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芯片型号为FR8008A，OTA结束后ROM擦写切换时，发现需要3秒左右的时间，而外置看门狗最大复位时间1.1秒，导致FR8008A一直启动失败，这种情况应该怎么处理，有什么软件的办法加快程序的切换速度吗？