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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 111 | mikeljo | 1 | |
| 2 | #define F_CPU 7372800UL |
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| 3 | #include <avr/io.h> |
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| 4 | #include <inttypes.h> |
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| 5 | #include <stdlib.h> |
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| 6 | #include <avr/pgmspace.h> |
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| 7 | #include <util/delay.h> |
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| 8 | |||
| 9 | #include "font8x6.h" |
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| 10 | #include "main.h" |
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| 11 | #include "lcd.h" |
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| 12 | |||
| 13 | #define DISP_W 128 |
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| 14 | #define DISP_H 64 |
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| 15 | // #define LCD_ORIENTATION 0 // 0 MJ Tasten unten / 4 Original Tasten oben |
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| 16 | |||
| 17 | |||
| 18 | uint8_t lcd_xpos; |
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| 19 | uint8_t lcd_ypos; |
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| 20 | //volatile uint8_t display_buffer[1024]; // Display-Puffer, weil nicht zurückgelesen werden kann |
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| 21 | //volatile uint16_t display_buffer_pointer; // Pointer auf das aktuell übertragene Byte |
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| 22 | //volatile uint8_t display_buffer_counter; // Hilfszähler zur Selektierung der Page |
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| 23 | //volatile uint8_t display_page_counter; // aktuelle Page-Nummer |
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| 24 | //volatile uint8_t display_mode; // Modus für State-Machine |
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| 25 | |||
| 26 | |||
| 27 | void send_byte (uint8_t data) |
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| 28 | { |
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| 29 | clr_cs(); |
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| 30 | SPDR = data; |
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| 31 | while(!(SPSR & (1<<SPIF))); |
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| 32 | SPSR = SPSR; |
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| 33 | set_cs(); |
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| 34 | } |
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| 35 | |||
| 36 | void cls (void) |
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| 37 | { |
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| 38 | uint16_t i,j; |
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| 39 | |||
| 40 | for (i=0;i<1024;i++) |
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| 41 | display_buffer[i] = 0x00; |
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| 42 | |||
| 43 | for (i=0;i<8;i++) |
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| 44 | { |
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| 45 | clr_A0(); |
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| 46 | send_byte(0xB0+i); //1011xxxx |
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| 47 | send_byte(0x10); //00010000 |
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| 48 | // send_byte(0x04); //00000100 gedreht plus 4 Byte |
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| 49 | // send_byte(0x00); //00000000 |
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| 50 | send_byte(LCD_ORIENTATION); //00000000 |
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| 51 | |||
| 52 | |||
| 53 | set_A0(); |
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| 54 | for (j=0;j<128;j++) |
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| 55 | send_byte(0x00); |
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| 56 | } |
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| 57 | |||
| 58 | lcd_xpos = 0; |
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| 59 | lcd_ypos = 0; |
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| 60 | } |
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| 61 | |||
| 62 | void lcd_cls (void) |
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| 63 | { |
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| 64 | cls(); |
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| 65 | } |
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| 66 | |||
| 67 | void wait_1ms(void) |
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| 68 | { |
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| 69 | _delay_ms (1.0); |
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| 70 | } |
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| 71 | |||
| 72 | void wait_ms (uint16_t time) |
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| 73 | { |
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| 74 | uint16_t i; |
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| 75 | |||
| 76 | for (i=0; i<time; i++) |
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| 77 | wait_1ms(); |
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| 78 | } |
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| 79 | |||
| 80 | void lcd_init (void) |
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| 81 | { |
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| 82 | lcd_xpos = 0; |
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| 83 | lcd_ypos = 0; |
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| 84 | |||
| 85 | |||
| 86 | DDRB = 0xFF; |
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| 87 | |||
| 88 | SPCR = (1<<SPE)|(1<<MSTR)|(1<<CPHA)|(1<<CPOL)|(1<<SPR1); |
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| 89 | |||
| 90 | set_cs(); |
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| 91 | clr_reset(); |
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| 92 | wait_ms(10); |
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| 93 | set_reset(); |
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| 94 | |||
| 95 | clr_cs(); |
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| 96 | clr_A0(); |
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| 97 | |||
| 98 | send_byte(0x40); |
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| 99 | |||
| 100 | if (LCD_ORIENTATION == 0) |
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| 101 | { |
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| 102 | send_byte(0xA1); // A1 normal A0 reverse(original) |
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| 103 | send_byte(0xC0); // C0 normal C8 reverse(original) |
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| 104 | } |
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| 105 | else |
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| 106 | { |
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| 107 | send_byte(0xA0); // A1 normal A0 reverse(original) |
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| 108 | send_byte(0xC8); // C0 normal C8 reverse(original) |
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| 109 | } |
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| 110 | send_byte(0xA6); |
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| 111 | send_byte(0xA2); |
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| 112 | send_byte(0x2F); |
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| 113 | send_byte(0xF8); |
