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topicchi
2023-03-17 11:59:21 +00:00
parent 252ecca9cf
commit e2f276193e
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273
trunk/Arduino/libraries/MicroLCD/SSD1306.cpp Normal file
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#include <avr/pgmspace.h>
//#include <util/delay.h>
#include <stdlib.h>
#include <Wire.h>
#include "SSD1306.h"
SSD1306::SSD1306(int8_t SCLK, int8_t DC, int8_t RST, int8_t CS) {
cs = CS;
rst = RST;
dc = DC;
sclk = SCLK;
}
// initializer for I2C - we only indicate the reset pin!
SSD1306::SSD1306(int8_t reset) {
sclk = dc = cs = -1;
rst = reset;
}
void SSD1306::begin(uint8_t vccstate, uint8_t i2caddr) {
_i2caddr = i2caddr;
// set pin directions
// I2C Init
Wire.begin(); // Is this the right place for this?
// Setup reset pin direction (used by both SPI and I2C)
pinMode(rst, OUTPUT);
digitalWrite(rst, HIGH);
// VDD (3.3V) goes high at start, lets just chill for a ms
delay(1);
// bring reset low
digitalWrite(rst, LOW);
// wait 10ms
delay(10);
// bring out of reset
digitalWrite(rst, HIGH);
// turn on VCC (9V?)
#if defined SSD1306_128_32
// Init sequence for 128x32 OLED module
ssd1306_command(SSD1306_DISPLAYOFF); // 0xAE
ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
ssd1306_command(0x80); // the suggested ratio 0x80
ssd1306_command(SSD1306_SETMULTIPLEX); // 0xA8
ssd1306_command(0x1F);
ssd1306_command(SSD1306_SETDISPLAYOFFSET); // 0xD3
ssd1306_command(0x0); // no offset
ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
ssd1306_command(SSD1306_CHARGEPUMP); // 0x8D
if (vccstate == SSD1306_EXTERNALVCC)
{ ssd1306_command(0x10); }
else
{ ssd1306_command(0x14); }
ssd1306_command(SSD1306_MEMORYMODE); // 0x20
ssd1306_command(0x00); // 0x0 act like ks0108
ssd1306_command(SSD1306_SEGREMAP | 0x1);
ssd1306_command(SSD1306_COMSCANDEC);
ssd1306_command(SSD1306_SETCOMPINS); // 0xDA
ssd1306_command(0x02);
ssd1306_command(SSD1306_SETCONTRAST); // 0x81
ssd1306_command(0x8F);
ssd1306_command(SSD1306_SETPRECHARGE); // 0xd9
if (vccstate == SSD1306_EXTERNALVCC)
{ ssd1306_command(0x22); }
else
{ ssd1306_command(0xF1); }
ssd1306_command(SSD1306_SETVCOMDETECT); // 0xDB
ssd1306_command(0x40);
ssd1306_command(SSD1306_DISPLAYALLON_RESUME); // 0xA4
ssd1306_command(SSD1306_NORMALDISPLAY); // 0xA6
#endif
#if defined SSD1306_128_64
// Init sequence for 128x64 OLED module
ssd1306_command(SSD1306_DISPLAYOFF); // 0xAE
ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
ssd1306_command(0x80); // the suggested ratio 0x80
ssd1306_command(SSD1306_SETMULTIPLEX); // 0xA8
ssd1306_command(0x3F);
ssd1306_command(SSD1306_SETDISPLAYOFFSET); // 0xD3
ssd1306_command(0x0); // no offset
ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
ssd1306_command(SSD1306_CHARGEPUMP); // 0x8D
if (vccstate == SSD1306_EXTERNALVCC)
{ ssd1306_command(0x10); }
else
{ ssd1306_command(0x14); }
ssd1306_command(SSD1306_MEMORYMODE); // 0x20
ssd1306_command(0x00); // 0x0 act like ks0108
ssd1306_command(SSD1306_SEGREMAP | 0x1);
ssd1306_command(SSD1306_COMSCANDEC);
ssd1306_command(SSD1306_SETCOMPINS); // 0xDA
ssd1306_command(0x12);
ssd1306_command(SSD1306_SETCONTRAST); // 0x81
if (vccstate == SSD1306_EXTERNALVCC)
{ ssd1306_command(0x9F); }
else
{ ssd1306_command(0xCF); }
ssd1306_command(SSD1306_SETPRECHARGE); // 0xd9
if (vccstate == SSD1306_EXTERNALVCC)
{ ssd1306_command(0x22); }
