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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 112 | mikeljo | 1 | |
| 114 | mikeljo | 2 | //#define F_CPU 7372800UL |
| 3 | |||
| 112 | mikeljo | 4 | #include <avr/io.h> |
| 5 | #include <inttypes.h> |
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| 6 | #include <stdlib.h> |
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| 7 | #include <avr/pgmspace.h> |
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| 8 | #include <util/delay.h> |
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| 9 | |||
| 10 | #include "font8x6.h" |
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| 11 | #include "main.h" |
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| 12 | #include "lcd.h" |
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| 13 | |||
| 14 | #define DISP_W 128 |
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| 15 | #define DISP_H 64 |
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| 16 | // #define LCD_ORIENTATION 0 // 0 MJ Tasten unten / 4 Original Tasten oben |
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| 17 | |||
| 18 | |||
| 19 | uint8_t lcd_xpos; |
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| 20 | uint8_t lcd_ypos; |
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| 21 | //volatile uint8_t display_buffer[1024]; // Display-Puffer, weil nicht zurückgelesen werden kann |
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| 22 | //volatile uint16_t display_buffer_pointer; // Pointer auf das aktuell übertragene Byte |
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| 23 | //volatile uint8_t display_buffer_counter; // Hilfszähler zur Selektierung der Page |
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| 24 | //volatile uint8_t display_page_counter; // aktuelle Page-Nummer |
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| 25 | //volatile uint8_t display_mode; // Modus für State-Machine |
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| 26 | |||
| 27 | |||
| 28 | void send_byte (uint8_t data) |
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| 29 | { |
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| 30 | clr_cs(); |
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| 31 | SPDR = data; |
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| 32 | while(!(SPSR & (1<<SPIF))); |
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| 33 | SPSR = SPSR; |
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| 34 | set_cs(); |
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| 35 | } |
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| 36 | |||
| 37 | void cls (void) |
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| 38 | { |
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| 39 | uint16_t i,j; |
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| 40 | |||
| 41 | for (i=0;i<1024;i++) |
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| 42 | display_buffer[i] = 0x00; |
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| 43 | |||
| 44 | for (i=0;i<8;i++) |
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| 45 | { |
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| 46 | clr_A0(); |
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| 47 | send_byte(0xB0+i); //1011xxxx |
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| 48 | send_byte(0x10); //00010000 |
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| 49 | // send_byte(0x04); //00000100 gedreht plus 4 Byte |
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| 50 | // send_byte(0x00); //00000000 |
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| 51 | send_byte(LCD_ORIENTATION); //00000000 |
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| 52 | |||
| 53 | |||
| 54 | set_A0(); |
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| 55 | for (j=0;j<128;j++) |
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| 56 | send_byte(0x00); |
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| 57 | } |
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| 58 | |||
| 59 | lcd_xpos = 0; |
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| 60 | lcd_ypos = 0; |
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| 61 | } |
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| 62 | |||
| 63 | void lcd_cls (void) |
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| 64 | { |
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| 65 | cls(); |
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| 66 | } |
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| 67 | |||
| 68 | void wait_1ms(void) |
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| 69 | { |
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| 70 | _delay_ms (1.0); |
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| 71 | } |
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| 72 | |||
| 73 | void wait_ms (uint16_t time) |
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| 74 | { |
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| 75 | uint16_t i; |
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| 76 | |||
| 77 | for (i=0; i<time; i++) |
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| 78 | wait_1ms(); |
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| 79 | } |
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| 80 | |||
| 81 | void lcd_init (void) |
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| 82 | { |
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| 83 | lcd_xpos = 0; |
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| 84 | lcd_ypos = 0; |
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| 85 | |||
| 86 | |||
| 87 | DDRB = 0xFF; |
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| 88 | |||
| 89 | SPCR = (1<<SPE)|(1<<MSTR)|(1<<CPHA)|(1<<CPOL)|(1<<SPR1); |
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| 90 | |||
| 91 | set_cs(); |
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| 92 | clr_reset(); |
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| 93 | wait_ms(10); |
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| 94 | set_reset(); |
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| 95 | |||
| 96 | clr_cs(); |
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| 97 | clr_A0(); |
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| 98 | |||
| 99 | send_byte(0x40); |
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| 100 | |||
| 101 | if (LCD_ORIENTATION == 0) |
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| 102 | { |
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| 103 | send_byte(0xA1); // A1 normal A0 reverse(original) |
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| 104 | send_byte(0xC0); // C0 normal C8 reverse(original) |
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| 105 | } |
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| 106 | else |
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| 107 | { |
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| 108 | send_byte(0xA0); // A1 normal A0 reverse(original) |
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| 109 | send_byte(0xC8); // C0 normal C8 reverse(original) |
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| 110 | } |
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| 111 | send_byte(0xA6); |
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| 112 | send_byte(0xA2); |
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| 113 | send_byte(0x2F); |
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| 114 | send_byte(0xF8); |
