iOSDFULibrary固件升级代码和踩的坑

//固件升级代码（设置代理之类的就不说了，代码这么多原理也看不过来）
//
DFUFirmware *selectedFirmware = [[DFUFirmware alloc] initWithZipFile:firmWareData];
    dispatch_queue_t eventQueue = dispatch_queue_create("com.ota.updater", DISPATCH_QUEUE_CONCURRENT);
    DFUServiceInitiator * dfuInitiator = [[DFUServiceInitiator alloc] initWithQueue:eventQueue delegateQueue:eventQueue progressQueue:eventQueue loggerQueue:eventQueue];
    dfuInitiator = [dfuInitiator withFirmware:selectedFirmware];
    dfuInitiator.delegate = self;
    dfuInitiator.progressDelegate = self;
    dfuInitiator.logger = self;
///这个设置无关精要
    //dfuInitiator.packetReceiptNotificationParameter = 4;
///之前一直处理不成功，自动断开连接然后又一直重试连接，重试是sdk搞出来的事情，最后发现是一直在尝试给硬件设置名称（我们的硬件这类命令发过去都是要先绑定和授权的）所以一直失败，由此设置这个属性不让它进行这种莫名其妙的操作，接下来就是见证奇迹的时刻了
    dfuInitiator.alternativeAdvertisingNameEnabled = NO;
    dfuInitiator.enableUnsafeExperimentalButtonlessServiceInSecureDfu = YES;
self.dfuController = [[dfuInitiator withFirmware:selectedFirmware] startWithTarget:peripheral];

不进行这个配置，使用其他工具 nRF Connect上报的错误信息（后来看这个报错也比较明确说了处理方式）

[Callback] Central Manager did disconnect peripheral
Disconnected by the remote device
Buttonless service not configured, see: https://devzone.nordicsemi.com/f/nordic-q-a/59881/advertising-rename-feature-not-working/243566#243566. To workaround, disable alternative advertising name.
Connecting to T001...
centralManager.connect(peripheral, options: nil)
[Callback] Central Manager did connect peripheral
Connected to T001
Discovering services...

系统给出的断连错误信息：

Error Domain=CBErrorDomain Code=6 "The connection has timed out unexpectedly." UserInfo={NSLocalizedDescription=The connection has timed out unexpectedly.}