Assignment Details

In this assignment, you will implement a $4-$bit binary counter with adjustable counting

rate. Counting rate and counting direction will be controlled via connected switches. Since this

is a $4-$bit binary counter each connected LED will represent one bit of the counter. For example,

following figure show how you should represent binary $0010$ and $1011.$

Two of the connected switches will be controlling rate of the counting and remaining

switch will determine direction of the counting. When switch $1$ is closed counter should be in

increasing order and when switch $1$ is open counter should be in decreasing order. Switch $2$

and switch $3$ should control the counting rate according to table below:

For example, if switch $1$ and switch $3$ are open and switch $2$ is closed, your counter

should count down with rate of $500ms.$

Important Requirements

You must be able to change switch configurations during run$-$time, so we don't want you

to re$-$start your program for every configuration.

You must not reset your counter when order of the counting changed during the run time.

In other words, when the order is changed, you must start counting from the last number

before order is changed.

You must be able to change counting rate in the run$-$time without resetting the counter.

We are using FRDM KL$25$Z board. Please help with the implementation of the source code.