spioled.h

00001 // ALO-095BWNN-J9 test program
00002 // See also "http://www.aitendo.co.jp/product/2099"
00003 
00004 
00005 #ifndef __SPIOLED_H__
00006 #define __SPIOLED_H__
00007 
00008 #include "mbed.h"
00009 #include "small_font.h"
00010 
00011 class SPIOLED {
00012 private:    
00013     DigitalOut  CS,  RES,  DC;
00014     SPI spi; // mosi, miso, sclk
00015 
00016     #define Dis_X_MAX 96-1      // Max X axial direction in screen
00017     #define Dis_Y_MAX 64-1      // Max Y axial direction in screen
00018     #define X_Witch 8           // character's width
00019     #define Y_Witch 8           // character's height
00020 
00021     unsigned int Char_Color; //character's color
00022     unsigned int BGround_Color;
00023 
00024   
00025     
00026     void Init(void){
00027         spi.format(8,0); // nazo
00028         spi.frequency(25000000); // modify later
00029         
00030         // reset
00031         wait_ms(200);
00032          RES = 0;       //Reset active
00033         wait_ms(200);
00034          RES = 1;
00035         
00036         
00037         // initialize sequence
00038          RegWrite(0xae);    //OLED display OFF
00039         
00040         //Row Address
00041          RegWrite(0x75);    /* Set Row Address */
00042          RegWrite(0x00);    /* Start = 0 */
00043          RegWrite(0x3f);    /* End = 63 */
00044          RegWrite(0x15);    /* Set Column Address */
00045          RegWrite(0x00);    /* Start = 0 */
00046          RegWrite(0x5F);    /* End = 96 */
00047         
00048         //Contrast
00049          RegWrite(0xa0);    //Set remap & data format 0111 0000
00050          RegWrite(0x74);
00051          RegWrite(0xa1);    //set display star row RAM
00052          RegWrite(0x00);
00053          RegWrite(0xa2);    //set dispaly offset
00054          RegWrite(0x00);
00055          RegWrite(0xa4);    //Set Display Mode
00056          RegWrite(0xa8);    //Set Multiplex Ratio
00057          RegWrite(0x3f);
00058          RegWrite(0xad);    //Set Master Configuration
00059          RegWrite(0x8f);    //(External VCC Supply Selected)
00060          RegWrite(0xB0);    //Set Power Saving Mode
00061          RegWrite(0x1a);
00062          RegWrite(0xB1);    //Set Phase 1 & 2 Period Adjustment
00063          RegWrite(0x74);
00064          RegWrite(0xb3);     //Set Display Clock Divide Ratio / Oscillator Frequency
00065          RegWrite(0xd0);
00066          RegWrite(0x8A);    //Set Second Pre-charge Speed of Color A
00067          RegWrite(0x81);
00068          RegWrite(0x8B);    //Set Second Pre-charge Speed of Color B
00069          RegWrite(0x82);
00070          RegWrite(0x8C);    //Set Second Pre-charge Speed of Color C
00071          RegWrite(0x83);
00072          RegWrite(0xBB);    //Set Pre-charge Level
00073          RegWrite(0x3e);
00074          RegWrite(0xBE);    //Set VCOMH
00075          RegWrite(0x3e);
00076          RegWrite(0x87);    //Set Master Current Control
00077          RegWrite(0x0f);
00078          RegWrite(0x81);    //Set Contrast Control for Color gAh
00079          RegWrite(0x80);
00080          RegWrite(0x82);    //Set Contrast Control for Color gBh
00081          RegWrite(0x80);
00082          RegWrite(0x83);    //Set Contrast Control for Color gCh
00083          RegWrite(0x80);
00084          RegWrite(0xaf);    //display ON
00085         
00086     }
00087 public:
00088     // constructor
00089     SPIOLED(PinName cs_pin, PinName rst_pin, PinName a0_pin, PinName mosi_pin, PinName miso_pin, PinName sclk_pin)
00090     : CS(cs_pin), RES(rst_pin), DC(a0_pin), spi(mosi_pin, miso_pin, sclk_pin) {
00091         
00092         Init();
00093     }
00094     
00095     
00096     
00097     
00098     void  RegWrite(unsigned char Command)
00099     {
00100          DC = 0;    // Command
00101          CS = 0;    // CS active(toggle OLED)
00102         spi.write(Command);
00103          CS = 1;
00104     }
00105 
00106 
00107 
00108     void  DataWrite(unsigned char c){
00109          DC = 1;    // DATA
00110          CS = 0;    // CS active(toggle OLED)
00111         spi.write(c);
00112          CS = 1;
00113     }
00114 
00115     void  DataWrite_to(unsigned int Dat)
00116     {
00117          DataWrite((unsigned char)((Dat >> 8)& 0x00ff));
00118          DataWrite((unsigned char)(Dat & 0x00ff));
00119     }
00120 
00121 
00122 
00123 
00124     void Draw_Dot(unsigned char x,unsigned char y,unsigned int Color)
00125     {
00126          RegWrite(0x15);
00127          RegWrite(x);
00128          RegWrite(x);
00129          RegWrite(0x75);
00130          RegWrite(y);
00131          RegWrite(y);
00132          DataWrite_to(Color);
00133          DataWrite_to(Color);
00134     }
00135 
00136     void Full_Screen(unsigned int Dot)
00137     {
00138         unsigned char i,j;
00139         BGround_Color = Dot;
00140         for(i=0;i<=64;i++)
00141         {
00142             for(j=0;j<96;j++)
00143             {
00144                 Draw_Dot(j,i,Dot);
00145                 // DataWrite_to(Dot);
00146             }
00147         }
00148     }
00149 
00150     void ChangeFontColor(unsigned int color)
00151     {
00152         Char_Color = color;
00153     }
00154 
00155     void PutChar(unsigned char x,unsigned char y,unsigned int a)
00156     {
00157         int i,j;
00158         unsigned char Temp=0;        
00159         j = 0;
00160         i = 0;
00161         //if(a < 32)a=32;   
00162         for(i=0; i<X_Witch; i++)
00163         {    
00164             Temp = FontLookup[a][i];
00165             for(j=Y_Witch;j!=0;j--){
00166                 if((Temp & 0x80)==0x80){
00167                     Draw_Dot(x+i,y+j,Char_Color);
00168                 }else{
00169                     Draw_Dot(x+i,y+j,BGround_Color);
00170                 }
00171                 Temp = Temp << 1;
00172             }
00173         }
00174         
00175         
00176     }
00177 
00178 void PutChar_ABC(unsigned char x,unsigned char y,unsigned int a)
00179     {
00180         int i,j;
00181         unsigned char Temp=0;        
00182         j = 0;
00183         i = 0;   
00184         for(i=0; i<5; i++)
00185         {    
00186             if(a < 32)a=32;
00187             Temp = FontLookup_ABC[a-32][i];
00188             for(j=Y_Witch;j!=0;j--){
00189                 if((Temp & 0x80)==0x80){
00190                     Draw_Dot(x+i,y+j,Char_Color);
00191                 }else{
00192                     Draw_Dot(x+i,y+j,BGround_Color);
00193                 }
00194                 Temp = Temp << 1;
00195             }
00196         }
00197         
00198         
00199     }
00200 
00201 
00202 
00203 };
00204 
00205 
00206 #endif