Basic library for SHARP LCD LS027B4DH01/LS027B7DH01
Dependents: AkiSpiLcd_demo AkiSpiLcd_demo2 LCDRAM AkiSpiLcd_example
Diff: AkiSpiLcd.cpp
- Revision:
- 14:812873f3a933
- Parent:
- 12:30b31d87a30e
- Child:
- 15:704dd6e688ab
--- a/AkiSpiLcd.cpp Mon Sep 29 04:47:43 2014 +0000 +++ b/AkiSpiLcd.cpp Thu Oct 02 18:13:05 2014 +0000 @@ -10,93 +10,65 @@ AkiSpiLcd::AkiSpiLcd(PinName mosi, PinName miso, PinName sck, PinName csl, PinName csr) :_spi(mosi, miso, sck), _csl(csl), _csr(csr) { -// Ser23K256 _ram(_spi,csr); _csl=0; _csr=1; _spi.format(8,0); - _spi.frequency(10000000); - comflag = modeflag = clearflag = 0; + _spi.frequency(5000000); + _comflag = _modeflag = _clearflag = 0; - uint8_t data[240]; - for(int i=0; i<240; i++) { - data[i]=(uint8_t)lcd_line[i]; - /*( ( (i+1) & 0x01 ) << 7 )| - ( ( (i+1) & 0x02 ) << 5 )| - ( ( (i+1) & 0x04 ) << 3 )| - ( ( (i+1) & 0x08 ) << 1 )| - ( ( (i+1) & 0x10 ) >> 1 )| - ( ( (i+1) & 0x20 ) >> 3 )| - ( ( (i+1) & 0x40 ) >> 5 )| - ( ( (i+1) & 0x80 ) >> 7 ); - */ - } - ram_write(RAMLINE_BASE,data,240); - uint8_t buffer[4] = {0,0,0,0}; - ram_write(RAMMODE_BASE,buffer,4); +// if(_csr != NULL) { +// uint8_t data[240]; +// data[0]=0; +// for(int i=1; i<=240; i++) { +// data[i]=(uint8_t)lcd_line[i]; +// } +// ram_write(RAMLINE_BASE,data,240); +// } +// uint8_t buffer[4] = {0,0,0,0}; +// ram_write(RAMMODE_BASE,buffer,4); } void AkiSpiLcd::cls() { - modeflag=0; - clearflag=1; + _modeflag=0; + _clearflag=1; _csl=1; wait_us(5); - _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) ); + _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); _spi.write(0x00); wait_us(5); _csl=0; - if(comflag == 0) { - comflag = 1; - } else { - comflag = 0; - } + cominvert(); } void AkiSpiLcd::cls_ram( int screen ) { screen &=1; if(screen==SCREEN0) { - screen=SCREEN0_BASE; + _cls_ram( SCREEN0_BASE ); } else { - screen=SCREEN1_BASE; + _cls_ram( SCREEN1_BASE ); } - - ram_writeStatus(SEQUENTIAL_MODE); - ram_prepareCommand(WRITE, screen); - for (int i = 0; i < (50*240); i++) { - _spi.write(0x00); - } - ram_deselect(); - ram_writeStatus(BYTE_MODE); } void AkiSpiLcd::directUpdateSingle(int line, uint8_t* data) { - modeflag=1; - clearflag=0; + _modeflag=1; + _clearflag=0; _csl=1; wait_us(1); - _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) ); + if(line ==0)line=1; + + _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); _spi.write((uint8_t)lcd_line[line]); - /* - _spi.write( - ( ( (line+1) & 0x01 ) << 7 )| - ( ( (line+1) & 0x02 ) << 5 )| - ( ( (line+1) & 0x04 ) << 3 )| - ( ( (line+1) & 0x08 ) << 1 )| - ( ( (line+1) & 0x10 ) >> 1 )| - ( ( (line+1) & 0x20 ) >> 3 )| - ( ( (line+1) & 0x40 ) >> 5 )| - ( ( (line+1) & 0x80 ) >> 7 ) - );*/ for(int i=0; i<50; i++) { _spi.write( *(data+i) ); @@ -107,35 +79,22 @@ wait_us(5); _csl=0; - if(comflag == 0) { - comflag = 1; - } else { - comflag = 0; - } + cominvert(); } void