LCD implementation of our project.
Dependencies: mbed mbed-rtos MLX90614
Diff: st7565LCD.cpp
- Revision:
- 0:1e597b0f8b3b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/st7565LCD.cpp Fri Mar 20 23:22:41 2015 +0000 @@ -0,0 +1,561 @@ +/* +$Id:$ + +ST7565 LCD library! + +Copyright (C) 2010 Limor Fried, Adafruit Industries + +This library is free software; you can redistribute it and/or +modify it under the terms of the GNU Lesser General Public +License as published by the Free Software Foundation; either +version 2.1 of the License, or (at your option) any later version. + +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public +License along with this library; if not, write to the Free Software +Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + +// some of this code was written by <cstone@pobox.com> originally; it is in the public domain. + + +******the library is modified for mbed********** + http://www.adafruit.com/products/250 + + *!function drawbitmap(); is left undone!* + + 2014/03/18 by imachooon + mailto: imachooon@gmail.com +************************************************ +*/ + +#include "st7565LCD.h" +#include "st7565LCDfont.h" + +#define ST7565_STARTBYTES 1 + +uint8_t is_reversed = 0; + +// a handy reference to where the pages are on the screen +const uint8_t pagemap[] = { 3, 2, 1, 0, 7, 6, 5, 4 }; + +// a 5x7 font table +extern const uint8_t font[]; + +// the memory buffer for the LCD +uint8_t st7565_buffer[1024] = { + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x3, 0x7, 0xF, 0x1F, 0x1F, 0x3F, 0x3F, 0x3F, 0x3F, 0x7, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x7F, 0x3F, 0x0, 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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + + 0x80, 0xF8, 0xFC, 0xFE, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xEF, 0xE7, 0xE7, 0xE3, + 0xF3, 0xF9, 0xFF, 0xFF, 0xFF, 0xF7, 0x7, 0x1F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, + 0x7F, 0x7F, 0x7F, 0x7F, 0x7F, 0x7F, 0x3F, 0x3F, 0x1F, 0xF, 0x7, 0x3, 0x0, 0x0, 0x0, 0xC0, + 0xE0, 0x60, 0x20, 0x20, 0x60, 0xE0, 0xE0, 0xE0, 0x0, 0x0, 0x80, 0xC0, 0xE0, 0x60, 0x20, 0x60, + 0x60, 0xE0, 0xE0, 0xE0, 0x0, 0x0, 0x80, 0xC0, 0x60, 0x60, 0x20, 0x60, 0x60, 0xE0, 0xE0, 0x0, + 0x0, 0x0, 0xE0, 0xE0, 0x0, 0x0, 0x0, 0xE0, 0xE0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0xE0, + 0x60, 0x60, 0x60, 0x60, 0xE0, 0x80, 0x0, 0x0, 0x0, 0xE0, 0xE0, 0x0, 0x0, 0x0, 0xE0, 0xE0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + + 0x0, 0x0, 0x0, 0x3, 0x7, 0x1F, 0x9F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFD, 0xF1, 0xE3, + 0xE3, 0xCF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xFC, 0x7F, 0x3F, 0x3F, 0x3F, 0x3F, 0x7F, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFC, 0xF0, 0xE0, 0x80, 0x0, 0x0, 0x0, 0xC, + 0x1C, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7F, 0x7F, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x7, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1C, 0xC, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + + 0x0, 0x7, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFE, 0xFE, 0xFE, 0xFC, 0xF8, + 0xF8, 0xF0, 0xFE, 0xFF, 0xFF, 0xFF, 0x7F, 0x3F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x1F, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xFF, + 0xFF, 0x0, 0x0, 0x0, 0xFF, 0xFF, 0xE0, 0xC0, 0xC0, 0xC0, 0xFF, 0x7F, 0x0, 0x0, 0x1E, 