Revision 378
fixed style problems
| lcd.c | ||
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//**************************************Old shit below!***************** |
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/* |
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FontLookup - a lookup table for all characters |
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FontLookup - a lookup table for all characters
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*/ |
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static const unsigned char FontLookup [][5] = |
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{
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{
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{ 0x00, 0x00, 0x00, 0x00, 0x00 }, // sp
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{ 0x00, 0x00, 0x5f, 0x00, 0x00 }, // !
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{ 0x00, 0x07, 0x00, 0x07, 0x00 }, // "
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| ... | ... | |
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{ 0x41, 0x41, 0x36, 0x08, 0x00 }, // }
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{ 0x02, 0x01, 0x01, 0x02, 0x01 }, // ~
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{ 0x55, 0x2A, 0x55, 0x2A, 0x55 }, // del
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}; |
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};
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/** |
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* Initializes the LCD. Must be called before any other |
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* LCD functions. |
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**/ |
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void lcd_init(void) |
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{
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LCDDDR |= (SCE | SDI | SCK); |
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LCDRESETDDR |= (RST|D_C); |
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void lcd_init(void) {
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LCDDDR |= (SCE | SDI | SCK); |
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LCDRESETDDR |= (RST|D_C); |
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LCDPORT &= ~( SCE | SDI | SCK);
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LCDRESETPORT &=~(D_C);
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LCDPORT &= ~( SCE | SDI | SCK);
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LCDRESETPORT &=~(D_C);
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SPCR |= 0x50;//0b01010000; // no SPI int, SPI en, Master, sample on rising edge, fosc/2
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SPSR |= 0x01; // a continuation of the above
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SPCR |= 0x50;//0b01010000; // no SPI int, SPI en, Master, sample on rising edge, fosc/2
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SPSR |= 0x01; // a continuation of the above
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LCDRESETPORT |= RST;
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delay_ms(10);
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LCDRESETPORT &= (~RST);
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delay_ms(100);
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LCDRESETPORT |= RST;
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LCDRESETPORT |= RST;
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delay_ms(10);
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LCDRESETPORT &= (~RST);
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delay_ms(100);
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LCDRESETPORT |= RST;
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lcd_putbyte( 0x21 ); // LCD Extended Commands.
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lcd_putbyte( 0xC8 ); // Set LCD Vop (Contrast).
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lcd_putbyte( 0x06 ); // Set Temp coefficent.
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lcd_putbyte( 0x13 ); // LCD bias mode 1:48.
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lcd_putbyte( 0x20 ); // LCD Standard Commands, Horizontal addressing mode.
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lcd_putbyte( 0x0C ); // LCD in normal mode.
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lcd_putbyte( 0x21 ); // LCD Extended Commands.
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lcd_putbyte( 0xC8 ); // Set LCD Vop (Contrast).
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lcd_putbyte( 0x06 ); // Set Temp coefficent.
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lcd_putbyte( 0x13 ); // LCD bias mode 1:48.
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lcd_putbyte( 0x20 ); // LCD Standard Commands, Horizontal addressing mode.
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lcd_putbyte( 0x0C ); // LCD in normal mode.
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LCDRESETPORT |= D_C; //put it in init instead of main
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LCDRESETPORT |= D_C; //put it in init instead of main
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lcd_clear_screen();
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lcd_clear_screen();
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} |
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/** |
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* @see lcd_init |
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**/ |
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void lcd_clear_screen( void ) {
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int i;
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for (i = 0; i < 504; i++)
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lcd_putbyte(0x0);
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int i;
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for (i = 0; i < 504; i++)
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lcd_putbyte(0x0);
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lcd_gotoxy(0,0);
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lcd_gotoxy(0,0);
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} |
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/** |
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* |
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* @see lcd_init |
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**/ |
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void lcd_putc(char c) |
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{
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int i; |
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void lcd_putc(char c) {
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int i; |
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for (i = 0; i < 5; i++)
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lcd_putbyte(FontLookup[c-32][i]);
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lcd_putbyte(0);
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for (i = 0; i < 5; i++)
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lcd_putbyte(FontLookup[c-32][i]);
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lcd_putbyte(0);
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} |
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/* |
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print an entire string to the lcd |
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print an entire string to the lcd
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*/ |
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void lcd_puts(char *s) |
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{
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char *t = s; |
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while (*t != 0) |
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{
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lcd_putc(*t); |
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t++; |
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} |
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void lcd_puts(char *s) {
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char *t = s; |
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while (*t != 0) {
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lcd_putc(*t); |
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t++; |
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} |
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} |
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/* |
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go to coordinate x, y |
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y: vertically - 1 char |
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x: horizontally - 1 pixel |
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go to coordinate x, y
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y: vertically - 1 char
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x: horizontally - 1 pixel
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multiply x by 6 if want to move 1 entire character |
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multiply x by 6 if want to move 1 entire character
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origin (0,0) is at top left corner of lcd screen |
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origin (0,0) is at top left corner of lcd screen
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*/ |
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/** |
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* |
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* @see lcd_init |
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**/ |
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void lcd_gotoxy(int x, int y) |
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{
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LCDRESETPORT &= ~(D_C); |
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lcd_putbyte(0x40 | (y & 0x07)); |
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lcd_putbyte(0x80 | (x & 0x7f)); |
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LCDRESETPORT |= D_C; |
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void lcd_gotoxy(int x, int y) {
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LCDRESETPORT &= ~(D_C); |
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lcd_putbyte(0x40 | (y & 0x07)); |
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lcd_putbyte(0x80 | (x & 0x7f)); |
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LCDRESETPORT |= D_C; |
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} |
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/* |
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prints an int to the lcd |
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prints an int to the lcd
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code adapted from Chris Efstathiou's code (hendrix@otenet.gr) |
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code adapted from Chris Efstathiou's code (hendrix@otenet.gr)
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*/ |
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/** |
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* |
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* @see lcd_init |
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**/ |
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void lcd_puti(int value ) |
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{
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unsigned char lcd_data[6]={'0','0','0','0','0','0' }, position=sizeof(lcd_data), radix=10;
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void lcd_puti(int value ) {
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unsigned char lcd_data[6]={'0','0','0','0','0','0' }, position=sizeof(lcd_data), radix=10;
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/* convert int to ascii */ |
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if(value<0) { lcd_putc('-'); value=-value; }
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do { position--; *(lcd_data+position)=(value%radix)+'0'; value/=radix; } while(value);
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/* convert int to ascii */ |
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if(value<0) {
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lcd_putc('-');
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value=-value; |
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} |
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do {
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position--; |
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*(lcd_data+position)=(value%radix)+'0'; |
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value/=radix; |
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} while(value); |
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/* start displaying the number */
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for(;position<=(sizeof(lcd_data)-1);position++)
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lcd_putc(lcd_data[position]);
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/* start displaying the number */ |
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for(;position<=(sizeof(lcd_data)-1);position++) |
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lcd_putc(lcd_data[position]);
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return;
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return;
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} |
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/** @} **/ //end defgroup |
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void lcd_putbyte(unsigned char b) |
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{
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SPDR = b; |
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while (!(SPSR & 0x80)); /* Wait until SPI transaction is complete */ |
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void lcd_putbyte(unsigned char b) {
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SPDR = b; |
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while (!(SPSR & 0x80)); /* Wait until SPI transaction is complete */ |
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} |
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