Failed to receive data

[MartinStokelj]

Hello, i have problem, that sometimes my receive do not get anything in que. when i reboot application i get the data. What can be the reason? i create mavlink whith this code

MavLinkGenericTransport mLinkTransport = null; string port = "UDP 192.168.168.2:20002"; if (port.StartsWith("UDP")) { var a = port.Substring(port.IndexOf(' ') + 1).Split(':'); mLinkTransport = new MavLinkUdpTransport() { MavlinkSystemId = 0xFF, MavlinkComponentId = 0xBE, TargetIpAddress = IPAddress.Parse(a[0]), UdpListeningPort = int.Parse(a[1]), UdpTargetPort = int.Parse(a[1]), }; } else { mLinkTransport = new MavLinkSerialPortTransport() { SerialPortName = port, BaudRate = 115200 }; } mLinkTransport.OnPacketReceived += mLinkTransport_OnPacketReceived; mLinkTransport.OnError += mLinkTransport_OnError; mLinkTransport.OnRawBufferSent += mLinkTransport_OnRawBufferSent; mLinkTransport.Initialize();

and at the end i dispose with:

mLinkTransport.Dispose(); mLinkTransport = null;

if connection does not get anything in 15sec i dispose mLinkTransport and then i create it again, but it does not help. The sending works great even if i have problems with OnPacketReceived mLinkTransport.SendMessage(msg);

[MartinStokelj]

I found the problem, send/receive in our case should work like

• send packet
• receive packet as response the problem was that i was sending UasV2Extension (248) with payload size 60 but in mavlink i had payload size set to 15. So the sended data was actualy wrong and because of that i did not receive response packet.

To solve this problem i had to edit the mavlink library to set payload corectly, according to sended/received data length and not according to auto generated payload.