UniGraphic-Fork for ST7920-LCD-controller and SH1106. Tested with 128x64 LCD with SPI and 128x64-OLED with IIC
Dependents: UniGraphic-St7920-Test AfficheurUTILECO
Fork of UniGraphic by
Fork of the UniGraphic-Library for monochrome LCDs with ST7920 controller and 128x64-IIC-OLED-Display with SH1106-Controller
Had to adapt LCD for following reasons:
- Give access to screenbuffer buffer[] to parent class
- pixel() and pixel_read() as they are hardware-dependent
- added reset-pin to IIC-Interface
GraphicDisplay:: sends buffer to LCD when auto_update is set to true.
Testprogram for ST7920 can be found here:
https://developer.mbed.org/users/charly/code/UniGraphic-St7920-Test/
Inits/ST7920.h@38:1b6f9fc49a03, 2018-10-30 (annotated)
- Committer:
- charly
- Date:
- Tue Oct 30 20:00:29 2018 +0000
- Revision:
- 38:1b6f9fc49a03
- Parent:
- 35:b8d3f1e68000
some modifications.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
charly | 34:a9648877491f | 1 | #ifndef MBED_ST7920_H |
charly | 34:a9648877491f | 2 | #define MBED_ST7920_H |
charly | 34:a9648877491f | 3 | |
charly | 34:a9648877491f | 4 | #include "mbed.h" |
charly | 34:a9648877491f | 5 | #include "LCD.h" |
charly | 34:a9648877491f | 6 | |
charly | 34:a9648877491f | 7 | /** Class for ST7920 and similar display controllers |
charly | 35:b8d3f1e68000 | 8 | * for Controller-details see http://www.alldatasheet.com/datasheet-pdf/pdf/326219/SITRONIX/ST7920.html |
charly | 34:a9648877491f | 9 | * to be copypasted and adapted for other controllers |
charly | 34:a9648877491f | 10 | */ |
charly | 34:a9648877491f | 11 | class ST7920 : public LCD |
charly | 34:a9648877491f | 12 | { |
charly | 34:a9648877491f | 13 | |
charly | 34:a9648877491f | 14 | public: |
charly | 34:a9648877491f | 15 | |
charly | 34:a9648877491f | 16 | /** Create a PAR display interface |
charly | 34:a9648877491f | 17 | * @param displayproto only supports PAR_8 |
charly | 34:a9648877491f | 18 | * @param port GPIO port name to use |
charly | 34:a9648877491f | 19 | * @param CS pin connected to CS of display |
charly | 34:a9648877491f | 20 | * @param reset pin connected to RESET of display |
charly | 34:a9648877491f | 21 | * @param DC pin connected to data/command of display |
charly | 34:a9648877491f | 22 | * @param WR pin connected to SDI of display |
charly | 34:a9648877491f | 23 | * @param RD pin connected to RS of display |
charly | 34:a9648877491f | 24 | * @param name The name used by the parent class to access the interface |
charly | 35:b8d3f1e68000 | 25 | * @param LCDSIZE_X x size in pixel |
charly | 35:b8d3f1e68000 | 26 | * @param LCDSIZE_Y y size in pixel |
charly | 34:a9648877491f | 27 | */ |
charly | 34:a9648877491f | 28 | ST7920(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name, unsigned int LCDSIZE_X = 132, unsigned int LCDSIZE_Y = 64); |
charly | 34:a9648877491f | 29 | |
charly | 34:a9648877491f | 30 | /** Create a BUS display interface |
charly | 34:a9648877491f | 31 | * @param displayproto only supports BUS_8 |
charly | 34:a9648877491f | 32 | * @param buspins array of PinName to group as Bus |
charly | 34:a9648877491f | 33 | * @param CS pin connected to CS of display |
charly | 34:a9648877491f | 34 | * @param reset pin connected to RESET of display |
charly | 34:a9648877491f | 35 | * @param DC pin connected to data/command of display |
charly | 34:a9648877491f | 36 | * @param WR pin connected to SDI of display |
charly | 34:a9648877491f | 37 | * @param RD pin connected to RS of display |
charly | 34:a9648877491f | 38 | * @param name The name used by the parent class to access the interface |
charly | 35:b8d3f1e68000 | 39 | * @param LCDSIZE_X x size in pixel |
charly | 35:b8d3f1e68000 | 40 | * @param LCDSIZE_Y y size in pixel |
charly | 34:a9648877491f | 41 | */ |
charly | 34:a9648877491f | 42 | ST7920(proto_t displayproto, PinName* buspins, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name, unsigned int LCDSIZE_X = 132, unsigned int LCDSIZE_Y = 64); |
charly | 34:a9648877491f | 43 | |
charly | 34:a9648877491f | 44 | /** Create an SPI display interface |
charly | 34:a9648877491f | 45 | * @param displayproto SPI_8 or SPI_16 |
charly | 34:a9648877491f | 46 | * @param Hz SPI speed in Hz |
