int main()
{
init_timer_0();
init_pin_interrupt(PCINT0);
init_adc();
util_init();
// Outputs
DDRB |= (1 << PB1);
DDRB |= (1 << PB3);
DDRB |= (1 << PB4);
PORTB &= ~(1 << PB3); // Set LED low
PORTB &= ~(1 << PB1); // Set Servo pin low
// Inputs
DDRB &= ~(1 << PB0); /* Set PB0 as input */
PORTB |= (1 << PB0); /* Activate PULL UP resistor */
// Toggle LED
PORTB ^= (1 << PB3);
_delay_ms(1000);
PORTB ^= (1 << PB3);
// Enable global interrupts
sei();
while(1)
{
reading = read_analog();
reading_map = map(reading, 0, 255, 410, 1580, 1) / 1000.0 / 0.01;
}
}
int main(void)
{
// open the Character LCD port
char_lcd_dev = alt_up_character_lcd_open_dev ("/dev/LCD");
/* Initialize the character display */
alt_up_character_lcd_init(char_lcd_dev);
// Initially writes the start time of timer to lcd
write_time_to_buffer(top_row, seconds, minutes, hours, am_pm_mode);
hex_write_date(month, day, year);
// Initialize the switches
int * sw_ptr = (int *) SW_BASE;
int sw_values;
int oldvalue = 0x00000000;
// Masks for individual switches
int MASK_17 = 0x00020000;
int MASK_16 = 0x00010000;
int MASK_1 = 0x00000002;
int MASK_0 = 0x00000001;
int is_fast = 0; //use to tell other function if sped up, 0 = slow, 1 = fast
int clk_modify = 0; //if 0, clock isn't being changed, if 1 clock is being changed
int alarm_modify = 0; //if 0 alarm isn't being changed, if 1, alarm is being changed
// Initialize the Timers
init_timer_0(&tenths);
// Tracker to see when the time changes
int old_tenths = 0;
// Initialize the KEY port
init_button_pio();
// continually
while(1) {
// check the state of the context integer updated by various ISR functions
// Act accordingly, which means
// Update the switch_values
sw_values = *(sw_ptr);
//check if sw17 is up and if it is, then speed up the timer
if((sw_values & MASK_17) == 0x00020000 && oldvalue == 0x00000000){
speed_up();
oldvalue = sw_values & MASK_17;
is_fast = 1;
}
//check if sw17 is down and if it is then slow down the timer
else if ((sw_values & MASK_17) == 0x00000000 && oldvalue == 0x00020000) {
slow_down();
oldvalue = sw_values & MASK_17;
is_fast = 0;
}
// Allow user to change the time if SW0 is up
if((sw_values & MASK_0) == 0x00000001){
clk_modify = 1;
}
else{
clk_modify = 0;
}
// Buttons increment the hours, minutes, and seconds, respectively to Key3, Key2, and Key1
if(clk_modify == 1 && alarm_modify == 0 && alarm == 0){
// Handle if a key was pressed
if (edge_capture) {
handle_key_press_time();
}
}
// Allow user to change the alarm if SW1 is up
if((sw_values & MASK_1) == 0x00000002){
alarm_modify = 1;
alt_up_character_lcd_set_cursor_pos(char_lcd_dev, 0, 1);
alt_up_character_lcd_string(char_lcd_dev, bot_row);
}
else{
alarm_modify = 0;
alt_up_character_lcd_set_cursor_pos(char_lcd_dev, 0, 1);
alt_up_character_lcd_string(char_lcd_dev, " ");
}
// Buttons increment the hours, minutes, and seconds, respectively to Key3, Key2, and Key1
if(alarm_modify == 1 && clk_modify == 0 && alarm == 0){
// Handle if a key was pressed
if (edge_capture) {
handle_key_press_alarm_set();
}
}
// Check if alarm should go off yet
if(hours == alarm_hours && minutes == alarm_minutes && seconds == 0){
alarm = 1;
init_timer_1(&half_second);
}
// While alarm is going off
if( alarm == 1 ){
if (half_second % 2) {
// Turn hex on
hex_on();
}
else {
// Turn hex off
hex_off();
}
if( edge_capture) {
handle_key_press_alarm();
}
}
else { stop_timer_1(); }
// Check SW16 for "AM_PM" enable or "24" mode enable
// If the switch is enabled, then we turn on 24 hour mode
// Else we turn on AM / PM Mode
// TODO: Optimize so that it doesn't assign something every loop cycle. Maybe we could slim it down
if((sw_values & MASK_16) == MASK_16 ) {
am_pm_mode = 0;
}
else {
am_pm_mode = 1;
}
// Update the clock
if (tenths != old_tenths) {
// Call the util.h function to update the time
update_time(top_row, &old_tenths, &tenths, &seconds, &minutes, &hours, &day, &month, &year, am_pm_mode, 0);
// Write the updated time to the display
alt_up_character_lcd_set_cursor_pos(char_lcd_dev, 0, 0);
alt_up_character_lcd_string(char_lcd_dev, top_row);
}
}
return 0;
}
