Basic library for SHARP LCD LS027B4DH01/LS027B7DH01
Dependents: AkiSpiLcd_demo AkiSpiLcd_demo2 LCDRAM AkiSpiLcd_example
AkiSpiLcd.cpp@30:d5c18e268866, 2016-10-19 (annotated)
- Committer:
- Kazuki Yamamoto
- Date:
- Wed Oct 19 22:26:33 2016 +0900
- Revision:
- 30:d5c18e268866
- Parent:
- 18:e3f59b23dd3a
- Child:
- 31:7c7faf88edcc
apply clang-format formatter
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
k4zuki | 1:57de84d2025c | 1 | /** this is for SHARP LCD LS027B4DH01 |
Kazuki Yamamoto |
30:d5c18e268866 | 2 | * (c) Kazuki Yamamoto, or _K4ZUKI_ |
k4zuki | 0:b3c8fdd01601 | 3 | */ |
k4zuki | 0:b3c8fdd01601 | 4 | |
Kazuki Yamamoto |
30:d5c18e268866 | 5 | #include "AkiSpiLcd.h" |
k4zuki | 0:b3c8fdd01601 | 6 | #include "mbed.h" |
Kazuki Yamamoto |
30:d5c18e268866 | 7 | // #include "Ser23K256.h" |
k4zuki | 11:16647ecd67ce | 8 | extern const uint8_t lcd_line[]; |
k4zuki | 0:b3c8fdd01601 | 9 | |
Kazuki Yamamoto |
30:d5c18e268866 | 10 | AkiSpiLcd::AkiSpiLcd(PinName mosi, PinName miso, PinName sck, PinName csl, |
Kazuki Yamamoto |
30:d5c18e268866 | 11 | PinName csr) |
Kazuki Yamamoto |
30:d5c18e268866 | 12 | : _spi(mosi, miso, sck), _csl(csl), _csr(csr) { |
Kazuki Yamamoto |
30:d5c18e268866 | 13 | _csl = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 14 | _csr = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 15 | _spi.format(8, 0); |
Kazuki Yamamoto |
30:d5c18e268866 | 16 | _spi.frequency(10000000); |
Kazuki Yamamoto |
30:d5c18e268866 | 17 | _comflag = _modeflag = _clearflag = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 18 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 19 | |
Kazuki Yamamoto |
30:d5c18e268866 | 20 | void AkiSpiLcd::cls() { |
Kazuki Yamamoto |
30:d5c18e268866 | 21 | _modeflag = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 22 | _clearflag = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 23 | |
Kazuki Yamamoto |
30:d5c18e268866 | 24 | _csl = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 25 | wait_us(5); |
Kazuki Yamamoto |
30:d5c18e268866 | 26 | |
Kazuki Yamamoto |
30:d5c18e268866 | 27 | _spi.write((_modeflag << 7) | (_comflag << 6) | (_clearflag << 5)); |
Kazuki Yamamoto |
30:d5c18e268866 | 28 | _spi.write(0x00); |
Kazuki Yamamoto |
30:d5c18e268866 | 29 | |
Kazuki Yamamoto |
30:d5c18e268866 | 30 | wait_us(5); |
Kazuki Yamamoto |
30:d5c18e268866 | 31 | _csl = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 32 | |
Kazuki Yamamoto |
30:d5c18e268866 | 33 | cominvert(); |
k4zuki | 0:b3c8fdd01601 | 34 | } |
k4zuki | 0:b3c8fdd01601 | 35 | |
Kazuki Yamamoto |
30:d5c18e268866 | 36 | void AkiSpiLcd::cls_ram(int screen) { |
Kazuki Yamamoto |
30:d5c18e268866 | 37 | screen &= 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 38 | if (screen == SCREEN0) { |
Kazuki Yamamoto |
30:d5c18e268866 | 39 | _cls_ram(SCREEN0_BASE); |
Kazuki Yamamoto |
30:d5c18e268866 | 40 | } else { |
Kazuki Yamamoto |
30:d5c18e268866 | 41 | _cls_ram(SCREEN1_BASE); |
Kazuki Yamamoto |
