Clock to use with LCD NK5110. You need to use N5110 libraries
Fork of Nokia5110 by
Diff: NOKIA_5110.cpp
- Revision:
- 0:fbba596f1039
diff -r 000000000000 -r fbba596f1039 NOKIA_5110.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NOKIA_5110.cpp Mon Jan 16 19:47:48 2012 +0000 @@ -0,0 +1,128 @@ +// Project: Fuzzy LCD Voltmeter +// File: NOKIA_5110.cpp +// Author: Chris Yan +// Created: January, 2012 +// Revised: +// Desc: Supporting code for the NokiaLcd class + +#include "NOKIA_5110.h" +#include "mbed.h" + +NokiaLcd::NokiaLcd(LcdPins pinout) +{ + // SPI + LcdSpi = new SPI(pinout.mosi, pinout.miso, pinout.sclk); + LcdSpi->format(LCD_SPI_BITS, LCD_SPI_MODE); + LcdSpi->frequency(LCD_FREQ); + + // Control Pins + Pins = new DigitalOut*[3]; + Pins[PIN_RST] = new DigitalOut(pinout.rst); + Pins[PIN_SCE] = new DigitalOut(pinout.sce); + Pins[PIN_DC] = new DigitalOut(pinout.dc); + + // Initial Command Instructions, note the initial command mode + FunctionSet.V = CMD_FS_HORIZONTAL_MODE; + FunctionSet.H = CMD_FS_EXTENDED_MODE; + FunctionSet.PD = CMD_FS_ACTIVE_MODE; + FunctionChar = CreateFunctionChar(); + + TempControlChar = CMD_TC_TEMP_2; + DispControlChar = CMD_DC_NORMAL_MODE; + BiasChar = CMD_BI_MUX_48; + VopChar = CMD_VOP_7V38; +} + +void NokiaLcd::ShutdownLcd() +{ + FunctionSet.PD = CMD_FS_POWER_DOWN_MODE; + + ClearLcdMem(); + SendFunction( CMD_DC_CLEAR_DISPLAY ); + SendFunction( CreateFunctionChar() ); +} + +void NokiaLcd::ClearLcdMem() +{ + Pins[PIN_SCE]->write(0); // Chip Select goes low + Pins[PIN_DC]->write(1); // Data/CMD goes high + + for(int tick = 0; tick <= 503; tick++) + LcdSpi->write(0x00); + + Pins[PIN_SCE]->write(1); // Chip Select goes high +} + +void NokiaLcd::TestLcd(char test_pattern) +{ + Pins[PIN_SCE]->write(0); // Chip Select goes low + Pins[PIN_DC]->write(1); // Data/CMD goes high + + for(int tick = 0; tick <= 503; tick++) + LcdSpi->write(test_pattern); // Command gets sent + + Pins[PIN_SCE]->write(1); // Chip Select goes high +} + +void NokiaLcd::InitLcd() +{ + ResetLcd(); + + // Redefine the FunctionChar in case it has changed + FunctionSet.V = CMD_FS_HORIZONTAL_MODE; + FunctionSet.H = CMD_FS_EXTENDED_MODE; + FunctionSet.PD = CMD_FS_ACTIVE_MODE; + SendFunction( CreateFunctionChar() ); // Extended CMD set + SendFunction( VopChar ); // | Vop + SendFunction( TempControlChar ); // | Temp + SendFunction( BiasChar ); // | Bias + + FunctionSet.H = CMD_FS_BASIC_MODE; + SendFunction( CreateFunctionChar() ); // Basic CMD set + SendFunction( DispControlChar ); // | Display Mode + + ClearLcdMem(); +} + +void NokiaLcd::ResetLcd() +{ + Pins[PIN_RST]->write(0); // Reset goes low + Pins[PIN_RST]->write(1); // Reset goes high +} + +char NokiaLcd::CreateFunctionChar() +{ + return ( 0x20 | FunctionSet.PD | FunctionSet.V | FunctionSet.H ); +} + +void NokiaLcd::SendDrawData(char data) +{ + Pins[PIN_SCE]->write(0); // Chip Select goes low + Pins[PIN_DC]->write(1); // Data/CMD goes high + + LcdSpi->write(data); // Command gets sent + + Pins[PIN_SCE]->write(1); // Chip Select goes high +} + +void NokiaLcd::DrawChar(char character) +{ + for( int i = 0; i < 6; i++) + SendDrawData( FONT_6x6[ ((character - 32)*6) + i] ); +} + +void NokiaLcd::SendFunction(char cmd) //TODO:Detection of what H should be +{ + Pins[PIN_SCE]->write(0); // Chip Select goes low + Pins[PIN_DC]->write(0); // Data/CMD goes low + + LcdSpi->write(cmd); // Command gets sent + + Pins[PIN_DC]->write(1); // Data/CMD goes back to Data mode + Pins[PIN_SCE]->write(1); // Chip Select goes high +} + +NokiaLcd::~NokiaLcd() +{ + ShutdownLcd(); +}