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
ST7565_SPI_LCD.cpp
- Committer:
- kenjiArai
- Date:
- 2020-08-05
- Revision:
- 23:233a0d635d9d
- Parent:
- 22:7d03976a0cb3
File content as of revision 23:233a0d635d9d:
/* EXTEND for SPI interface LCD which is using ST7565 controller Modified by Kenji Arai / JH1PJL http://www7b.biglobe.ne.jp/~kenjia/ https://os.mbed.com/users/kenjiArai/ Started: September 20th, 2014 Revised: December 13th, 2014 Revised: August 5th, 2020 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 // Com #ifdef DEBUG #define PRINTF(...) printf(__VA_ARGS__) #else #define PRINTF(...) {;} #endif ST7565::ST7565 ( PinName mosi, PinName sck, PinName reset, PinName a0, PinName ncs, LCDType type, const char* name ): GraphicsDisplay(name), _spi_p(new SPI(mosi,NC,sck)), _spi(*_spi_p), _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(0x23); // Vo voltage reg. 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 ThisThread::sleep_for(5ms); // 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); } } } }