AkiSpiLcd::directUpdateMulti(int line, int length, uint8_t* data) { - modeflag=1; - clearflag=0; + _modeflag=1; + _clearflag=0; + + if(line==0)line=1; if(length>0) { _csl=1; wait_us(5); - for (int j=0; j<length; j++) { - _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) ); + for (int j=1; j<=length; j++) { + _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); _spi.write((uint8_t)lcd_line[line]); - /* _spi.write( - ( ( (line+1) & 0x01 ) << 7 )| - ( ( (line+1) & 0x02 ) << 5 )| - ( ( (line+1) & 0x04 ) << 3 )| - ( ( (line+1) & 0x08 ) << 1 )| - ( ( (line+1) & 0x10 ) >> 1 )| - ( ( (line+1) & 0x20 ) >> 3 )| - ( ( (line+1) & 0x40 ) >> 5 )| - ( ( (line+1) & 0x80 ) >> 7 ) - ); - */ for(int i=0; i<50; i++) { _spi.write( *(data+(50*j+i)) );//hogepic[50*j+i] } @@ -146,44 +105,30 @@ wait_us(5); _csl=0; } - if(comflag == 0) { - comflag = 1; - } else { - comflag = 0; - } + cominvert(); } void AkiSpiLcd::cominvert() { - modeflag=0; - clearflag=0; + _modeflag=0; + _clearflag=0; _csl=1; - _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) ); + _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); _spi.write(0x00); wait_us(5); _csl=0; - if(comflag == 0) { - comflag = 1; + if(_comflag == 0) { + _comflag = 1; } else { - comflag = 0; + _comflag = 0; } } -/* -void AkiSpiLcd::dispOn(bool disp) -{ - if(disp) { - _csr=1; - } else { - _csr=0; - } -} + +/** Reads single line (16 + 400 bits = 52 bytes) from a screen */ - -/** Reads single line (400 bits = 50 bytes) from a screen -*/ -void AkiSpiLcd::ramReadSingle(int line, uint8_t* buffer, int screen) +void AkiSpiLcd::ramReadSingleLine(int line, uint8_t* buffer, int screen) { screen &=1; if(screen==SCREEN0) { @@ -191,26 +136,15 @@ } else { screen=SCREEN1_BASE; } -// uint8_t buffer[50]; - line*=50; + + line*=RAMLINE_LENGTH; int address=screen+line; - ram_read(address,buffer,50); - /* - _csr=0; //select VRAM - _spi.write(0x03); - _spi.write(address>>8); - _spi.write(address&0xff); - for(int i=0;i<50;i++){ - *(buffer+i)=_spi.write(0xaa); - } - _csr=1; - */ -// return buffer; + ram_read(address,buffer,RAMLINE_LENGTH); } -/** Reads multi lines(400 x N bits = 50 x N bytes) from a screen +/** Reads multi lines( (16 + 400) x N bits = 52 x N bytes) from a screen */ -void AkiSpiLcd::ramReadMulti(int line, int length, uint8_t* buffer, int screen) +void AkiSpiLcd::ramReadMultiLine(int line, int length, uint8_t* buffer, int screen) { screen &=1; if(screen==SCREEN0) { @@ -218,53 +152,14 @@ } else { screen=SCREEN1_BASE; } - line*=50; + line*=RAMLINE_LENGTH; int address=screen+line; -// for(int j=0;j<length;j++){ - ram_read(address,buffer,50*length); -// } - /* - _csr=0; //select VRAM - _spi.write(0x03); - _spi.write(address>>8); - _spi.write(address&0xff); - for(int j=0;j<length;j++){ - for(int i=0;i<50;i++){ - *(buffer+i)=_spi.write(0xaa); - } - } - _csr=1; - */ -// return