Basic library for SHARP LCD LS027B4DH01/LS027B7DH01
Dependents: AkiSpiLcd_demo AkiSpiLcd_demo2 LCDRAM AkiSpiLcd_example
AkiSpiLcd.cpp@17:3b47e5044518, 2015-01-23 (annotated)
- Committer:
- m_wakayama
- Date:
- Fri Jan 23 11:39:54 2015 +0000
- Revision:
- 17:3b47e5044518
- Parent:
- 16:fa277cbcc890
- Child:
- 18:e3f59b23dd3a
screen base address change; remove RAMLINE_BASE; 0x3000 -> 0x4000 (SCREEN1_BASE)
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
k4zuki | 1:57de84d2025c | 1 | /** this is for SHARP LCD LS027B4DH01 |
k4zuki | 2:01979b296ab5 | 2 | * by Kazuki Yamamoto, or _K4ZUKI_ |
k4zuki | 0:b3c8fdd01601 | 3 | */ |
k4zuki | 0:b3c8fdd01601 | 4 | |
k4zuki | 0:b3c8fdd01601 | 5 | #include "mbed.h" |
k4zuki | 0:b3c8fdd01601 | 6 | #include "AkiSpiLcd.h" |
k4zuki | 10:eed99ef09e63 | 7 | //#include "Ser23K256.h" |
k4zuki | 11:16647ecd67ce | 8 | extern const uint8_t lcd_line[]; |
k4zuki | 0:b3c8fdd01601 | 9 | |
k4zuki | 4:844693a617dc | 10 | AkiSpiLcd::AkiSpiLcd(PinName mosi, PinName miso, PinName sck, PinName csl, PinName csr) |
k4zuki | 4:844693a617dc | 11 | :_spi(mosi, miso, sck), _csl(csl), _csr(csr) |
k4zuki | 0:b3c8fdd01601 | 12 | { |
k4zuki | 3:f835b8daf9a0 | 13 | _csl=0; |
k4zuki | 4:844693a617dc | 14 | _csr=1; |
k4zuki | 0:b3c8fdd01601 | 15 | _spi.format(8,0); |
k4zuki | 15:704dd6e688ab | 16 | _spi.frequency(10000000); |
k4zuki | 14:812873f3a933 | 17 | _comflag = _modeflag = _clearflag = 0; |
k4zuki | 12:30b31d87a30e | 18 | |
k4zuki | 14:812873f3a933 | 19 | // if(_csr != NULL) { |
k4zuki | 14:812873f3a933 | 20 | // uint8_t data[240]; |
k4zuki | 14:812873f3a933 | 21 | // data[0]=0; |
k4zuki | 14:812873f3a933 | 22 | // for(int i=1; i<=240; i++) { |
k4zuki | 14:812873f3a933 | 23 | // data[i]=(uint8_t)lcd_line[i]; |
k4zuki | 14:812873f3a933 | 24 | // } |
k4zuki | 14:812873f3a933 | 25 | // ram_write(RAMLINE_BASE,data,240); |
k4zuki | 14:812873f3a933 | 26 | // } |
k4zuki | 14:812873f3a933 | 27 | // uint8_t buffer[4] = {0,0,0,0}; |
k4zuki | 14:812873f3a933 | 28 | // ram_write(RAMMODE_BASE,buffer,4); |
k4zuki | 5:7061ce47a359 | 29 | |
k4zuki | 0:b3c8fdd01601 | 30 | } |
k4zuki | 0:b3c8fdd01601 | 31 | |
k4zuki | 0:b3c8fdd01601 | 32 | void AkiSpiLcd::cls() |
k4zuki | 0:b3c8fdd01601 | 33 | { |
k4zuki | 14:812873f3a933 | 34 | _modeflag=0; |
k4zuki | 14:812873f3a933 | 35 | _clearflag=1; |
k4zuki | 0:b3c8fdd01601 | 36 | |
k4zuki | 3:f835b8daf9a0 | 37 | _csl=1; |
k4zuki | 0:b3c8fdd01601 | 38 | wait_us(5); |
k4zuki | 0:b3c8fdd01601 | 39 | |
k4zuki | 14:812873f3a933 | 40 | _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); |
k4zuki | 0:b3c8fdd01601 | 41 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 42 | |
k4zuki | 0:b3c8fdd01601 | 43 | wait_us(5); |
k4zuki | 3:f835b8daf9a0 | 44 | _csl=0; |
