void die (const char *string)
{
lcd_send_command (CLR_DISP); /* LCD set first row */
lcd_send_command (DD_RAM_ADDR); /* LCD set first row */
lcd_send_string (string);
for (;;) ;
}
void display_Selection(long selection){
lcd_check_busy_flag();
lcd_send_command(LCD_CLEAR);
lcd_puts(" Exposure Time: ");
lcd_check_busy_flag();
lcd_send_command(LCD_SET_CURSOR_POS | LCD_SECOND_LINE );
char * zero = "0";
uint8_t mins = selection / 60;
char minsStr[5];
itoa(mins,minsStr,10);
lcd_check_busy_flag();
lcd_puts(" ");
if(mins <= 9){
lcd_check_busy_flag();
lcd_puts(zero);
}
lcd_check_busy_flag();
lcd_puts(minsStr);
lcd_check_busy_flag();
lcd_puts(":");
uint8_t secs = selection % 60;
char secsStr[5];
itoa(secs,secsStr,10);
if(secs <= 9){
lcd_check_busy_flag();
lcd_puts(zero);
}
lcd_check_busy_flag();
lcd_puts(secsStr);
}
/**
* @brief Initialize the LCD display
* enables LCD using 2-line display and 8-bit interface
* cursor auto-right-move without showing
Clear the LCD screen
* @param None
* @retval None
*/
void lcd_display_init(void)
{
lcd_gpio_init();
//function set 2 lines, 8-bit interface
lcd_send_command(0x38);
//enable display(0x0c) and cursor display(0x0e)
lcd_send_command(0x0c);
//clear
lcd_send_command(0x01);
}
int startLCD_Show_Credits( void ){
set_lcd_pins_direction();
lcd_init();
lcd_puts( program_author );
_delay_ms(1000);
lcd_check_busy_flag();
lcd_send_command( LCD_CLEAR );
lcd_puts( machine_name );
lcd_check_busy_flag();
lcd_send_command( LCD_SET_CURSOR_POS | LCD_SECOND_LINE );
lcd_puts( program_version );
//_delay_ms( 5000 );
}
/**
* @brief Initializes the lcd display controller.
* @details Follows the initialization flowchart in the JM162A datasheet.
*/
void lcd_init() {
_delay_ms(30);
lcd_send_command(0b00111000); // 8 bit, 2 lines
_delay_us(39);
lcd_send_command(0b00001000); // display off
_delay_us(39);
lcd_clear();
_delay_ms(1.53);
lcd_send_command(0b00000110); // left-to-right, no shift
lcd_send_command(0b00001100); // display on
}
/**
* @brief Prints two lines of text on the display.
*
* @param text1 The first line of text.
* @param text2 The second line of text.
*/
void lcd_print(char text1[16], char text2[16]) {
lcd_clear();
for(int i=0; text1[i] != '\0' && i < 16; i++)
lcd_send_symbol(text1[i]);
lcd_send_command(0b11000000); // line 2, DDRAM address 64
for(int i=0; text2[i] != '\0' && i < 16; i++)
lcd_send_symbol(text2[i]);
}
int main(void){
//startLCD_Show_Credits();
//lcd_check_busy_flag();
//lcd_send_command( LCD_CLEAR );
//You can multiplex these pins by enabling and disabling the LCD display.
