void LCDchar(char character)
{
int index;
LCDwrite(LCD_D, 0x00);
for (index = 0; index < 5; index++)
{
LCDwrite(LCD_D, ASCII[character - 0x20][index]);
}
LCDwrite(LCD_D, 0x00);
}
void printNumber(uint32_t adc_value) /* Skriver ut värdet från AD-omvandlare */
{
uint32_t tusental = (adc_value / 1000);
uint32_t hundratal = (adc_value % 1000) / 100;
uint32_t tiotal = (adc_value % 100) / 10;
uint32_t ental = (adc_value % 10);
LCDwrite(' ', HIGH);
LCDwrite(tusental + 0x30, HIGH);
LCDwrite(hundratal + 0x30, HIGH);
LCDwrite(tiotal + 0x30, HIGH);
LCDwrite(ental + 0x30, HIGH);
}
int setupLCD(void) /* Ställer in display för första användning */
{
int all_ok = 0; /*antar inget fungerar*/
LCDwrite(0b00001000, LOW); /* Display off */
LCDwrite(0b00000001, LOW); /* Display clear */
delay(3000);
LCDwrite(0b00000110, LOW); /* Entry mode set: move cursor right, no display shift */
LCDwrite(0b00001111 ,LOW); /* Display on, cursor on, blinking on */
all_ok = 1;
return all_ok; /*returnerar 1 om allt är ok.*/
}
void LCDclear(void)
{
int index;
for (index = 0; index < LCD_X * LCD_Y / 8; index++)
{
LCDwrite(LCD_D, 0x00);
}
}
void LCDdrawstring(uint8_t x, uint8_t y, char *c)
{
cursor_x = x;
cursor_y = y;
while (*c)
{
LCDwrite(*c++);
}
}
void LCDwriteLineTwo(char string[])
{
unsigned char i = 0; //create a counter variable
LCDgotoLineTwo(); //Begin on Line two
while(string[i]) //This will continue until the /0 (end of string) character is reached
{
LCDwrite(string[i]); //Write string one element at a time
i++; //Move to the next element
}
}
void LCDdrawstring_P(uint8_t x, uint8_t y, const char *str)
{
cursor_x = x;
cursor_y = y;
while (1)
{
char c = (*str++);
if (! c)
return;
LCDwrite(c);
}
}
void LCDputs(char string[])
{
unsigned char i = 0; //create a counter variable
LCDclear(); //Clear the LCD before writing
while(string[i]) //This will continue until the /0 (end of string) character is reached
{
LCDwrite(string[i]); //Write the string one element at a time
i++; //Move to the next element
if(i==16)
LCDgotoLineTwo(); //Go to line two after element 16
//otherwise the string will be written off screen
}
}
void LCDinit(void)
{
pinMode(PIN_SCE, OUTPUT);
pinMode(PIN_RESET, OUTPUT);
pinMode(PIN_DC, OUTPUT);
pinMode(PIN_SDIN, OUTPUT);
pinMode(PIN_SCLK, OUTPUT);
digitalWrite(PIN_RESET, LOW);
digitalWrite(PIN_RESET, HIGH);
LCDwrite(LCD_C, 0x21 ); // LCD Extended Commands.
LCDwrite(LCD_C, 0xB1 ); // Set LCD Vop (Contrast).
LCDwrite(LCD_C, 0x04 ); // Set Temp coefficent. //0x04
LCDwrite(LCD_C, 0x14 ); // LCD bias mode 1:48. //0x13
LCDwrite(LCD_C, 0x20 ); // LCD Basic Commands
LCDwrite(LCD_C, 0x0C ); // LCD in normal mode.
}
void LCDgotoXY(int x, int y)
{
LCDwrite( 0, 0x80 | x); // Column.
LCDwrite( 0, 0x40 | y); // Row.