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| 115 | send_byte(0x00); |
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| 116 | send_byte(0x27); |
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| 117 | send_byte(0x81); |
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| 118 | send_byte(0x16); |
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| 119 | send_byte(0xAC); |
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| 120 | send_byte(0x00); |
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| 121 | send_byte(0xAF); |
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| 122 | |||
| 123 | cls(); |
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| 124 | |||
| 125 | } |
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| 126 | |||
| 127 | void set_adress (uint16_t adress, uint8_t data) |
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| 128 | { |
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| 129 | uint8_t page; |
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| 130 | uint8_t column; |
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| 131 | |||
| 132 | page = adress >> 7; |
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| 133 | |||
| 134 | clr_A0(); |
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| 135 | send_byte(0xB0 + page); |
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| 136 | |||
| 137 | // column = (adress & 0x7F) + 4; Wenn gedreht |
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| 138 | // column = (adress & 0x7F); |
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| 139 | column = (adress & 0x7F) + LCD_ORIENTATION; |
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| 140 | |||
| 141 | send_byte(0x10 + (column >> 4)); |
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| 142 | send_byte(column & 0x0F); |
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| 143 | |||
| 144 | set_A0(); |
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| 145 | send_byte(data); |
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| 146 | } |
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| 147 | |||
| 148 | void scroll (void) |
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| 149 | { |
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| 150 | uint16_t adress; |
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| 151 | |||
| 152 | for (adress=0;adress<896;adress++) |
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| 153 | { |
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| 154 | display_buffer[adress] = display_buffer[adress+128]; |
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| 155 | set_adress(adress,display_buffer[adress]); |
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| 156 | } |
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| 157 | for (adress=896;adress<1024;adress++) |
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| 158 | { |
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| 159 | display_buffer[adress] = 0; |
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| 160 | set_adress(adress,0); |
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| 161 | } |
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| 162 | } |
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| 163 | |||
| 164 | // |
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| 165 | // x,y = character-Pos. ! |
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| 166 | // |
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| 167 | // mode: 0=Overwrite, 1 = OR, 2 = XOR, 3 = AND, 4 = Delete |
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| 168 | void put_char (uint8_t x, uint8_t y, uint8_t c, uint8_t mode) |
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| 169 | { |
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| 170 | uint8_t ch; |
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| 171 | uint8_t i; |
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| 172 | uint16_t adress; |
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| 173 | |||
| 174 | switch(c) |
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| 175 | { |
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| 176 | case 'ä': |
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| 177 | c = 0x84; |
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| 178 | break; |
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| 179 | case 'ö': |
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| 180 | c = 0x94; |
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| 181 | break; |
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| 182 | case 'ü': |
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| 183 | c = 0x81; |
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| 184 | break; |
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| 185 | case 'Ä': |
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| 186 | c = 0x8E; |
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| 187 | break; |
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| 188 | case 'Ö': |
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| 189 | c = 0x99; |
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| 190 | break; |
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| 191 | case 'Ü': |
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| 192 | c = 0x9A; |
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| 193 | break; |
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| 194 | case 'ß': |
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| 195 | c = 0xE1; |
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| 196 | break; |
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| 197 | } |
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| 198 | |||
| 199 | adress = y*128 + x*6; |
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| 200 | adress &= 0x3FF; |
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| 201 | |||
| 202 | for (i=0;i<6;i++) |
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| 203 | { |
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| 204 | ch = pgm_read_byte (&f8x6[0][0] + i + c * 6); |
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| 205 | |||
| 206 | switch (mode) |
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| 207 | { |
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| 208 | case 0: |
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| 209 | display_buffer[adress+i] = ch; |
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| 210 | break; |
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| 211 | case 1: |
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| 212 | display_buffer[adress+i] |= ch; |
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| 213 | break; |
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| 214 | case 2: |
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| 215 | display_buffer[adress+i] ^= ch; |
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| 216 | break; |
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| 217 | case 3: |
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| 218 | display_buffer[adress+i] &= ch; |
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| 219 | break; |
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| 220 | case 4: |
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| 221 | display_buffer[adress+i] &= ~ch; |
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| 222 | break; |
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| 223 | } |
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| 224 | |||