//lcd_puts( "Lx = 15uH " );
//lcd_check_busy_flag();
//lcd_send_command( LCD_SET_CURSOR_POS | LCD_SECOND_LINE );
//lcd_puts( "Cx = 150uF" );
//lcd_check_busy_flag();
//_delay_ms(2000);
//lcd_send_command( LCD_CLEAR );
//lcd_puts("Hello Jenn!");
uart_init();
stdout = &uart_tx;
stdin = &uart_rx;
init_ADC();
//Set Pin Directions
//Lights Pin as output
LIGHTS_SIGNAL_DIR |= (1 << LIGHTS_SIGNAL);
//Start Button Pin as input
START_BUTTON_DIR &= ~(1 << START_BUTTON);
//Stop Button Pin as Input
STOP_BUTTON_DIR &= ~(1 << STOP_BUTTON);
//Buzzer Pin as Output
BUZZER_DIR |= (1 << BUZZER);
//Trip Switch Pin as Input
TRIP_SWITCH_DIR &= ~(1 << TRIP_SWITCH_PIN);
//LCD Led Pin as output
LCD_LED_DIR |= (1 << LCD_LED_PIN);
LCD_LED_PORT |= (1 << LCD_LED_PIN); //Turn it on
static long reading;
static bool btnStop = false;
static bool tripSwitch = false;
startLCD_Show_Credits();
displayBlink(3);
while (1){
printf("Raw Reading: %d\t",read_ADC(0,&reading));
long mapped_reading = mapRange(0,1023,0,1800,reading);
printf("Mapped Reading: %d\t",mapped_reading);
display_Selection(mapped_reading);
if(START_BUTTON_PIN & (1 << START_BUTTON) && mapped_reading > 0){
lcd_check_busy_flag();
lcd_send_command(LCD_CLEAR);
lcd_puts(" STARTING ");
displayBlink(2);
long count = 0;
_delay_ms(1000);
//Turn on lights
LIGHTS_SIGNAL_PORT |= (1 << LIGHTS_SIGNAL);
bool lightsOn = true;
for(count = mapped_reading;count >= 0;count--){
//Check for stop button
if(STOP_BUTTON_PIN & (1 << STOP_BUTTON)){
lcd_check_busy_flag();
lcd_send_command(LCD_CLEAR);
lcd_puts(" STOPPING ");
btnStop = true;
break;
}
//Pause if trip switch is high
if(!(TRIP_SWITCH_PIN & (1 << TRIP_SWITCH))){
if(!lightsOn){
LIGHTS_SIGNAL_PORT |= (1 << LIGHTS_SIGNAL);
}
//If the the switch is still closed
printf("UV Lights on for: %d more secs...\n",count);
lcd_check_busy_flag();
lcd_send_command(LCD_CLEAR);
lcd_puts(" Exposing ");
lcd_check_busy_flag();
lcd_send_command(LCD_SET_CURSOR_POS | LCD_SECOND_LINE);
char * zero = "0";
uint8_t mins = count / 60;
uint8_t secs = count % 60;
char minsStr[5];
char secsStr[5];
itoa(mins,minsStr,10);
itoa(secs,secsStr,10);
lcd_check_busy_flag();
lcd_puts(" ");
if(mins <= 9){
lcd_check_busy_flag();
lcd_puts(zero);
}
lcd_check_busy_flag();
lcd_puts(minsStr);
lcd_check_busy_flag();
lcd_puts(":");
if(secs <= 9){
lcd_check_busy_flag();
lcd_puts(zero);
}
lcd_check_busy_flag();
lcd_puts(secsStr);
_delay_ms(1000);
}
else{
lightsOn = false;
LIGHTS_SIGNAL_PORT &= ~(1 << LIGHTS_SIGNAL);
//Tell user the lid is open
printf("LID OPEN, CLOSE IT TO CONTINUE\n");
lcd_check_busy_flag();
lcd_send_command(LCD_CLEAR);
lcd_puts(" LID OPEN ");
lcd_check_busy_flag();
lcd_send_command(LCD_SET_CURSOR_POS | LCD_SECOND_LINE);
lcd_puts(" PLEASE CLOSE IT ");
//Increment Count to make up for this one
count++;
}
}
//Turn off lights
LIGHTS_SIGNAL_PORT &= ~(1 << LIGHTS_SIGNAL);
if(btnStop != true){
lcd_check_busy_flag();
lcd_send_command(LCD_CLEAR);
lcd_puts(" FINISHED ");
alarmSound(2);
}
else{
buzzerSound(13);
btnStop = false; //reset the stop flag
}
displayBlink(2);
}
}
return 0;
}
/**
* @brief Clears the display.
