Extended library from C12832 Lib. by Peter Drescher, Chris Styles & Mihail Stoyanov. LCD in the market such as AQM1248A (Akizuki), AD-12864-SPI (antendo), NHD-C12832 (Newhaven), ST7565 (adafruit) and so on
Dependents: CW_Decoder_using_FFT_on_F446 LPC1114_SPI_LCD_ST7565family_test
Fork of C12832 by
Original library is below link.
http://mbed.org/teams/components/code/C12832/
https://mbed.org/users/dreschpe/code/C12832_lcd/
I extended applicable LCD's not only 128 x 32 but also 128 x 48 and 128 x 64 type of SPI LCD using ST7565 controller.
I have checked AD-12864-SPI and AQM1248 LCD.
Import programLPC1114_SPI_LCD_ST7565family_test
Controller chip is ST7565
Diff: ST7565_SPI_LCD.cpp
- Revision:
- 19:871eed87d8ea
- Child:
- 20:5b329c2a1ffe
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ST7565_SPI_LCD.cpp Sun Sep 21 01:04:42 2014 +0000 @@ -0,0 +1,593 @@ +/* + EXTEND for SPI interface LCD which is using ST7565 controller + Modified by Kenji Arai / JH1PJL + http://www.page.sannet.ne.jp/kenjia/index.html + http://mbed.org/users/kenjiArai/ + Started: September 20th, 2014 + Revised: September 21st, 2014 + + original file: C12832.cpp + original Library name: C12832 +*/ + +//---------- ORIGINAL Header ---------------------------------------------------- +/* mbed library for the mbed Lab Board 128*32 pixel LCD + * use C12832 controller + * Copyright (c) 2012 Peter Drescher - DC2PD + * Released under the MIT License: http://mbed.org/license/mit + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +// 13.10.12 initial design +// 25.10.12 add autorefresh of screen +// 25.10.12 add standart font +// 20.12.12 add bitmap graphics + +#include "ST7565_SPI_LCD.h" +#include "mbed.h" +#include "stdio.h" +#include "Small_7.h" + +#define BPP 1 // Bits per pixel + +#define DEBUG 0 +// Com +#ifdef DEBUG +#define BAUD(x) pcx.baud(x) +#define GETC(x) pcx.getc(x) +#define PUTC(x) pcx.putc(x) +#define PRINTF(...) pcx.printf(__VA_ARGS__) +#define READABLE(x) pcx.readable(x) +#else +#define BAUD(x) {;} +#define GETC(x) {;} +#define PUTC(x) {;} +#define PRINTF(...) {;} +#define READABLE(x) {;} +#endif +#ifdef DEBUG +// com +Serial pcx(dp16,dp15); // Communication with Host +#endif + +ST7565::ST7565(PinName mosi, PinName sck, + PinName reset, PinName a0, PinName ncs, LCDType type, const char* name) + : GraphicsDisplay(name),_spi(mosi,NC,sck),_reset(reset),_A0(a0),_CS(ncs) +{ + initialize(type); +} + +ST7565::ST7565(SPI& p_spi, PinName reset, PinName a0, PinName ncs, LCDType type, const char* name) + : GraphicsDisplay(name),_spi(p_spi),_reset(reset),_A0(a0),_CS(ncs) +{ + initialize(type); +} + +void ST7565::initialize(LCDType type){ + switch (type){ + case LCD128x32: + lcd_width = 128; + lcd_height = 32; + break; + case LCD128x48: + lcd_width = 128; + lcd_height = 48; + break; + case LCD128x64: + lcd_width = 128; + lcd_height = 64; + break; + default: + lcd_width = 128; + lcd_height = 64; + } + draw_mode = NORMAL; + char_x = 0; + lcd_reset(); +} + +int ST7565::width(){ +// PRINTF("W:%d",lcd_width); + return(lcd_width); +} + +int ST7565::height(){ +// PRINTF("H:%d",lcd_height); + return(lcd_height); +} + +void ST7565::invert(unsigned int o){ + if(o == 0){ + wr_cmd(0xA6); + } else { + wr_cmd(0xA7); + } +} + +void ST7565::set_contrast(unsigned int o){ + contrast = o; + wr_cmd(0x81); // set volume + wr_cmd(o & 0x3F); +} + +unsigned int ST7565::get_contrast(void){ + return(contrast); +} + +// write command to lcd controller +void ST7565::wr_cmd(unsigned char cmd){ + _A0 = 0; + _CS = 0; + _spi.write(cmd); + _CS = 1; +} + +// write data to lcd controller +void ST7565::wr_dat(unsigned char dat){ + _A0 = 1; + _CS = 0; + _spi.write(dat); + _CS = 1; +} + +// reset and init the lcd controller +void ST7565::lcd_reset(){ + _spi.format(8,0); + _spi.frequency(10000000); // 10 MHz SPI clock + _A0 = 0; + _CS = 1; + _reset = 0; // display reset + wait_us(50); + _reset = 1; // end reset + wait_ms(5); + // initialize sequence + wr_cmd(0xaf); // display on + wr_cmd(0x2f); // power control set + wr_cmd(0x81); // set electronic volume mode + wr_cmd(0x00); // electronic volume data 00-3f + wr_cmd(0x27); // Volatge Regulator Internal Resister Ratio Set + wr_cmd(0xa2); // LCD Bias Set ... 