30:d5c18e268866 | 42 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 43 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 44 | |
Kazuki Yamamoto |
30:d5c18e268866 | 45 | void AkiSpiLcd::directUpdateSingle(int line, uint8_t *data) { |
Kazuki Yamamoto |
30:d5c18e268866 | 46 | _modeflag = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 47 | _clearflag = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 48 | |
Kazuki Yamamoto |
30:d5c18e268866 | 49 | _csl = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 50 | wait_us(1); |
Kazuki Yamamoto |
30:d5c18e268866 | 51 | |
Kazuki Yamamoto |
30:d5c18e268866 | 52 | if (line == 0) |
Kazuki Yamamoto |
30:d5c18e268866 | 53 | line = 1; |
k4zuki | 0:b3c8fdd01601 | 54 | |
Kazuki Yamamoto |
30:d5c18e268866 | 55 | _spi.write((_modeflag << 7) | (_comflag << 6) | (_clearflag << 5)); |
Kazuki Yamamoto |
30:d5c18e268866 | 56 | _spi.write((uint8_t)lcd_line[line]); |
Kazuki Yamamoto |
30:d5c18e268866 | 57 | |
Kazuki Yamamoto |
30:d5c18e268866 | 58 | for (int i = 0; i < 50; i++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 59 | _spi.write(*(data + i)); |
Kazuki Yamamoto |
30:d5c18e268866 | 60 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 61 | _spi.write(0x00); |
Kazuki Yamamoto |
30:d5c18e268866 | 62 | _spi.write(0x00); |
Kazuki Yamamoto |
30:d5c18e268866 | 63 | |
Kazuki Yamamoto |
30:d5c18e268866 | 64 | wait_us(5); |
Kazuki Yamamoto |
30:d5c18e268866 | 65 | _csl = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 66 | |
Kazuki Yamamoto |
30:d5c18e268866 | 67 | cominvert(); |
Kazuki Yamamoto |
30:d5c18e268866 | 68 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 69 | |
Kazuki Yamamoto |
30:d5c18e268866 | 70 | void AkiSpiLcd::directUpdateMulti(int line, int length, uint8_t *data) { |
Kazuki Yamamoto |
30:d5c18e268866 | 71 | _modeflag = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 72 | _clearflag = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 73 | |
Kazuki Yamamoto |
30:d5c18e268866 | 74 | if (line == 0) |
Kazuki Yamamoto |
30:d5c18e268866 | 75 | line = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 76 | |
Kazuki Yamamoto |
30:d5c18e268866 | 77 | if (length > 0) { |
k4zuki | 18:e3f59b23dd3a | 78 | _csl = 1; |
k4zuki | 0:b3c8fdd01601 | 79 | wait_us(5); |
Kazuki Yamamoto |
30:d5c18e268866 | 80 | for (int j = 1; j <= length; j++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 81 | _spi.write((_modeflag << 7) | (_comflag << 6) | (_clearflag << 5)); |
Kazuki Yamamoto |
30:d5c18e268866 | 82 | _spi.write((uint8_t)lcd_line[line]); |
Kazuki Yamamoto |
30:d5c18e268866 | 83 | for (int i = 0; i < 50; i++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 84 | _spi.write(*(data + (50 * j + i))); // hogepic[50*j+i] |
Kazuki Yamamoto |
30:d5c18e268866 | 85 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 86 | line += 1; |
k4zuki | 0:b3c8fdd01601 | 87 | } |
k4zuki | 0:b3c8fdd01601 | 88 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 89 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 90 | wait_us(5); |
