Abnormal busy, done behavoir on Iot Mqtt Publish FUB

[sclaiborne]

Description

The Busy, Done behavior is unexpected. AS variable trace attached.

AR: E4.53
IotMqtt: rev5, 4.53

I am seeing the Busy status goes TRUE sometime after Send goes TRUE (sometimes). I would expect the Busy to go High with Send and stay TRUE until done goes TRUE.

I am also seeing the Done bit say TRUE for 2 cycles, when I would expect it to be TRUE for just 1 cycle.

Code

Note buildPacket will populate publishMessage and return a length.

PROGRAM _INIT
	IotMqttPublish_0.QoS := IotMqtt_QoS0; // We are sending enough data, dont confirm its recieved
END_PROGRAM

PROGRAM _CYCLIC
	IotMqttPublish_0.IotMqttLink := gMqttApi.link;
	IotMqttPublish_0.Enable := Configuration.enable;

	IF (IotMqttPublish_0.Active 
		AND gMqttApi.connected) THEN
		
		IotMqttPublish_0.Topic := ADR(Configuration.topic);
		
		// Send data
		IF NOT IotMqttPublish_0.Busy AND NOT IotMqttPublish_0.Done AND NOT IotMqttPublish_0.Error THEN
		
			// Build packet
			IotMqttPublish_0.Send := TRUE;
			IotMqttPublish_0.Buffer := ADR(publishMessage);
			IotMqttPublish_0.BufferLength := buildPacket(ADR(publishMessage), SIZEOF(publishMessage), ADR(encodeError));
		END_IF
		
	END_IF
	
	IF IotMqttPublish_0.Enable OR (IotMqttPublish_0.IotMqttLink <> 0) THEN
		IotMqttPublish_0();
		IF IotMqttPublish_0.Done THEN
			// This is so we can send packets back to back
			IotMqttPublish_0.Send := FALSE;
//			IotMqttPublish_0();
		END_IF
	END_IF
	
END_PROGRAM

PROGRAM _EXIT
	IotMqttPublish_0(Enable := FALSE); 
END_PROGRAM

[priesf]

Hi, thanks for pointing this out.
We will try to have a look at some point. I'm quite busy at the moment.

[DavidWLoupe]

Respectfully, I'm curious if there has been any development on this issue

[priesf]

Hi, I'm sorry that there is very little information at the moment.
There is no solution available. Analysis is still ongoing.