I have create a custom generic message class in iOS, to pass some data value to nordic device, in generic onoff server. Here i face problem that when i try to send the message to nordic device, it sends again again the message.

[SummitSahoo]

 when i use that message to  pass some data value to nordic device,  in generic onoff server. i face problem that when i try to send the message to nordic device, it sends again again the message. In console log appear as resending the message in access layer. After 3 to 4 try it get canceled with a error message. I use docklight to check receive message in nordic device  and it verify that it receive the message. i am using the nrf5 sdk 540 device to test.

message parameter contain [int8] array

import Foundation
public struct GenericConfigSet: GenericMessage, TransactionMessage, TransitionMessage {
    
    public static let opCode: UInt32 = 0x8206
   // public static let responseType: StaticMeshMessage.Type = GenericLevelStatus.self
    
    public var tid: UInt8!
    public var parameters: Data? {
        let data = Data() + byteArray + tid
        if let transitionTime = transitionTime, let delay = delay {
            return data + transitionTime.rawValue + delay
        } else {
            return data
        }
    }
    
    /// The target value of the Generic Level state.
    public let byteArray: [UInt8]
    
    public let transitionTime: TransitionTime?
    public let delay: UInt8?
    
    
    public init(parameter: [UInt8]) {
        self.byteArray = parameter
        self.transitionTime = nil
        self.delay = nil
    }
    
    
    /// - parameters:
    ///   - transitionTime: The time that an element will take to transition
    ///                     to the target state from the present state.
    ///   - delay: Message execution delay in 5 millisecond steps.
    public init(parameter: [UInt8], transitionTime: TransitionTime, delay: UInt8) {
        self.byteArray = parameter
        self.transitionTime = transitionTime
        self.delay = delay
    }
    
    public init?(parameters: Data) {
        
        print("\n call by system \n")
        guard parameters.count == 3 || parameters.count == 5 else {
            return nil
        }
        byteArray = [parameters[0]]   //check for any error later.
        tid = parameters[2]
        if parameters.count == 5 {
            transitionTime = TransitionTime(rawValue: parameters[3])
            delay = parameters[4]
        } else {
            transitionTime = nil
            delay = nil
        }
    }
    
}

[Hung Bui]

Hi Summit, 

Could you show the code where you sent the message ? 
Note that if you sent the message as a reliable message (requires acknowledge) the phone expect to get the reply packet from the mesh node. In your mesh code do you have that reply implemented ? 
Do you see the same problem when testing with the stock generic on off server ? 

[SummitSahoo]

no sir i am not implement any reply code ? can you plz tell me how to implement, and where to implement that.

[Hung Bui]

You can have a look at the Generic ON OFF model. In function handle_set() you can find that status_send() is called when handling the set command. This is to reply (ACK) to a set command . Inside status_send() you can find access_model_reply() is called. 

[SummitSahoo]

But Sir, i don't find any Generic on off model, in library there are only generic on off -  get, set, status.

And there a file GenericOnOffServerDelegate. do you mean that?.  (i m asking for swift library)

[Hung Bui]

Hi, 
When I say replying packet, it's the reply from the mesh node. Not from the phone. 

When the phone sending generic onoff set, it expecting to have a reply from the node (nRF52)

Please make sure that was implemented on the node as I mentioned in last reply.

[SummitSahoo]

Can you please tell me, how implement that function in node!

[Hung Bui]

Have you looked at the code inside generic_onoff_server.c ? and follow my suggestion: 

You can have a look at the Generic ON OFF model. In function handle_set() you can find that status_send() is called when handling the set command. This is to reply (ACK) to a set command . Inside status_send() you can find access_model_reply() is called.