| 0,0 → 1,557 |
|---|
| |
| #define F_CPU 7372800UL |
| #include <avr/io.h> |
| #include <inttypes.h> |
| #include <stdlib.h> |
| #include <avr/pgmspace.h> |
| #include <util/delay.h> |
| |
| #include "font8x6.h" |
| #include "main.h" |
| #include "lcd.h" |
| |
| #define DISP_W 128 |
| #define DISP_H 64 |
| // #define LCD_ORIENTATION 0 // 0 MJ Tasten unten / 4 Original Tasten oben |
| |
| |
| uint8_t lcd_xpos; |
| uint8_t lcd_ypos; |
| //volatile uint8_t display_buffer[1024]; // Display-Puffer, weil nicht zurückgelesen werden kann |
| //volatile uint16_t display_buffer_pointer; // Pointer auf das aktuell übertragene Byte |
| //volatile uint8_t display_buffer_counter; // Hilfszähler zur Selektierung der Page |
| //volatile uint8_t display_page_counter; // aktuelle Page-Nummer |
| //volatile uint8_t display_mode; // Modus für State-Machine |
| |
| |
| void send_byte (uint8_t data) |
| { |
| clr_cs(); |
| SPDR = data; |
| while(!(SPSR & (1<<SPIF))); |
| SPSR = SPSR; |
| set_cs(); |
| } |
| |
| void cls (void) |
| { |
| uint16_t i,j; |
| |
| for (i=0;i<1024;i++) |
| display_buffer[i] = 0x00; |
| |
| for (i=0;i<8;i++) |
| { |
| clr_A0(); |
| send_byte(0xB0+i); //1011xxxx |
| send_byte(0x10); //00010000 |
| // send_byte(0x04); //00000100 gedreht plus 4 Byte |
| // send_byte(0x00); //00000000 |
| send_byte(LCD_ORIENTATION); //00000000 |
| |
| |
| set_A0(); |
| for (j=0;j<128;j++) |
| send_byte(0x00); |
| } |
| |
| lcd_xpos = 0; |
| lcd_ypos = 0; |
| } |
| |
| void lcd_cls (void) |
| { |
| cls(); |
| } |
| |
| void wait_1ms(void) |
| { |
| _delay_ms (1.0); |
| } |
| |
| void wait_ms (uint16_t time) |
| { |
| uint16_t i; |
| |
| for (i=0; i<time; i++) |
| wait_1ms(); |
| } |
| |
| void lcd_init (void) |
| { |
| lcd_xpos = 0; |
| lcd_ypos = 0; |
| |
| |
| DDRB = 0xFF; |
| |
| SPCR = (1<<SPE)|(1<<MSTR)|(1<<CPHA)|(1<<CPOL)|(1<<SPR1); |
| |
| set_cs(); |
| clr_reset(); |
| wait_ms(10); |
| set_reset(); |
| |
| clr_cs(); |
| clr_A0(); |
| |
| send_byte(0x40); |
| |
| if (LCD_ORIENTATION == 0) |
| { |
| send_byte(0xA1); // A1 normal A0 reverse(original) |
| send_byte(0xC0); // C0 normal C8 reverse(original) |
| } |
| else |
| { |
| send_byte(0xA0); // A1 normal A0 reverse(original) |
| send_byte(0xC8); // C0 normal C8 reverse(original) |
| } |
| send_byte(0xA6); |
| send_byte(0xA2); |
| send_byte(0x2F); |
| send_byte(0xF8); |
| send_byte(0x00); |
| send_byte(0x27); |
| send_byte(0x81); |
| send_byte(0x16); |
| send_byte(0xAC); |
| send_byte(0x00); |
| send_byte(0xAF); |
| |
| cls(); |
| |
| } |
| |
| void set_adress (uint16_t adress, uint8_t data) |
| { |
| uint8_t page; |
| uint8_t column; |
| |
| page = adress >> 7; |
| |
| clr_A0(); |
| send_byte(0xB0 + page); |
| |