| 225 | set_adress(adress+i,display_buffer[adress+i]); |
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| 226 | } |
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| 227 | } |
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| 228 | |||
| 229 | void new_line (void) |
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| 230 | { |
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| 231 | lcd_ypos++; |
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| 232 | |||
| 233 | if (lcd_ypos > 7) |
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| 234 | { |
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| 235 | scroll(); |
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| 236 | lcd_ypos = 7; |
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| 237 | } |
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| 238 | } |
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| 239 | |||
| 240 | |||
| 241 | void lcd_printp (const char *text, uint8_t mode) |
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| 242 | { |
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| 243 | while (pgm_read_byte(text)) |
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| 244 | { |
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| 245 | if (pgm_read_byte(text) > 0x1F) |
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| 246 | { |
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| 247 | put_char(lcd_xpos,lcd_ypos,pgm_read_byte(text++),mode); |
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| 248 | |||
| 249 | lcd_xpos++; |
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| 250 | if (lcd_xpos > 20) |
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| 251 | { |
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| 252 | lcd_xpos = 0; |
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| 253 | new_line(); |
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| 254 | } |
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| 255 | } |
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| 256 | else |
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| 257 | { |
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| 258 | switch (pgm_read_byte(text)) |
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| 259 | { |
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| 260 | case 0x0D: |
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| 261 | lcd_xpos = 0; |
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| 262 | break; |
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| 263 | case 0x0A: |
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| 264 | new_line(); |
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| 265 | break; |
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| 266 | } |
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| 267 | text++; |
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| 268 | } |
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| 269 | } |
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| 270 | } |
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| 271 | |||
| 272 | void lcd_print_atp (uint8_t x, uint8_t y, const char *text, uint8_t mode) |
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| 273 | { |
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| 274 | lcd_xpos = x; |
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| 275 | lcd_ypos = y; |
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| 276 | lcd_printp (text, mode); |
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| 277 | } |
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| 278 | |||
| 279 | |||
| 280 | void lcd_print (uint8_t *text, uint8_t mode) |
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| 281 | { |
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| 282 | while (*text) |
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| 283 | { |
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| 284 | if (*text > 0x1F) |
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| 285 | { |
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| 286 | put_char(lcd_xpos,lcd_ypos,*text++,mode); |
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| 287 | |||
| 288 | lcd_xpos++; |
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| 289 | if (lcd_xpos > 20) |
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| 290 | { |
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| 291 | lcd_xpos = 0; |
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| 292 | new_line(); |
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| 293 | } |
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| 294 | } |
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| 295 | else |
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| 296 | { |
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| 297 | switch (*text) |
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| 298 | { |
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| 299 | case 0x0D: |
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| 300 | lcd_xpos = 0; |
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| 301 | break; |
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| 302 | case 0x0A: |
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| 303 | new_line(); |
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| 304 | break; |
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| 305 | } |
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| 306 | text++; |
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| 307 | } |
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| 308 | } |
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| 309 | } |
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| 310 | |||
| 311 | void lcd_print_at (uint8_t x, uint8_t y, uint8_t *text, uint8_t mode) |
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| 312 | { |
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| 313 | lcd_xpos = x; |
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| 314 | lcd_ypos = y; |
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| 315 | lcd_print(text, mode); |
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| 316 | } |
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| 317 | |||
| 318 | |||
| 319 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 320 | // + Plot (set one Pixel) |
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| 321 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 322 | // mode: |
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| 323 | // 0=Clear, 1=Set, 2=XOR |
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| 324 | void lcd_plot (uint8_t xpos, uint8_t ypos, uint8_t mode) |
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| 325 | { |
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| 326 | uint16_t adress; |
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| 327 | uint8_t mask; |
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| 328 | |||
| 329 | if ((xpos < 128) && (ypos < 64)) |
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| 330 | { |
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| 331 | adress = (ypos/8) * 128 + xpos; // adress = 0/8 * 128 + 0 = 0 |
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| 332 | mask = 1<<(ypos & 0x07); // mask = 1<<0 = 1 |
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| 333 | |||
| 334 | adress &= 0x3FF; |
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| 335 | |||
| 336 | switch (mode) |
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| 337 | { |
