Exercise $1$ UART $(10$ marks$)$

In this exercise you will be develop a program that will run on the NUC$140$ board, to send and receive data between the NUC$140$ Board and your laptop. From laptop side, you need an additional USB$-$UART adapter together with Terminal software to facilitate the communication. The diagram of the system can be simplified as follows:

The program has the following specifications:

a$.$ Clock frequency of the CPU is at $50$ MHz

b$.$ UART channel $0$ specification:

o UART clock source is $22\mathrm{.}1184$ MHz

o UART$0$ channel is used to transmit data and receive data.

o Data packet: $1$ start bit $+8$ data bit $+$ no parity bit $+1$ stop bit

o Baud rate: $115200$ bps

After the reset, the board is standing by to wait for data to send from laptop. You will send the message $$HELLO$,$ THIS IS $,,,$ FROM TEAM $$ from Terminal to the NUC$140$ board. The board will receive the message and send it back to the laptop. If the setting is successful implemented, you can see the message re$-$appear in the RX box of Terminal.

For this exercise $1,$ you must use UART Interrupts for both TX and RX$.$ Receive the message

from NUC$140$ board and display

here

Macros

Set Macros

$\begin{array}{cc}M8& M20\end{array}$

$+CR$

Send

Rx: $0,$ Tx: $0$ NUC$140$ Board

USB$-$VATT

Adapter