Basic library for SHARP LCD LS027B4DH01/LS027B7DH01
Dependents: AkiSpiLcd_demo AkiSpiLcd_demo2 LCDRAM AkiSpiLcd_example
AkiSpiLcd.h@9:33d5888d1fb9, 2014-09-07 (annotated)
- Committer:
- k4zuki
- Date:
- Sun Sep 07 14:42:13 2014 +0000
- Revision:
- 9:33d5888d1fb9
- Parent:
- 7:0c85f23a6568
- Child:
- 10:eed99ef09e63
.
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 | #ifndef __AKISPILCD_H__ |
k4zuki | 0:b3c8fdd01601 | 6 | #define __AKISPILCD_H |
k4zuki | 0:b3c8fdd01601 | 7 | |
k4zuki | 5:7061ce47a359 | 8 | #include "mbed.h" |
k4zuki | 9:33d5888d1fb9 | 9 | //#include "Ser23K256.h" |
k4zuki | 2:01979b296ab5 | 10 | /** AkiSpiLcd |
k4zuki | 2:01979b296ab5 | 11 | * mbed library for SHARP LCD LS027B4DH01 |
k4zuki | 2:01979b296ab5 | 12 | * |
k4zuki | 2:01979b296ab5 | 13 | * Example: |
k4zuki | 2:01979b296ab5 | 14 | * @code |
k4zuki | 2:01979b296ab5 | 15 | * #include "mbed.h" |
k4zuki | 2:01979b296ab5 | 16 | * #include "AkiSpiLcd.h" |
k4zuki | 2:01979b296ab5 | 17 | * |
k4zuki | 2:01979b296ab5 | 18 | * AkiSpiLcd LCD(MOSI_, SCK_, D2, D5); |
k4zuki | 2:01979b296ab5 | 19 | * extern const uint8_t hogepic[]; |
k4zuki | 2:01979b296ab5 | 20 | * int main() |
k4zuki | 2:01979b296ab5 | 21 | * { |
k4zuki | 2:01979b296ab5 | 22 | * |
k4zuki | 2:01979b296ab5 | 23 | * wait_ms(1); |
k4zuki | 2:01979b296ab5 | 24 | * LCD.cls(); |
k4zuki | 2:01979b296ab5 | 25 | * LCD.updateSingle(10,(uint8_t*)(hogepic+2000)); |
k4zuki | 2:01979b296ab5 | 26 | * LCD.updateMulti(100,(240-100),(uint8_t*)(hogepic)); |
k4zuki | 2:01979b296ab5 | 27 | * |
k4zuki | 2:01979b296ab5 | 28 | * while(1) { |
k4zuki | 2:01979b296ab5 | 29 | * for(int i=0; i<240; i++) { |
k4zuki | 2:01979b296ab5 | 30 | * LCD.updateMulti(i,(240-i),(uint8_t*)(hogepic)); |
k4zuki | 2:01979b296ab5 | 31 | * LCD.updateMulti(0,(i),(uint8_t*)(hogepic+50*(240-i))); |
k4zuki | 2:01979b296ab5 | 32 | * } |
k4zuki | 2:01979b296ab5 | 33 | * } |
k4zuki | 2:01979b296ab5 | 34 | * } |
k4zuki | 2:01979b296ab5 | 35 | * @endcode |
k4zuki | 2:01979b296ab5 | 36 | */ |
k4zuki | 5:7061ce47a359 | 37 | #define RAMLINE_BASE 0x6000 |
k4zuki | 5:7061ce47a359 | 38 | #define RAMMODE_BASE 0x6100 |
k4zuki | 5:7061ce47a359 | 39 | #define SCREEN0_BASE 0x0000 |
k4zuki | 5:7061ce47a359 | 40 | #define SCREEN1_BASE 0x3000 |
k4zuki | 9:33d5888d1fb9 | 41 | #define SCREEN0 0 |
k4zuki | 9:33d5888d1fb9 | 42 | #define SCREEN1 1 |
k4zuki | 5:7061ce47a359 | 43 | |
k4zuki | 0:b3c8fdd01601 | 44 | class AkiSpiLcd |
k4zuki | 0:b3c8fdd01601 | 45 | { |
k4zuki | 0:b3c8fdd01601 | 46 | public: |
k4zuki | 0:b3c8fdd01601 | 47 | /** Constructor |
k4zuki | 0:b3c8fdd01601 | 48 | * @param mosi SPI data input |
k4zuki | 4:844693a617dc | 49 | * @param mosi SPI data output |
k4zuki | 0:b3c8fdd01601 | 50 | * @param sck SPI clock input |