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| 338 | case 0: |
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| 339 | display_buffer[adress] &=~mask; |
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| 340 | break; |
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| 341 | case 1: |
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| 342 | display_buffer[adress] |= mask; |
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| 343 | break; |
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| 344 | case 2: |
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| 345 | display_buffer[adress] ^= mask; |
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| 346 | break; |
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| 347 | } |
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| 348 | |||
| 349 | set_adress(adress,display_buffer[adress]); |
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| 350 | } |
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| 351 | } |
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| 352 | |||
| 353 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 354 | // + Line (draws a line from x1,y1 to x2,y2 |
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| 355 | // + Based on Bresenham line-Algorithm |
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| 356 | // + found in the internet, modified by thkais 2007 |
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| 357 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 358 | |||
| 359 | void lcd_line(unsigned char x1, unsigned char y1, unsigned char x2, unsigned char y2, uint8_t mode) |
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| 360 | |||
| 361 | { |
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| 362 | int x,y,count,xs,ys,xm,ym; |
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| 363 | |||
| 364 | x=(int)x1; |
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| 365 | y=(int)y1; |
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| 366 | xs=(int)x2 - (int)x1; |
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| 367 | ys=(int)y2 - (int)y1; |
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| 368 | if(xs < 0) |
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| 369 | xm= -1; |
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| 370 | else |
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| 371 | if(xs > 0) |
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| 372 | xm= 1; |
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| 373 | else |
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| 374 | xm= 0; |
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| 375 | if(ys < 0) |
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| 376 | ym= -1; |
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| 377 | else |
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| 378 | if(ys > 0) |
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| 379 | ym= 1; |
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| 380 | else |
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| 381 | ym= 0; |
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| 382 | if(xs < 0) |
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| 383 | xs= -xs; |
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| 384 | if(ys < 0) |
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| 385 | ys= -ys; |
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| 386 | |||
| 387 | lcd_plot((unsigned char)x, (unsigned char)y, mode); |
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| 388 | |||
| 389 | if(xs > ys) // Flat Line <45 degrees |
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| 390 | { |
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| 391 | count= -(xs / 2); |
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| 392 | while(x != x2) |
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| 393 | { |
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| 394 | count= count + ys; |
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| 395 | x= x + xm; |
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| 396 | if(count > 0) |
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| 397 | { |
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| 398 | y= y + ym; |
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| 399 | count= count - xs; |
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| 400 | } |
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| 401 | lcd_plot((unsigned char)x, (unsigned char)y, mode); |
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| 402 | } |
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| 403 | } |
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| 404 | else // Line >=45 degrees |
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| 405 | { |
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| 406 | count=- (ys / 2); |
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| 407 | while(y != y2) |
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| 408 | { |
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| 409 | count= count + xs; |
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| 410 | y= y + ym; |
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| 411 | if(count > 0) |
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| 412 | { |
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| 413 | x= x + xm; |
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| 414 | count= count - ys; |
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| 415 | } |
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| 416 | lcd_plot((unsigned char)x, (unsigned char)y, mode); |
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| 417 | } |
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| 418 | } |
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| 419 | } |
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| 420 | |||
| 421 | |||
| 422 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 423 | // + Filled rectangle |
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| 424 | // + x1, y1 = upper left corner |
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| 425 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 426 | |||
| 427 | void lcd_frect (uint8_t x1, uint8_t y1, uint8_t widthx, uint8_t widthy, uint8_t mode) |
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| 428 | { |
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| 429 | uint16_t x2, y2; |
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| 430 | uint16_t i; |
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| 431 | |||
| 432 | if (x1 >= DISP_W) |
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| 433 | x1 = DISP_W - 1; |
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| 434 | if (y1 >= DISP_H) |
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| 435 | y1 = DISP_H - 1; |
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| 436 | x2 = x1 + widthx; |
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| 437 | y2 = y1 + widthy; |
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| 438 | |||
| 439 | if (x2 > DISP_W) |
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| 440 | x2 = DISP_W; |
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| 441 | if (y2 > DISP_H) |
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| 442 | y2 = DISP_H; |
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| 443 | |||
| 444 | for (i=y1;i<=y2;i++) |
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| 445 | { |
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| 446 | lcd_line(x1,i,x2,i,mode); |
