Basic library for SHARP LCD LS027B4DH01/LS027B7DH01
Dependents: AkiSpiLcd_demo AkiSpiLcd_demo2 LCDRAM AkiSpiLcd_example
AkiSpiLcd.cpp@5:7061ce47a359, 2014-08-28 (annotated)
- Committer:
- k4zuki
- Date:
- Thu Aug 28 10:10:37 2014 +0000
- Revision:
- 5:7061ce47a359
- Parent:
- 4:844693a617dc
- Child:
- 7:0c85f23a6568
simplified code using Ser26K256 library
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 | 0:b3c8fdd01601 | 7 | |
k4zuki | 4:844693a617dc | 8 | AkiSpiLcd::AkiSpiLcd(PinName mosi, PinName miso, PinName sck, PinName csl, PinName csr) |
k4zuki | 4:844693a617dc | 9 | :_spi(mosi, miso, sck), _csl(csl), _csr(csr) |
k4zuki | 0:b3c8fdd01601 | 10 | { |
k4zuki | 5:7061ce47a359 | 11 | _ram= new Ser23K256::Ser23K256(_spi,csr); |
k4zuki | 3:f835b8daf9a0 | 12 | _csl=0; |
k4zuki | 4:844693a617dc | 13 | _csr=1; |
k4zuki | 0:b3c8fdd01601 | 14 | _spi.format(8,0); |
k4zuki | 0:b3c8fdd01601 | 15 | _spi.frequency(2000000); |
k4zuki | 0:b3c8fdd01601 | 16 | comflag = modeflag = clearflag = 0; |
k4zuki | 5:7061ce47a359 | 17 | |
k4zuki | 5:7061ce47a359 | 18 | int data=0; |
k4zuki | 5:7061ce47a359 | 19 | for(int i=0;i<240;i++){ |
k4zuki | 5:7061ce47a359 | 20 | data=( ( i & 0x01 ) << 7 )| |
k4zuki | 5:7061ce47a359 | 21 | ( ( i & 0x02 ) << 5 )| |
k4zuki | 5:7061ce47a359 | 22 | ( ( i & 0x04 ) << 3 )| |
k4zuki | 5:7061ce47a359 | 23 | ( ( i & 0x08 ) << 1 )| |
k4zuki | 5:7061ce47a359 | 24 | ( ( i & 0x10 ) >> 1 )| |
k4zuki | 5:7061ce47a359 | 25 | ( ( i & 0x20 ) >> 3 )| |
k4zuki | 5:7061ce47a359 | 26 | ( ( i & 0x40 ) >> 5 )| |
k4zuki | 5:7061ce47a359 | 27 | ( ( i & 0x80 ) >> 7 ); |
k4zuki | 5:7061ce47a359 | 28 | |
k4zuki | 5:7061ce47a359 | 29 | _ram->write(RAMLINE_BASE+i,(uint8_t)data); |
k4zuki | 4:844693a617dc | 30 | } |
k4zuki | 5:7061ce47a359 | 31 | _ram->write(RAMMODE_BASE,0x00000000); |
k4zuki | 5:7061ce47a359 | 32 | |
k4zuki | 0:b3c8fdd01601 | 33 | } |
k4zuki | 0:b3c8fdd01601 | 34 | |
k4zuki | 0:b3c8fdd01601 | 35 | void AkiSpiLcd::cls() |
k4zuki | 0:b3c8fdd01601 | 36 | { |
k4zuki | 0:b3c8fdd01601 | 37 | modeflag=0; |
k4zuki | 0:b3c8fdd01601 | 38 | clearflag=1; |
k4zuki | 0:b3c8fdd01601 | 39 | |
k4zuki | 3:f835b8daf9a0 | 40 | _csl=1; |
k4zuki | 0:b3c8fdd01601 | 41 | wait_us(5); |
k4zuki | 0:b3c8fdd01601 | 42 | |
k4zuki | 0:b3c8fdd01601 | 43 | _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) ); |
k4zuki | 0:b3c8fdd01601 | 44 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 45 | |
k4zuki | 0:b3c8fdd01601 | 46 | wait_us(5); |
k4zuki | 3:f835b8daf9a0 | 47 | _csl=0; |
k4zuki | 0:b3c8fdd01601 | 48 | |
k4zuki | 0:b3c8fdd01601 | 49 | if(comflag == 0) { |
k4zuki | 0:b3c8fdd01601 | 50 | comflag = 1; |
k4zuki | 0:b3c8fdd01601 | 51 | } else { |
k4zuki | 0:b3c8fdd01601 | 52 | comflag = 0; |
k4zuki | 0:b3c8fdd01601 | 53 | } |
k4zuki | 0:b3c8fdd01601 | 54 | } |
k4zuki | 0:b3c8fdd01601 | 55 | |
