Q: What are the best practices for STM32 flash memory organization and boot sequence?
Answer
STM32 boots from System Memory (bootloader) to Flash to SRAM based on BOOT0 pin/option byte. Flash is organized into pages (2-256 KB depending on device). The vector table must be aligned to VTOR. For dual-bank Flash (STM32F4xx) bank switching enables OTA firmware updates without interruption. Flash read-while-write (RWW) is supported on most high-density devices. Erase is page-wise; program is 256-byte aligned. Always check BSY bit before next write. Consider enabling flash prefetch buffer and ART Accelerator for zero-wait-state execution at high clock speeds.
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