Creating and modifying Analog Input objects

[mmenard]

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Hello everyone!

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I’m currently working on a project where I need to create virtual objects in a gateway. Those virtual objects will be use when my  gateway will dynamically connect ZigBee thermostats. I’m working on Linux Ubuntu 20.04.

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Using the gateway example in apps/gateway/main from stack 1.0.0, I think I’ve been able to create virtual Analog_Input objects with a simple Analog_Input_Init() (please correct me if it is not the proper way to create AI objects). I’m currently trying to modify the present value of one of the Analog_Input object by using the function Analog_Input_Present_Value_Set(Object_Instance, Value_Test). Even if Value_Test is<o:p></o:p>

equal to 100.0 (float) the object present value always stays to 0.0 (when I do : printf( "Value is %f ", Analog_Input_Present_Value(Object_Instance)). <o:p></o:p>

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I’ve done some test in the terminal and I’m confident that the virtual objects are simply identified as 1,2,3,4,5,… So this function Analog_Input_Present_Value_Set(1, 100.0) should attributes 100.0 to object 1.<o:p></o:p>

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Interestingly enough,  I’ve put printf() in the function Analog_Input_Present_Value_Set and the value is automatically reset to 0.0 (the first line of the function). I checked the value of my second parameter just before I call this function and it is a equal to 100.0.<o:p></o:p>

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Also, I was trying to install a proper debugger in VS Code. It is working with a simple helloworld.cpp file, but I struggle to make it work with the BACnet gateway project. I don’t know if you guys have a better setup than me?<o:p></o:p>

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Thank you,<o:p></o:p>

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Maxime<o:p></o:p>

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[mmenard]

Hi everyone,

Don't lose your time on this problem, I finally found that when I declare : float Value_Test =100.0; and I pass this variable in Analog_Input_Present_Value_Set(1, Value_Test)
I give the function a DOUBLE instead of a FLOAT type. When I do Analog_Input_Present_Value_Set(1, 100.0F) the function works as expected. I found it by passing the structure of an Analog_Input object with Analog_Input_Present_Value_Set(1, AI_Descr[index].Present_Value).

Best Regards,

Maxime

[mmenard]

Hi everyone,

Finally none of what I said is true, the only problem was that I forget to include ai.h that's all! Before that, gcc gave me warnings and build the project like everything is fine. Now I get less warning and less problems!

Also, about the debugging in VS Code I added "CFLAGS += -g -O0" at the top of the main makefile found in the stack folder. With this, I'm able to debug properly.

Maxime