Design and Implementation of Uart Protocol for Avionics Applications

Revolutionary strides that serial communication has made in the past four decades, importance of serial communication has been realized and in today's world these serial communication ports are included in even high-end FPGA's. UART is a serial communication protocol which is used as a transmitter and receiver to transmit and receive data asynchronously via UART ports present in FPGA's. UART converts parallel data to serial for transmitting the data and serial data to parallel for receiving the data. For fast transmission of information UART uses Buffer and can also be up to 2 kilo bytes. It has extra registers to provide information about transmission states and flow of data from ports and to govern the plethora of data when accepting device is not prepared to accept the information. UART can glide the data when it has a huge buffer to hoard the data coming from the transmitter and receiver. The size of the buffer is contingent with the design of the UART. This Universal Asynchronous Receiver Transmitter protocols are implemented in Remote data acquisition units (RDAU) present in missiles as a part of telemetry which is an avionics application.