*/
void lcd_clear() {
lcd_send_command(1);
}
void debug (const char *string)
{
lcd_send_command (DD_RAM_ADDR); /* LCD set first row */
lcd_send_string (string);
}
/**
* @brief send a clear command to LCD display
* @param None
* @retval None
*/
void lcd_clear_command(void)
{
lcd_send_command(0x01);
}
int main (void)
{
unsigned char menu = MENU_SHOW_USER_TIME;
static unsigned char button_state = 0, counter_button = 0;
unsigned cpsr_temp;
double voltage_temp,
current_temp,
wattage_hour_temp,
wattage_temp;
unsigned short int nr_adc_reads_temp;
/* Initialize variables */
voltage = 0;
current = 0;
wattage = 0;
wattage_hour_user = 0;
wattage_hour_system = 0;
tick_update_lcd = 0;
nr_adc_reads = 0;
user_time_wattage = 0;
/* Initialize the system */
system_init ();
/* Initialize the LCD */
lcd_init ();
/* Initialize the ADC */
adc_init ();
/* Initialize the buttons */
buttons_init ();
/* Initialize the Timer0 */
timer1_init ();
enableIRQ ();
for (;;)
{
switch (menu)
{
case MENU_SHOW_USER_TIME:
if (button_is_set(BUTTON_01) && !button_state)
{
menu = MENU_SHOW_USER_POWER;
button_state = 1;
counter_button = 0;
}
if (!button_is_set(BUTTON_01))
button_state = 0;
if (tick_update_lcd >= 50) /* Execute on every 50 * 5ms */
{
/* Disable the IRQ for avoid change on global variables used on
* Timer1 IRQ handler code */
cpsr_temp = disableIRQ ();
wattage = 0;
voltage = 0;
current = 0;
nr_adc_reads = 0;
wattage_temp = user_time_wattage;
tick_update_lcd = 0;
/* Restore the IRQ */
restoreIRQ (cpsr_temp);
lcd_send_command (DD_RAM_ADDR); /* LCD set first row */
lcd_send_char (' ');
lcd_send_char ('A');
lcd_send_char ('v');
lcd_send_char ('a');
lcd_send_char ('i');
lcd_send_char ('l');
lcd_send_char ('a');
lcd_send_char ('b');
lcd_send_char ('l');
lcd_send_char ('e');
lcd_send_char (' ');
lcd_send_char ('t');
lcd_send_char ('i');
lcd_send_char ('m');
lcd_send_char ('e');
lcd_send_char (' ');
lcd_send_command (DD_RAM_ADDR2); /* LCD set 2nd row */
/* (watts per hour * 60) ==> watts per minute.
* Load uses 30 watts so: ((watts per hour * 60) / 30) <=>
* (watts per hour * 2).
*/
double temp1, temp2;
temp1 = ((long) (wattage_temp * 2));
temp2 = ((double) (((double) (wattage_temp * 2)) - (double) temp1));
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_int (temp1, 3);
lcd_send_char ('m');
lcd_send_char (' ');
lcd_send_int (((long) (temp2 * 60)), 2);
lcd_send_char ('s');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
/* Verify if we need to reset the "usage time available" */
if (button_is_set(BUTTON_02))
{
if (++counter_button >= 4)
{
while (button_is_set(BUTTON_02))
{
lcd_send_command (DD_RAM_ADDR);
lcd_send_char (' ');
lcd_send_char ('A');
lcd_send_char ('v');
lcd_send_char ('a');
lcd_send_char ('i');
lcd_send_char ('l');
lcd_send_char ('a');
lcd_send_char ('b');
lcd_send_char ('l');
lcd_send_char ('e');
lcd_send_char (' ');
lcd_send_char ('t');
lcd_send_char ('i');
lcd_send_char ('m');
lcd_send_char ('e');
lcd_send_char (' ');
lcd_send_command (DD_RAM_ADDR2);
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char ('r');
lcd_send_char ('e');
lcd_send_char ('s');
lcd_send_char ('e');
lcd_send_char ('t');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
}
/* Disable the IRQ for avoid change on global variables used on
* Timer1 IRQ handler code */
cpsr_temp = disableIRQ ();
user_time_wattage = 0;
tick_update_lcd = 0;
/* Restore the IRQ */
restoreIRQ (cpsr_temp);
counter_button = 0;
}
}
}
break;
case MENU_SHOW_USER_POWER:
if (button_is_set(BUTTON_01) && !button_state)
{
menu = MENU_SHOW_SYSTEM_POWER;
button_state = 1;
counter_button = 0;
}
if (!button_is_set(BUTTON_01))
button_state = 0;
if (tick_update_lcd >= 50) /* Execute on every 50 * 5ms */
{
/* Disable the IRQ for avoid change on global variables used on
* Timer1 IRQ handler code */
cpsr_temp = disableIRQ ();
wattage_temp = wattage;
wattage = 0;
wattage_hour_temp = wattage_hour_user;
voltage = 0;
current = 0;
nr_adc_reads_temp = nr_adc_reads;
nr_adc_reads = 0;
tick_update_lcd = 0;
/* Restore the IRQ */
restoreIRQ (cpsr_temp);
lcd_send_command (DD_RAM_ADDR); /* LCD set first row */
lcd_send_char (' ');
lcd_send_float ((wattage_temp/nr_adc_reads_temp), 3, 1);
lcd_send_char (' ');
lcd_send_char ('W');
lcd_send_char ('a');
lcd_send_char ('t');
lcd_send_char ('t');
lcd_send_char ('s');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_command (DD_RAM_ADDR2); /* LCD set 2nd row */
lcd_send_char (' ');
