Bus Assignment creates new copy of variable in generated code ?

Hi,

I have created one bus using Bus Creator and the output has been written to 'My_Signal' (Simulink.Signal object). That signal is fed to another subsystem through port.

I am using Bus Assignment to update one field of bus. Generated code looks like this,

My_Signal.Field_1= 5;
My_Signal.Field_2= 6;
...
...
...
% Subsystem2
rtb_My_Signal=My_Signal;
rtb_My_Signal.Field_2=10;
...
..

I do not understand why Embedded coder is creating new parameter ? Is it possible to reduce the unneccasry bus copy ?

I want the generated code looks like below

My_Signal.Field_1= 5;
My_Signal.Field_2= 6;
...
...
...
% Subsystem 2
My_Signal.Field_2=10;

[Shivaputra Narke]

Looking for the in-built solution. I was able to generate required code using tlc files. But it's good to have a built in solution.

[Helia Pouyllau]

Hello, I am facing the same issue, do you have some documentation about how to use tlc files to avoid the copy ?

[Shivaputra Narke]

Have you tried using Data Store Read and Data Store Write blocks ?