Thanks Alfred for your attention.
I have used AVRCodevision for preparation of my code. I choose 16MHz for CPU clock, a range between 600 to 57600 for baudrate, and official datasheet of my MCU (atmega16A) for transmit data code printF(x) in various source codes. I could see the output of TXD port on oscilloscope but nothing have been transmitting to computer. I have used Matlab, Simulink , and realterm for data capturing in laptop.