lcd_send_float (wattage_hour_temp, 3, 3);
lcd_send_char (' ');
lcd_send_char ('W');
lcd_send_char ('/');
lcd_send_char ('h');
lcd_send_char ('o');
lcd_send_char ('u');
lcd_send_char ('r');
lcd_send_char (' ');
/* Verify if we need to reset the wattage_hour_user */
if (button_is_set(BUTTON_02))
{
if (++counter_button >= 8)
{
while (button_is_set(BUTTON_02))
{
lcd_send_command (DD_RAM_ADDR);
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char ('W');
lcd_send_char ('a');
lcd_send_char ('t');
lcd_send_char ('t');
lcd_send_char ('s');
lcd_send_char (' ');
lcd_send_char ('h');
lcd_send_char ('o');
lcd_send_char ('u');
lcd_send_char ('r');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_command (DD_RAM_ADDR2);
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char ('r');
lcd_send_char ('e');
lcd_send_char ('s');
lcd_send_char ('e');
lcd_send_char ('t');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
}
/* Disable the IRQ for avoid change on global variables used on
* Timer1 IRQ handler code */
cpsr_temp = disableIRQ ();
wattage_hour_user = 0;
tick_update_lcd = 0;
/* Restore the IRQ */
restoreIRQ (cpsr_temp);
counter_button = 0;
}
}
}
break;
case MENU_SHOW_SYSTEM_POWER:
if (button_is_set(BUTTON_01) && !button_state)
{
menu = MENU_SHOW_USER_TIME;
button_state = 1;
counter_button = 0;
}
if (!button_is_set(BUTTON_01))
button_state = 0;
if (tick_update_lcd >= 50) /* Execute on every 50 * 5ms */
{
/* Disable the IRQ for avoid change on global variables used on
* Timer1 IRQ handler code */
cpsr_temp = disableIRQ ();
wattage_temp = wattage;
wattage = 0;
wattage_hour_temp = wattage_hour_system;
voltage = 0;
current = 0;
nr_adc_reads_temp = nr_adc_reads;
nr_adc_reads = 0;
tick_update_lcd = 0;
/* Restore the IRQ */
restoreIRQ (cpsr_temp);
lcd_send_command (DD_RAM_ADDR); /* LCD set first row */
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char ('T');
lcd_send_char ('o');
lcd_send_char ('t');
lcd_send_char ('a');
lcd_send_char ('l');
lcd_send_char (' ');
lcd_send_char ('p');
lcd_send_char ('o');
lcd_send_char ('w');
lcd_send_char ('e');
lcd_send_char ('r');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_command (DD_RAM_ADDR2); /* LCD set 2nd row */
lcd_send_char (' ');
lcd_send_float (wattage_hour_temp, 4, 3);
lcd_send_char (' ');
lcd_send_char ('W');
lcd_send_char ('/');
lcd_send_char ('h');
lcd_send_char ('o');
lcd_send_char ('u');
lcd_send_char ('r');
/* Verify if we need to go on the advanced menus */
if (button_is_set(BUTTON_02))
{
if (++counter_button >= 20)
{
while (button_is_set(BUTTON_02))
{
lcd_send_command (DD_RAM_ADDR);
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char ('G');
lcd_send_char ('o');
lcd_send_char ('i');
lcd_send_char ('n');
lcd_send_char ('g');
lcd_send_char (' ');
lcd_send_char ('t');
lcd_send_char ('o');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_command (DD_RAM_ADDR2); /* LCD set 2nd row */
lcd_send_char (' ');
lcd_send_char ('a');
lcd_send_char ('d');
lcd_send_char ('v');
lcd_send_char ('a');
lcd_send_char ('n');
lcd_send_char ('c');
lcd_send_char ('e');
lcd_send_char ('d');
lcd_send_char (' ');
lcd_send_char ('m');
lcd_send_char ('e');
lcd_send_char ('n');
lcd_send_char ('u');
lcd_send_char ('s');
lcd_send_char (' ');
}
menu = MENU_SHOW_VOLTAGE_CURRENT;
counter_button = 0;
}
}
}
break;
case MENU_SHOW_VOLTAGE_CURRENT:
if (button_is_set(BUTTON_01) && !button_state)
{
menu = MENU_SHOW_ADC_READINGS;
button_state = 1;
counter_button = 0;
}
if (!button_is_set(BUTTON_01))
button_state = 0;
if (tick_update_lcd >= 50) /* Execute on every 50 * 5ms */
{
/* Disable the IRQ for avoid change on global variables used on
* Timer1 IRQ handler code */
cpsr_temp = disableIRQ ();
voltage_temp = voltage;
voltage = 0;
current_temp = current;
current = 0;
nr_adc_reads_temp = nr_adc_reads;
nr_adc_reads = 0;
tick_update_lcd = 0;
/* Restore the IRQ */
restoreIRQ (cpsr_temp);
lcd_send_command (DD_RAM_ADDR); /* LCD set first row */
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_float ((((voltage_temp/nr_adc_reads_temp) * \
K_VOLTAGE) + M_VOLTAGE), 2,1);
lcd_send_char (' ');
lcd_send_char ('V');
lcd_send_char ('o');
lcd_send_char ('l');
lcd_send_char ('t');
lcd_send_char ('s');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_command (DD_RAM_ADDR2); /* LCD set 2nd row */
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
/* First 3 values from ADC_current should not be used since they are
* very non linear.
