Why do we need to calculate the baudrate using the formula,
baud =fCK / (16*USARTDIV)
I mean why can't we write 9600 or any other desired baudrate directly in USART_BRR register? What is the purpose of performing this calculation first? What are we calculating here anyway?
This might be a dumb question to ask, but I am really confused here. Please help.
Thanks in advance!