Kazuki Yamamoto / AkiSpiLcd

Basic library for SHARP LCD LS027B4DH01/LS027B7DH01

Dependents:   AkiSpiLcd_demo AkiSpiLcd_demo2 LCDRAM AkiSpiLcd_example

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AkiSpiLcd Class Reference
Public Types | Public Member Functions

AkiSpiLcd Class Reference

mbed library for SHARP LCD LS027B4DH01 More...

#include <AkiSpiLcd.h>

Public Types

enum  BASE_ADDR
 

base address list for 23K256

More...

Public Member Functions

 AkiSpiLcd (PinName mosi, PinName miso, PinName sck, PinName csl, PinName csr)
 Constructor.
void cls ()
 Clear screen.
void cls_ram (int screen)
 Clear screen of SRAM.
void directUpdateSingle (int line, uint8_t *data)
 place a dot pixel
void directUpdateMulti (int startline, int length, uint8_t *data)
 Writes multi lines(400 x N bits = 50 x N bytes)
void cominvert ()
 Inverting internal COM signal.
void ramReadSingleLine (int line, uint8_t *buffer, int screen)
 Reads single line (400 bits = 50 bytes) from a screen and writes into buffer.
void ramReadMultiLine (int startline, int length, uint8_t *buffer, int screen)
 Reads multi lines(400 x N bits = 50 x N bytes) from a screen.
void ramWriteSingleLine (int line, uint8_t *data, int screen)
 Writes single line (400 bits = 50 bytes) into a screen.
void ramWriteMultiLine (int startline, int length, uint8_t *data, int screen)
 Writes multi lines(400 x N bits = 50 x N bytes) into a screen.
void ram2lcd (int startline, int length, int screen)
 copies whole data in screen into LCD
void ram2lcd (int screen)
 copies whole data in screen into LCD
uint8_t ram_read (int address)
 read a byte from SRAM (copied from Ser23K256)
void ram_read (int address, uint8_t *buffer, int count)
 read multiple bytes from SRAM into a buffer (copied from Ser23K256)
void ram_write (int address, uint8_t byte)
 write a byte to SRAM (copied from Ser23K256)
void ram_write (int address, uint8_t *buffer, int count)
 write multiple bytes to SRAM from a buffer (copied from Ser23K256)

Detailed Description

mbed library for SHARP LCD LS027B4DH01

Example: 

 #include "mbed.h"
 #include "AkiSpiLcd.h"

 AkiSpiLcd LCD(MOSI_, MISO_, SCK_, D2, D5);
 extern const uint8_t hogepic[];
 int main()
 {

   wait_ms(1);
   LCD.cls();
   LCD.directUpdateSingle(10,(uint8_t*)(hogepic+2000));
   LCD.directUpdateMulti(100,(240-100),(uint8_t*)(hogepic));

   while(1) {
       for(int i=0; i<240; i++) {
           LCD.directUpdateMulti(i,(240-i),(uint8_t*)(hogepic));
           LCD.directUpdateMulti(0,(i),(uint8_t*)(hogepic+50*(240-i)));
       }
   }
 }

Definition at line 92 of file AkiSpiLcd.h.

Member Enumeration Documentation

enum BASE_ADDR

base address list for 23K256

Parameters:
SCREEN0_BASE= 0x0000,
SCREEN1_BASE= 0x3000,
RAMLINE_BASE= 0x6000,

Definition at line 100 of file AkiSpiLcd.h.

Constructor & Destructor Documentation

AkiSpiLcd ( PinName  mosi,
PinName  miso,
PinName  sck,
PinName  csl,
PinName  csr 
)

Constructor.

Parameters:
mosiSPI data output from mbed
mosiSPI data input from slave
sckSPI clock output from mbed
cslHIGH-active chip select input for LCD
csrLOW-active chip select input for SRAM

Definition at line 28 of file AkiSpiLcd.cpp.

Member Function Documentation

void cls (  )

Clear screen.