*/
current_temp = (current_temp/nr_adc_reads_temp);
if (current_temp < 3)
{
lcd_send_float (0, 2, 1);
}
if (current_temp >= 3 && current_temp < 60)
{
current_temp = \
((-0.000004 * current_temp * current_temp * current_temp) + \
(0.0005 * current_temp * current_temp) - \
(0.0028 * current_temp) + 0.356);
lcd_send_float (current_temp, 2, 1);
}
if (current_temp >= 60)
{
lcd_send_float (((current_temp * K_CURRENT) + \
M_CURRENT),2,1);
}
lcd_send_char (' ');
lcd_send_char ('A');
lcd_send_char ('m');
lcd_send_char ('p');
lcd_send_char ('s');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
/* Verify if we need to go on the normal menus */
if (button_is_set(BUTTON_02))
{
if (++counter_button >= 20)
{
while (button_is_set(BUTTON_02))
{
lcd_send_command (DD_RAM_ADDR);
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char ('L');
lcd_send_char ('e');
lcd_send_char ('a');
lcd_send_char ('v');
lcd_send_char ('i');
lcd_send_char ('n');
lcd_send_char ('g');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_char (' ');
lcd_send_command (DD_RAM_ADDR2);
lcd_send_char (' ');
lcd_send_char ('a');
lcd_send_char ('d');
lcd_send_char ('v');
lcd_send_char ('a');
lcd_send_char ('n');
lcd_send_char ('c');
lcd_send_char ('e');
lcd_send_char ('d');
lcd_send_char (' ');
lcd_send_char ('m');
lcd_send_char ('e');
lcd_send_char ('n');
lcd_send_char ('u');
lcd_send_char ('s');
lcd_send_char (' ');
}
menu = MENU_SHOW_USER_TIME;
counter_button = 0;
}
}
}
break;
case MENU_SHOW_ADC_READINGS:
disableIRQ ();
lcd_send_command (CLR_DISP);
while (1)
{
lcd_send_command (DD_RAM_ADDR); /* LCD set first row */
lcd_send_char ('A');
lcd_send_char ('D');
lcd_send_char ('C');
lcd_send_char (' ');
lcd_send_char ('v');
lcd_send_char ('o');
lcd_send_char ('l');
lcd_send_char ('t');
lcd_send_char ('a');
lcd_send_char ('g');
lcd_send_char ('e');
lcd_send_char (':');
int i;
for (i = 0; i < 5000; i++)
voltage += adc_read (6);
lcd_send_int (voltage/5000, 4);
voltage = 0;
lcd_send_command (DD_RAM_ADDR2); /* LCD set 2nd row */
lcd_send_char ('A');
lcd_send_char ('D');
lcd_send_char ('C');
lcd_send_char (' ');
lcd_send_char ('c');
lcd_send_char ('u');
lcd_send_char ('r');
lcd_send_char ('r');
lcd_send_char ('e');
lcd_send_char ('n');
lcd_send_char ('t');
lcd_send_char (':');
for (i = 0; i < 5000; i++)
current += adc_read (7);
lcd_send_int (current/5000, 4);
current = 0;
if (button_is_set(BUTTON_01) && !button_state)
{
menu = MENU_SHOW_VOLTAGE_CURRENT;
button_state = 1;
counter_button = 0;
voltage = 0;
current = 0;
restoreIRQ (cpsr_temp);
break;
break;
}
if (!button_is_set(BUTTON_01))
button_state = 0;
}
break;
default:
break;
}
/* Go to idle mode to save power. System leaves idle mode on interrupt, so,
* at each 5ms interrupt from Timer 1.
*/
/* UNCOMENT IN THE END - NOT POSSIBLE TO DEBUG WITH IDLE MODE */
system_go_idle ();
}
}