k4zuki | 0:b3c8fdd01601 | 45 | |
k4zuki | 14:812873f3a933 | 46 | cominvert(); |
k4zuki | 0:b3c8fdd01601 | 47 | } |
k4zuki | 0:b3c8fdd01601 | 48 | |
k4zuki | 12:30b31d87a30e | 49 | void AkiSpiLcd::cls_ram( int screen ) |
k4zuki | 12:30b31d87a30e | 50 | { |
k4zuki | 12:30b31d87a30e | 51 | screen &=1; |
k4zuki | 12:30b31d87a30e | 52 | if(screen==SCREEN0) { |
k4zuki | 14:812873f3a933 | 53 | _cls_ram( SCREEN0_BASE ); |
k4zuki | 12:30b31d87a30e | 54 | } else { |
k4zuki | 14:812873f3a933 | 55 | _cls_ram( SCREEN1_BASE ); |
k4zuki | 12:30b31d87a30e | 56 | } |
k4zuki | 12:30b31d87a30e | 57 | } |
k4zuki | 12:30b31d87a30e | 58 | |
k4zuki | 12:30b31d87a30e | 59 | |
k4zuki | 3:f835b8daf9a0 | 60 | void AkiSpiLcd::directUpdateSingle(int line, uint8_t* data) |
k4zuki | 0:b3c8fdd01601 | 61 | { |
k4zuki | 14:812873f3a933 | 62 | _modeflag=1; |
k4zuki | 14:812873f3a933 | 63 | _clearflag=0; |
k4zuki | 0:b3c8fdd01601 | 64 | |
k4zuki | 3:f835b8daf9a0 | 65 | _csl=1; |
k4zuki | 11:16647ecd67ce | 66 | wait_us(1); |
k4zuki | 0:b3c8fdd01601 | 67 | |
k4zuki | 14:812873f3a933 | 68 | if(line ==0)line=1; |
k4zuki | 14:812873f3a933 | 69 | |
k4zuki | 14:812873f3a933 | 70 | _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); |
k4zuki | 12:30b31d87a30e | 71 | _spi.write((uint8_t)lcd_line[line]); |
k4zuki | 12:30b31d87a30e | 72 | |
k4zuki | 0:b3c8fdd01601 | 73 | for(int i=0; i<50; i++) { |
k4zuki | 0:b3c8fdd01601 | 74 | _spi.write( *(data+i) ); |
k4zuki | 0:b3c8fdd01601 | 75 | } |
k4zuki | 0:b3c8fdd01601 | 76 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 77 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 78 | |
k4zuki | 0:b3c8fdd01601 | 79 | wait_us(5); |
k4zuki | 3:f835b8daf9a0 | 80 | _csl=0; |
k4zuki | 0:b3c8fdd01601 | 81 | |
k4zuki | 14:812873f3a933 | 82 | cominvert(); |
k4zuki | 0:b3c8fdd01601 | 83 | } |
k4zuki | 0:b3c8fdd01601 | 84 | |
k4zuki | 3:f835b8daf9a0 | 85 | void AkiSpiLcd::directUpdateMulti(int line, int length, uint8_t* data) |
k4zuki | 0:b3c8fdd01601 | 86 | { |
k4zuki | 14:812873f3a933 | 87 | _modeflag=1; |
k4zuki | 14:812873f3a933 | 88 | _clearflag=0; |
k4zuki | 14:812873f3a933 | 89 | |
k4zuki | 14:812873f3a933 | 90 | if(line==0)line=1; |
k4zuki | 0:b3c8fdd01601 | 91 | |
k4zuki | 0:b3c8fdd01601 | 92 | if(length>0) { |
k4zuki | 3:f835b8daf9a0 | 93 | _csl=1; |
k4zuki | 0:b3c8fdd01601 | 94 | wait_us(5); |
k4zuki | 14:812873f3a933 | 95 | for (int j=1; j<=length; j++) { |
k4zuki | 14:812873f3a933 | 96 | _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); |
k4zuki | 11:16647ecd67ce | 97 | _spi.write((uint8_t)lcd_line[line]); |
k4zuki | 0:b3c8fdd01601 | 98 | for(int i=0; i<50; i++) { |
k4zuki | 0:b3c8fdd01601 | 99 | _spi.write( *(data+(50*j+i)) );//hogepic[50*j+i] |
k4zuki | 0:b3c8fdd01601 | 100 | } |