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| 114 | send_byte(0x00); |
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| 115 | send_byte(0x27); |
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| 116 | send_byte(0x81); |
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| 117 | send_byte(0x16); |
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| 118 | send_byte(0xAC); |
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| 119 | send_byte(0x00); |
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| 120 | send_byte(0xAF); |
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| 121 | |||
| 122 | cls(); |
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| 123 | |||
| 124 | } |
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| 125 | |||
| 126 | void set_adress (uint16_t adress, uint8_t data) |
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| 127 | { |
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| 128 | uint8_t page; |
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| 129 | uint8_t column; |
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| 130 | |||
| 131 | page = adress >> 7; |
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| 132 | |||
| 133 | clr_A0(); |
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| 134 | send_byte(0xB0 + page); |
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| 135 | |||
| 136 | // column = (adress & 0x7F) + 4; Wenn gedreht |
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| 137 | // column = (adress & 0x7F); |
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| 138 | column = (adress & 0x7F) + LCD_ORIENTATION; |
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| 139 | |||
| 140 | send_byte(0x10 + (column >> 4)); |
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| 141 | send_byte(column & 0x0F); |
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| 142 | |||
| 143 | set_A0(); |
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| 144 | send_byte(data); |
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| 145 | } |
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| 146 | |||
| 147 | void scroll (void) |
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| 148 | { |
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| 149 | uint16_t adress; |
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| 150 | |||
| 151 | for (adress=0;adress<896;adress++) |
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| 152 | { |
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| 153 | display_buffer[adress] = display_buffer[adress+128]; |
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| 154 | set_adress(adress,display_buffer[adress]); |
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| 155 | } |
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| 156 | for (adress=896;adress<1024;adress++) |
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| 157 | { |
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| 158 | display_buffer[adress] = 0; |
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| 159 | set_adress(adress,0); |
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| 160 | } |
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| 161 | } |
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| 162 | |||
| 163 | // |
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| 164 | // x,y = character-Pos. ! |
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| 165 | // |
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| 166 | // mode: 0=Overwrite, 1 = OR, 2 = XOR, 3 = AND, 4 = Delete |
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| 167 | void put_char (uint8_t x, uint8_t y, uint8_t c, uint8_t mode) |
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| 168 | { |
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| 169 | uint8_t ch; |
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| 170 | uint8_t i; |
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| 171 | uint16_t adress; |
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| 172 | |||
| 173 | switch(c) |
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| 174 | { |
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| 175 | case 'ä': |
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| 176 | c = 0x84; |
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| 177 | break; |
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| 178 | case 'ö': |
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| 179 | c = 0x94; |
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| 180 | break; |
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| 181 | case 'ü': |
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| 182 | c = 0x81; |
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| 183 | break; |
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| 184 | case 'Ä': |
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| 185 | c = 0x8E; |
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| 186 | break; |
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| 187 | case 'Ö': |
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| 188 | c = 0x99; |
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| 189 | break; |
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| 190 | case 'Ü': |
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| 191 | c = 0x9A; |
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| 192 | break; |
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| 193 | case 'ß': |
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| 194 | c = 0xE1; |
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| 195 | break; |
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| 196 | } |
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| 197 | |||
| 198 | adress = y*128 + x*6; |
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| 199 | adress &= 0x3FF; |
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| 200 | |||
| 201 | for (i=0;i<6;i++) |
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| 202 | { |
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| 203 | ch = pgm_read_byte (&f8x6[0][0] + i + c * 6); |
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| 204 | |||
| 205 | switch (mode) |
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| 206 | { |
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| 207 | case 0: |
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| 208 | display_buffer[adress+i] = ch; |
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| 209 | break; |
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| 210 | case 1: |
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| 211 | display_buffer[adress+i] |= ch; |
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| 212 | break; |
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| 213 | case 2: |
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| 214 | display_buffer[adress+i] ^= ch; |
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| 215 | break; |
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| 216 | case 3: |
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| 217 | display_buffer[adress+i] &= ch; |
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| 218 | break; |
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| 219 | case 4: |
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| 220 | display_buffer[adress+i] &= ~ch; |
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| 221 | break; |
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| 222 | } |
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| 223 | |||
| 224 | set_adress(adress+i,display_buffer[adress+i]); |