k4zuki | 18:e3f59b23dd3a | 91 | _csl = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 92 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 93 | cominvert(); |
k4zuki | 0:b3c8fdd01601 | 94 | } |
k4zuki | 0:b3c8fdd01601 | 95 | |
Kazuki Yamamoto |
30:d5c18e268866 | 96 | void AkiSpiLcd::cominvert() { |
Kazuki Yamamoto |
30:d5c18e268866 | 97 | _modeflag = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 98 | _clearflag = 0; |
k4zuki | 14:812873f3a933 | 99 | |
Kazuki Yamamoto |
30:d5c18e268866 | 100 | _csl = 1; |
k4zuki | 0:b3c8fdd01601 | 101 | |
Kazuki Yamamoto |
30:d5c18e268866 | 102 | _spi.write((_modeflag << 7) | (_comflag << 6) | (_clearflag << 5)); |
Kazuki Yamamoto |
30:d5c18e268866 | 103 | _spi.write(0x00); |
Kazuki Yamamoto |
30:d5c18e268866 | 104 | // wait_us(5); |
Kazuki Yamamoto |
30:d5c18e268866 | 105 | _csl = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 106 | if (_comflag == 0) { |
Kazuki Yamamoto |
30:d5c18e268866 | 107 | _comflag = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 108 | } else { |
Kazuki Yamamoto |
30:d5c18e268866 | 109 | _comflag = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 110 | } |
k4zuki | 0:b3c8fdd01601 | 111 | } |
k4zuki | 14:812873f3a933 | 112 | |
k4zuki | 14:812873f3a933 | 113 | /** Reads single line (16 + 400 bits = 52 bytes) from a screen |
k4zuki | 3:f835b8daf9a0 | 114 | */ |
Kazuki Yamamoto |
30:d5c18e268866 | 115 | void AkiSpiLcd::ramReadSingleLine(int line, uint8_t *buffer, int screen) { |
Kazuki Yamamoto |
30:d5c18e268866 | 116 | screen &= 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 117 | if (screen == SCREEN0) { |
Kazuki Yamamoto |
30:d5c18e268866 | 118 | screen = SCREEN0_BASE; |
Kazuki Yamamoto |
30:d5c18e268866 | 119 | } else { |
Kazuki Yamamoto |
30:d5c18e268866 | 120 | screen = SCREEN1_BASE; |
Kazuki Yamamoto |
30:d5c18e268866 | 121 | } |
k4zuki | 14:812873f3a933 | 122 | |
Kazuki Yamamoto |
30:d5c18e268866 | 123 | line *= RAMLINE_LENGTH; |
Kazuki Yamamoto |
30:d5c18e268866 | 124 | int address = screen + line; |
Kazuki Yamamoto |
30:d5c18e268866 | 125 | ram_read(address, buffer, RAMLINE_LENGTH); |
k4zuki | 4:844693a617dc | 126 | } |
k4zuki | 4:844693a617dc | 127 | |
k4zuki | 14:812873f3a933 | 128 | /** Reads multi lines( (16 + 400) x N bits = 52 x N bytes) from a screen |
k4zuki | 9:33d5888d1fb9 | 129 | */ |
Kazuki Yamamoto |
30:d5c18e268866 | 130 | void AkiSpiLcd::ramReadMultiLine(int line, int length, uint8_t *buffer, |
Kazuki Yamamoto |
30:d5c18e268866 | 131 | int screen) { |
Kazuki Yamamoto |
30:d5c18e268866 | 132 | screen &= 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 133 | if (screen == SCREEN0) { |
Kazuki Yamamoto |
30:d5c18e268866 | 134 | screen = SCREEN0_BASE; |
Kazuki Yamamoto |
30:d5c18e268866 | 135 | } else { |
Kazuki Yamamoto |
30:d5c18e268866 | 136 | screen = SCREEN1_BASE; |
Kazuki Yamamoto |
30:d5c18e268866 | 137 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 138 | line *= RAMLINE_LENGTH; |
Kazuki Yamamoto |
