Karl Zweimüller / UniGraphic

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 GraphicsDisplay

Fork of the UniGraphic-Library for monochrome LCDs with ST7920 controller and 128x64-IIC-OLED-Display with SH1106-Controller

/media/uploads/charly/20170522_210344.jpg

/media/uploads/charly/20180425_230623.jpg

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/

Protocols/PAR8.h

Committer:
Geremia
Date:
2015-02-12
Revision:
0:75ec1b3cde17
Child:
1:ff019d22b275

File content as of revision 0:75ec1b3cde17:

#ifndef PAR8_H
#define PAR8_H

#include "mbed.h"
#include "Protocols.h"
//#include "GraphicsDisplay.h"

class PAR8 : public Protocols
{
 public:

    /** Create a PAR8 display interface with a GPIO port and 5 control pins
    *
    * @param port GPIO port 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 
    */ 
    PAR8(PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD);

protected:
  
    /** Send command byte to display controller 
    *
    * @param cmd: byte to send  
    *
    */   
    virtual void wr_cmd(unsigned char cmd);
    
    /** Send data byte to display controller 
    *
    * @param data8: byte to send   
    *
    */   
    virtual void wr_data8(unsigned char data8);
    
    /** Send same data byte to display controller multiple times
    *
    * @param data8: byte to send
    * @param count: how many
    *
    */   
    virtual void wr_data8(unsigned char data8, unsigned int count);
    
    /** Send array of data bytes to display controller
    *
    * @param data8: unsigned char data array
    * @param lenght: lenght of array
    *
    */   
    virtual void wr_data8buf(unsigned char* data8, unsigned int lenght);
    
    /** HW reset sequence (without display init commands)   
    */
    virtual void hw_reset();
    
    /** Set ChipSelect high or low
    * @param enable 0/1   
    */
    virtual void BusEnable(bool enable);
  
   

private:

    PortInOut _port;
    DigitalOut _CS; 
    DigitalOut _reset;
    DigitalOut _DC;
    DigitalOut _WR;
    DigitalOut _RD;
  
};
#endif