In the microcontroller’s world, we usually process just a small amount of data, therefore the RS-232 protocol is more than adequate to handle it. But in the embedded world the RS-232 communication protocol is still being used because of the reliability and simplicity. Today the used of this port is being replaced by the Ethernet protocol and hardware for connecting to the legacy system most PC’s and notebooks nowadays has replaced this port with the USB (Universal Serial Bus). ![]() Actually you could still tracked this history in the /etc/termcap file on many modern Linux distribution later on I will use this table in our project for some terminal command’s information. The RS-232 protocol is used by terminal such as wyse60 or DEC vt100 which connected through direct cable or modem to the UNIX host or legacy system. Working with AVR microcontroller Communication Port Project Decemby rwb, under Microcontroller.īack in the old days the COM port or known as RS-232 (EIA-232 standard) is one of the essential communications protocol and hardware use in many computer system installation start from small UNIX machine to the mainframe.
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