k4zuki | 3:f835b8daf9a0 | 56 | void AkiSpiLcd::directUpdateSingle(int line, uint8_t* data) |
k4zuki | 0:b3c8fdd01601 | 57 | { |
k4zuki | 0:b3c8fdd01601 | 58 | modeflag=1; |
k4zuki | 0:b3c8fdd01601 | 59 | clearflag=0; |
k4zuki | 0:b3c8fdd01601 | 60 | |
k4zuki | 3:f835b8daf9a0 | 61 | _csl=1; |
k4zuki | 0:b3c8fdd01601 | 62 | wait_us(5); |
k4zuki | 0:b3c8fdd01601 | 63 | |
k4zuki | 0:b3c8fdd01601 | 64 | _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) ); |
k4zuki | 3:f835b8daf9a0 | 65 | |
k4zuki | 0:b3c8fdd01601 | 66 | _spi.write( |
k4zuki | 0:b3c8fdd01601 | 67 | ( ( (line+1) & 0x01 ) << 7 )| |
k4zuki | 0:b3c8fdd01601 | 68 | ( ( (line+1) & 0x02 ) << 5 )| |
k4zuki | 0:b3c8fdd01601 | 69 | ( ( (line+1) & 0x04 ) << 3 )| |
k4zuki | 0:b3c8fdd01601 | 70 | ( ( (line+1) & 0x08 ) << 1 )| |
k4zuki | 0:b3c8fdd01601 | 71 | ( ( (line+1) & 0x10 ) >> 1 )| |
k4zuki | 0:b3c8fdd01601 | 72 | ( ( (line+1) & 0x20 ) >> 3 )| |
k4zuki | 0:b3c8fdd01601 | 73 | ( ( (line+1) & 0x40 ) >> 5 )| |
k4zuki | 0:b3c8fdd01601 | 74 | ( ( (line+1) & 0x80 ) >> 7 ) |
k4zuki | 0:b3c8fdd01601 | 75 | ); |
k4zuki | 0:b3c8fdd01601 | 76 | for(int i=0; i<50; i++) { |
k4zuki | 0:b3c8fdd01601 | 77 | _spi.write( *(data+i) ); |
k4zuki | 0:b3c8fdd01601 | 78 | } |
k4zuki | 0:b3c8fdd01601 | 79 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 80 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 81 | |
k4zuki | 0:b3c8fdd01601 | 82 | wait_us(5); |
k4zuki | 3:f835b8daf9a0 | 83 | _csl=0; |
k4zuki | 0:b3c8fdd01601 | 84 | |
k4zuki | 0:b3c8fdd01601 | 85 | if(comflag == 0) { |
k4zuki | 0:b3c8fdd01601 | 86 | comflag = 1; |
k4zuki | 0:b3c8fdd01601 | 87 | } else { |
k4zuki | 0:b3c8fdd01601 | 88 | comflag = 0; |
k4zuki | 0:b3c8fdd01601 | 89 | } |
k4zuki | 0:b3c8fdd01601 | 90 | } |
k4zuki | 0:b3c8fdd01601 | 91 | |
k4zuki | 3:f835b8daf9a0 | 92 | void AkiSpiLcd::directUpdateMulti(int line, int length, uint8_t* data) |
k4zuki | 0:b3c8fdd01601 | 93 | { |
k4zuki | 0:b3c8fdd01601 | 94 | modeflag=1; |
k4zuki | 0:b3c8fdd01601 | 95 | clearflag=0; |
k4zuki | 0:b3c8fdd01601 | 96 | |
k4zuki | 0:b3c8fdd01601 | 97 | if(length>0) { |
k4zuki | 3:f835b8daf9a0 | 98 | _csl=1; |
k4zuki | 0:b3c8fdd01601 | 99 | wait_us(5); |
k4zuki | 0:b3c8fdd01601 | 100 | for (int j=0; j<length; j++) { |
k4zuki | 0:b3c8fdd01601 | 101 | _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) ); |
k4zuki | 0:b3c8fdd01601 | 102 | _spi.write( |
k4zuki | 5:7061ce47a359 | 103 | ( ( (line) & 0x01 ) << 7 )| |
k4zuki | 5:7061ce47a359 | 104 | ( ( (line) & 0x02 ) << 5 )| |
k4zuki | 5:7061ce47a359 | 105 | ( ( (line) & 0x04 ) << 3 )| |
k4zuki | 5:7061ce47a359 | 106 | ( ( (line) & 0x08 ) << 1 )| |
k4zuki | 5:7061ce47a359 | 107 | ( ( (line) & 0x10 ) >> 1 )| |
k4zuki | 5:7061ce47a359 | 108 | ( ( (line) & 0x20 ) >> 3 )| |
k4zuki | 5:7061ce47a359 | 109 | ( ( (line) & 0x40 ) >> 5 )| |
k4zuki | 5:7061ce47a359 | 110 | ( ( (line) & 0x80 ) >> 7 ) |