0x7F, + 0xE1, 0xC0, 0xC0, 0xC0, 0xC0, 0x61, 0xFF, 0xFF, 0x0, 0x0, 0xFE, 0xFF, 0x1, 0x0, 0x0, 0x0, + 0xFF, 0xFF, 0x0, 0x0, 0x21, 0xF9, 0xF8, 0xDC, 0xCC, 0xCF, 0x7, 0x0, 0xC0, 0xFF, 0xFF, 0xC0, + 0x80, 0x0, 0xFF, 0xFF, 0xC0, 0xC0, 0x80, 0x0, 0x0, 0xFF, 0xFF, 0x0, 0x0, 0x1F, 0x7F, 0xF9, + 0xC8, 0xC8, 0xC8, 0xC8, 0x79, 0x39, 0x0, 0x0, 0x71, 0xF9, 0xD8, 0xCC, 0xCE, 0x47, 0x3, 0x0, + + 0x0, 0x0, 0x0, 0x0, 0x80, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xF8, 0xFC, 0xFC, 0xFC, 0xFC, 0xF8, 0xF0, 0xC0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xC0, + 0xC0, 0x0, 0x0, 0x0, 0xC0, 0xC0, 0x0, 0x0, 0x0, 0x0, 0xC0, 0xC0, 0x0, 0x0, 0x0, 0x80, + 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0x80, 0xC0, 0xC0, 0x0, 0x0, 0x0, 0x80, 0xC0, 0xC0, 0xC0, 0xC0, + 0xC0, 0x80, 0x0, 0x0, 0x80, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0x0, 0x0, 0x0, 0xC0, 0xC0, 0x0, + 0x0, 0x0, 0xC0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0xC0, 0xC0, 0x0, 0x0, 0x0, 0x80, 0xC0, + 0xC0, 0xC0, 0xC0, 0xC0, 0x80, 0x80, 0x0, 0x0, 0x80, 0xC0, 0xC0, 0xC0, 0xC0, 0x80, 0x0, 0x0, + + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, +}; + + + + +// reduces how much is refreshed, which speeds it up! +// originally derived from Steve Evans/JCW's mod but cleaned up and +// optimized +#define enablePartialUpdate + +#ifdef enablePartialUpdate +static uint8_t xUpdateMin, xUpdateMax, yUpdateMin, yUpdateMax; +#endif + + + +static void updateBoundingBox(uint8_t xmin, uint8_t ymin, uint8_t xmax, uint8_t ymax) +{ +#ifdef enablePartialUpdate + if (xmin < xUpdateMin) xUpdateMin = xmin; + if (xmax > xUpdateMax) xUpdateMax = xmax; + if (ymin < yUpdateMin) yUpdateMin = ymin; + if (ymax > yUpdateMax) yUpdateMax = ymax; +#endif +} + +/* +void ST7565::drawbitmap(uint8_t x, uint8_t y, + const uint8_t *bitmap, uint8_t w, uint8_t h, + uint8_t color) { + for (uint8_t i=0; i<h; i++) { + for (uint8_t j=0; j<w; j++ ) { + if (pgm_read_byte(bitmap + j + (j/8)*w) & _BV(j%8)) { + my_setpixel(x+j, y+i, color); + } + } + } + + updateBoundingBox(x, y, x+w, y+h); +} +*/ + +void ST7565::drawstring(uint8_t x, uint8_t line, char *c) +{ + while (*c != '\0') { + drawchar(x, line, *c); + *c++; + x += 6; // 6 pixels wide + if (x + 6 >= LCDWIDTH) { + x = 0; // ran out of this line + line++; + } + if (line >= (LCDHEIGHT/8)) + return; // ran out of space :( + } +} + + +void ST7565::drawchar(uint8_t x, uint8_t line, char c) +{ + for (uint8_t i =0; i<5; i++ ) { + *(st7565_buffer + x + line*128) = *(font + (c*5) + i); + x++; + } + updateBoundingBox(x, line*8, x+5, line*8+8); //only updates relevant area of LCD +} + + +// bresenham's algorithm - thx wikpedia +void ST7565::drawline(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, + uint8_t color) +{ + uint8_t steep = abs(y1 - y0) > abs(x1 - x0); + if (steep) { + swap(x0, y0); + swap(x1, y1); + } + + if (x0 > x1) { + swap(x0, x1); + swap(y0, y1); + } + + // much faster to put the test here, since we've already sorted the points + updateBoundingBox(x0, y0, x1, y1); + + uint8_t dx, dy; + dx = x1 - x0; + dy = abs(y1 - y0); + + int8_t err = dx / 2; + int8_t ystep; + + if (y0 < y1) { + ystep = 1; + } else { + ystep = -1; + } + + for (; x0<=x1; x0++) { + if (steep) { + my_setpixel(y0, x0, color); + } else { + my_setpixel(x0, y0, color); + } + err -= dy; + if (err < 0) { + y0 += ystep; + err += dx; + } + } +} + +// filled rectangle +void ST7565::fillrect(uint8_t x, uint8_t y, uint8_t w, uint8_t h, + uint8_t color) +{ + + // stupidest version - just pixels - but fast with internal buffer! + for (uint8_t i=x; i<x+w; i++) { + for (uint8_t j=y; j<y+h; j++) { + my_setpixel(i, j, color); + } + } + + updateBoundingBox(x, y, x+w, y+h); +} + +// draw a rectangle +void ST7565::drawrect(uint8_t x, uint8_t y, uint8_t w, uint8_t h, + uint8_t color) +{ + // stupidest version - just pixels - but fast with internal buffer! + for (uint8_t i=x; i<x+w; i++) { + my_setpixel(i, y, color); + my_setpixel(i, y+h-1, color); + } + for (uint8_t i=y; i<y+h; i++) { + my_setpixel(x, i, color); + my_setpixel(x+w-1, i, color); + } + + updateBoundingBox(x, y, x+w, y+h); +} + +// draw a circle outline +void ST7565::drawcircle(uint8_t x0, uint8_t y0, uint8_t r, + uint8_t color) +{ + updateBoundingBox(x0-r, y0-r, x0+r, y0+r); + + int8_t f = 1 - r; + int8_t ddF_x = 1; + int8_t ddF_y = -2 * r; + int8_t x = 0; + int8_t y = r; + + my_setpixel(x0, y0+r, color); + my_setpixel(x0, y0-r, color); + my_setpixel(x0+r, y0, color); + my_setpixel(x0-r, y0, color); + + while (x<y) { + if (f >= 0) { + y--; + ddF_y += 2; + f += ddF_y; + } + x++; + ddF_x += 2; + f += ddF_x; + + my_setpixel(x0 + x, y0 + y, color); + my_setpixel(x0 - x, y0 + y, color); + my_setpixel(x0 + x, y0 - y, color); + my_setpixel(x0 - x, y0 - y, color); + + my_setpixel(x0 + y, y0 + x, color); + my_setpixel(x0 - y, y0 + x, color); + my_setpixel(x0 + y, y0 - x, color); + my_setpixel(x0 - y, y0 - x, color); + + } +} + +void ST7565::fillcircle(uint8_t x0, uint8_t y0, uint8_t r, + uint8_t color) +{ + updateBoundingBox(x0-r, y0-r, x0+r, y0+r); + + int8_t f = 1 - r; + int8_t ddF_x = 1; + int8_t ddF_y = -2 * r; + int8_t x = 0; + int8_t y = r; + + for (uint8_t i=y0-r; i<=y0+r; i++) { + my_setpixel(x0, i, color); + } + + while (x<y) { + if (f >= 0) { + y--; + ddF_y += 2; + f += ddF_y; + } + x++; + ddF_x += 2; + f += ddF_x; + + for (uint8_t i=y0-y; i<=y0+y; i++) { + my_setpixel(x0+x, i, color); + my_setpixel(x0-x, i, color); + } + for (uint8_t i=y0-x; i<=y0+x; i++) { + my_setpixel(x0+y, i, color); + my_setpixel(x0-y, i, color); + } + } +} + +void ST7565::my_setpixel(uint8_t x, uint8_t y, uint8_t color) +{ + if ((x >= LCDWIDTH) || (y >= LCDHEIGHT)) + return; + + // x is which column + if (color) + st7565_buffer[x+ (y/8)*128] |= _BV(7-(y%8)); + else + st7565_buffer[x+ (y/8)*128] &= _nBV(7-(y%8)); +} + +// the most basic function, set a single pixel +void ST7565::setpixel(uint8_t x, uint8_t y, uint8_t color) +{ + if ((x >= LCDWIDTH) || (y >= LCDHEIGHT)) + return; + // x is which column + if (color) + st7565_buffer[x+ (y/8)*128] |= _BV(7-(y%8)); + else + st7565_buffer[x+ (y/8)*128] &= _nBV(7-(y%8)); + + updateBoundingBox(x,y,x,y); +} + + +// the most basic function, get a single pixel +uint8_t ST7565::getpixel(uint8_t x, uint8_t y) +{ + if ((x >= LCDWIDTH) || (y >= LCDHEIGHT)) + return 0; + + return (st7565_buffer[x+ (y/8)*128] >> (7-(y%8))) & 0x1; +} + + +ST7565::ST7565(PinName mosi, PinName sclk, PinName cs, PinName rst, PinName a0) +// set pin directions + : _spi(mosi, NC, sclk), _cs(cs), _rst(rst), _a0(a0) + +{ + _spi.format(8, 0); + _spi.frequency(1000000); +} + + + +void ST7565::st7565_init(void) +{ + wait_ms(100); + _rst = 0; + wait_ms(100); + _rst = 1; + + + // LCD bias select + st7565_command(CMD_SET_BIAS_7); + // ADC select + st7565_command(CMD_SET_ADC_NORMAL); + // SHL select + st7565_command(CMD_SET_COM_NORMAL); + + // turn on voltage converter (VC=1, VR=0, VF=0) + st7565_command(CMD_SET_POWER_CONTROL | 0x4); + // wait for 50% rising + wait_ms(50); + + // turn on voltage regulator (VC=1, VR=1, VF=0) + st7565_command(CMD_SET_POWER_CONTROL | 0x6); + // wait >=50ms + wait_ms(20); + + // turn on voltage follower (VC=1, VR=1, VF=1) + st7565_command(CMD_SET_POWER_CONTROL | 0x7); + // wait + wait_ms(10); + + // set lcd operating voltage (regulator resistor, ref voltage resistor) + st7565_command(CMD_SET_RESISTOR_RATIO | 0x4); + wait_ms(10); + + +// st7565_set_brightness(INITIAL_CONTRAST); + // set up a bounding box for screen updates + updateBoundingBox(0, 0, LCDWIDTH-1, LCDHEIGHT-1); + + + st7565_command(CMD_DISPLAY_ON); + st7565_command(CMD_SET_ALLPTS_NORMAL); + + + // reference voltage resistor + st7565_command(CMD_SET_VOLUME_FIRST); + wait_ms(10); + st7565_command(CMD_SET_VOLUME_SECOND); + wait_ms(10); + + + + // Initial display line ( = 0) + st7565_command(CMD_SET_DISP_START_LINE); + // Initial page address ( = 0) + st7565_command(CMD_SET_PAGE); + st7565_command(CMD_SET_COLUMN_UPPER); + st7565_command(CMD_SET_COLUMN_LOWER); + +} + +inline void ST7565::spiwrite(uint8_t c) +{ + _spi.write(c); +} + +void ST7565::st7565_command(uint8_t c) +{ + _cs = 0; + _a0 = 0; + _spi.write(c); + _cs = 1; +} + +void ST7565::st7565_data(uint8_t c) +{ + _cs = 0; + _a0 = 1; + _spi.write(c); + _cs = 1; +} + +void ST7565::st7565_set_brightness(uint8_t val) +{ + st7565_command(CMD_SET_VOLUME_FIRST); + st7565_command(CMD_SET_VOLUME_SECOND | (val & 0x3f)); +} + +void ST7565::begin(uint8_t contrast){ + st7565_init(); + st7565_command(CMD_DISPLAY_ON); + st7565_command(CMD_SET_ALLPTS_NORMAL); + st7565_set_brightness(contrast); +} + + +void ST7565::display(void) +{ + uint8_t col, maxcol, p; + + for(p = 0; p < 8; p++) { +#ifdef enablePartialUpdate + // check if this page is part of update + if ( yUpdateMin >= ((p+1)*8) ) { + continue; // nope, skip it! + } + if (yUpdateMax < p*8) { + break; + } +#endif + st7565_command(CMD_SET_PAGE | pagemap[p]); + +#ifdef enablePartialUpdate + col = xUpdateMin; + maxcol = xUpdateMax; +#else + // start at the beginning of the row + col = 0; + maxcol = LCDWIDTH-1; +#endif + + st7565_command(CMD_SET_COLUMN_LOWER | ((col+ST7565_STARTBYTES) & 0xf)); + st7565_command(CMD_SET_COLUMN_UPPER | (((col+ST7565_STARTBYTES) >> 4) & 0x0F)); + st7565_command(CMD_RMW); + + for(; col <= maxcol; col++) { + st7565_data(st7565_buffer[(128*p)+col]); + } + } + +#ifdef enablePartialUpdate + xUpdateMin = LCDWIDTH - 1; + xUpdateMax = 0; + yUpdateMin = LCDHEIGHT-1; + yUpdateMax = 0; +#endif +} + +// clear everything +void ST7565::clear(void) +{ + memset(st7565_buffer, 0, 1024); + updateBoundingBox(0, 0, LCDWIDTH-1, LCDHEIGHT-1); +} + + +// this doesnt touch the buffer, just clears the display RAM - might be handy +void ST7565::clear_display(void) +{ + uint8_t p, c; + + for(p = 0; p < 8; p++) { + + st7565_command(CMD_SET_PAGE | p); + for(c = 0; c < 129; c++) { + st7565_command(CMD_SET_COLUMN_LOWER | (c & 0xf)); + st7565_command(CMD_SET_COLUMN_UPPER | ((c >> 4) & 0xf)); + st7565_data(0x0); + } + } +} + +//additional function to set a bit +uint8_t ST7565::_BV(uint8_t bit) +{ + return 1 << bit; +} + +uint8_t ST7565::_nBV(uint8_t bit) +{ + return 0 << bit; +} \ No newline at end of file