| // column = (adress & 0x7F) + 4; Wenn gedreht |
| // column = (adress & 0x7F); |
| column = (adress & 0x7F) + LCD_ORIENTATION; |
| |
| send_byte(0x10 + (column >> 4)); |
| send_byte(column & 0x0F); |
| |
| set_A0(); |
| send_byte(data); |
| } |
| |
| void scroll (void) |
| { |
| uint16_t adress; |
| |
| for (adress=0;adress<896;adress++) |
| { |
| display_buffer[adress] = display_buffer[adress+128]; |
| set_adress(adress,display_buffer[adress]); |
| } |
| for (adress=896;adress<1024;adress++) |
| { |
| display_buffer[adress] = 0; |
| set_adress(adress,0); |
| } |
| } |
| |
| // |
| // x,y = character-Pos. ! |
| // |
| // mode: 0=Overwrite, 1 = OR, 2 = XOR, 3 = AND, 4 = Delete |
| void put_char (uint8_t x, uint8_t y, uint8_t c, uint8_t mode) |
| { |
| uint8_t ch; |
| uint8_t i; |
| uint16_t adress; |
| |
| switch(c) |
| { |
| case 'ä': |
| c = 0x84; |
| break; |
| case 'ö': |
| c = 0x94; |
| break; |
| case 'ü': |
| c = 0x81; |
| break; |
| case 'Ä': |
| c = 0x8E; |
| break; |
| case 'Ö': |
| c = 0x99; |
| break; |
| case 'Ü': |
| c = 0x9A; |
| break; |
| case 'ß': |
| c = 0xE1; |
| break; |
| } |
| |
| adress = y*128 + x*6; |
| adress &= 0x3FF; |
| |
| for (i=0;i<6;i++) |
| { |
| ch = pgm_read_byte (&f8x6[0][0] + i + c * 6); |
| |
| switch (mode) |
| { |
| case 0: |
| display_buffer[adress+i] = ch; |
| break; |
| case 1: |
| display_buffer[adress+i] |= ch; |
| break; |
| case 2: |
| display_buffer[adress+i] ^= ch; |
| break; |
| case 3: |
| display_buffer[adress+i] &= ch; |
| break; |
| case 4: |
| display_buffer[adress+i] &= ~ch; |
| break; |
| } |
| |
| set_adress(adress+i,display_buffer[adress+i]); |
| } |
| } |
| |
| void new_line (void) |
| { |
| lcd_ypos++; |
| |
| if (lcd_ypos > 7) |
| { |
| scroll(); |
| lcd_ypos = 7; |
| } |
| } |
| |
| |
| void lcd_printp (const char *text, uint8_t mode) |
| { |
| while (pgm_read_byte(text)) |
| { |
| if (pgm_read_byte(text) > 0x1F) |
| { |
| put_char(lcd_xpos,lcd_ypos,pgm_read_byte(text++),mode); |
| |
| lcd_xpos++; |
| if (lcd_xpos > 20) |
| { |
| lcd_xpos = 0; |
| new_line(); |
| } |
| } |
| else |
| { |
| switch (pgm_read_byte(text)) |
| { |
| case 0x0D: |
| lcd_xpos = 0; |
| break; |
| case 0x0A: |
| new_line(); |
| break; |
| } |
| text++; |
| } |
| } |
| } |
| |
| void lcd_print_atp (uint8_t x, uint8_t y, const char *text, uint8_t mode) |
| { |
| lcd_xpos = x; |
| lcd_ypos = y; |
| lcd_printp (text, mode); |
| } |
| |
| |
| void lcd_print (uint8_t *text, uint8_t mode) |
| { |
| while (*text) |
| { |
| if (*text > 0x1F) |
| { |
| put_char(lcd_xpos,lcd_ypos,*text++,mode); |
| |
| lcd_xpos++; |
| if (lcd_xpos > 20) |
| { |
| lcd_xpos = 0; |
| new_line(); |
| } |
| } |
| else |
| { |
| switch (*text) |
| { |
| case 0x0D: |
| lcd_xpos = 0; |
| break; |