1/9 bias + wr_cmd(0xc8); // Common Output Mode Select ... Reverse + wr_cmd(0xa0); // ADC Select ... Norma + wr_cmd(0xa4); // Display All Points ON/OFF ... normal + wr_cmd(0xa6); // Display Normal/Reverse ... normal + wr_cmd(0xac); // Static Indicator ... off + wr_cmd(0x00); // off + wr_cmd(0x40); // Display Strat Line Set ... 0 + wr_cmd(0xe0); // Write Mode Set + // clear and update LCD + memset(buffer,0x00,1024); // clear display buffer + copy_to_lcd(); + auto_up = 1; // switch on auto update + // dont do this by default. Make the user call + //claim(stdout); // redirect printf to lcd + locate(0,0); + set_font((unsigned char*)Small_7); // standart font +} + +// set one pixel in buffer +void ST7565::pixel(int x, int y, int color){ + // first check parameter + if(x > lcd_width || y > lcd_height || 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 ST7565::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; + for(i=384; i<512; i++) { + wr_dat(buffer[i]); + } + if ((lcd_height == 48) || (lcd_height == 64)){ + // page 4 + wr_cmd(0x00); // set column low nibble 0 + wr_cmd(0x10); // set column hi nibble 0 + wr_cmd(0xB4); // set page address 4 + _A0 = 1; + for(i=512; i<640; i++) { + wr_dat(buffer[i]); + } + // page 5 + wr_cmd(0x00); // set column low nibble 0 + wr_cmd(0x10); // set column hi nibble 0 + wr_cmd(0xB5); // set page address 5 + _A0 = 1; + for(i=640; i<768; i++) { + wr_dat(buffer[i]); + } + } + if (lcd_height == 64){ + // page 6 + wr_cmd(0x00); // set column low nibble 0 + wr_cmd(0x10); // set column hi nibble 0 + wr_cmd(0xB6); // set page address 6 + _A0 = 1; + for(i=768; i<896; i++) { + wr_dat(buffer[i]); + } + // page 7 + wr_cmd(0x00); // set column low nibble 0 + wr_cmd(0x10); // set column hi nibble 0 + wr_cmd(0xB7); // set page address 7 + _A0 = 1; + for(i=896; i<1024; i++) { + wr_dat(buffer[i]); + } + } + _CS = 0; +} + +void ST7565::cls(void){ + memset(buffer,0x00,1024); // clear display buffer + copy_to_lcd(); +} + +void ST7565::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 ST7565::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 ST7565::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 ST7565::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 ST7565::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 ST7565::setmode(int mode){ + draw_mode = mode; +} + +void ST7565::locate(int x, int y){ + char_x = x; + char_y = y; +} + +int ST7565::columns(){ + return width() / font[1]; +} + +int ST7565::rows(){ + return height() / font[2]; +} + +void ST7565::line_clear(int y){ +unsigned int vert,j,i,x; + + // read font parameter from start of array + vert = font[2]; // get vert size of font + x = 0; + for (j=0; j<vert; j++) { // vert line + for (i=0; i<width(); i++) { // horz line + pixel(x+i,y+j,0); + } + } +} + +int ST7565::_putc(int value){ + if (value == 0x0d) { // new line + char_x = 0; + char_y = char_y + font[2]; + if (char_y >= height() - font[2]){ + char_y = 0; + } + line_clear(char_y); + } else { + character(char_x, char_y, value); + if(auto_up){ copy_to_lcd();} + } + return value; +} + +void ST7565::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; + if(char_x >= (width() - hor)) { + char_x = 0; + char_y = char_y + vert; + if (char_y >= height() - font[2]){ + char_y = 0; + } + line_clear(char_y); + } + //PRINTF("C:%d %d %d %d %d %d\r\n",offset,hor,vert,bpl,char_x,char_y); +} + +void ST7565::set_font(unsigned char* f){ + font = f; +} + +void ST7565::set_auto_up(unsigned int up){ + if(up){ + auto_up = 1; + } else { + auto_up = 0; + } +} + +unsigned int ST7565::get_auto_up(void){ + return (auto_up); +} + +void ST7565::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); + } + } + } +}