k4zuki | 0:b3c8fdd01601 | 111 | ); |
k4zuki | 0:b3c8fdd01601 | 112 | |
k4zuki | 0:b3c8fdd01601 | 113 | for(int i=0; i<50; i++) { |
k4zuki | 0:b3c8fdd01601 | 114 | _spi.write( *(data+(50*j+i)) );//hogepic[50*j+i] |
k4zuki | 0:b3c8fdd01601 | 115 | } |
k4zuki | 0:b3c8fdd01601 | 116 | line+=1; |
k4zuki | 0:b3c8fdd01601 | 117 | } |
k4zuki | 0:b3c8fdd01601 | 118 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 119 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 120 | wait_us(5); |
k4zuki | 3:f835b8daf9a0 | 121 | _csl=0; |
k4zuki | 0:b3c8fdd01601 | 122 | } |
k4zuki | 0:b3c8fdd01601 | 123 | if(comflag == 0) { |
k4zuki | 0:b3c8fdd01601 | 124 | comflag = 1; |
k4zuki | 0:b3c8fdd01601 | 125 | } else { |
k4zuki | 0:b3c8fdd01601 | 126 | comflag = 0; |
k4zuki | 0:b3c8fdd01601 | 127 | } |
k4zuki | 0:b3c8fdd01601 | 128 | } |
k4zuki | 0:b3c8fdd01601 | 129 | |
k4zuki | 0:b3c8fdd01601 | 130 | void AkiSpiLcd::cominvert() |
k4zuki | 0:b3c8fdd01601 | 131 | { |
k4zuki | 0:b3c8fdd01601 | 132 | modeflag=0; |
k4zuki | 0:b3c8fdd01601 | 133 | clearflag=0; |
k4zuki | 0:b3c8fdd01601 | 134 | |
k4zuki | 3:f835b8daf9a0 | 135 | _csl=1; |
k4zuki | 0:b3c8fdd01601 | 136 | |
k4zuki | 0:b3c8fdd01601 | 137 | _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) ); |
k4zuki | 0:b3c8fdd01601 | 138 | _spi.write(0x00); |
k4zuki | 0:b3c8fdd01601 | 139 | wait_us(5); |
k4zuki | 3:f835b8daf9a0 | 140 | _csl=0; |
k4zuki | 0:b3c8fdd01601 | 141 | if(comflag == 0) { |
k4zuki | 0:b3c8fdd01601 | 142 | comflag = 1; |
k4zuki | 0:b3c8fdd01601 | 143 | } else { |
k4zuki | 0:b3c8fdd01601 | 144 | comflag = 0; |
k4zuki | 0:b3c8fdd01601 | 145 | } |
k4zuki | 0:b3c8fdd01601 | 146 | } |
k4zuki | 3:f835b8daf9a0 | 147 | /* |
k4zuki | 0:b3c8fdd01601 | 148 | void AkiSpiLcd::dispOn(bool disp) |
k4zuki | 0:b3c8fdd01601 | 149 | { |
k4zuki | 0:b3c8fdd01601 | 150 | if(disp) { |
k4zuki | 3:f835b8daf9a0 | 151 | _csr=1; |
k4zuki | 0:b3c8fdd01601 | 152 | } else { |
k4zuki | 3:f835b8daf9a0 | 153 | _csr=0; |
k4zuki | 0:b3c8fdd01601 | 154 | } |
k4zuki | 0:b3c8fdd01601 | 155 | } |
k4zuki | 3:f835b8daf9a0 | 156 | */ |
k4zuki | 4:844693a617dc | 157 | |
k4zuki | 4:844693a617dc | 158 | /** Reads single line (400 bits = 50 bytes) from a screen |
k4zuki | 4:844693a617dc | 159 | */ |
k4zuki | 4:844693a617dc | 160 | void AkiSpiLcd::ramReadSingle(int line, uint8_t* buffer, int screen){ |
k4zuki | 4:844693a617dc | 161 | screen &=1; |
k4zuki | 4:844693a617dc | 162 | screen<<=7; |
k4zuki | 4:844693a617dc | 163 | // uint8_t buffer[50]; |
k4zuki | 4:844693a617dc | 164 | line*=50; |
k4zuki | 4:844693a617dc | 165 | int address=screen+line; |
k4zuki | 5:7061ce47a359 | 166 | _ram->read(address,buffer,50); |
k4zuki | 5:7061ce47a359 | 167 | /* |
k4zuki | 4:844693a617dc | 168 | _csr=0; //select VRAM |
k4zuki | 4:844693a617dc | 169 | _spi.write(0x03); |
