Displaying Serial Data

--- Quote Start ---

What simulation tool do you use?

--- Quote End ---

I am using the simulator in Quartus II

Similar actions are usually performed in a HDL testbench with full featured simulators as ModelSim. They are particularly necessary when you want your debugging enviroment to interact with your design. You may want to simulate an external device that answers a command send by your design, with the same timing as the real device. For your convenience, you may want to simply use an existing HDL design of the external device to generate this behaviour.

Quartus simulator doesn't have a testbench option, but you can modify your design to include part of the debugging enviroment, also a decoder for internal signals, as requested. If you want to perform these actions more than once, it's a good idea to learn ModelSim operation.

--- Quote Start ---

Similar actions are usually performed in a HDL testbench with full featured simulators as ModelSim. They are particularly necessary when you want your debugging enviroment to interact with your design. You may want to simulate an external device that answers a command send by your design, with the same timing as the real device. For your convenience, you may want to simply use an existing HDL design of the external device to generate this behaviour.

Quartus simulator doesn't have a testbench option, but you can modify your design to include part of the debugging enviroment, also a decoder for internal signals, as requested. If you want to perform these actions more than once, it's a good idea to learn ModelSim operation.

--- Quote End ---

Thanks for the explanation

In the ModelSim simulation tool it is easy. See the attached picture.

Modelsim Altera Starter Edition is provided for free together with Quartus II web-edition.