buffer; + ram_read(address,buffer,RAMLINE_LENGTH*length); } /** Writes single line (400 bits = 50 bytes) into a screen */ -void AkiSpiLcd::ramWriteSingle(int line, uint8_t* data, int screen) -{ - screen &=1; - if(screen==SCREEN0) { - screen=SCREEN0_BASE; - } else { - screen=SCREEN1_BASE; - } - line*=50; - int address=screen+line; - ram_write(address,data,50); - - _csr=0; //select VRAM - _spi.write(0x02); - _spi.write(address>>8); - _spi.write(address&0xff); - for(int i=0; i<50; i++) { - _spi.write(*(data+i)); - } - _csr=1; -} - -/** Writes multi lines(400 x N bits = 50 x N bytes) into a screen -*/ -void AkiSpiLcd::ramWriteMulti(int line, int length, uint8_t* data, int screen) +void AkiSpiLcd::ramWriteSingleLine(int line, uint8_t* data, int screen) { screen &=1; if(screen==SCREEN0) { @@ -272,130 +167,173 @@ } else { screen=SCREEN1_BASE; } - line*=50; - + line--; + line*=RAMLINE_LENGTH; int address=screen+line; - ram_write(address,data,50*length); - /* - _csr=0; //select VRAM - _spi.write(0x02); - _spi.write(address>>8); - _spi.write(address&0xff); - for(int j=0;j<length;j++){ - for(int i=0;i<50;i++){ - _spi.write(*(data+j*50+i)); + ram_write(address,data,50); +} + +/** Writes multi lines(400 x N bits = 50 x N bytes) into a screen +*/ +void AkiSpiLcd::ramWriteMultiLine(int line, int length, uint8_t* data, int screen) +{ + _modeflag=1; + _clearflag=0; + screen &=1; + if(screen==SCREEN0) { + screen=SCREEN0_BASE; + } else { + screen=SCREEN1_BASE; + } +// line--; +// line*=RAMLINE_LENGTH; + + int address=screen+line*RAMLINE_LENGTH; + _ram_writeStatus(SEQUENTIAL_MODE); + _ram_prepareCommand(WRITE, address); + for(int i=0; i<length; i++) { + _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); + _spi.write( (uint8_t)lcd_line[line] ); + for(int j = 0; j < LINE_LENGTH; j++) { + _spi.write(*data); + data++; } + line++; } - _csr=1; - */ + _ram_deselect(); + _ram_writeStatus(BYTE_MODE); +// ram_write(address,data,50*length); } /** copies whole data in screen into LCD */ void AkiSpiLcd::ram2lcd(int startline, int length, int screen) { + _modeflag=1; + _clearflag=0; screen &=1; if(screen==SCREEN0) { screen=SCREEN0_BASE; } else { screen=SCREEN1_BASE; } -// screen<<=7; + if(startline==0)startline=1; + + if(length>0) { + + int address=screen+startline*RAMLINE_LENGTH; +// uint8_t dummy[RAMLINE_LENGTH+2]; + uint8_t dummy=0; - int address=screen+length*50; - uint8_t dummy[50]; - /* - _csr=0; //select VRAM - _spi.write(0x03); - _spi.write(address>>8); - _spi.write(address&0xff); - */ - ram_write(RAMMODE_BASE,(modeflag << 7) | (comflag << 6) | (clearflag << 5)); - _csl=1; - for(int j=0; j<length; j++) { - ram_read(RAMMODE_BASE); - ram_read(RAMLINE_BASE+startline); - ram_read(address+50*j,dummy,50); - ram_read(RAMMODE_BASE+2,dummy,2); - wait_us(5); - _csl=0; - if(comflag == 0) { - comflag = 1; - } else { - comflag = 