30:d5c18e268866 | 139 | int address = screen + line; |
Kazuki Yamamoto |
30:d5c18e268866 | 140 | ram_read(address, buffer, RAMLINE_LENGTH * length); |
k4zuki | 4:844693a617dc | 141 | } |
k4zuki | 9:33d5888d1fb9 | 142 | |
k4zuki | 9:33d5888d1fb9 | 143 | /** Writes single line (400 bits = 50 bytes) into a screen |
k4zuki | 9:33d5888d1fb9 | 144 | */ |
Kazuki Yamamoto |
30:d5c18e268866 | 145 | void AkiSpiLcd::ramWriteSingleLine(int line, uint8_t *data, int screen) { |
Kazuki Yamamoto |
30:d5c18e268866 | 146 | screen &= 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 147 | if (screen == SCREEN0) { |
Kazuki Yamamoto |
30:d5c18e268866 | 148 | screen = SCREEN0_BASE; |
Kazuki Yamamoto |
30:d5c18e268866 | 149 | } else { |
Kazuki Yamamoto |
30:d5c18e268866 | 150 | screen = SCREEN1_BASE; |
Kazuki Yamamoto |
30:d5c18e268866 | 151 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 152 | line--; |
Kazuki Yamamoto |
30:d5c18e268866 | 153 | line *= RAMLINE_LENGTH; |
Kazuki Yamamoto |
30:d5c18e268866 | 154 | int address = screen + line; |
Kazuki Yamamoto |
30:d5c18e268866 | 155 | ram_write(address, data, 50); |
k4zuki | 14:812873f3a933 | 156 | } |
k4zuki | 14:812873f3a933 | 157 | |
k4zuki | 14:812873f3a933 | 158 | /** Writes multi lines(400 x N bits = 50 x N bytes) into a screen |
k4zuki | 14:812873f3a933 | 159 | */ |
Kazuki Yamamoto |
30:d5c18e268866 | 160 | void AkiSpiLcd::ramWriteMultiLine(int line, int length, uint8_t *data, |
Kazuki Yamamoto |
30:d5c18e268866 | 161 | int screen) { |
Kazuki Yamamoto |
30:d5c18e268866 | 162 | _modeflag = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 163 | _clearflag = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 164 | screen &= 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 165 | if (screen == SCREEN0) { |
Kazuki Yamamoto |
30:d5c18e268866 | 166 | screen = SCREEN0_BASE; |
Kazuki Yamamoto |
30:d5c18e268866 | 167 | } else { |
Kazuki Yamamoto |
30:d5c18e268866 | 168 | screen = SCREEN1_BASE; |
Kazuki Yamamoto |
30:d5c18e268866 | 169 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 170 | // line--; |
Kazuki Yamamoto |
30:d5c18e268866 | 171 | // line*=RAMLINE_LENGTH; |
k4zuki | 14:812873f3a933 | 172 | |
Kazuki Yamamoto |
30:d5c18e268866 | 173 | int address = screen + line * RAMLINE_LENGTH; |
Kazuki Yamamoto |
30:d5c18e268866 | 174 | _ram_writeStatus(SEQUENTIAL_MODE); |
Kazuki Yamamoto |
30:d5c18e268866 | 175 | _ram_prepareCommand(WRITE, address); |
Kazuki Yamamoto |
30:d5c18e268866 | 176 | for (int i = 0; i < length; i++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 177 | _spi.write((_modeflag << 7) | (_comflag << 6) | (_clearflag << 5)); |
Kazuki Yamamoto |
30:d5c18e268866 | 178 | _spi.write((uint8_t)lcd_line[line]); |
Kazuki Yamamoto |
30:d5c18e268866 | 179 | for (int j = 0; j < LINE_LENGTH; j++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 180 | _spi.write(*data); |
Kazuki Yamamoto |
30:d5c18e268866 | 181 | data++; |
k4zuki | 4:844693a617dc | 182 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 183 | line++; |