}
void putch(char data) {
LCDwrite(data);
}
int LCDInit(void) /* Initializes the display on the LCD shield, returns 1 if everything is ok */
{
int all_ok=0; /* at the beginning assume nothing works */
/* At power on */
ioport_set_pin_dir(LCD_RS, IOPORT_DIR_OUTPUT);
ioport_set_pin_dir(LCD_Enable, IOPORT_DIR_OUTPUT);
ioport_set_port_dir(IOPORT_PIOC, LCD_mask_D4_D7, IOPORT_DIR_OUTPUT);
ioport_set_pin_level(LCD_Enable, LOW);
delay(30000); /* wait > 15 ms */
ioport_set_pin_level(LCD_RS, LOW);
/* Function set (interface is 8 bit long) */
ioport_set_pin_level(LCD_D4, HIGH);
ioport_set_pin_level(LCD_D5, HIGH);
ioport_set_pin_level(LCD_D6, LOW);
ioport_set_pin_level(LCD_D7, LOW);
ioport_set_pin_level(LCD_Enable, HIGH);
delay(1); /* delay 1 us */
ioport_set_pin_level(LCD_Enable, LOW);
delay(4100); /* wait for more than 4,1 ms */
ioport_set_pin_level(LCD_D4, HIGH);
ioport_set_pin_level(LCD_D5, HIGH);
ioport_set_pin_level(LCD_D6, LOW);
ioport_set_pin_level(LCD_D7, LOW);
ioport_set_pin_level(LCD_Enable, HIGH);
delay(1); /* delay 1 us */
ioport_set_pin_level(LCD_Enable, LOW);
delay(100); /* wait 100 us */
ioport_set_pin_level(LCD_D4, HIGH);
ioport_set_pin_level(LCD_D5, HIGH);
ioport_set_pin_level(LCD_D6, LOW);
ioport_set_pin_level(LCD_D7, LOW);
ioport_set_pin_level(LCD_Enable, HIGH);
delay(1); /* delay 1 us */
ioport_set_pin_level(LCD_Enable, LOW);
delay(100); /* wait 100 us */
/* Set display to 4-bit input */
ioport_set_pin_level(LCD_D4, LOW);
ioport_set_pin_level(LCD_D5, HIGH);
ioport_set_pin_level(LCD_D6, LOW);
ioport_set_pin_level(LCD_D7, LOW);
ioport_set_pin_level(LCD_Enable, HIGH);
delay(1);
ioport_set_pin_level(LCD_Enable, LOW);
delay(100);
LCDwrite(0b00101000, LOW); /* Two rows, small font */
LCDwrite(0b00001000, LOW); /* Display off */
LCDwrite(0b00000001, LOW); /* Display clear */
delay(3000);
LCDwrite(0b00000110, LOW); /* Entry mode set: move cursor right, no display shift */
LCDwrite(0b00001111 ,LOW); /* Display on, cursor on, blinking on */
all_ok = 1; /* simple return statement showing that the initialization of the LCD has completed */
return all_ok;
}
void clearDisplay(void) /* Tömmer displayen */
{
LCDwrite(0b00000001, LOW); //Tömmer display
}
void printLetter(uint32_t adc_value) /* Skriver ut vilken knapp som är intryckt */
{
if( ((adc_value - 100) <= UP) && ( (adc_value + 100) >= UP ) ){
LCDwrite('U', HIGH);
LCDwrite('P', HIGH);
}
if(adc_value == RIGHT){
LCDwrite('R', HIGH);
LCDwrite('I', HIGH);
LCDwrite('G', HIGH);
LCDwrite('H', HIGH);
LCDwrite('T', HIGH);
}
if( ((adc_value - 100) <= DOWN) && ( (adc_value + 100) >= DOWN ) ){
LCDwrite('D', HIGH);
LCDwrite('O', HIGH);
LCDwrite('W', HIGH);
LCDwrite('N', HIGH);
}
if( ((adc_value - 100) <= LEFT) && ( (adc_value + 100) >= LEFT ) ){
LCDwrite('L', HIGH);
LCDwrite('E', HIGH);
LCDwrite('F', HIGH);
LCDwrite('T', HIGH);
}
if( ((adc_value - 100) <= SELECT) && ( (adc_value + 100) >= SELECT ) ){
LCDwrite('S', HIGH);
LCDwrite('E', HIGH);
LCDwrite('L', HIGH);
LCDwrite('E', HIGH);
LCDwrite('C', HIGH);
LCDwrite('T', HIGH);
}
if(adc_value > 3000){
LCDwrite('N', HIGH);
LCDwrite('O', HIGH);
LCDwrite(' ', HIGH);
LCDwrite('I', HIGH);
LCDwrite('N', HIGH);
LCDwrite('P', HIGH);
LCDwrite('U', HIGH);
LCDwrite('T', HIGH);
}
}