k4zuki | 0:b3c8fdd01601 | 101 | line+=1; |
k4zuki | 0:b3c8fdd01601 | 102 | } |
k4zuki | 0:b3c8fdd01601 | 103 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 104 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 105 | wait_us(5); |
k4zuki | 3:f835b8daf9a0 | 106 | _csl=0; |
k4zuki | 0:b3c8fdd01601 | 107 | } |
k4zuki | 14:812873f3a933 | 108 | cominvert(); |
k4zuki | 0:b3c8fdd01601 | 109 | } |
k4zuki | 0:b3c8fdd01601 | 110 | |
k4zuki | 0:b3c8fdd01601 | 111 | void AkiSpiLcd::cominvert() |
k4zuki | 0:b3c8fdd01601 | 112 | { |
k4zuki | 14:812873f3a933 | 113 | _modeflag=0; |
k4zuki | 14:812873f3a933 | 114 | _clearflag=0; |
k4zuki | 0:b3c8fdd01601 | 115 | |
k4zuki | 3:f835b8daf9a0 | 116 | _csl=1; |
k4zuki | 0:b3c8fdd01601 | 117 | |
k4zuki | 14:812873f3a933 | 118 | _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); |
k4zuki | 0:b3c8fdd01601 | 119 | _spi.write(0x00); |
k4zuki | 15:704dd6e688ab | 120 | // wait_us(5); |
k4zuki | 3:f835b8daf9a0 | 121 | _csl=0; |
k4zuki | 14:812873f3a933 | 122 | if(_comflag == 0) { |
k4zuki | 14:812873f3a933 | 123 | _comflag = 1; |
k4zuki | 0:b3c8fdd01601 | 124 | } else { |
k4zuki | 14:812873f3a933 | 125 | _comflag = 0; |
k4zuki | 0:b3c8fdd01601 | 126 | } |
k4zuki | 0:b3c8fdd01601 | 127 | } |
k4zuki | 14:812873f3a933 | 128 | |
k4zuki | 14:812873f3a933 | 129 | /** Reads single line (16 + 400 bits = 52 bytes) from a screen |
k4zuki | 3:f835b8daf9a0 | 130 | */ |
k4zuki | 14:812873f3a933 | 131 | void AkiSpiLcd::ramReadSingleLine(int line, uint8_t* buffer, int screen) |
k4zuki | 9:33d5888d1fb9 | 132 | { |
k4zuki | 4:844693a617dc | 133 | screen &=1; |
k4zuki | 9:33d5888d1fb9 | 134 | if(screen==SCREEN0) { |
k4zuki | 7:0c85f23a6568 | 135 | screen=SCREEN0_BASE; |
k4zuki | 9:33d5888d1fb9 | 136 | } else { |
k4zuki | 7:0c85f23a6568 | 137 | screen=SCREEN1_BASE; |
k4zuki | 7:0c85f23a6568 | 138 | } |
k4zuki | 14:812873f3a933 | 139 | |
k4zuki | 14:812873f3a933 | 140 | line*=RAMLINE_LENGTH; |
k4zuki | 4:844693a617dc | 141 | int address=screen+line; |
k4zuki | 14:812873f3a933 | 142 | ram_read(address,buffer,RAMLINE_LENGTH); |
k4zuki | 4:844693a617dc | 143 | } |
k4zuki | 4:844693a617dc | 144 | |
k4zuki | 14:812873f3a933 | 145 | /** Reads multi lines( (16 + 400) x N bits = 52 x N bytes) from a screen |
k4zuki | 9:33d5888d1fb9 | 146 | */ |
k4zuki | 14:812873f3a933 | 147 | void AkiSpiLcd::ramReadMultiLine(int line, int length, uint8_t* buffer, int screen) |
k4zuki | 9:33d5888d1fb9 | 148 | { |
k4zuki | 4:844693a617dc | 149 | screen &=1; |
k4zuki | 9:33d5888d1fb9 | 150 | if(screen==SCREEN0) { |
k4zuki | 7:0c85f23a6568 | 151 | screen=SCREEN0_BASE; |
k4zuki | 9:33d5888d1fb9 | 152 | } else { |
k4zuki | 7:0c85f23a6568 | 153 | screen=SCREEN1_BASE; |
k4zuki | 7:0c85f23a6568 | 154 | } |