| case 0x0A: |
| new_line(); |
| break; |
| } |
| text++; |
| } |
| } |
| } |
| |
| void lcd_print_at (uint8_t x, uint8_t y, uint8_t *text, uint8_t mode) |
| { |
| lcd_xpos = x; |
| lcd_ypos = y; |
| lcd_print(text, mode); |
| } |
| |
| |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| // + Plot (set one Pixel) |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| // mode: |
| // 0=Clear, 1=Set, 2=XOR |
| void lcd_plot (uint8_t xpos, uint8_t ypos, uint8_t mode) |
| { |
| uint16_t adress; |
| uint8_t mask; |
| |
| if ((xpos < 128) && (ypos < 64)) |
| { |
| adress = (ypos/8) * 128 + xpos; // adress = 0/8 * 128 + 0 = 0 |
| mask = 1<<(ypos & 0x07); // mask = 1<<0 = 1 |
| |
| adress &= 0x3FF; |
| |
| switch (mode) |
| { |
| case 0: |
| display_buffer[adress] &=~mask; |
| break; |
| case 1: |
| display_buffer[adress] |= mask; |
| break; |
| case 2: |
| display_buffer[adress] ^= mask; |
| break; |
| } |
| |
| set_adress(adress,display_buffer[adress]); |
| } |
| } |
| |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| // + Line (draws a line from x1,y1 to x2,y2 |
| // + Based on Bresenham line-Algorithm |
| // + found in the internet, modified by thkais 2007 |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| |
| void lcd_line(unsigned char x1, unsigned char y1, unsigned char x2, unsigned char y2, uint8_t mode) |
| |
| { |
| int x,y,count,xs,ys,xm,ym; |
| |
| x=(int)x1; |
| y=(int)y1; |
| xs=(int)x2 - (int)x1; |
| ys=(int)y2 - (int)y1; |
| if(xs < 0) |
| xm= -1; |
| else |
| if(xs > 0) |
| xm= 1; |
| else |
| xm= 0; |
| if(ys < 0) |
| ym= -1; |
| else |
| if(ys > 0) |
| ym= 1; |
| else |
| ym= 0; |
| if(xs < 0) |
| xs= -xs; |
| if(ys < 0) |
| ys= -ys; |
| |
| lcd_plot((unsigned char)x, (unsigned char)y, mode); |
| |
| if(xs > ys) // Flat Line <45 degrees |
| { |
| count= -(xs / 2); |
| while(x != x2) |
| { |
| count= count + ys; |
| x= x + xm; |
| if(count > 0) |
| { |
| y= y + ym; |
| count= count - xs; |
| } |
| lcd_plot((unsigned char)x, (unsigned char)y, mode); |
| } |
| } |
| else // Line >=45 degrees |
| { |
| count=- (ys / 2); |
| while(y != y2) |
| { |
| count= count + xs; |
| y= y + ym; |
| if(count > 0) |
| { |
| x= x + xm; |
| count= count - ys; |
| } |
| lcd_plot((unsigned char)x, (unsigned char)y, mode); |
| } |
| } |
| } |
| |
| |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| // + Filled rectangle |
| // + x1, y1 = upper left corner |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| |
| void lcd_frect (uint8_t x1, uint8_t y1, uint8_t widthx, uint8_t widthy, uint8_t mode) |
| { |
| uint16_t x2, y2; |
| uint16_t i; |
| |
| if (x1 >= DISP_W) |
| x1 = DISP_W - 1; |
| if (y1 >= DISP_H) |
| y1 = DISP_H - 1; |
| x2 = x1 + widthx; |
| y2 = y1 + widthy; |
