我一直在使用nrf51x。我有一个用Obj-C编写的示例代码。我无法将其转换为Swift。
uint8_t value = ACTIVATE_AND_RESET_REQUEST;
[self.bluetoothPeripheral writeValue:[NSData dataWithBytes:&value length:sizeof(value)] forCharacteristic:self.dfuControlPointCharacteristic type:CBCharacteristicWriteWithResponse];
我试过了
var value: UInt8 = DfuOperations.VALIDATE_FIRMWARE_REQUEST.rawValue
let ptr = UnsafePointer<Void>(value)
let data = NSData(ptr, length: sizeofValue(value))
dfuPeripheral!.writeValue(data, forCharacteristic: self.dfuControlPointCharacteristic, type: CBCharacteristicWriteType.WithResponse)
和这个
var value: UInt8 = DfuOperations.VALIDATE_FIRMWARE_REQUEST.rawValue
let data = NSData(&value, length: sizeofValue(value))
谁能帮我？非常感谢你
感谢@Robert的回答，我找到了解决方案。最后，我创建了一个将[UInt8]数组写入CBCharacteristic的方法。这是代码：
func updateValueForCharacteristic(characteristic: CBCharacteristic, value: [UInt8], writeType: CBCharacteristicWriteType = CBCharacteristicWriteType.WithResponse){
let data = NSData(bytes: value, length: sizeofValue(value))
dfuPeripheral!.writeValue(data, forCharacteristic: characteristic, type: writeType)
}
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我来说两句