stm32/flashbdev: Protect flash writes from cache flushing and USB MSC.
@@ -265,8 +265,10 @@ bool flash_bdev_writeblock(const uint8_t *src, uint32_t block) {
// bad block number
return false;
}
+ uint32_t basepri = raise_irq_pri(IRQ_PRI_FLASH); // prevent cache flushing and USB access
uint8_t *dest = flash_cache_get_addr_for_write(flash_addr);
memcpy(dest, src, FLASH_BLOCK_SIZE);
+ restore_irq_pri(basepri);
return true;
}