k4zuki | 0:b3c8fdd01601 | 51 | * @param cs HIGH-active chip enable input |
k4zuki | 0:b3c8fdd01601 | 52 | * @param disp HIGH-active display enable input |
k4zuki | 0:b3c8fdd01601 | 53 | */ |
k4zuki | 4:844693a617dc | 54 | AkiSpiLcd(PinName mosi, PinName miso, PinName sck, PinName csl, PinName csr); |
k4zuki | 0:b3c8fdd01601 | 55 | |
k4zuki | 0:b3c8fdd01601 | 56 | /** Clear screen |
k4zuki | 0:b3c8fdd01601 | 57 | */ |
k4zuki | 0:b3c8fdd01601 | 58 | void cls(); |
k4zuki | 0:b3c8fdd01601 | 59 | |
k4zuki | 0:b3c8fdd01601 | 60 | /** Writes single line(400 bits = 50 bytes) |
k4zuki | 0:b3c8fdd01601 | 61 | * @param line line number(1-240) |
k4zuki | 0:b3c8fdd01601 | 62 | * @param *data pointer to data |
k4zuki | 0:b3c8fdd01601 | 63 | */ |
k4zuki | 3:f835b8daf9a0 | 64 | void directUpdateSingle(int line, uint8_t* data); |
k4zuki | 0:b3c8fdd01601 | 65 | |
k4zuki | 0:b3c8fdd01601 | 66 | /** Writes multi lines(400 x N bits = 50 x N bytes) |
k4zuki | 0:b3c8fdd01601 | 67 | * @param line line number(1-240) |
k4zuki | 0:b3c8fdd01601 | 68 | * @param length number of line to write |
k4zuki | 0:b3c8fdd01601 | 69 | * @param *data pointer to data |
k4zuki | 0:b3c8fdd01601 | 70 | */ |
k4zuki | 4:844693a617dc | 71 | void directUpdateMulti(int startline, int length, uint8_t* data); |
k4zuki | 0:b3c8fdd01601 | 72 | |
k4zuki | 0:b3c8fdd01601 | 73 | /** Inverting internal COM signal |
k4zuki | 0:b3c8fdd01601 | 74 | */ |
k4zuki | 0:b3c8fdd01601 | 75 | void cominvert(); |
k4zuki | 3:f835b8daf9a0 | 76 | |
k4zuki | 4:844693a617dc | 77 | /** Reads single line (400 bits = 50 bytes) from a screen |
k4zuki | 4:844693a617dc | 78 | */ |
k4zuki | 4:844693a617dc | 79 | void ramReadSingle(int line, uint8_t* buffer, int screen); |
k4zuki | 4:844693a617dc | 80 | |
k4zuki | 4:844693a617dc | 81 | /** Reads multi lines(400 x N bits = 50 x N bytes) from a screen |
k4zuki | 4:844693a617dc | 82 | */ |
k4zuki | 4:844693a617dc | 83 | void ramReadMulti(int startline, int length, uint8_t* buffer, int screen); |
k4zuki | 3:f835b8daf9a0 | 84 | |
k4zuki | 4:844693a617dc | 85 | /** Writes single line (400 bits = 50 bytes) into a screen |
k4zuki | 3:f835b8daf9a0 | 86 | */ |
k4zuki | 4:844693a617dc | 87 | void ramWriteSingle(int line, uint8_t* data, int screen); |
k4zuki | 4:844693a617dc | 88 | |
k4zuki | 4:844693a617dc | 89 | /** Writes multi lines(400 x N bits = 50 x N bytes) into a screen |
k4zuki | 4:844693a617dc | 90 | */ |
k4zuki | 4:844693a617dc | 91 | void ramWriteMulti(int startline, int length, uint8_t* data, int screen); |
k4zuki | 4:844693a617dc | 92 | |
k4zuki | 4:844693a617dc | 93 | /** copies whole data in screen into LCD |
k4zuki | 4:844693a617dc | 94 | */ |
k4zuki | 7:0c85f23a6568 | 95 | void ram2lcd(int startline, int length, int screen); |