k4zuki | 14:812873f3a933 | 155 | line*=RAMLINE_LENGTH; |
k4zuki | 4:844693a617dc | 156 | int address=screen+line; |
k4zuki | 14:812873f3a933 | 157 | ram_read(address,buffer,RAMLINE_LENGTH*length); |
k4zuki | 4:844693a617dc | 158 | } |
k4zuki | 9:33d5888d1fb9 | 159 | |
k4zuki | 9:33d5888d1fb9 | 160 | /** Writes single line (400 bits = 50 bytes) into a screen |
k4zuki | 9:33d5888d1fb9 | 161 | */ |
k4zuki | 14:812873f3a933 | 162 | void AkiSpiLcd::ramWriteSingleLine(int line, uint8_t* data, int screen) |
k4zuki | 9:33d5888d1fb9 | 163 | { |
k4zuki | 4:844693a617dc | 164 | screen &=1; |
k4zuki | 9:33d5888d1fb9 | 165 | if(screen==SCREEN0) { |
k4zuki | 7:0c85f23a6568 | 166 | screen=SCREEN0_BASE; |
k4zuki | 9:33d5888d1fb9 | 167 | } else { |
k4zuki | 7:0c85f23a6568 | 168 | screen=SCREEN1_BASE; |
k4zuki | 7:0c85f23a6568 | 169 | } |
k4zuki | 14:812873f3a933 | 170 | line--; |
k4zuki | 14:812873f3a933 | 171 | line*=RAMLINE_LENGTH; |
k4zuki | 4:844693a617dc | 172 | int address=screen+line; |
k4zuki | 14:812873f3a933 | 173 | ram_write(address,data,50); |
k4zuki | 14:812873f3a933 | 174 | } |
k4zuki | 14:812873f3a933 | 175 | |
k4zuki | 14:812873f3a933 | 176 | /** Writes multi lines(400 x N bits = 50 x N bytes) into a screen |
k4zuki | 14:812873f3a933 | 177 | */ |
k4zuki | 14:812873f3a933 | 178 | void AkiSpiLcd::ramWriteMultiLine(int line, int length, uint8_t* data, int screen) |
k4zuki | 14:812873f3a933 | 179 | { |
k4zuki | 14:812873f3a933 | 180 | _modeflag=1; |
k4zuki | 14:812873f3a933 | 181 | _clearflag=0; |
k4zuki | 14:812873f3a933 | 182 | screen &=1; |
k4zuki | 14:812873f3a933 | 183 | if(screen==SCREEN0) { |
k4zuki | 14:812873f3a933 | 184 | screen=SCREEN0_BASE; |
k4zuki | 14:812873f3a933 | 185 | } else { |
k4zuki | 14:812873f3a933 | 186 | screen=SCREEN1_BASE; |
k4zuki | 14:812873f3a933 | 187 | } |
k4zuki | 14:812873f3a933 | 188 | // line--; |
k4zuki | 14:812873f3a933 | 189 | // line*=RAMLINE_LENGTH; |
k4zuki | 14:812873f3a933 | 190 | |
k4zuki | 14:812873f3a933 | 191 | int address=screen+line*RAMLINE_LENGTH; |
k4zuki | 14:812873f3a933 | 192 | _ram_writeStatus(SEQUENTIAL_MODE); |
k4zuki | 14:812873f3a933 | 193 | _ram_prepareCommand(WRITE, address); |
k4zuki | 14:812873f3a933 | 194 | for(int i=0; i<length; i++) { |
k4zuki | 14:812873f3a933 | 195 | _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); |
k4zuki | 14:812873f3a933 | 196 | _spi.write( (uint8_t)lcd_line[line] ); |
k4zuki | 14:812873f3a933 | 197 | for(int j = 0; j < LINE_LENGTH; j++) { |
k4zuki | 14:812873f3a933 | 198 | _spi.write(*data); |
k4zuki | 14:812873f3a933 | 199 | data++; |
k4zuki | 4:844693a617dc | 200 | } |
k4zuki | 14:812873f3a933 | 201 | line++; |
k4zuki | 4:844693a617dc | 202 | } |
k4zuki | 14:812873f3a933 | 203 | _ram_deselect(); |