Kazuki Yamamoto |
30:d5c18e268866 | 184 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 185 | _ram_deselect(); |
Kazuki Yamamoto |
30:d5c18e268866 | 186 | _ram_writeStatus(BYTE_MODE); |
Kazuki Yamamoto |
30:d5c18e268866 | 187 | // ram_write(address,data,50*length); |
k4zuki | 4:844693a617dc | 188 | } |
k4zuki | 4:844693a617dc | 189 | |
k4zuki | 9:33d5888d1fb9 | 190 | /** copies whole data in screen into LCD |
k4zuki | 9:33d5888d1fb9 | 191 | */ |
Kazuki Yamamoto |
30:d5c18e268866 | 192 | void AkiSpiLcd::ram2lcd(int startline, int length, int screen) { |
Kazuki Yamamoto |
30:d5c18e268866 | 193 | _modeflag = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 194 | _clearflag = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 195 | screen &= 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 196 | if (screen == SCREEN0) { |
Kazuki Yamamoto |
30:d5c18e268866 | 197 | screen = SCREEN0_BASE; |
Kazuki Yamamoto |
30:d5c18e268866 | 198 | } else { |
Kazuki Yamamoto |
30:d5c18e268866 | 199 | screen = SCREEN1_BASE; |
Kazuki Yamamoto |
30:d5c18e268866 | 200 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 201 | if (startline == 0) |
Kazuki Yamamoto |
30:d5c18e268866 | 202 | startline = 1; |
k4zuki | 14:812873f3a933 | 203 | |
Kazuki Yamamoto |
30:d5c18e268866 | 204 | if (length > 0) { |
k4zuki | 14:812873f3a933 | 205 | |
Kazuki Yamamoto |
30:d5c18e268866 | 206 | int address = screen + startline * RAMLINE_LENGTH; |
Kazuki Yamamoto |
30:d5c18e268866 | 207 | // uint8_t dummy[RAMLINE_LENGTH+2]; |
Kazuki Yamamoto |
30:d5c18e268866 | 208 | int dummy = 0; |
k4zuki | 4:844693a617dc | 209 | |
Kazuki Yamamoto |
30:d5c18e268866 | 210 | _ram_writeStatus(SEQUENTIAL_MODE); |
Kazuki Yamamoto |
30:d5c18e268866 | 211 | _ram_prepareCommand(READ, address); |
Kazuki Yamamoto |
30:d5c18e268866 | 212 | _spi.format(16, 0); |
Kazuki Yamamoto |
30:d5c18e268866 | 213 | _csl = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 214 | // wait_us(5); |
k4zuki | 18:e3f59b23dd3a | 215 | |
Kazuki Yamamoto |
30:d5c18e268866 | 216 | for (int j = 0; j <= length; j++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 217 | // _csl=1; |
Kazuki Yamamoto |
30:d5c18e268866 | 218 | for (int k = 0; k < RAMLINE_LENGTH; k += 4) { |
Kazuki Yamamoto |
30:d5c18e268866 | 219 | dummy = _spi.write(0x55de); |
Kazuki Yamamoto |
30:d5c18e268866 | 220 | // dummy = _spi.write(0xde); |
Kazuki Yamamoto |
30:d5c18e268866 | 221 | dummy = _spi.write(0xadaa); |
Kazuki Yamamoto |
30:d5c18e268866 | 222 | // dummy = _spi.write(0xbe); |
Kazuki Yamamoto |
30:d5c18e268866 | 223 | // dummy = _spi.write(0xaf); |
Kazuki Yamamoto |
30:d5c18e268866 | 224 | // dummy = _spi.write(0xaa); |
Kazuki Yamamoto |
30:d5c18e268866 | 225 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 226 | // _csl = 0; |
k4zuki | 4:844693a617dc | 227 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 228 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 229 | _spi.write(0xdead); |
