TASK:

Your task is to write code which handles a sequence of input characters

from the UART interface, and responds with the output specified below.

On receipt of the character sequence:

$-$ "foo" your program should print $\text{'}0\text{'}.$

$-$ "bar" your program should print $\text{'}1\text{'}.$

$-$ "foobar" your program should not print either $\text{'}0\text{'}$ or $\text{'}1\text{'}$ as specified

above, but should instead print a linefeed $\text{'}$

$\text{'}$ character.

NOTE:

It is strongly recommended that you design a state machine to complete

this task.

Your solution should use a baud rate of $9600,$ and $8$N$1$ frame format. Your

solution MUST NOT use qutyio.o or qutyserial.o$.$

EXAMPLES:

INPUT: $...$foo.bar.foo.barfoobarfood

OUTPUT: $0101$

$0$

$($START$)0101$

$0($END$)$

INPUT: barsfoosbarforbarfoobarrforfoobarfoobarfood

OUTPUT: $1011$

$0$

$($START$)1011$