in C++

/*

* combo_lock_app.cpp

////////////////////////////////////////////////////////////////////////////////////////

/////// DELIVERABLE 1: Put your name and date above mine = shared credit for code. /////

////////////////////////////////////////////////////////////////////////////////////////

*

* Created: 1/16/2020 7:53:34 PM

* Author : carrolls

*/

// Hardware Dependencies: Momentary switch to ground on PC0 and PC1. LED to ground on PB5.

#include

#include "combo_lock.h"

void blink_thrice()

{

for (int8_t n = 0; n < 3; n++)

////////////////////////////////////////////////////////////////////////////////////////////

// DELIVERABLE 2: YOU WRITE CODE TO BLINK ONCE, FOR ABOUT A SECOND; LET THE LOOP TRIPLE IT.

// GIVEN FUNCTIONS = void LED_on();void LED_off(); They do the obvious things.

////////////////////////////////////////////////////////////////////////////////////////////

}

int main(void)

{

blink_thrice();

while (1)

{

static int combo_correct_bits = 0;

// Busy-wait for a button activity

while (!C_button_read(0) && !C_button_read(1)) {;}

bool c0 = C_button_read(0); // Read the two buttons

bool c1 = C_button_read(1);

switch(combo_correct_bits) // Decide if correct

{

case -1: for (int32_t n = 0; n< 1234567; n++){;}

blink_thrice();

combo_correct_bits = 0;

break;

case 0: if (c0 == BTN_ACTIVE && c1==BTN_INACTIVE){

combo_correct_bits++;

} else {

combo_correct_bits = -1;

}

break;

////////////////////////////////////////////////////////////////////////////////////////////

// DELIVERABLE 3: WRITE CASES 1 & 2 to run LED_on() only if the user presses exactly 0-0-1.

// If they hit a wrong button, set combo_correct to -1 and let case -1

// blink at them (after a delay). Use c0 and c1, not C_button_read().

////////////////////////////////////////////////////////////////////////////////////////////

case 1:

case 2:

default: combo_correct_bits = -1;

}

//////////////////////////////////////////////////////////////////////////////////////////

// DELIVERABLE 4: YOU WRITE A LOOP HERE TO WAIT FOR THE USER TO LET GO OF THE BUTTON

// DELIVERABLE 5: WRITE A NOTE - WHAT WILL HAPPEN IF YOU OMIT THIS?

///////////////////////////////////////////////////////////////////////////////////////////

}

////////////////////////////////////////////////////////////////////////////////////////////

// DELIVERABLE 6: Show me that your machine works. YOU decide how; I'll call your experiment

// "convincing" or "unconvincing." HINT: include pressing BOTH buttons at once. Do you need

// to reset your system after each error, or can you just dial a new combo after a failure?

// What about after a success?

//

// DELIVERABLE 7: WRITE YOUR TESTS AS A CHECKLIST.

////////////////////////////////////////////////////////////////////////////////////////////