Librarie pour ecran 128x32 de MyLab
C12832.cpp
- Committer:
- lucas_favre
- Date:
- 2016-03-29
- Revision:
- 11:c00a727f140f
- Child:
- 12:00bbd42614c7
File content as of revision 11:c00a727f140f:
/* mbed library for MyLab 128*32 pixel LCD */ // optional defines : // #define debug_lcd 1 #include "C12832.h" #include "mbed.h" #include "stdio.h" #include "Small_7.h" #include "Arial_9.h" #define BPP 1 // Bits per pixel C12832::C12832(PinName rs, PinName e,PinName rw, PinName a0,PinName cs,PinName d0, PinName d1, PinName d2, PinName d3,PinName d4,PinName d5,PinName d6,PinName d7,const char* name) : GraphicsDisplay(name),_rs(rs), _e(e), _a0(a0),_cs(cs),_rw(rw), _d(d0, d1, d2, d3,d4,d5,d6,d7) { _cs = 1; RESET(); Delay(1000); CLEAR_ADC(); //Normal disrect (SEG0-SEG128) SET_SHL(); // SHL 1,COM33-COM0 SET_BIAS(); // 1/7 BIAS Power_Control(0x07); //Booster circuit: ON Voltage regulator circuit: ON Voltage follower circuit: ON Regulor_Resistor_Select(0x05); //V0 voltage regulator internal resistance ratio register value and (1 + Rb/Ra) ratio (Reference value) 5.5 Set_Contrast_Control_Register(19); Initial_Dispay_Line(0x00); //Dispay Line 0 wr_cmd(0xF8); //select booster ratio wr_cmd(0x00); //4X DISPLAY_ON(); // clear and update LCD memset(buffer,0x00,512); // clear display buffer copy_to_lcd(); auto_up = 1; // switch on auto update // dont do this by default. Make the user call claim(stdout); // redirekt printf to lcd locate(0,0); set_font((unsigned char*)Small_7); // standart font } void C12832::Delay(uint32_t n) { uint32_t a; for (a = 0; a < n; a++); } //Specify DDRAM line for COM0 0~63 void C12832::Initial_Dispay_Line(unsigned char line) { line|=0x40; wr_cmd(line); return; } void C12832::Power_Control(unsigned char vol) { wr_cmd((0x28|vol)); return; } /* Regulor resistor select ** 1+Rb/Ra Vo=(1+Rb/Ra)Vev Vev=(1-(63-a)/162)Vref 2.1v ** 0 3.0 4 5.0(default) ** 1 3.5 5 5.5 ** 2 4 6 6 ** 3 4.5 7 6.4 */ void C12832::Regulor_Resistor_Select(unsigned char r) { wr_cmd((0x20|r)); return; } //a(0-63) 32default Vev=(1-(63-a)/162)Vref 2.1v void C12832::Set_Contrast_Control_Register(unsigned char mod) { wr_cmd(0x81); wr_cmd(mod); return; } int C12832::width() { return 128; } int C12832::height() { return 32; } void C12832::invert(unsigned int o) { if(o == 0) wr_cmd(0xA6); else wr_cmd(0xA7); } void C12832::set_contrast(unsigned int o) { contrast = o; wr_cmd(0x81); // set volume wr_cmd(o & 0x3F); } unsigned int C12832::get_contrast(void) { return(contrast); } // write command to lcd controller void C12832::wr_cmd(unsigned char cmd) { _cs =0; _a0 = 0; _rw = 0; _d = cmd; LPC_GPIO2->FIODIR |= 0xFF; _e = 1; asm("nop"); _e = 0; LPC_GPIO2->FIODIR &= ~0xFF; _rw=1; _cs=1; } // write data to lcd controller void C12832::wr_dat(unsigned char dat) { _cs = 0; _a0 = 1; _rw = 0; _d = dat; LPC_GPIO2->FIODIR |= 0xFF; _e = 1; asm("nop"); _e = 0; LPC_GPIO2->FIODIR &= ~0xFF; _rw=1; _cs=1; } // set one pixel in buffer void C12832::pixel(int x, int y, int color) { // first check parameter if(x > 128 || y > 32 || x < 0 || y < 0) return; if(draw_mode == NORMAL) { if(color == 0) buffer[x + ((y/8) * 128)] &= ~(1 << (y%8)); // erase pixel else buffer[x + ((y/8) * 128)] |= (1 << (y%8)); // set pixel } else { // XOR mode if(color == 1) buffer[x + ((y/8) * 128)] ^= (1 << (y%8)); // xor pixel } } // update lcd void C12832::copy_to_lcd(void) { int i=0; //page 0 wr_cmd(0x00); // set column low nibble 0 wr_cmd(0x10); // set column hi nibble 0 wr_cmd(0xB0); // set page address 0 _a0 = 1; for(i=0; i<128; i++) { wr_dat(buffer[i]); } // page 1 wr_cmd(0x00); // set column low nibble 0 wr_cmd(0x10); // set column hi nibble 0 wr_cmd(0xB1); // set page address 1 _a0 = 1; for(i=128; i<256; i++) { wr_dat(buffer[i]); } //page 2 wr_cmd(0x00); // set column low nibble 0 wr_cmd(0x10); // set column hi nibble 0 wr_cmd(0xB2); // set page address 2 _a0 = 1; for(i=256; i<384; i++) { wr_dat(buffer[i]); } //page 3 wr_cmd(0x00); // set column low nibble 0 wr_cmd(0x10); // set column hi nibble 0 wr_cmd(0xB3); // set page address 3 _a0 = 1; _cs = 0; for(i=384; i<512; i++) { wr_dat(buffer[i]); } } void C12832::cls(void) { memset(buffer,0x00,512); // clear display buffer copy_to_lcd(); } void C12832::line(int x0, int y0, int x1, int y1, int color) { int dx = 0, dy = 0; int dx_sym = 0, dy_sym = 0; int dx_x2 = 0, dy_x2 = 0; int di = 0; dx = x1-x0; dy = y1-y0; // if (dx == 0) { /* vertical line */ // if (y1 > y0) vline(x0,y0,y1,color); // else vline(x0,y1,y0,color); // return; // } if (dx > 0) { dx_sym = 1; } else { dx_sym = -1; } // if (dy == 0) { /* horizontal line */ // if (x1 > x0) hline(x0,x1,y0,color); // else hline(x1,x0,y0,color); // return; // } if (dy > 0) { dy_sym = 1; } else { dy_sym = -1; } dx = dx_sym*dx; dy = dy_sym*dy; dx_x2 = dx*2; dy_x2 = dy*2; if (dx >= dy) { di = dy_x2 - dx; while (x0 != x1) { pixel(x0, y0, color); x0 += dx_sym; if (di<0) { di += dy_x2; } else { di += dy_x2 - dx_x2; y0 += dy_sym; } } pixel(x0, y0, color); } else { di = dx_x2 - dy; while (y0 != y1) { pixel(x0, y0, color); y0 += dy_sym; if (di < 0) { di += dx_x2; } else { di += dx_x2 - dy_x2; x0 += dx_sym; } } pixel(x0, y0, color); } if(auto_up) copy_to_lcd(); } void C12832::rect(int x0, int y0, int x1, int y1, int color) { if (x1 > x0) line(x0,y0,x1,y0,color); else line(x1,y0,x0,y0,color); if (y1 > y0) line(x0,y0,x0,y1,color); else line(x0,y1,x0,y0,color); if (x1 > x0) line(x0,y1,x1,y1,color); else line(x1,y1,x0,y1,color); if (y1 > y0) line(x1,y0,x1,y1,color); else line(x1,y1,x1,y0,color); if(auto_up) copy_to_lcd(); } void C12832::fillrect(int x0, int y0, int x1, int y1, int color) { int l,c,i; if(x0 > x1) { i = x0; x0 = x1; x1 = i; } if(y0 > y1) { i = y0; y0 = y1; y1 = i; } for(l = x0; l<= x1; l ++) { for(c = y0; c<= y1; c++) { pixel(l,c,color); } } if(auto_up) copy_to_lcd(); } void C12832::circle(int x0, int y0, int r, int color) { int draw_x0, draw_y0; int draw_x1, draw_y1; int draw_x2, draw_y2; int draw_x3, draw_y3; int draw_x4, draw_y4; int draw_x5, draw_y5; int draw_x6, draw_y6; int draw_x7, draw_y7; int xx, yy; int di; //WindowMax(); if (r == 0) { /* no radius */ return; } draw_x0 = draw_x1 = x0; draw_y0 = draw_y1 = y0 + r; if (draw_y0 < height()) { pixel(draw_x0, draw_y0, color); /* 90 degree */ } draw_x2 = draw_x3 = x0; draw_y2 = draw_y3 = y0 - r; if (draw_y2 >= 0) { pixel(draw_x2, draw_y2, color); /* 270 degree */ } draw_x4 = draw_x6 = x0 + r; draw_y4 = draw_y6 = y0; if (draw_x4 < width()) { pixel(draw_x4, draw_y4, color); /* 0 degree */ } draw_x5 = draw_x7 = x0 - r; draw_y5 = draw_y7 = y0; if (draw_x5>=0) { pixel(draw_x5, draw_y5, color); /* 180 degree */ } if (r == 1) { return; } di = 3 - 2*r; xx = 0; yy = r; while (xx < yy) { if (di < 0) { di += 4*xx + 6; } else { di += 4*(xx - yy) + 10; yy--; draw_y0--; draw_y1--; draw_y2++; draw_y3++; draw_x4--; draw_x5++; draw_x6--; draw_x7++; } xx++; draw_x0++; draw_x1--; draw_x2++; draw_x3--; draw_y4++; draw_y5++; draw_y6--; draw_y7--; if ( (draw_x0 <= width()) && (draw_y0>=0) ) { pixel(draw_x0, draw_y0, color); } if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) { pixel(draw_x1, draw_y1, color); } if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) { pixel(draw_x2, draw_y2, color); } if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) { pixel(draw_x3, draw_y3, color); } if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) { pixel(draw_x4, draw_y4, color); } if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) { pixel(draw_x5, draw_y5, color); } if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) { pixel(draw_x6, draw_y6, color); } if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) { pixel(draw_x7, draw_y7, color); } } if(auto_up) copy_to_lcd(); } void C12832::fillcircle(int x, int y, int r, int color) { int i,up; up = auto_up; auto_up = 0; // off for (i = 0; i <= r; i++) circle(x,y,i,color); auto_up = up; if(auto_up) copy_to_lcd(); } void C12832::setmode(int mode) { draw_mode = mode; } void C12832::locate(int x, int y) { char_x = x; char_y = y; } int C12832::columns() { return width() / font[1]; } int C12832::rows() { return height() / font[2]; } int C12832::_putc(int value) { if (value == '\n') { // new line char_x = 0; char_y = char_y + font[2]; if (char_y >= height() - font[2]) { char_y = 0; } } else { character(char_x, char_y, value); if(auto_up) copy_to_lcd(); } return value; } void C12832::character(int x, int y, int c) { unsigned int hor,vert,offset,bpl,j,i,b; unsigned char* zeichen; unsigned char z,w; if ((c < 31) || (c > 127)) return; // test char range // read font parameter from start of array offset = font[0]; // bytes / char hor = font[1]; // get hor size of font vert = font[2]; // get vert size of font bpl = font[3]; // bytes per line if (char_x + hor > width()) { char_x = 0; char_y = char_y + vert; if (char_y >= height() - font[2]) { char_y = 0; } } zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap w = zeichen[0]; // width of actual char // construct the char into the buffer for (j=0; j<vert; j++) { // vert line for (i=0; i<hor; i++) { // horz line z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1]; b = 1 << (j & 0x07); if (( z & b ) == 0x00) { pixel(x+i,y+j,0); } else { pixel(x+i,y+j,1); } } } char_x += w; } void C12832::set_font(unsigned char* f) { font = f; } void C12832::set_auto_up(unsigned int up) { if(up ) auto_up = 1; else auto_up = 0; } unsigned int C12832::get_auto_up(void) { return (auto_up); } void C12832::print_bm(Bitmap bm, int x, int y) { int h,v,b; char d; for(v=0; v < bm.ySize; v++) { // lines for(h=0; h < bm.xSize; h++) { // pixel if(h + x > 127) break; if(v + y > 31) break; d = bm.data[bm.Byte_in_Line * v + ((h & 0xF8) >> 3)]; b = 0x80 >> (h & 0x07); if((d & b) == 0) { pixel(x+h,y+v,0); } else { pixel(x+h,y+v,1); } } } }