The baud rate measures how many bits per second the UART can send or receive.
Most UARTS (Universal Asynchronous Receiver/Transmitters) include a clock circuit built into the chip that can be configured to control this pace.
B= (1.8432 x 10^6)/D
D= 115200/B
Thus,
where D must be entered into the UART and is referred to as the baud rate divisor.
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