Favre Lucas
Librarie pour ecran 128x32 de MyLab
Diff: C12832.cpp
- Revision:
- 11:c00a727f140f
- Child:
- 12:00bbd42614c7
diff -r 8f86576007d6 -r c00a727f140f C12832.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/C12832.cpp Tue Mar 29 18:26:15 2016 +0000
@@ -0,0 +1,578 @@
+/* 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);
+ }
+ }
+ }
+
+}
+
+
+