How to use String in VHDL or Verilog.

Whenever you want to use VHDL (or Verilog) code to send text to the UART or LCD, you must write the text in hexadecimal format. I thought it was very annoying. So, I was looking for an answer that could save my patience. However, everything I have found is no different in any way.

I could not bear it. So I tried to convert the text of an ASCII string into a hexadecimal array automatically, like this :
Refer to line #123