k4zuki | 0:b3c8fdd01601 | 96 | |
k4zuki | 3:f835b8daf9a0 | 97 | // /** Enables/disables display. internal memory will not flushed |
k4zuki | 3:f835b8daf9a0 | 98 | // * @param disp true = display is on / false = display is off |
k4zuki | 3:f835b8daf9a0 | 99 | // */ |
k4zuki | 3:f835b8daf9a0 | 100 | // void dispOn(bool disp); |
k4zuki | 2:01979b296ab5 | 101 | |
k4zuki | 9:33d5888d1fb9 | 102 | /** read a byte from SRAM |
k4zuki | 9:33d5888d1fb9 | 103 | * @param address The address to read from |
k4zuki | 9:33d5888d1fb9 | 104 | * @return the uint8_tacter at that address |
k4zuki | 9:33d5888d1fb9 | 105 | */ |
k4zuki | 9:33d5888d1fb9 | 106 | uint8_t ram_read(int address); |
k4zuki | 9:33d5888d1fb9 | 107 | /** read multiple bytes from SRAM into a buffer |
k4zuki | 9:33d5888d1fb9 | 108 | * @param address The SRAM address to read from |
k4zuki | 9:33d5888d1fb9 | 109 | * @param buffer The buffer to read into (must be big enough!) |
k4zuki | 9:33d5888d1fb9 | 110 | * @param count The number of bytes to read |
k4zuki | 9:33d5888d1fb9 | 111 | */ |
k4zuki | 9:33d5888d1fb9 | 112 | void ram_read(int address, uint8_t * buffer, int count); |
k4zuki | 9:33d5888d1fb9 | 113 | /** write a byte to SRAM |
k4zuki | 9:33d5888d1fb9 | 114 | * @param address The address SRAM to write to |
k4zuki | 9:33d5888d1fb9 | 115 | * @param byte The byte to write there |
k4zuki | 9:33d5888d1fb9 | 116 | */ |
k4zuki | 9:33d5888d1fb9 | 117 | void ram_write(int address, uint8_t byte); |
k4zuki | 9:33d5888d1fb9 | 118 | /** write multiple bytes to SRAM from a buffer |
k4zuki | 9:33d5888d1fb9 | 119 | * @param address The SRAM address write to |
k4zuki | 9:33d5888d1fb9 | 120 | * @param buffer The buffer to write from |
k4zuki | 9:33d5888d1fb9 | 121 | * @param count The number of bytes to write |
k4zuki | 9:33d5888d1fb9 | 122 | */ |
k4zuki | 9:33d5888d1fb9 | 123 | void ram_write(int address, uint8_t * buffer, int count); |
k4zuki | 9:33d5888d1fb9 | 124 | |
k4zuki | 0:b3c8fdd01601 | 125 | private: |
k4zuki | 9:33d5888d1fb9 | 126 | // Ser23K256 _ram; |
k4zuki | 0:b3c8fdd01601 | 127 | int comflag; |
k4zuki | 0:b3c8fdd01601 | 128 | int modeflag; |
k4zuki | 0:b3c8fdd01601 | 129 | int clearflag; |
k4zuki | 0:b3c8fdd01601 | 130 | SPI _spi; |
k4zuki | 3:f835b8daf9a0 | 131 | DigitalOut _csl; |
k4zuki | 3:f835b8daf9a0 | 132 | DigitalOut _csr; |
k4zuki | 9:33d5888d1fb9 | 133 | |
k4zuki | 9:33d5888d1fb9 | 134 | uint8_t ram_readStatus(); |
k4zuki | 9:33d5888d1fb9 | 135 | void ram_writeStatus(uint8_t status); |
k4zuki | 9:33d5888d1fb9 | 136 | void ram_prepareCommand(uint8_t command, int address); |
k4zuki | 9:33d5888d1fb9 | 137 | void ram_select(); |
k4zuki | 9:33d5888d1fb9 | 138 | void ram_deselect(); |
k4zuki | 0:b3c8fdd01601 | 139 | }; |
k4zuki | 0:b3c8fdd01601 | 140 | #endif |