File content as of revision 2:e504a3cfe113:

/**
@file main.h
@brief Header file containing functions prototypes, defines and global variables.
@brief Revision 1.0.
@author Daniel Gibbons
@date   March 2016
*/

#ifndef MAIN_H
#define MAIN_H

#define PI 3.14159265359

#include "mbed.h"
#include "N5110.h"
#include "SRF02.h"


/**  
@namespace lcd
@brief N5110 LCD connections
@namespace srf02
@brief SRF02 sensor connections
@namespace pc
@brief UART connection to PC for debugging
@namespace led_alarm
@brief LED to indicate status of the alarm: flashing -> setting or triggered ; constant -> set
@namespace buzzer
@brief indicates status of the alarm: buzzes when alarm is setting and when triggered
@namespace zero
@brief first button input
@namespace one
@brief second button input
@namespace confirm
@brief third button input
@namespace read_distance
@brief K64F fires to read distance
@namespace sw2
@brief K64F on-board switch
@namespace sw3
@brief K64F on-board switch
@namespace r_led
@brief K64F on-board red LED
@namespace g_led
@brief K64F on-board green LED
@namespace b_led
@brief K64F on-board blue LED

*/

//         VCC, SCE, RST, D/C, MOSI, SCLK, LED
N5110 lcd(PTE26,PTA0,PTC4,PTD0,PTD2,PTD1,PTC3);
SRF02 srf02(I2C_SDA,I2C_SCL);
Serial pc(USBTX,USBRX);
PwmOut led_alarm(PTC10);
PwmOut buzzer(PTC11);
InterruptIn button_0(PTB23);
InterruptIn button_1(PTA2);
InterruptIn button_c(PTC2);
Ticker read_distance;

InterruptIn sw2(SW2);
InterruptIn sw3(SW3);
DigitalOut r_led(LED_RED);
DigitalOut g_led(LED_GREEN);
DigitalOut b_led(LED_BLUE);

struct State {
    int nextState[3];  // array of next states which depend on which button was pressed
};
typedef const struct State STyp;

STyp fsm[9] = {
    {0,0,0},  // 0 - initialisation (title screen)
    {2,1,3},  // 1 - main menu (Set alarm or set new password)
    {2,2,4}, // 2 - set alarm
    {3,3,1}, // 3 - set new password
    {4,4,5}, // 4 - setting calibration
    {7,5,6}, // 5 - alarm activated
    {6,6,1}, // 6 - deactivate without triggering (enter password)
    {7,7,1}, // 7 - alarm triggered (enter password)
    {8,8,1}   // 8 - display time when alarm was triggered
};

int g_current_state;

int distance[10]; /*!< Stores 10 distance readings from SRF02 */
int one_second_distance = 0;
float one_second_avg_distance = 0;
int read_distance_counter = 0;

volatile int g_read_distance_flag; /*!< Flag in read_distance_isr */
volatile int g_button_0_flag; /*!< Flag in button_0_isr */
volatile int g_button_1_flag; /*!< Flag in button_1_isr */
volatile int g_button_c_flag; /*!< Flag in button_c_isr */

char buffer[14]; /*!< Stores any string that is going to be displayed on the LCD */
int length; /*!< Stores the length of any string that is going to be displayed on the LCD  */



void error(); /*!< Hangs flashing on_board LED */
  
void init_serial(); /*!< Set-up the serial port */

void init_K64F(); /*!< Set-up the on-board LEDs and switches */

void init_buttons(); /*!< Set-up the three external buttons */

void read_distance_isr(); /*!< Interrupt that triggers when read_distance ticker fires */

void button_0_isr(); /*!< Interrupt that triggers when button_0 is pressed by the user */

void button_1_isr(); /*!< Interrupt that triggers when button_1 is pressed by the user */

void button_c_isr(); /*!< Interrupt that triggers when button_c is pressed by the user */

void get_distance(); /*!< Gets the average distance in cm from the last 10 readings from the SRF02 */

void state_0_screen();

void state_1_screen();

void state_2_3_6_7_screen();

void state_4_screen();

void state_5_screen();

void state_8_screen();

void screen_selection();

/**

*/

#endif