Kazuki Yamamoto |
30:d5c18e268866 | 230 | // wait_us(5); |
Kazuki Yamamoto |
30:d5c18e268866 | 231 | _csl = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 232 | // _spi.write(0xde); |
Kazuki Yamamoto |
30:d5c18e268866 | 233 | // _spi.write(0xad); |
Kazuki Yamamoto |
30:d5c18e268866 | 234 | _ram_deselect(); |
Kazuki Yamamoto |
30:d5c18e268866 | 235 | _spi.format(8, 0); |
Kazuki Yamamoto |
30:d5c18e268866 | 236 | cominvert(); |
k4zuki | 4:844693a617dc | 237 | } |
k4zuki | 9:33d5888d1fb9 | 238 | |
k4zuki | 16:fa277cbcc890 | 239 | /** copies whole data in screen into LCD |
k4zuki | 16:fa277cbcc890 | 240 | */ |
Kazuki Yamamoto |
30:d5c18e268866 | 241 | void AkiSpiLcd::ram2lcd(int screen) { |
Kazuki Yamamoto |
30:d5c18e268866 | 242 | uint8_t lineBuffer[RAMLINE_LENGTH]; |
Kazuki Yamamoto |
30:d5c18e268866 | 243 | for (int y = 0; y < 240; y++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 244 | ram_read(y * RAMLINE_LENGTH + 2, lineBuffer, RAMLINE_LENGTH); |
Kazuki Yamamoto |
30:d5c18e268866 | 245 | directUpdateSingle(y + 1, lineBuffer); |
Kazuki Yamamoto |
30:d5c18e268866 | 246 | } |
k4zuki | 16:fa277cbcc890 | 247 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 248 | uint8_t AkiSpiLcd::ram_read(int address) { |
Kazuki Yamamoto |
30:d5c18e268866 | 249 | _ram_prepareCommand(READ, address); |
Kazuki Yamamoto |
30:d5c18e268866 | 250 | int result = _spi.write(0); |
Kazuki Yamamoto |
30:d5c18e268866 | 251 | _ram_deselect(); |
Kazuki Yamamoto |
30:d5c18e268866 | 252 | return (uint8_t)result; |
k4zuki | 9:33d5888d1fb9 | 253 | } |
k4zuki | 9:33d5888d1fb9 | 254 | |
Kazuki Yamamoto |
30:d5c18e268866 | 255 | void AkiSpiLcd::ram_read(int address, uint8_t *buffer, int count) { |
Kazuki Yamamoto |
30:d5c18e268866 | 256 | _ram_writeStatus(SEQUENTIAL_MODE); |
Kazuki Yamamoto |
30:d5c18e268866 | 257 | _ram_prepareCommand(READ, address); |
Kazuki Yamamoto |
30:d5c18e268866 | 258 | for (int i = 0; i < count; i++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 259 | buffer[i] = _spi.write(0x00); |
Kazuki Yamamoto |
30:d5c18e268866 | 260 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 261 | _ram_deselect(); |
Kazuki Yamamoto |
30:d5c18e268866 | 262 | _ram_writeStatus(BYTE_MODE); |
k4zuki | 9:33d5888d1fb9 | 263 | } |
k4zuki | 9:33d5888d1fb9 | 264 | |
Kazuki Yamamoto |
30:d5c18e268866 | 265 | void AkiSpiLcd::ram_write(int address, uint8_t byte) { |
Kazuki Yamamoto |
30:d5c18e268866 | 266 | _ram_prepareCommand(WRITE, address); |
Kazuki Yamamoto |
30:d5c18e268866 | 267 | _spi.write(byte); |
Kazuki Yamamoto |
30:d5c18e268866 | 268 | _ram_deselect(); |
k4zuki | 9:33d5888d1fb9 | 269 | } |
k4zuki | 9:33d5888d1fb9 | 270 | |
Kazuki Yamamoto |
30:d5c18e268866 | 271 | void AkiSpiLcd::ram_write(int address, uint8_t *buffer, int count) { |
Kazuki Yamamoto |
30:d5c18e268866 | 272 | _ram_writeStatus(SEQUENTIAL_MODE); |
Kazuki Yamamoto |
30:d5c18e268866 | 273 | _ram_prepareCommand(WRITE, address); |
Kazuki Yamamoto |
