwareUpdaterError` detailing the cause of the failure.
pub fn write_firmware_without_erase(&mut self, offset: usize, data: &[u8]) -> Result<(), FirmwareUpdaterError> {
self.dfu.write(offset as u32, data)?;
Ok(())
}
/// Prepare for an incoming DFU update by erasing the entire DFU area and
/// returning its `Partition`.
///