k4zuki | 14:812873f3a933 | 204 | _ram_writeStatus(BYTE_MODE); |
k4zuki | 14:812873f3a933 | 205 | // ram_write(address,data,50*length); |
k4zuki | 4:844693a617dc | 206 | } |
k4zuki | 4:844693a617dc | 207 | |
k4zuki | 9:33d5888d1fb9 | 208 | /** copies whole data in screen into LCD |
k4zuki | 9:33d5888d1fb9 | 209 | */ |
k4zuki | 9:33d5888d1fb9 | 210 | void AkiSpiLcd::ram2lcd(int startline, int length, int screen) |
k4zuki | 9:33d5888d1fb9 | 211 | { |
k4zuki | 14:812873f3a933 | 212 | _modeflag=1; |
k4zuki | 14:812873f3a933 | 213 | _clearflag=0; |
k4zuki | 4:844693a617dc | 214 | screen &=1; |
k4zuki | 9:33d5888d1fb9 | 215 | if(screen==SCREEN0) { |
k4zuki | 7:0c85f23a6568 | 216 | screen=SCREEN0_BASE; |
k4zuki | 9:33d5888d1fb9 | 217 | } else { |
k4zuki | 7:0c85f23a6568 | 218 | screen=SCREEN1_BASE; |
k4zuki | 7:0c85f23a6568 | 219 | } |
k4zuki | 14:812873f3a933 | 220 | if(startline==0)startline=1; |
k4zuki | 14:812873f3a933 | 221 | |
k4zuki | 14:812873f3a933 | 222 | if(length>0) { |
k4zuki | 14:812873f3a933 | 223 | |
k4zuki | 14:812873f3a933 | 224 | int address=screen+startline*RAMLINE_LENGTH; |
k4zuki | 14:812873f3a933 | 225 | // uint8_t dummy[RAMLINE_LENGTH+2]; |
k4zuki | 15:704dd6e688ab | 226 | int dummy=0; |
k4zuki | 4:844693a617dc | 227 | |
k4zuki | 14:812873f3a933 | 228 | _ram_writeStatus(SEQUENTIAL_MODE); |
k4zuki | 14:812873f3a933 | 229 | _ram_prepareCommand(READ,address); |
k4zuki | 15:704dd6e688ab | 230 | _spi.format(16,0); |
k4zuki | 14:812873f3a933 | 231 | _csl=1; |
k4zuki | 15:704dd6e688ab | 232 | //wait_us(5); |
k4zuki | 15:704dd6e688ab | 233 | |
k4zuki | 14:812873f3a933 | 234 | for(int j = 0; j <= length; j++) { |
k4zuki | 14:812873f3a933 | 235 | // _csl=1; |
k4zuki | 14:812873f3a933 | 236 | for(int k = 0; k < RAMLINE_LENGTH; k+=4) { |
k4zuki | 15:704dd6e688ab | 237 | dummy = _spi.write(0x55de); |
k4zuki | 15:704dd6e688ab | 238 | // dummy = _spi.write(0xde); |
k4zuki | 15:704dd6e688ab | 239 | dummy = _spi.write(0xadaa); |
k4zuki | 14:812873f3a933 | 240 | // dummy = _spi.write(0xbe); |
k4zuki | 14:812873f3a933 | 241 | // dummy = _spi.write(0xaf); |
k4zuki | 15:704dd6e688ab | 242 | // dummy = _spi.write(0xaa); |
k4zuki | 14:812873f3a933 | 243 | } |
k4zuki | 14:812873f3a933 | 244 | // _csl = 0; |
k4zuki | 4:844693a617dc | 245 | } |
k4zuki | 4:844693a617dc | 246 | } |
k4zuki | 15:704dd6e688ab | 247 | _spi.write(0xdead); |
k4zuki | 15:704dd6e688ab | 248 | //wait_us(5); |
k4zuki | 14:812873f3a933 | 249 | _csl = 0; |
k4zuki | 14:812873f3a933 | 250 | // _spi.write(0xde); |
k4zuki | 14:812873f3a933 | 251 | // _spi.write(0xad); |
k4zuki | 14:812873f3a933 | 252 | _ram_deselect(); |
k4zuki | 15:704dd6e688ab | 253 | _spi.format(8,0); |
k4zuki | 14:812873f3a933 | 254 | cominvert(); |