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| 225 | } |
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| 226 | } |
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| 227 | |||
| 228 | void new_line (void) |
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| 229 | { |
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| 230 | lcd_ypos++; |
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| 231 | |||
| 232 | if (lcd_ypos > 7) |
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| 233 | { |
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| 234 | scroll(); |
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| 235 | lcd_ypos = 7; |
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| 236 | } |
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| 237 | } |
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| 238 | |||
| 239 | |||
| 240 | void lcd_printp (const char *text, uint8_t mode) |
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| 241 | { |
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| 242 | while (pgm_read_byte(text)) |
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| 243 | { |
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| 244 | if (pgm_read_byte(text) > 0x1F) |
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| 245 | { |
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| 246 | put_char(lcd_xpos,lcd_ypos,pgm_read_byte(text++),mode); |
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| 247 | |||
| 248 | lcd_xpos++; |
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| 249 | if (lcd_xpos > 20) |
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| 250 | { |
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| 251 | lcd_xpos = 0; |
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| 252 | new_line(); |
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| 253 | } |
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| 254 | } |
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| 255 | else |
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| 256 | { |
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| 257 | switch (pgm_read_byte(text)) |
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| 258 | { |
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| 259 | case 0x0D: |
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| 260 | lcd_xpos = 0; |
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| 261 | break; |
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| 262 | case 0x0A: |
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| 263 | new_line(); |
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| 264 | break; |
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| 265 | } |
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| 266 | text++; |
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| 267 | } |
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| 268 | } |
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| 269 | } |
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| 270 | |||
| 271 | void lcd_print_atp (uint8_t x, uint8_t y, const char *text, uint8_t mode) |
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| 272 | { |
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| 273 | lcd_xpos = x; |
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| 274 | lcd_ypos = y; |
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| 275 | lcd_printp (text, mode); |
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| 276 | } |
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| 277 | |||
| 278 | |||
| 279 | void lcd_print (uint8_t *text, uint8_t mode) |
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| 280 | { |
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| 281 | while (*text) |
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| 282 | { |
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| 283 | if (*text > 0x1F) |
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| 284 | { |
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| 285 | put_char(lcd_xpos,lcd_ypos,*text++,mode); |
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| 286 | |||
| 287 | lcd_xpos++; |
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| 288 | if (lcd_xpos > 20) |
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| 289 | { |
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| 290 | lcd_xpos = 0; |
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| 291 | new_line(); |
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| 292 | } |
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| 293 | } |
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| 294 | else |
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| 295 | { |
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| 296 | switch (*text) |
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| 297 | { |
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| 298 | case 0x0D: |
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| 299 | lcd_xpos = 0; |
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| 300 | break; |
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| 301 | case 0x0A: |
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| 302 | new_line(); |
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| 303 | break; |
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| 304 | } |
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| 305 | text++; |
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| 306 | } |
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| 307 | } |
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| 308 | } |
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| 309 | |||
| 310 | void lcd_print_at (uint8_t x, uint8_t y, uint8_t *text, uint8_t mode) |
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| 311 | { |
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| 312 | lcd_xpos = x; |
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| 313 | lcd_ypos = y; |
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| 314 | lcd_print(text, mode); |
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| 315 | } |
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| 316 | |||
| 317 | |||
| 318 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 319 | // + Plot (set one Pixel) |
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| 320 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 321 | // mode: |
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| 322 | // 0=Clear, 1=Set, 2=XOR |
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| 323 | void lcd_plot (uint8_t xpos, uint8_t ypos, uint8_t mode) |
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| 324 | { |
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| 325 | uint16_t adress; |
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| 326 | uint8_t mask; |
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| 327 | |||
| 328 | if ((xpos < 128) && (ypos < 64)) |
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| 329 | { |
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| 330 | adress = (ypos/8) * 128 + xpos; // adress = 0/8 * 128 + 0 = 0 |
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| 331 | mask = 1<<(ypos & 0x07); // mask = 1<<0 = 1 |
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| 332 | |||
| 333 | adress &= 0x3FF; |
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| 334 | |||
| 335 | switch (mode) |
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| 336 | { |
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| 337 | case 0: |
