Convert hex value into string

[Sancho_Pansa]

Well ... probably I have to clarify the problem

1. The hexadecimal value is fixed in the form 0xSS (e.g. 0xFF, 0x42, 0xBA, etc.) It cannot be entered in decimal form, it's part of design feautres
   
2. This haxadecimal value have to be added to the string (actually a command that is sent over terminal). And in this command the hexadecimal value should be presented in its "hexadecimal form", but without preceeding 0x.
   

Sincerely,

Sancho