Basic library for SHARP LCD LS027B4DH01/LS027B7DH01
Dependents: AkiSpiLcd_demo AkiSpiLcd_demo2 LCDRAM AkiSpiLcd_example
Diff: AkiSpiLcd.h
- Revision:
- 14:812873f3a933
- Parent:
- 13:20ba395cbf2a
- Child:
- 16:fa277cbcc890
--- a/AkiSpiLcd.h Mon Sep 29 04:47:43 2014 +0000 +++ b/AkiSpiLcd.h Thu Oct 02 18:13:05 2014 +0000 @@ -7,28 +7,8 @@ #include "mbed.h" -#define SCREEN0 0 -#define SCREEN1 1 - -const uint8_t lcd_line[240]= {0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,0x08, - 0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,0x04, - 0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,0x0C, - 0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,0x02, - 0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,0x0A, - 0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,0x06, - 0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,0x0E, - 0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,0x01, - 0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,0x09, - 0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,0x05, - 0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,0x0D, - 0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,0x03, - 0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,0x0B, - 0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,0x07, - 0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,0x0F, - }; - -/** AkiSpiLcd - * mbed library for SHARP LCD LS027B4DH01 +/** \class AkiSpiLcd + * \brief mbed library for SHARP LCD LS027B4DH01 * * Example: * @code @@ -54,37 +34,52 @@ * } * @endcode */ + +#define SCREEN0 0 +#define SCREEN1 1 +#define LINE_LENGTH 50 +#define RAMLINE_LENGTH 52 + +const uint8_t lcd_line[256]= { + 0x00, + 0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,0x08, + 0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,0x04, + 0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,0x0C, + 0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,0x02, + 0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,0x0A, + 0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,0x06, + 0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,0x0E, + 0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,0x01, + 0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,0x09, + 0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,0x05, + 0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,0x0D, + 0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,0x03, + 0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,0x0B, + 0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,0x07, + 0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,0x0F, +}; + class AkiSpiLcd { public: - //! base address list for 23K256 + /** \enum BASE_ADDR + \brief base address list for 23K256 + @param SCREEN0_BASE = 0x0000, + @param SCREEN1_BASE = 0x3000, + @param RAMLINE_BASE = 0x6000, + */ enum BASE_ADDR { - RAMLINE_BASE = 0x6000, - RAMMODE_BASE = 0x6100, SCREEN0_BASE = 0x0000, - SCREEN1_BASE = 0x3000 - }; - - //! mode codes for 23K256 - enum MODE { - BYTE_MODE = 0x00, - SEQUENTIAL_MODE = 0x40 - }; - - //! command codes for 23K256 - enum COMMAND { - READ = 0x03, - WRITE = 0x02, - READ_STATUS = 0x05, // called RDSR in datasheet - WRITE_STATUS = 0x01 // called WRSR in datasheet + SCREEN1_BASE = 0x3000, + RAMLINE_BASE = 0x6000, }; /** Constructor - * @param mosi SPI data input - * @param mosi SPI data output - * @param sck SPI clock input - * @param cs HIGH-active chip enable input - * @param disp HIGH-active display enable input + * @param mosi SPI data output from mbed + * @param mosi SPI data input from slave + * @param sck SPI clock output from mbed + * @param csl HIGH-active chip select input for LCD + * @param csr LOW-active chip select input for SRAM */ AkiSpiLcd(PinName mosi, PinName miso, PinName sck, PinName csl, PinName csr); @@ -93,8 +88,17 @@ void cls(); /** Clear screen of SRAM + * @param screen screen number (0 or 1) */ void cls_ram( int screen ); + + /** place a dot pixel + * @param x x position + * @param y y position + */ +// virtual void pixel(int x, int y, int colour); +// virtual int width() = 0; +// virtual int height() = 0; /** Writes single line(400 bits = 50 bytes) * @param line line number(1-240) @@ -118,7 +122,7 @@ * @param buffer pointer to buffer(50 bytes) * @param screen screen to read from(0 or 1) */ - void ramReadSingle(int line, uint8_t* buffer, int screen); + void ramReadSingleLine(int line, uint8_t* buffer, int screen); /** Reads multi lines(400 x N bits = 50 x N bytes) from a screen * @param startline starting line number(1-240) @@ -126,14 +130,14 @@ * @param *buffer pointer to buffer * @param screen screen to read from(0 or 1) */ - void ramReadMulti(int startline, int length, uint8_t* buffer, int screen); + void ramReadMultiLine(int startline, int length, uint8_t* buffer, int screen); /** Writes single line (400 bits = 50 bytes) into a screen * @param line line number(1-240) * @param *data pointer to data to write(50 bytes) * @param screen screen to read from(0 or 1) */ - void ramWriteSingle(int line, uint8_t* data, int screen); + void ramWriteSingleLine(int line, uint8_t* data, int screen); /** Writes multi lines(400 x N bits = 50 x N bytes) into a screen * @param startline starting line number(1-240) @@ -141,37 +145,32 @@ * @param *data pointer to data to write * @param screen screen to read from(0 or 1) */ - void ramWriteMulti(int startline, int length, uint8_t* data, int screen); + void ramWriteMultiLine(int startline, int length, uint8_t* data, int screen); /** copies whole data in screen into LCD * @param screen screen to copy (0 or 1) */ void ram2lcd(int startline, int length, int screen); -// /** Enables/disables display. internal memory will not flushed -// * @param disp true = display is on / false = display is off -// */ -// void dispOn(bool disp); - /** read a byte from SRAM (copied from Ser23K256) * @param address The address to read from - * @return the uint8_tacter at that address + * @return the character at that address */ uint8_t ram_read(int address); - + /** read multiple bytes from SRAM into a buffer (copied from Ser23K256) * @param address The SRAM address to read from * @param buffer The buffer to read into (must be big enough!) * @param count The number of bytes to read */ void ram_read(int address, uint8_t * buffer, int count); - + /** write a byte to SRAM (copied from Ser23K256) - * @param address The address SRAM to write to + * @param address The SRAM address to write to * @param byte The byte to write there */ void ram_write(int address, uint8_t byte); - + /** write multiple bytes to SRAM from a buffer (copied from Ser23K256) * @param address The SRAM address write to * @param buffer The buffer to write from @@ -181,17 +180,31 @@ private: // Ser23K256 _ram; - int comflag; - int modeflag; - int clearflag; + + enum MODE { + BYTE_MODE = 0x00, + SEQUENTIAL_MODE = 0x40 + }; + + enum COMMAND { + READ = 0x03, + WRITE = 0x02, + READ_STATUS = 0x05, // called RDSR in datasheet + WRITE_STATUS = 0x01 // called WRSR in datasheet + }; + + int _comflag; + int _modeflag; + int _clearflag; SPI _spi; DigitalOut _csl; DigitalOut _csr; + void _cls_ram( int address ); uint8_t ram_readStatus(); - void ram_writeStatus(uint8_t status); - void ram_prepareCommand(uint8_t command, int address); - void ram_select(); - void ram_deselect(); + void _ram_writeStatus(uint8_t status); + void _ram_prepareCommand(uint8_t command, int address); + void _ram_select(); + void _ram_deselect(); }; #endif