Gonzo bonzo / Mbed 2 deprecated Zbyszek_5110

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Dependencies:   mbed

Fork of Nokia5110 by Krissi Yan

NOKIA_5110.cpp@0:fbba596f1039, 2012-01-16 (annotated)

Committer:
Fuzball
Date:
Mon Jan 16 19:47:48 2012 +0000
Revision:
0:fbba596f1039

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


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// Project: Fuzzy LCD Voltmeter





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// File: NOKIA_5110.cpp





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// Author: Chris Yan





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// Created: January, 2012





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// Revised: 





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//  Desc: Supporting code for the NokiaLcd class





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#include "NOKIA_5110.h"





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#include "mbed.h"





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NokiaLcd::NokiaLcd(LcdPins pinout)





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{





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    // SPI





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    LcdSpi = new SPI(pinout.mosi, pinout.miso, pinout.sclk);





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    LcdSpi->format(LCD_SPI_BITS, LCD_SPI_MODE);





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    LcdSpi->frequency(LCD_FREQ);





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    // Control Pins





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    Pins = new DigitalOut*[3];





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    Pins[PIN_RST]   = new DigitalOut(pinout.rst);





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    Pins[PIN_SCE]   = new DigitalOut(pinout.sce);





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    Pins[PIN_DC]    = new DigitalOut(pinout.dc);





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    // Initial Command Instructions, note the initial command mode





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    FunctionSet.V   = CMD_FS_HORIZONTAL_MODE;





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    FunctionSet.H   = CMD_FS_EXTENDED_MODE;





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    FunctionSet.PD  = CMD_FS_ACTIVE_MODE;





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    FunctionChar    = CreateFunctionChar();





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    TempControlChar = CMD_TC_TEMP_2;





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    DispControlChar = CMD_DC_NORMAL_MODE;





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    BiasChar        = CMD_BI_MUX_48;





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    VopChar         = CMD_VOP_7V38;





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}





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void NokiaLcd::ShutdownLcd()





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{





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    FunctionSet.PD  = CMD_FS_POWER_DOWN_MODE;





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    ClearLcdMem();





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    SendFunction( CMD_DC_CLEAR_DISPLAY );





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    SendFunction( CreateFunctionChar() );





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}





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void NokiaLcd::ClearLcdMem()





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{





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    Pins[PIN_SCE]->write(0);    // Chip Select goes low





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    Pins[PIN_DC]->write(1);     // Data/CMD goes high





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    for(int tick = 0; tick <= 503; tick++)





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        LcdSpi->write(0x00);





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    Pins[PIN_SCE]->write(1);    // Chip Select goes high





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}





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void NokiaLcd::TestLcd(char test_pattern)





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{





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    Pins[PIN_SCE]->write(0);    // Chip Select goes low





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    Pins[PIN_DC]->write(1);     // Data/CMD goes high





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    for(int tick = 0; tick <= 503; tick++)





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        LcdSpi->write(test_pattern);         // Command gets sent





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    Pins[PIN_SCE]->write(1);    // Chip Select goes high





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}





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void NokiaLcd::InitLcd()





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{





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    ResetLcd();





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    // Redefine the FunctionChar in case it has changed





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    FunctionSet.V   = CMD_FS_HORIZONTAL_MODE;





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    FunctionSet.H   = CMD_FS_EXTENDED_MODE;





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    FunctionSet.PD  = CMD_FS_ACTIVE_MODE;





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    SendFunction( CreateFunctionChar() );   // Extended CMD set





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    SendFunction( VopChar );                // | Vop





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    SendFunction( TempControlChar );        // | Temp





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    SendFunction( BiasChar );               // | Bias





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    FunctionSet.H   = CMD_FS_BASIC_MODE;





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    SendFunction( CreateFunctionChar() );   // Basic CMD set





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    SendFunction( DispControlChar );        // | Display Mode





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    ClearLcdMem();





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}





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void NokiaLcd::ResetLcd()





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{





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    Pins[PIN_RST]->write(0);    // Reset goes low





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    Pins[PIN_RST]->write(1);    // Reset goes high





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}





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char NokiaLcd::CreateFunctionChar()





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{





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    return ( 0x20 | FunctionSet.PD | FunctionSet.V | FunctionSet.H );





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}





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void NokiaLcd::SendDrawData(char data)





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{





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    Pins[PIN_SCE]->write(0);    // Chip Select goes low





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    Pins[PIN_DC]->write(1);     // Data/CMD goes high





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    LcdSpi->write(data);         // Command gets sent





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    Pins[PIN_SCE]->write(1);    // Chip Select goes high





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}





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void NokiaLcd::DrawChar(char character)





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{





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    for( int i = 0; i < 6; i++)





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        SendDrawData( FONT_6x6[ ((character - 32)*6) + i] );





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}





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void NokiaLcd::SendFunction(char cmd) //TODO:Detection of what H should be





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{





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    Pins[PIN_SCE]->write(0);    // Chip Select goes low





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    Pins[PIN_DC]->write(0);     // Data/CMD goes low





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    LcdSpi->write(cmd);         // Command gets sent





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    Pins[PIN_DC]->write(1);     // Data/CMD goes back to Data mode





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    Pins[PIN_SCE]->write(1);    // Chip Select goes high





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}





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NokiaLcd::~NokiaLcd()





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{





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    ShutdownLcd();





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}