Your task is to implement a two$-$tone siren using the QUTy. You must use

one of the Waveform Outputs of TCA$0$ to drive the buzzer with a $50\%$ duty

cycle signal.

Your siren must alternate between the following frequencies:

f$1=2130$ Hz with f$1$ active for t$1=370$ ms

f$2=4590$ Hz with f$2$ active for t$2=670$ ms NOTES:

Your program must use either TCA or TCB to time the duration of each

tone. Do not use software based delays.

Your program must be interrupt driven. The main$()$ function expects

init$()$ to return to demonstrate this.

You may define additional variables and functions that are used by

init$(),$ in this file.

$*/$

$//$ This function is called once by the main$()$ function.