30:d5c18e268866 | 274 | for (int i = 0; i < count; i++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 275 | _spi.write(buffer[i]); |
Kazuki Yamamoto |
30:d5c18e268866 | 276 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 277 | _ram_deselect(); |
Kazuki Yamamoto |
30:d5c18e268866 | 278 | _ram_writeStatus(BYTE_MODE); |
k4zuki | 9:33d5888d1fb9 | 279 | } |
k4zuki | 9:33d5888d1fb9 | 280 | |
Kazuki Yamamoto |
30:d5c18e268866 | 281 | uint8_t AkiSpiLcd::ram_readStatus() { |
Kazuki Yamamoto |
30:d5c18e268866 | 282 | _ram_select(); |
Kazuki Yamamoto |
30:d5c18e268866 | 283 | _spi.write(READ_STATUS); |
Kazuki Yamamoto |
30:d5c18e268866 | 284 | uint8_t result = (uint8_t)_spi.write(0); |
Kazuki Yamamoto |
30:d5c18e268866 | 285 | _ram_deselect(); |
Kazuki Yamamoto |
30:d5c18e268866 | 286 | return result; |
k4zuki | 9:33d5888d1fb9 | 287 | } |
k4zuki | 9:33d5888d1fb9 | 288 | |
Kazuki Yamamoto |
30:d5c18e268866 | 289 | void AkiSpiLcd::_ram_writeStatus(uint8_t status) { |
Kazuki Yamamoto |
30:d5c18e268866 | 290 | _ram_select(); |
Kazuki Yamamoto |
30:d5c18e268866 | 291 | _spi.write(WRITE_STATUS); |
Kazuki Yamamoto |
30:d5c18e268866 | 292 | _spi.write(status); |
Kazuki Yamamoto |
30:d5c18e268866 | 293 | _ram_deselect(); |
k4zuki | 9:33d5888d1fb9 | 294 | } |
k4zuki | 9:33d5888d1fb9 | 295 | |
Kazuki Yamamoto |
30:d5c18e268866 | 296 | void AkiSpiLcd::_ram_prepareCommand(uint8_t command, int address) { |
Kazuki Yamamoto |
30:d5c18e268866 | 297 | _ram_select(); |
Kazuki Yamamoto |
30:d5c18e268866 | 298 | _spi.write(command); |
Kazuki Yamamoto |
30:d5c18e268866 | 299 | _spi.write(address >> 8); |
Kazuki Yamamoto |
30:d5c18e268866 | 300 | _spi.write(address & 0xFF); |
k4zuki | 9:33d5888d1fb9 | 301 | } |
k4zuki | 9:33d5888d1fb9 | 302 | |
Kazuki Yamamoto |
30:d5c18e268866 | 303 | void AkiSpiLcd::_ram_select() { _csr = 0; } |
Kazuki Yamamoto |
30:d5c18e268866 | 304 | |
Kazuki Yamamoto |
30:d5c18e268866 | 305 | void AkiSpiLcd::_ram_deselect() { _csr = 1; } |
k4zuki | 14:812873f3a933 | 306 | |
Kazuki Yamamoto |
30:d5c18e268866 | 307 | void AkiSpiLcd::_cls_ram(int address) { |
Kazuki Yamamoto |
30:d5c18e268866 | 308 | _modeflag = 1; |
Kazuki Yamamoto |
30:d5c18e268866 | 309 | _clearflag = 0; |
Kazuki Yamamoto |
30:d5c18e268866 | 310 | _ram_writeStatus(SEQUENTIAL_MODE); |
Kazuki Yamamoto |
30:d5c18e268866 | 311 | _ram_prepareCommand(WRITE, address); |
Kazuki Yamamoto |
30:d5c18e268866 | 312 | for (int i = 1; i <= (240); i++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 313 | _spi.write((_modeflag << 7) | (_comflag << 6) | (_clearflag << 5)); |
Kazuki Yamamoto |
30:d5c18e268866 | 314 | _spi.write((uint8_t)lcd_line[i]); |
Kazuki Yamamoto |
30:d5c18e268866 | 315 | for (int j = 0; j < 50; j++) { |
Kazuki Yamamoto |
30:d5c18e268866 | 316 | _spi.write(0x00); |
k4zuki | 14:812873f3a933 | 317 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 318 | } |
Kazuki Yamamoto |
30:d5c18e268866 | 319 | _ram_deselect(); |
Kazuki Yamamoto |
30:d5c18e268866 | 320 | _ram_writeStatus(BYTE_MODE); |
k4zuki | 9:33d5888d1fb9 | 321 | } |