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| 338 | display_buffer[adress] &=~mask; |
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| 339 | break; |
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| 340 | case 1: |
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| 341 | display_buffer[adress] |= mask; |
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| 342 | break; |
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| 343 | case 2: |
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| 344 | display_buffer[adress] ^= mask; |
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| 345 | break; |
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| 346 | } |
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| 347 | |||
| 348 | set_adress(adress,display_buffer[adress]); |
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| 349 | } |
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| 350 | } |
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| 351 | |||
| 352 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 353 | // + Line (draws a line from x1,y1 to x2,y2 |
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| 354 | // + Based on Bresenham line-Algorithm |
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| 355 | // + found in the internet, modified by thkais 2007 |
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| 356 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 357 | |||
| 358 | void lcd_line(unsigned char x1, unsigned char y1, unsigned char x2, unsigned char y2, uint8_t mode) |
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| 359 | |||
| 360 | { |
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| 361 | int x,y,count,xs,ys,xm,ym; |
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| 362 | |||
| 363 | x=(int)x1; |
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| 364 | y=(int)y1; |
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| 365 | xs=(int)x2 - (int)x1; |
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| 366 | ys=(int)y2 - (int)y1; |
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| 367 | if(xs < 0) |
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| 368 | xm= -1; |
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| 369 | else |
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| 370 | if(xs > 0) |
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| 371 | xm= 1; |
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| 372 | else |
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| 373 | xm= 0; |
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| 374 | if(ys < 0) |
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| 375 | ym= -1; |
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| 376 | else |
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| 377 | if(ys > 0) |
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| 378 | ym= 1; |
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| 379 | else |
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| 380 | ym= 0; |
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| 381 | if(xs < 0) |
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| 382 | xs= -xs; |
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| 383 | if(ys < 0) |
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| 384 | ys= -ys; |
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| 385 | |||
| 386 | lcd_plot((unsigned char)x, (unsigned char)y, mode); |
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| 387 | |||
| 388 | if(xs > ys) // Flat Line <45 degrees |
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| 389 | { |
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| 390 | count= -(xs / 2); |
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| 391 | while(x != x2) |
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| 392 | { |
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| 393 | count= count + ys; |
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| 394 | x= x + xm; |
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| 395 | if(count > 0) |
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| 396 | { |
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| 397 | y= y + ym; |
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| 398 | count= count - xs; |
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| 399 | } |
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| 400 | lcd_plot((unsigned char)x, (unsigned char)y, mode); |
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| 401 | } |
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| 402 | } |
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| 403 | else // Line >=45 degrees |
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| 404 | { |
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| 405 | count=- (ys / 2); |
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| 406 | while(y != y2) |
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| 407 | { |
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| 408 | count= count + xs; |
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| 409 | y= y + ym; |
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| 410 | if(count > 0) |
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| 411 | { |
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| 412 | x= x + xm; |
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| 413 | count= count - ys; |
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| 414 | } |
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| 415 | lcd_plot((unsigned char)x, (unsigned char)y, mode); |
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| 416 | } |
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| 417 | } |
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| 418 | } |
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| 419 | |||
| 420 | |||
| 421 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 422 | // + Filled rectangle |
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| 423 | // + x1, y1 = upper left corner |
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| 424 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 425 | |||
| 426 | void lcd_frect (uint8_t x1, uint8_t y1, uint8_t widthx, uint8_t widthy, uint8_t mode) |
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| 427 | { |
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| 428 | uint16_t x2, y2; |
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| 429 | uint16_t i; |
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| 430 | |||
| 431 | if (x1 >= DISP_W) |
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| 432 | x1 = DISP_W - 1; |
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| 433 | if (y1 >= DISP_H) |
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| 434 | y1 = DISP_H - 1; |
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| 435 | x2 = x1 + widthx; |
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| 436 | y2 = y1 + widthy; |
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| 437 | |||
| 438 | if (x2 > DISP_W) |
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| 439 | x2 = DISP_W; |
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| 440 | if (y2 > DISP_H) |
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| 441 | y2 = DISP_H; |
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| 442 | |||
| 443 | for (i=y1;i<=y2;i++) |
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| 444 | { |
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| 445 | lcd_line(x1,i,x2,i,mode); |
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| 446 | } |
