A fork of Chris Yan's Nokia 5110 LCD library, adapted to LPC1347. Should work on a DipCortex M3 and an EzSBC2 dev board.
Fork of Nokia5110 by
NOKIA_5110.cpp
00001 // Project: Nokia5110 - Controlling a NK5110 display from an NXP LPC1768 00002 // File: NOKIA_5110.cpp 00003 // Author: Chris Yan 00004 // Created: January, 2012 00005 // Revised: January, 2014 00006 // Desc: Supporting code for the NokiaLcd class 00007 00008 #include "NOKIA_5110.h" 00009 #include "mbed.h" 00010 00011 NokiaLcd::NokiaLcd(LcdPins pinout) 00012 { 00013 // SPI 00014 LcdSpi = new SPI(pinout.mosi, pinout.miso, pinout.sclk); 00015 LcdSpi->format(LCD_SPI_BITS, LCD_SPI_MODE); 00016 LcdSpi->frequency(LCD_FREQ); 00017 00018 // Control Pins 00019 Pins = new DigitalOut*[3]; 00020 Pins[PIN_RST] = new DigitalOut(pinout.rst); 00021 Pins[PIN_SCE] = new DigitalOut(pinout.sce); 00022 Pins[PIN_DC] = new DigitalOut(pinout.dc); 00023 00024 // Initial Command Instructions, note the initial command mode 00025 FunctionSet.V = CMD_FS_HORIZONTAL_MODE; 00026 FunctionSet.H = CMD_FS_EXTENDED_MODE; 00027 FunctionSet.PD = CMD_FS_ACTIVE_MODE; 00028 FunctionChar = CreateFunctionChar(); 00029 00030 TempControlChar = CMD_TC_TEMP_2; 00031 DispControlChar = CMD_DC_NORMAL_MODE; 00032 BiasChar = CMD_BI_MUX_48; 00033 VopChar = CMD_VOP_7V38; 00034 } 00035 00036 void NokiaLcd::ShutdownLcd() 00037 { 00038 FunctionSet.PD = CMD_FS_POWER_DOWN_MODE; 00039 00040 ClearLcdMem(); 00041 SendFunction( CMD_DC_CLEAR_DISPLAY ); 00042 SendFunction( CreateFunctionChar() ); 00043 } 00044 00045 void NokiaLcd::ClearLcdMem() 00046 { 00047 for(int tick = 0; tick <= 503; tick++) 00048 LcdSpi->write(0x00); 00049 } 00050 00051 void NokiaLcd::TestLcd(char test_pattern) 00052 { 00053 for(int tick = 0; tick <= 504; tick++) 00054 LcdSpi->write(test_pattern); // Command gets sent 00055 } 00056 00057 void NokiaLcd::InitLcd() 00058 { 00059 ResetLcd(); 00060 Pins[PIN_SCE]->write(0); // Chip Select goes low 00061 00062 // Redefine the FunctionChar in case it has changed 00063 FunctionSet.V = CMD_FS_HORIZONTAL_MODE; 00064 FunctionSet.H = CMD_FS_EXTENDED_MODE; 00065 FunctionSet.PD = CMD_FS_ACTIVE_MODE; 00066 SendFunction( CreateFunctionChar() ); // Extended CMD set 00067 SendFunction( VopChar ); // | Vop 00068 SendFunction( TempControlChar ); // | Temp 00069 SendFunction( BiasChar ); // | Bias 00070 00071 FunctionSet.H = CMD_FS_BASIC_MODE; 00072 SendFunction( CreateFunctionChar() ); // Basic CMD set 00073 SendFunction( DispControlChar ); // | Display Mode 00074 00075 ClearLcdMem(); 00076 Pins[PIN_DC]->write(1); // Data/CMD goes back to Data mode 00077 } 00078 00079 void NokiaLcd::ResetLcd() 00080 { 00081 Pins[PIN_RST]->write(0); // Reset goes low 00082 Pins[PIN_RST]->write(1); // Reset goes high 00083 } 00084 00085 char NokiaLcd::CreateFunctionChar() 00086 { 00087 return ( 0x20 | FunctionSet.PD | FunctionSet.V | FunctionSet.H ); 00088 } 00089 00090 void NokiaLcd::SendDrawData(char data) 00091 { 00092 LcdSpi->write(data); // Command gets sent 00093 } 00094 00095 void NokiaLcd::DrawChar(char character) 00096 { 00097 for( int i = 0; i < 6; i++) 00098 SendDrawData( FONT_6x6[ ((character - 32)*6) + i] ); 00099 } 00100 00101 void NokiaLcd::DrawString(char* s) 00102 { 00103 char len = strlen(s); 00104 for( int idx = 0; idx < len; idx++ ) 00105 { 00106 for( int i = 0; i < 6; i++) 00107 SendDrawData( FONT_6x6[ ((s[idx] - 32)*6) + i] ); 00108 } 00109 } 00110 00111 void NokiaLcd::DrawFrameChar(char character) 00112 { 00113 for( int i = 0; i < 6; i++) 00114 SendDrawData((( FONT_6x6[ ((character - 32)*6) + i] ) << 1 ) | 0x81); 00115 } 00116 00117 void NokiaLcd::DrawNegFrameChar(char character) 00118 { 00119 for( int i = 0; i < 6; i++) 00120 SendDrawData(~(( FONT_6x6[ ((character - 32)*6) + i] ) << 1 ) | 0x81); 00121 } 00122 00123 char* NokiaLcd::NumToStr(int num) 00124 { 00125 if(num <= 0) 00126 return "0"; 00127 00128 double length = 0; 00129 int tlen = 0; 00130 int temp = 1; 00131 char c; 00132 00133 // Get number of digits 00134 while( temp <= num ) 00135 { 00136 temp *= 10; 00137 length++; 00138 } 00139 tlen = length; 00140 char* numString = new char[tlen+1]; 00141 00142 // Convert each place in number to a stand-alone representative number 00143 temp = 0; 00144 for(int idx = pow(10, length); idx>1; idx = (idx/10)) 00145 { 00146 c = (char)( ((num % idx)-(num % (idx/10)))/(idx/10) + 48); 00147 numString[temp] = c; 00148 temp++; 00149 } 00150 numString[temp] = '\0'; 00151 return numString; 00152 } 00153 00154 void NokiaLcd::SetXY(char x, char y) 00155 { 00156 if( (x > 83) || (y > 5) ) 00157 return; 00158 00159 SendFunction( x | 0x80 ); 00160 SendFunction( y | 0x40 ); 00161 } 00162 00163 void NokiaLcd::SendFunction(char cmd) //TODO:Detection of what H should be 00164 { 00165 Pins[PIN_DC]->write(0); // Data/CMD goes low 00166 LcdSpi->write(cmd); // Command gets sent 00167 Pins[PIN_DC]->write(1); // Data/CMD goes back to Data mode 00168 } 00169 00170 NokiaLcd::~NokiaLcd() 00171 { 00172 ShutdownLcd(); 00173 }
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