Pic32c: fix unaligned read, always check flash done after flash operations

[rizlik]

No description provided.

[Copilot]

Pull Request Overview

This PR fixes flash operation issues on the PIC32C by ensuring flash operations complete with proper error checking and handling unaligned flash writes. Key changes include defining a specific word size constant, updating the data pointer type for aligned flash writes, and adding a new test case for unaligned flash source writes.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
hal/pic32c.c	Added a new constant for word size, updated flash write function to use uint32_t pointers, and refined error handling after flash operations.
hal/hal.c	Introduced a new unaligned flash write test and modified flash test logic to validate unaligned source handling.

Comments suppressed due to low confidence (1)

hal/hal.c:184

• The comment indicates that src is 40 bytes, but 9 uint32_t elements typically occupy 36 bytes. Please update the comment to accurately reflect the actual size.

    uint32_t src[9]; /* 40 bytes */