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| 447 | |||
| 448 | } |
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| 449 | |||
| 450 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 451 | // + outline of rectangle |
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| 452 | // + x1, y1 = upper left corner |
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| 453 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 454 | |||
| 455 | void lcd_rect (uint8_t x1, uint8_t y1, uint8_t widthx, uint8_t widthy, uint8_t mode) |
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| 456 | { |
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| 457 | uint16_t x2, y2; |
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| 458 | |||
| 459 | if (x1 >= DISP_W) |
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| 460 | x1 = DISP_W - 1; |
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| 461 | if (y1 >= DISP_H) |
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| 462 | y1 = DISP_H - 1; |
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| 463 | x2 = x1 + widthx; |
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| 464 | y2 = y1 + widthy; |
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| 465 | |||
| 466 | if (x2 > DISP_W) |
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| 467 | x2 = DISP_W; |
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| 468 | if (y2 > DISP_H) |
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| 469 | y2 = DISP_H; |
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| 470 | |||
| 471 | lcd_line (x1, y1, x2, y1, mode); |
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| 472 | lcd_line (x2, y1, x2, y2, mode); |
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| 473 | lcd_line (x2, y2, x1, y2, mode); |
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| 474 | lcd_line (x1, y2, x1, y1, mode); |
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| 475 | } |
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| 476 | |||
| 477 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 478 | // + outline of a circle |
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| 479 | // + Based on Bresenham-algorithm found in wikipedia |
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| 480 | // + modified by thkais (2007) |
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| 481 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 482 | |||
| 483 | |||
| 484 | void draw_circle(int16_t x0, int16_t y0, int16_t radius, uint8_t mode) |
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| 485 | { |
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| 486 | int16_t f = 1 - radius; |
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| 487 | int16_t ddF_x = 0; |
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| 488 | int16_t ddF_y = -2 * radius; |
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| 489 | int16_t x = 0; |
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| 490 | int16_t y = radius; |
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| 491 | |||
| 492 | lcd_plot(x0, y0 + radius, mode); |
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| 493 | lcd_plot(x0, y0 - radius, mode); |
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| 494 | lcd_plot(x0 + radius, y0, mode); |
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| 495 | lcd_plot(x0 - radius, y0, mode); |
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| 496 | |||
| 497 | while(x < y) |
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| 498 | { |
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| 499 | if(f >= 0) |
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| 500 | { |
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| 501 | y --; |
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| 502 | ddF_y += 2; |
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| 503 | f += ddF_y; |
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| 504 | } |
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| 505 | x ++; |
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| 506 | ddF_x += 2; |
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| 507 | f += ddF_x + 1; |
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| 508 | |||
| 509 | lcd_plot(x0 + x, y0 + y, mode); |
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| 510 | lcd_plot(x0 - x, y0 + y, mode); |
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| 511 | |||
| 512 | lcd_plot(x0 + x, y0 - y, mode); |
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| 513 | lcd_plot(x0 - x, y0 - y, mode); |
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| 514 | |||
| 515 | lcd_plot(x0 + y, y0 + x, mode); |
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| 516 | lcd_plot(x0 - y, y0 + x, mode); |
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| 517 | |||
| 518 | lcd_plot(x0 + y, y0 - x, mode); |
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| 519 | lcd_plot(x0 - y, y0 - x, mode); |
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| 520 | } |
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| 521 | } |
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| 522 | |||
| 523 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 524 | // + filled Circle |
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| 525 | // + modified circle-algorithm thkais (2007) |
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| 526 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 527 | |||
| 528 | void draw_fcircle(int16_t x0, int16_t y0, int16_t radius) |
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| 529 | { |
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| 530 | int16_t f = 1 - radius; |
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| 531 | int16_t ddF_x = 0; |
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| 532 | int16_t ddF_y = -2 * radius; |
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| 533 | int16_t x = 0; |
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| 534 | int16_t y = radius; |
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| 535 | |||
| 536 | lcd_line(x0, y0 + radius,x0, y0 - radius,1); |
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| 537 | |||
| 538 | lcd_line(x0 + radius, y0,x0 - radius, y0,1); |
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| 539 | |||
| 540 | while(x < y) |
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| 541 | { |
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| 542 | if(f >= 0) |
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| 543 | { |
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| 544 | y--; |
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| 545 | ddF_y += 2; |
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| 546 | f += ddF_y; |
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| 547 | } |
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| 548 | x++; |
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| 549 | ddF_x += 2; |
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| 550 | f += ddF_x + 1; |
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| 551 | |||
| 552 | lcd_line(x0 + x, y0 + y,x0 - x, y0 + y,1); |
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| 553 | lcd_line(x0 + x, y0 - y,x0 - x, y0 - y,1); |
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| 554 | lcd_line(x0 + y, y0 + x,x0 - y, y0 + x,1); |
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| 555 | lcd_line(x0 + y, y0 - x,x0 - y, y0 - x,1); |
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| 556 | } |
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| 557 | } |