Definition at line 38 of file AkiSpiLcd.cpp.

void cls_ram ( int  screen )

Clear screen of SRAM.

Parameters:
screenscreen number (0 or 1)

Definition at line 49 of file AkiSpiLcd.cpp.

void cominvert (  )

Inverting internal COM signal.

Definition at line 98 of file AkiSpiLcd.cpp.

void directUpdateMulti ( int  startline,
int  length,
uint8_t *  data 
)

Writes multi lines(400 x N bits = 50 x N bytes)

Parameters:
lineline number(1-240)
lengthnumber of line to write
*datapointer to data

Definition at line 76 of file AkiSpiLcd.cpp.

void directUpdateSingle ( int  line,
uint8_t *  data 
)

place a dot pixel

Parameters:
xx position
yy position Writes single line(400 bits = 50 bytes)
lineline number(1-240)
*datapointer to data

Definition at line 58 of file AkiSpiLcd.cpp.

void ram2lcd ( int  startline,
int  length,
int  screen 
)

copies whole data in screen into LCD

Parameters:
startlinestarting line number(1-240)
lengthnumber of line to read
screenscreen to copy (0 or 1)

Definition at line 189 of file AkiSpiLcd.cpp.

void ram2lcd ( int  screen )

copies whole data in screen into LCD

Parameters:
screenscreen to copy (0 or 1)

Definition at line 234 of file AkiSpiLcd.cpp.

void ram_read ( int  address,
uint8_t *  buffer,
int  count 
)

read multiple bytes from SRAM into a buffer (copied from Ser23K256)

Parameters:
addressThe SRAM address to read from
bufferThe buffer to read into (must be big enough!)
countThe number of bytes to read

Definition at line 248 of file AkiSpiLcd.cpp.

uint8_t ram_read ( int  address )

read a byte from SRAM (copied from Ser23K256)

Parameters:
addressThe address to read from
Returns:
the character at that address

Definition at line 241 of file AkiSpiLcd.cpp.

void ram_write ( int  address,
uint8_t *  buffer,
int  count 
)

write multiple bytes to SRAM from a buffer (copied from Ser23K256)

Parameters:
addressThe SRAM address write to
bufferThe buffer to write from
countThe number of bytes to write

Definition at line 264 of file AkiSpiLcd.cpp.

void ram_write ( int  address,
uint8_t  byte 
)

write a byte to SRAM (copied from Ser23K256)

Parameters:
addressThe SRAM address to write to
byteThe byte to write there

Definition at line 258 of file AkiSpiLcd.cpp.

void ramReadMultiLine ( int  startline,
int  length,
uint8_t *  buffer,
int  screen 
)

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.

Parameters:
startlinestarting line number(1-240)
lengthnumber of line to read
*bufferpointer to buffer
screenscreen to read from(0 or 1)

Definition at line 129 of file AkiSpiLcd.cpp.

void ramReadSingleLine ( int  line,
uint8_t *  buffer,
int  screen 
)

Reads single line (400 bits = 50 bytes) from a screen and writes into buffer.

Reads single line (16 + 400 bits = 52 bytes) from a screen.

Parameters:
lineline number(1-240)
bufferpointer to buffer(50 bytes)
screenscreen to read from(0 or 1)

Definition at line 114 of file AkiSpiLcd.cpp.

void ramWriteMultiLine ( int  startline,
int  length,
uint8_t *  data,
int  screen 
)

Writes multi lines(400 x N bits = 50 x N bytes) into a screen.

Parameters:
startlinestarting line number(1-240)
lengthnumber of line to read
*datapointer to data to write
screenscreen to read from(0 or 1)

Definition at line 159 of file AkiSpiLcd.cpp.

void ramWriteSingleLine ( int  line,
uint8_t *  data,
int  screen 
)

Writes single line (400 bits = 50 bytes) into a screen.

Parameters:
lineline number(1-240)
*datapointer to data to write(50 bytes)
screenscreen to read from(0 or 1)

Definition at line 144 of file AkiSpiLcd.cpp.

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