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
- Committer:
- charly
- Date:
- 2017-05-21
- Revision:
- 35:b8d3f1e68000
- Parent:
- 34:a9648877491f
File content as of revision 35:b8d3f1e68000:
#ifndef MBED_ST7920_H #define MBED_ST7920_H #include "mbed.h" #include "LCD.h" /** Class for ST7920 and similar display controllers * for Controller-details see http://www.alldatasheet.com/datasheet-pdf/pdf/326219/SITRONIX/ST7920.html * to be copypasted and adapted for other controllers */ class ST7920 : public LCD { public: /** Create a PAR display interface * @param displayproto only supports PAR_8 * @param port GPIO port name to use * @param CS pin connected to CS of display * @param reset pin connected to RESET of display * @param DC pin connected to data/command of display * @param WR pin connected to SDI of display * @param RD pin connected to RS of display * @param name The name used by the parent class to access the interface * @param LCDSIZE_X x size in pixel * @param LCDSIZE_Y y size in pixel */ 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); /** Create a BUS display interface * @param displayproto only supports BUS_8 * @param buspins array of PinName to group as Bus * @param CS pin connected to CS of display * @param reset pin connected to RESET of display * @param DC pin connected to data/command of display * @param WR pin connected to SDI of display * @param RD pin connected to RS of display * @param name The name used by the parent class to access the interface * @param LCDSIZE_X x size in pixel * @param LCDSIZE_Y y size in pixel */ 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); /** Create an SPI display interface * @param displayproto SPI_8 or SPI_16 * @param Hz SPI speed in Hz * @param mosi SPI pin * @param miso SPI pin * @param sclk SPI pin * @param CS pin connected to CS of display * @param reset pin connected to RESET of display * @param DC pin connected to data/command of display * @param name The name used by the parent class to access the interface * @param LCDSIZE_X x size in pixel * @param LCDSIZE_Y y size in pixel */ 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); protected: //WriteInstructionRegister IR void wir(unsigned char data); //WriteDataRegister DR void wdr(unsigned char data); /** Init command sequence */ void init(); public: /** Mirror // not needed, not supported */ virtual void mirrorXY(mirror_t mode); // Clear Screen virtual void cls(void); //Copy screenbuffer to LCD virtual void copy_to_lcd(void); //not supported by hardware virtual void set_contrast(int o); //not supported by hardware void invert(unsigned char o); //not supported by hardware virtual void wr_grambuf(unsigned short* data, unsigned int lenght); //not supported by hardware virtual void wr_gram(unsigned short data); //not supported by hardware virtual void wr_gram(unsigned short data, unsigned int count); //not supported by hardware virtual void wr_data16(unsigned short data); //not supported by hardware virtual void wr_cmd16(unsigned short cmd); //not supported by hardware virtual void wr_cmd8(unsigned char cmd); //not supported by hardware virtual unsigned short rd_gram(bool convert); //not supported by hardware virtual unsigned int rd_reg_data32(unsigned char reg); //not supported by hardware virtual unsigned int rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd); }; #endif