| |
| if (x2 > DISP_W) |
| x2 = DISP_W; |
| if (y2 > DISP_H) |
| y2 = DISP_H; |
| |
| for (i=y1;i<=y2;i++) |
| { |
| lcd_line(x1,i,x2,i,mode); |
| } |
| |
| } |
| |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| // + outline of rectangle |
| // + x1, y1 = upper left corner |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| |
| void lcd_rect (uint8_t x1, uint8_t y1, uint8_t widthx, uint8_t widthy, uint8_t mode) |
| { |
| uint16_t x2, y2; |
| |
| if (x1 >= DISP_W) |
| x1 = DISP_W - 1; |
| if (y1 >= DISP_H) |
| y1 = DISP_H - 1; |
| x2 = x1 + widthx; |
| y2 = y1 + widthy; |
| |
| if (x2 > DISP_W) |
| x2 = DISP_W; |
| if (y2 > DISP_H) |
| y2 = DISP_H; |
| |
| lcd_line (x1, y1, x2, y1, mode); |
| lcd_line (x2, y1, x2, y2, mode); |
| lcd_line (x2, y2, x1, y2, mode); |
| lcd_line (x1, y2, x1, y1, mode); |
| } |
| |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| // + outline of a circle |
| // + Based on Bresenham-algorithm found in wikipedia |
| // + modified by thkais (2007) |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| |
| |
| void draw_circle(int16_t x0, int16_t y0, int16_t radius, uint8_t mode) |
| { |
| int16_t f = 1 - radius; |
| int16_t ddF_x = 0; |
| int16_t ddF_y = -2 * radius; |
| int16_t x = 0; |
| int16_t y = radius; |
| |
| lcd_plot(x0, y0 + radius, mode); |
| lcd_plot(x0, y0 - radius, mode); |
| lcd_plot(x0 + radius, y0, mode); |
| lcd_plot(x0 - radius, y0, mode); |
| |
| while(x < y) |
| { |
| if(f >= 0) |
| { |
| y --; |
| ddF_y += 2; |
| f += ddF_y; |
| } |
| x ++; |
| ddF_x += 2; |
| f += ddF_x + 1; |
| |
| lcd_plot(x0 + x, y0 + y, mode); |
| lcd_plot(x0 - x, y0 + y, mode); |
| |
| lcd_plot(x0 + x, y0 - y, mode); |
| lcd_plot(x0 - x, y0 - y, mode); |
| |
| lcd_plot(x0 + y, y0 + x, mode); |
| lcd_plot(x0 - y, y0 + x, mode); |
| |
| lcd_plot(x0 + y, y0 - x, mode); |
| lcd_plot(x0 - y, y0 - x, mode); |
| } |
| } |
| |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| // + filled Circle |
| // + modified circle-algorithm thkais (2007) |
| // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| |
| void draw_fcircle(int16_t x0, int16_t y0, int16_t radius) |
| { |
| int16_t f = 1 - radius; |
| int16_t ddF_x = 0; |
| int16_t ddF_y = -2 * radius; |
| int16_t x = 0; |
| int16_t y = radius; |
| |
| lcd_line(x0, y0 + radius,x0, y0 - radius,1); |
| |
| lcd_line(x0 + radius, y0,x0 - radius, y0,1); |
| |
| while(x < y) |
| { |
| if(f >= 0) |
| { |
| y--; |
| ddF_y += 2; |
| f += ddF_y; |
| } |
| x++; |
| ddF_x += 2; |
| f += ddF_x + 1; |
| |
| lcd_line(x0 + x, y0 + y,x0 - x, y0 + y,1); |
| lcd_line(x0 + x, y0 - y,x0 - x, y0 - y,1); |
| lcd_line(x0 + y, y0 + x,x0 - y, y0 + x,1); |
| lcd_line(x0 + y, y0 - x,x0 - y, y0 - x,1); |
| } |
| } |