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| 447 | } |
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| 448 | |||
| 449 | } |
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| 450 | |||
| 451 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 452 | // + outline of rectangle |
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| 453 | // + x1, y1 = upper left corner |
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| 454 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 455 | |||
| 456 | void lcd_rect (uint8_t x1, uint8_t y1, uint8_t widthx, uint8_t widthy, uint8_t mode) |
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| 457 | { |
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| 458 | uint16_t x2, y2; |
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| 459 | |||
| 460 | if (x1 >= DISP_W) |
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| 461 | x1 = DISP_W - 1; |
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| 462 | if (y1 >= DISP_H) |
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| 463 | y1 = DISP_H - 1; |
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| 464 | x2 = x1 + widthx; |
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| 465 | y2 = y1 + widthy; |
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| 466 | |||
| 467 | if (x2 > DISP_W) |
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| 468 | x2 = DISP_W; |
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| 469 | if (y2 > DISP_H) |
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| 470 | y2 = DISP_H; |
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| 471 | |||
| 472 | lcd_line (x1, y1, x2, y1, mode); |
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| 473 | lcd_line (x2, y1, x2, y2, mode); |
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| 474 | lcd_line (x2, y2, x1, y2, mode); |
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| 475 | lcd_line (x1, y2, x1, y1, mode); |
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| 476 | } |
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| 477 | |||
| 478 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 479 | // + outline of a circle |
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| 480 | // + Based on Bresenham-algorithm found in wikipedia |
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| 481 | // + modified by thkais (2007) |
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| 482 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 483 | |||
| 484 | |||
| 485 | void draw_circle(int16_t x0, int16_t y0, int16_t radius, uint8_t mode) |
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| 486 | { |
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| 487 | int16_t f = 1 - radius; |
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| 488 | int16_t ddF_x = 0; |
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| 489 | int16_t ddF_y = -2 * radius; |
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| 490 | int16_t x = 0; |
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| 491 | int16_t y = radius; |
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| 492 | |||
| 493 | lcd_plot(x0, y0 + radius, mode); |
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| 494 | lcd_plot(x0, y0 - radius, mode); |
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| 495 | lcd_plot(x0 + radius, y0, mode); |
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| 496 | lcd_plot(x0 - radius, y0, mode); |
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| 497 | |||
| 498 | while(x < y) |
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| 499 | { |
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| 500 | if(f >= 0) |
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| 501 | { |
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| 502 | y --; |
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| 503 | ddF_y += 2; |
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| 504 | f += ddF_y; |
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| 505 | } |
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| 506 | x ++; |
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| 507 | ddF_x += 2; |
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| 508 | f += ddF_x + 1; |
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| 509 | |||
| 510 | lcd_plot(x0 + x, y0 + y, mode); |
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| 511 | lcd_plot(x0 - x, y0 + y, mode); |
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| 512 | |||
| 513 | lcd_plot(x0 + x, y0 - y, mode); |
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| 514 | lcd_plot(x0 - x, y0 - y, mode); |
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| 515 | |||
| 516 | lcd_plot(x0 + y, y0 + x, mode); |
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| 517 | lcd_plot(x0 - y, y0 + x, mode); |
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| 518 | |||
| 519 | lcd_plot(x0 + y, y0 - x, mode); |
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| 520 | lcd_plot(x0 - y, y0 - x, mode); |
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| 521 | } |
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| 522 | } |
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| 523 | |||
| 524 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 525 | // + filled Circle |
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| 526 | // + modified circle-algorithm thkais (2007) |
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| 527 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 528 | |||
| 529 | void draw_fcircle(int16_t x0, int16_t y0, int16_t radius) |
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| 530 | { |
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| 531 | int16_t f = 1 - radius; |
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| 532 | int16_t ddF_x = 0; |
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| 533 | int16_t ddF_y = -2 * radius; |
||
| 534 | int16_t x = 0; |
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| 535 | int16_t y = radius; |
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| 536 | |||
| 537 | lcd_line(x0, y0 + radius,x0, y0 - radius,1); |
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| 538 | |||
| 539 | lcd_line(x0 + radius, y0,x0 - radius, y0,1); |
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| 540 | |||
| 541 | while(x < y) |
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| 542 | { |
||
| 543 | if(f >= 0) |
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| 544 | { |
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| 545 | y--; |
||
| 546 | ddF_y += 2; |
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| 547 | f += ddF_y; |
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| 548 | } |
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| 549 | x++; |
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| 550 | ddF_x += 2; |
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| 551 | f += ddF_x + 1; |
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| 552 | |||
| 553 | lcd_line(x0 + x, y0 + y,x0 - x, y0 + y,1); |
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| 554 | lcd_line(x0 + x, y0 - y,x0 - x, y0 - y,1); |
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| 555 | lcd_line(x0 + y, y0 + x,x0 - y, y0 + x,1); |
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| 556 | lcd_line(x0 + y, y0 - x,x0 - y, y0 - x,1); |
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| 557 | } |
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| 558 | } |