k4zuki | 4:844693a617dc | 255 | } |
k4zuki | 9:33d5888d1fb9 | 256 | |
k4zuki | 16:fa277cbcc890 | 257 | /** copies whole data in screen into LCD |
k4zuki | 16:fa277cbcc890 | 258 | */ |
k4zuki | 16:fa277cbcc890 | 259 | void AkiSpiLcd::ram2lcd(int screen) |
k4zuki | 16:fa277cbcc890 | 260 | { |
k4zuki | 16:fa277cbcc890 | 261 | uint8_t lineBuffer[RAMLINE_LENGTH]; |
k4zuki | 16:fa277cbcc890 | 262 | for (int y = 0; y < 240; y++) { |
k4zuki | 16:fa277cbcc890 | 263 | ram_read(y * RAMLINE_LENGTH+2,lineBuffer,RAMLINE_LENGTH); |
k4zuki | 16:fa277cbcc890 | 264 | directUpdateSingle(y + 1,lineBuffer); |
k4zuki | 16:fa277cbcc890 | 265 | } |
k4zuki | 16:fa277cbcc890 | 266 | } |
k4zuki | 9:33d5888d1fb9 | 267 | uint8_t AkiSpiLcd::ram_read(int address) |
k4zuki | 9:33d5888d1fb9 | 268 | { |
k4zuki | 14:812873f3a933 | 269 | _ram_prepareCommand(READ, address); |
k4zuki | 9:33d5888d1fb9 | 270 | int result = _spi.write(0); |
k4zuki | 14:812873f3a933 | 271 | _ram_deselect(); |
k4zuki | 9:33d5888d1fb9 | 272 | return (uint8_t) result; |
k4zuki | 9:33d5888d1fb9 | 273 | } |
k4zuki | 9:33d5888d1fb9 | 274 | |
k4zuki | 9:33d5888d1fb9 | 275 | void AkiSpiLcd::ram_read(int address, uint8_t * buffer, int count) |
k4zuki | 9:33d5888d1fb9 | 276 | { |
k4zuki | 14:812873f3a933 | 277 | _ram_writeStatus(SEQUENTIAL_MODE); |
k4zuki | 14:812873f3a933 | 278 | _ram_prepareCommand(READ, address); |
k4zuki | 9:33d5888d1fb9 | 279 | for (int i = 0; i < count; i++) { |
m_wakayama | 17:3b47e5044518 | 280 | buffer[i] = _spi.write(0x00); |
m_wakayama | 17:3b47e5044518 | 281 | |
k4zuki | 9:33d5888d1fb9 | 282 | } |
k4zuki | 14:812873f3a933 | 283 | _ram_deselect(); |
k4zuki | 14:812873f3a933 | 284 | _ram_writeStatus(BYTE_MODE); |
k4zuki | 9:33d5888d1fb9 | 285 | } |
k4zuki | 9:33d5888d1fb9 | 286 | |
k4zuki | 9:33d5888d1fb9 | 287 | void AkiSpiLcd::ram_write(int address, uint8_t byte) |
k4zuki | 9:33d5888d1fb9 | 288 | { |
k4zuki | 14:812873f3a933 | 289 | _ram_prepareCommand(WRITE, address); |
k4zuki | 9:33d5888d1fb9 | 290 | _spi.write(byte); |
k4zuki | 14:812873f3a933 | 291 | _ram_deselect(); |
k4zuki | 9:33d5888d1fb9 | 292 | } |
k4zuki | 9:33d5888d1fb9 | 293 | |
k4zuki | 9:33d5888d1fb9 | 294 | void AkiSpiLcd::ram_write(int address, uint8_t * buffer, int count) |
k4zuki | 9:33d5888d1fb9 | 295 | { |
k4zuki | 14:812873f3a933 | 296 | _ram_writeStatus(SEQUENTIAL_MODE); |
k4zuki | 14:812873f3a933 | 297 | _ram_prepareCommand(WRITE, address); |
k4zuki | 9:33d5888d1fb9 | 298 | for (int i = 0; i < count; i++) { |
k4zuki | 9:33d5888d1fb9 | 299 | _spi.write(buffer[i]); |
k4zuki | 9:33d5888d1fb9 | 300 | } |
k4zuki | 14:812873f3a933 | 301 | _ram_deselect(); |
k4zuki | 14:812873f3a933 | 302 | _ram_writeStatus(BYTE_MODE); |
k4zuki | 9:33d5888d1fb9 | 303 | } |