0; + _ram_writeStatus(SEQUENTIAL_MODE); + _ram_prepareCommand(READ,address); + _csl=1; + for(int j = 0; j <= length; j++) { +// _csl=1; + for(int k = 0; k < RAMLINE_LENGTH; k+=4) { + dummy = _spi.write(0x55); + dummy = _spi.write(0xde); + dummy = _spi.write(0xad); +// dummy = _spi.write(0xbe); +// dummy = _spi.write(0xaf); + dummy = _spi.write(0xaa); + } +// _csl = 0; } } - _csl=0; + _csl = 0; +// _spi.write(0xde); +// _spi.write(0xad); + _ram_deselect(); + cominvert(); } uint8_t AkiSpiLcd::ram_read(int address) { - ram_prepareCommand(READ, address); + _ram_prepareCommand(READ, address); int result = _spi.write(0); - ram_deselect(); + _ram_deselect(); return (uint8_t) result; } void AkiSpiLcd::ram_read(int address, uint8_t * buffer, int count) { - ram_writeStatus(SEQUENTIAL_MODE); - ram_prepareCommand(READ, address); + _ram_writeStatus(SEQUENTIAL_MODE); + _ram_prepareCommand(READ, address); for (int i = 0; i < count; i++) { buffer[i] = _spi.write(0); } - ram_deselect(); - ram_writeStatus(BYTE_MODE); + _ram_deselect(); + _ram_writeStatus(BYTE_MODE); } void AkiSpiLcd::ram_write(int address, uint8_t byte) { - ram_prepareCommand(WRITE, address); + _ram_prepareCommand(WRITE, address); _spi.write(byte); - ram_deselect(); + _ram_deselect(); } void AkiSpiLcd::ram_write(int address, uint8_t * buffer, int count) { - ram_writeStatus(SEQUENTIAL_MODE); - ram_prepareCommand(WRITE, address); + _ram_writeStatus(SEQUENTIAL_MODE); + _ram_prepareCommand(WRITE, address); for (int i = 0; i < count; i++) { _spi.write(buffer[i]); } - ram_deselect(); - ram_writeStatus(BYTE_MODE); + _ram_deselect(); + _ram_writeStatus(BYTE_MODE); } uint8_t AkiSpiLcd::ram_readStatus() { - ram_select(); + _ram_select(); _spi.write(READ_STATUS); uint8_t result = (uint8_t) _spi.write(0); - ram_deselect(); + _ram_deselect(); return result; } -void AkiSpiLcd::ram_writeStatus(uint8_t status) +void AkiSpiLcd::_ram_writeStatus(uint8_t status) { - ram_select(); + _ram_select(); _spi.write(WRITE_STATUS); _spi.write(status); - ram_deselect(); + _ram_deselect(); } -void AkiSpiLcd::ram_prepareCommand(uint8_t command, int address) +void AkiSpiLcd::_ram_prepareCommand(uint8_t command, int address) { - ram_select(); + _ram_select(); _spi.write(command); _spi.write(address >> 8); _spi.write(address & 0xFF); } -void AkiSpiLcd::ram_select() +void AkiSpiLcd::_ram_select() { - _csr=0; + _csr = 0; +} + +void AkiSpiLcd::_ram_deselect() +{ + _csr = 1; } -void AkiSpiLcd::ram_deselect() +void AkiSpiLcd::_cls_ram( int address ) { - _csr=1; + _modeflag=1; + _clearflag=0; + _ram_writeStatus(SEQUENTIAL_MODE); + _ram_prepareCommand(WRITE, address); + for (int i = 1; i <= (240); i++) { + _spi.write( (_modeflag << 7) | (_comflag << 6) | (_clearflag << 5) ); + _spi.write( (uint8_t)lcd_line[i] ); + for(int j = 0; j < 50; j++) { + _spi.write(0x00); + } + + } + _ram_deselect(); + _ram_writeStatus(BYTE_MODE); }