charly | 34:a9648877491f | 47 | * @param mosi SPI pin |
charly | 34:a9648877491f | 48 | * @param miso SPI pin |
charly | 34:a9648877491f | 49 | * @param sclk SPI pin |
charly | 34:a9648877491f | 50 | * @param CS pin connected to CS of display |
charly | 34:a9648877491f | 51 | * @param reset pin connected to RESET of display |
charly | 34:a9648877491f | 52 | * @param DC pin connected to data/command of display |
charly | 34:a9648877491f | 53 | * @param name The name used by the parent class to access the interface |
charly | 35:b8d3f1e68000 | 54 | * @param LCDSIZE_X x size in pixel |
charly | 35:b8d3f1e68000 | 55 | * @param LCDSIZE_Y y size in pixel |
charly | 34:a9648877491f | 56 | */ |
charly | 34:a9648877491f | 57 | ST7920(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char* name, unsigned int LCDSIZE_X = 132, unsigned int LCDSIZE_Y = 64); |
charly | 34:a9648877491f | 58 | |
charly | 34:a9648877491f | 59 | |
charly | 34:a9648877491f | 60 | |
charly | 34:a9648877491f | 61 | protected: |
charly | 34:a9648877491f | 62 | |
charly | 34:a9648877491f | 63 | //WriteInstructionRegister IR |
charly | 34:a9648877491f | 64 | void wir(unsigned char data); |
charly | 34:a9648877491f | 65 | |
charly | 34:a9648877491f | 66 | //WriteDataRegister DR |
charly | 34:a9648877491f | 67 | void wdr(unsigned char data); |
charly | 34:a9648877491f | 68 | |
charly | 34:a9648877491f | 69 | /** Init command sequence |
charly | 34:a9648877491f | 70 | */ |
charly | 34:a9648877491f | 71 | void init(); |
charly | 34:a9648877491f | 72 | |
charly | 34:a9648877491f | 73 | public: |
charly | 34:a9648877491f | 74 | /** Mirror |
charly | 35:b8d3f1e68000 | 75 | // not needed, not supported |
charly | 34:a9648877491f | 76 | */ |
charly | 34:a9648877491f | 77 | virtual void mirrorXY(mirror_t mode); |
charly | 34:a9648877491f | 78 | |
charly | 35:b8d3f1e68000 | 79 | // Clear Screen |
charly | 34:a9648877491f | 80 | virtual void cls(void); |
charly | 34:a9648877491f | 81 | |
charly | 35:b8d3f1e68000 | 82 | //Copy screenbuffer to LCD |
charly | 34:a9648877491f | 83 | virtual void copy_to_lcd(void); |
charly | 34:a9648877491f | 84 | |
charly | 35:b8d3f1e68000 | 85 | //not supported by hardware |
charly | 34:a9648877491f | 86 | virtual void set_contrast(int o); |
charly | 34:a9648877491f | 87 | |
charly | 35:b8d3f1e68000 | 88 | //not supported by hardware |
charly | 34:a9648877491f | 89 | void invert(unsigned char o); |
charly | 34:a9648877491f | 90 | |
charly | 35:b8d3f1e68000 | 91 | //not supported by hardware |
charly | 34:a9648877491f | 92 | virtual void wr_grambuf(unsigned short* data, unsigned int lenght); |
charly | 34:a9648877491f | 93 | |
charly | 35:b8d3f1e68000 | 94 | //not supported by hardware |
charly | 34:a9648877491f | 95 | virtual void wr_gram(unsigned short data); |
charly | 34:a9648877491f | 96 | |
charly | 35:b8d3f1e68000 | 97 | //not supported by hardware |
charly | 34:a9648877491f | 98 | virtual void wr_gram(unsigned short data, unsigned int count); |
charly | 34:a9648877491f | 99 | |
charly | 35:b8d3f1e68000 | 100 | //not supported by hardware |
charly | 34:a9648877491f | 101 | virtual void wr_data16(unsigned short data); |
charly | 34:a9648877491f | 102 | |
charly | 35:b8d3f1e68000 | 103 | //not supported by hardware |
charly | 34:a9648877491f | 104 | virtual void wr_cmd16(unsigned short cmd); |
charly | 34:a9648877491f | 105 | |
charly | 35:b8d3f1e68000 | 106 | //not supported by hardware |
charly | 34:a9648877491f | 107 | virtual void wr_cmd8(unsigned char cmd); |
charly | 34:a9648877491f | 108 | |
charly | 35:b8d3f1e68000 | 109 | //not supported by hardware |
charly | 34:a9648877491f | 110 | virtual unsigned short rd_gram(bool convert); |
charly | 34:a9648877491f | 111 | |
charly | 35:b8d3f1e68000 | 112 | //not supported by hardware |
charly | 34:a9648877491f | 113 | virtual unsigned int rd_reg_data32(unsigned char reg); |
charly | 34:a9648877491f | 114 | |
charly | 35:b8d3f1e68000 | 115 | //not supported by hardware |
charly | 34:a9648877491f | 116 | virtual unsigned int rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd); |
charly | 34:a9648877491f | 117 | |
charly | 34:a9648877491f | 118 | }; |
charly | 34:a9648877491f | 119 | #endif |