main.cpp

00001 /*Código escrito por Marcelo Costanzo Miranda
00002 *Projeto feito conforme pedido do professor Silvio Szafir 
00003 *
00004 * Placa ST discovery com display ePaper funcionando como LCD 20x4
00005 *
00006 *   São Paulo, SP
00007 *    30 de agosto de 2018
00008 *
00009 */
00010 
00011 #include "mbed.h"
00012 #include "EPD_GDE021A1.h"
00013 
00014 
00015 
00016 #define EPD_CS       PA_15
00017 #define EPD_DC       PB_11
00018 #define EPD_RESET    PB_2
00019 #define EPD_BUSY     PA_8
00020 #define EPD_POWER    PB_10
00021 #define EPD_SPI_MOSI PB_5
00022 #define EPD_SPI_MISO PB_4
00023 #define EPD_SPI_SCK  PB_3
00024 
00025 EPD_GDE021A1 epd(EPD_CS, EPD_DC, EPD_RESET, EPD_BUSY, EPD_POWER, EPD_SPI_MOSI, EPD_SPI_MISO, EPD_SPI_SCK);
00026 
00027 DigitalOut led1(LED1);
00028 DigitalIn button(PA_0);
00029 Ticker flipper;
00030 Serial pc(USBTX, USBRX); // tx, rx
00031 
00032 //width 48
00033 //height 26
00034 
00035 static uint8_t Battery_img[] = {
00036 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
00037 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
00038 0xfe, 0xff, 0xff, 0xff, 0xff, 0x0f, 
00039 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x0c, 
00040 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00041 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00042 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00043 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00044 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x18, 
00045 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00046 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00047 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00048 0xfe, 0xff, 0xff, 0x3f, 0xff, 0x39, 
00049 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00050 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00051 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00052 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x38, 
00053 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x18, 
00054 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00055 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00056 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00057 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x0c, 
00058 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x0c, 
00059 0xfe, 0xff, 0xff, 0xff, 0xff, 0x0f, 
00060 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
00061 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
00062 };
00063 
00064 void flip() 
00065 {
00066     led1=!led1;  
00067 }
00068 
00069 uint16_t x=0, y=0, i=0;
00070 char c, c1, c2;
00071 char s[100];
00072 
00073 
00074 int main()
00075 {
00076 
00077     flipper.attach(&flip, 0.1);//interrupção para piscar o led, debug para saber se o uC travou
00078     
00079     
00080     //mensagens de boas vindas
00081     epd.Clear(EPD_COLOR_WHITE);  
00082     epd.DisplayStringAtLine(5, (uint8_t*)"MBED", CENTER_MODE);
00083     epd.DisplayStringAtLine(3, (uint8_t*)"Epaper display", LEFT_MODE);
00084     epd.DisplayStringAtLine(2, (uint8_t*)"demo", LEFT_MODE);
00085     epd.DrawImage(130, 0, 48, 26, Battery_img);
00086     epd.DrawRect(50, 4, 60, 4);
00087     epd.RefreshDisplay();
00088     wait(1);
00089     epd.Clear(EPD_COLOR_WHITE);  
00090     epd.RefreshDisplay();
00091     epd.Clear(EPD_COLOR_WHITE); 
00092     
00093     
00094     epd.SetFont(&Font16);
00095     while(1)
00096     {
00097        
00098 //----------ROTINA PARA ESCREVER NO EPAPER------------------------   
00099 
00100         pc.printf("\nEscolha a linha Y, de 0 a 3:");  
00101         c = pc.getc();
00102         switch (c)
00103                 {
00104                     case '3': y = 0;break;
00105                     case '2': y = 4;break;
00106                     case '1': y = 8;break;
00107                     case '0': y = 12;break;
00108                 }
00109         pc.printf("\n%u",y);
00110         
00111         pc.printf("\nEscolha a coluna X, de 00 a 19:");  
00112         c1 = pc.getc(); 
00113         c2 = pc.getc();   
00114         switch (c2)
00115                 {
00116                     case '0': x = 0;break;
00117                     case '1': x = 1;break;
00118                     case '2': x = 2;break;
00119                     case '3': x = 3;break;
00120                     case '4': x = 4;break;
00121                     case '5': x = 5;break;
00122                     case '6': x = 6;break;
00123                     case '7': x = 7;break;
00124                     case '8': x = 8;break;
00125                     case '9': x = 9;break;
00126                 } 
00127            
00128         switch (c1)
00129                 {
00130                     case '0': x = x + 0;break;
00131                     case '1': x = x + 10;break;
00132                     
00133                 }    
00134                 
00135                 x = x * 10;
00136         pc.printf("\n%u",x);
00137             
00138             pc.printf("\nEntre com seu texto (com # no final):");
00139             
00140            do
00141            {
00142                c = pc.getc();
00143                s[i] = c;
00144                ++i;
00145             }
00146             while(c!='#'); //entra em loop, coletando os caracteres até achar o #, e então sai do loop
00147             
00148             s[i-1] = '\0';   //elimina o caracter terminador de strings
00149             pc.printf("%s", s);
00150             for(int o = 0; o < i - 1; o++)
00151             {
00152                 epd.DisplayChar(x, y,s[o]);
00153                 x = x + 10;
00154             }
00155             epd.RefreshDisplay();
00156             i=0;
00157 
00158         //FIM DA ROTINA PARA ESCREVER NO EPAPER 
00159             
00160     }//FIM DA WHILE
00161 }//FIM DO PROGRAMA