k4zuki | 9:33d5888d1fb9 | 304 | |
k4zuki | 9:33d5888d1fb9 | 305 | uint8_t AkiSpiLcd::ram_readStatus() |
k4zuki | 9:33d5888d1fb9 | 306 | { |
k4zuki | 14:812873f3a933 | 307 | _ram_select(); |
k4zuki | 9:33d5888d1fb9 | 308 | _spi.write(READ_STATUS); |
k4zuki | 9:33d5888d1fb9 | 309 | uint8_t result = (uint8_t) _spi.write(0); |
k4zuki | 14:812873f3a933 | 310 | _ram_deselect(); |
k4zuki | 9:33d5888d1fb9 | 311 | return result; |
k4zuki | 9:33d5888d1fb9 | 312 | } |
k4zuki | 9:33d5888d1fb9 | 313 | |
k4zuki | 14:812873f3a933 | 314 | void AkiSpiLcd::_ram_writeStatus(uint8_t status) |
k4zuki | 9:33d5888d1fb9 | 315 | { |
k4zuki | 14:812873f3a933 | 316 | _ram_select(); |
k4zuki | 9:33d5888d1fb9 | 317 | _spi.write(WRITE_STATUS); |
k4zuki | 9:33d5888d1fb9 | 318 | _spi.write(status); |
k4zuki | 14:812873f3a933 | 319 | _ram_deselect(); |
k4zuki | 9:33d5888d1fb9 | 320 | } |
k4zuki | 9:33d5888d1fb9 | 321 | |
k4zuki | 14:812873f3a933 | 322 | void AkiSpiLcd::_ram_prepareCommand(uint8_t command, int address) |
k4zuki | 9:33d5888d1fb9 | 323 | { |
k4zuki | 14:812873f3a933 | 324 | _ram_select(); |
k4zuki | 9:33d5888d1fb9 | 325 | _spi.write(command); |
k4zuki | 9:33d5888d1fb9 | 326 | _spi.write(address >> 8); |
k4zuki | 9:33d5888d1fb9 | 327 | _spi.write(address & 0xFF); |
k4zuki | 9:33d5888d1fb9 | 328 | } |
k4zuki | 9:33d5888d1fb9 | 329 | |
k4zuki | 14:812873f3a933 | 330 | void AkiSpiLcd::_ram_select() |
k4zuki | 9:33d5888d1fb9 | 331 | { |
k4zuki | 14:812873f3a933 | 332 | _csr = 0; |
k4zuki | 14:812873f3a933 | 333 | } |
k4zuki | 14:812873f3a933 | 334 | |
k4zuki | 14:812873f3a933 | 335 | void AkiSpiLcd::_ram_deselect() |
k4zuki | 14:812873f3a933 | 336 | { |
k4zuki | 14:812873f3a933 | 337 | _csr = 1; |
k4zuki | 9:33d5888d1fb9 | 338 | } |
k4zuki | 9:33d5888d1fb9 | 339 | |
k4zuki | 14:812873f3a933 | 340 | void AkiSpiLcd::_cls_ram( int address ) |
k4zuki | 9:33d5888d1fb9 | 341 | { |
k4zuki | 14:812873f3a933 | 342 | _modeflag=1; |
k4zuki | 14:812873f3a933 | 343 | _clearflag=0; |
k4zuki | 14:812873f3a933 | 344 | _ram_writeStatus(SEQUENTIAL_MODE); |
k4zuki | 14:812873f3a933 | 345 | _ram_prepareCommand(WRITE, address); |
k4zuki | 14:812873f3a933 | 346 | for (int i = 1; i <= (240); i++) { |
k4zuki | 14:812873f3a933 | 347 | _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); |
k4zuki | 14:812873f3a933 | 348 | _spi.write( (uint8_t)lcd_line[i] ); |
k4zuki | 14:812873f3a933 | 349 | for(int j = 0; j < 50; j++) { |
k4zuki | 14:812873f3a933 | 350 | _spi.write(0x00); |
k4zuki | 14:812873f3a933 | 351 | } |
k4zuki | 14:812873f3a933 | 352 | |
k4zuki | 14:812873f3a933 | 353 | } |
k4zuki | 14:812873f3a933 | 354 | _ram_deselect(); |
k4zuki | 14:812873f3a933 | 355 | _ram_writeStatus(BYTE_MODE); |
k4zuki | 9:33d5888d1fb9 | 356 | } |