k4zuki | 4:844693a617dc | 170 | _spi.write(address>>8); |
k4zuki | 4:844693a617dc | 171 | _spi.write(address&0xff); |
k4zuki | 4:844693a617dc | 172 | for(int i=0;i<50;i++){ |
k4zuki | 4:844693a617dc | 173 | *(buffer+i)=_spi.write(0xaa); |
k4zuki | 4:844693a617dc | 174 | } |
k4zuki | 4:844693a617dc | 175 | _csr=1; |
k4zuki | 5:7061ce47a359 | 176 | */ |
k4zuki | 4:844693a617dc | 177 | // return buffer; |
k4zuki | 4:844693a617dc | 178 | } |
k4zuki | 4:844693a617dc | 179 | |
k4zuki | 4:844693a617dc | 180 | /** Reads multi lines(400 x N bits = 50 x N bytes) from a screen |
k4zuki | 4:844693a617dc | 181 | */ |
k4zuki | 4:844693a617dc | 182 | void AkiSpiLcd::ramReadMulti(int line, int length, uint8_t* buffer, int screen){ |
k4zuki | 4:844693a617dc | 183 | screen &=1; |
k4zuki | 4:844693a617dc | 184 | screen<<=7; |
k4zuki | 4:844693a617dc | 185 | line*=50; |
k4zuki | 4:844693a617dc | 186 | int address=screen+line; |
k4zuki | 5:7061ce47a359 | 187 | // for(int j=0;j<length;j++){ |
k4zuki | 5:7061ce47a359 | 188 | _ram->read(address,buffer,50*length); |
k4zuki | 5:7061ce47a359 | 189 | // } |
k4zuki | 5:7061ce47a359 | 190 | /* |
k4zuki | 4:844693a617dc | 191 | _csr=0; //select VRAM |
k4zuki | 4:844693a617dc | 192 | _spi.write(0x03); |
k4zuki | 4:844693a617dc | 193 | _spi.write(address>>8); |
k4zuki | 4:844693a617dc | 194 | _spi.write(address&0xff); |
k4zuki | 4:844693a617dc | 195 | for(int j=0;j<length;j++){ |
k4zuki | 4:844693a617dc | 196 | for(int i=0;i<50;i++){ |
k4zuki | 4:844693a617dc | 197 | *(buffer+i)=_spi.write(0xaa); |
k4zuki | 4:844693a617dc | 198 | } |
k4zuki | 4:844693a617dc | 199 | } |
k4zuki | 4:844693a617dc | 200 | _csr=1; |
k4zuki | 5:7061ce47a359 | 201 | */ |
k4zuki | 4:844693a617dc | 202 | // return buffer; |
k4zuki | 4:844693a617dc | 203 | } |
k4zuki | 4:844693a617dc | 204 | |
k4zuki | 4:844693a617dc | 205 | /** Writes single line (400 bits = 50 bytes) into a screen |
k4zuki | 4:844693a617dc | 206 | */ |
k4zuki | 4:844693a617dc | 207 | void AkiSpiLcd::ramWriteSingle(int line, uint8_t* data, int screen){ |
k4zuki | 4:844693a617dc | 208 | screen &=1; |
k4zuki | 4:844693a617dc | 209 | screen<<=7; |
k4zuki | 4:844693a617dc | 210 | line*=50; |
k4zuki | 4:844693a617dc | 211 | int address=screen+line; |
k4zuki | 5:7061ce47a359 | 212 | _ram->write(address,data,50); |
k4zuki | 5:7061ce47a359 | 213 | |
k4zuki | 4:844693a617dc | 214 | _csr=0; //select VRAM |
k4zuki | 4:844693a617dc | 215 | _spi.write(0x02); |
k4zuki | 4:844693a617dc | 216 | _spi.write(address>>8); |
k4zuki | 4:844693a617dc | 217 | _spi.write(address&0xff); |
k4zuki | 4:844693a617dc | 218 | for(int i=0;i<50;i++){ |
k4zuki | 4:844693a617dc | 219 | _spi.write(*(data+i)); |
k4zuki | 4:844693a617dc | 220 | } |
k4zuki | 4:844693a617dc | 221 | _csr=1; |
k4zuki | 4:844693a617dc | 222 | } |
k4zuki | 4:844693a617dc | 223 | |
k4zuki | 4:844693a617dc | 224 | /** Writes multi lines(400 x N bits = 50 x N bytes) into a screen |
k4zuki | 4:844693a617dc | 225 | */ |
k4zuki | 4:844693a617dc | 226 | void AkiSpiLcd::ramWriteMulti(int line, int length, uint8_t* data, int screen){ |
k4zuki | 4:844693a617dc | 227 | screen &=1; |
k4zuki | 4:844693a617dc | 228 | screen<<=7; |
k4zuki | 4:844693a617dc | 229 | line*=50; |
k4zuki | 4:844693a617dc | 230 | |
k4zuki | 4:844693a617dc | 231 | int address=screen+line; |
k4zuki | 5:7061ce47a359 | 232 | _ram->write(address,data,50*length); |
k4zuki | 5:7061ce47a359 | 233 | /* |
k4zuki | 4:844693a617dc | 234 | _csr=0; //select VRAM |
k4zuki | 4:844693a617dc | 235 | _spi.write(0x02); |
k4zuki | 4:844693a617dc | 236 | _spi.write(address>>8); |
k4zuki | 4:844693a617dc | 237 | _spi.write(address&0xff); |
k4zuki | 4:844693a617dc | 238 | for(int j=0;j<length;j++){ |
k4zuki | 4:844693a617dc | 239 | for(int i=0;i<50;i++){ |
k4zuki | 4:844693a617dc | 240 | _spi.write(*(data+j*50+i)); |
k4zuki | 4:844693a617dc | 241 | } |
k4zuki | 4:844693a617dc | 242 | } |
k4zuki | 4:844693a617dc | 243 | _csr=1; |
k4zuki | 5:7061ce47a359 | 244 | */ |
k4zuki | 4:844693a617dc | 245 | } |
k4zuki | 4:844693a617dc | 246 | |
k4zuki | 4:844693a617dc | 247 | /** copies whole data in screen into LCD |
k4zuki | 4:844693a617dc | 248 | */ |
k4zuki | 4:844693a617dc | 249 | void AkiSpiLcd::ram2lcd(int screen){ |
k4zuki | 4:844693a617dc | 250 | screen &=1; |
k4zuki | 4:844693a617dc | 251 | screen<<=7; |
k4zuki | 4:844693a617dc | 252 | |
k4zuki | 4:844693a617dc | 253 | int address=screen; |
k4zuki | 5:7061ce47a359 | 254 | uint8_t* dummy; |
k4zuki | 5:7061ce47a359 | 255 | /* |
k4zuki | 4:844693a617dc | 256 | _csr=0; //select VRAM |
k4zuki | 4:844693a617dc | 257 | _spi.write(0x03); |
k4zuki | 4:844693a617dc | 258 | _spi.write(address>>8); |
k4zuki | 4:844693a617dc | 259 | _spi.write(address&0xff); |
k4zuki | 5:7061ce47a359 | 260 | */ |
k4zuki | 4:844693a617dc | 261 | for(int j=0;j<240;j++){ |
k4zuki | 5:7061ce47a359 | 262 | _ram->write(RAMMODE_BASE,(modeflag << 7) | (comflag << 6) | (clearflag << 5)); |
k4zuki | 5:7061ce47a359 | 263 | _csl=1; |
k4zuki | 5:7061ce47a359 | 264 | _ram->read(RAMMODE_BASE,dummy,2); |
k4zuki | 4:844693a617dc | 265 | for(int i=0;i<50;i++){ |
k4zuki | 5:7061ce47a359 | 266 | _ram->read(address,dummy,50); |
k4zuki | 5:7061ce47a359 | 267 | } |
k4zuki | 5:7061ce47a359 | 268 | _ram->read(RAMMODE_BASE+2,dummy,2); |
k4zuki | 5:7061ce47a359 | 269 | wait_us(5); |
k4zuki | 5:7061ce47a359 | 270 | _csl=0; |
k4zuki | 5:7061ce47a359 | 271 | if(comflag == 0) { |
k4zuki | 5:7061ce47a359 | 272 | comflag = 1; |
k4zuki | 5:7061ce47a359 | 273 | } else { |
k4zuki | 5:7061ce47a359 | 274 | comflag = 0; |
k4zuki | 4:844693a617dc | 275 | } |
k4zuki | 4:844693a617dc | 276 | } |
k4zuki | 4:844693a617dc | 277 | _csl=0; |
k4zuki | 4:844693a617dc | 278 | } |