else
{ ssd1306_command(0xF1); }
ssd1306_command(SSD1306_SETVCOMDETECT); // 0xDB
ssd1306_command(0x40);
ssd1306_command(SSD1306_DISPLAYALLON_RESUME); // 0xA4
ssd1306_command(SSD1306_NORMALDISPLAY); // 0xA6
#endif
ssd1306_command(SSD1306_DISPLAYON);//--turn on oled panel
// clear screen
delay(5);
ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0
ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0
ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
for (byte i = 0; i < SSD1306_LCDHEIGHT / 8; i++) {
// send a bunch of data in one xmission
ssd1306_command(0xB0 + i);//set page address
ssd1306_command(0);//set lower column address
ssd1306_command(0x10);//set higher column address
for(byte j = 0; j < 8; j++){
Wire.beginTransmission(_i2caddr);
Wire.write(0x40);
for (byte k = 0; k < SSD1306_LCDWIDTH / 8; k++) {
Wire.write(0);
}
Wire.endTransmission();
}
}
}
void SSD1306::invertDisplay(uint8_t i) {
if (i) {
ssd1306_command(SSD1306_INVERTDISPLAY);
} else {
ssd1306_command(SSD1306_NORMALDISPLAY);
}
}
void SSD1306::ssd1306_command(uint8_t c) {
// I2C
uint8_t control = 0x00; // Co = 0, D/C = 0
Wire.beginTransmission(_i2caddr);
Wire.write(control);
Wire.write(c);
Wire.endTransmission();
}
// startscrollright
// Activate a right handed scroll for rows start through stop
// Hint, the display is 16 rows tall. To scroll the whole display, run:
// display.scrollright(0x00, 0x0F)
void SSD1306::startscrollright(uint8_t start, uint8_t stop){
ssd1306_command(SSD1306_RIGHT_HORIZONTAL_SCROLL);
ssd1306_command(0X00);
ssd1306_command(start);
ssd1306_command(0X00);
ssd1306_command(stop);
ssd1306_command(0X01);
ssd1306_command(0XFF);
ssd1306_command(SSD1306_ACTIVATE_SCROLL);
}
// startscrollleft
// Activate a right handed scroll for rows start through stop
// Hint, the display is 16 rows tall. To scroll the whole display, run:
// display.scrollright(0x00, 0x0F)
void SSD1306::startscrollleft(uint8_t start, uint8_t stop){
ssd1306_command(SSD1306_LEFT_HORIZONTAL_SCROLL);
ssd1306_command(0X00);
ssd1306_command(start);
ssd1306_command(0X00);
ssd1306_command(stop);
ssd1306_command(0X01);
ssd1306_command(0XFF);
ssd1306_command(SSD1306_ACTIVATE_SCROLL);
}
// startscrolldiagright
// Activate a diagonal scroll for rows start through stop
// Hint, the display is 16 rows tall. To scroll the whole display, run:
// display.scrollright(0x00, 0x0F)
void SSD1306::startscrolldiagright(uint8_t start, uint8_t stop){
ssd1306_command(SSD1306_SET_VERTICAL_SCROLL_AREA);
ssd1306_command(0X00);
ssd1306_command(SSD1306_LCDHEIGHT);
ssd1306_command(SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL);
ssd1306_command(0X00);
ssd1306_command(start);
ssd1306_command(0X00);
ssd1306_command(stop);
ssd1306_command(0X01);
ssd1306_command(SSD1306_ACTIVATE_SCROLL);
}
// startscrolldiagleft
// Activate a diagonal scroll for rows start through stop
// Hint, the display is 16 rows tall. To scroll the whole display, run:
// display.scrollright(0x00, 0x0F)
void SSD1306::startscrolldiagleft(uint8_t start, uint8_t stop){
ssd1306_command(SSD1306_SET_VERTICAL_SCROLL_AREA);
ssd1306_command(0X00);
ssd1306_command(SSD1306_LCDHEIGHT);
ssd1306_command(SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL);
ssd1306_command(0X00);
ssd1306_command(start);
ssd1306_command(0X00);
ssd1306_command(stop);
ssd1306_command(0X01);
ssd1306_command(SSD1306_ACTIVATE_SCROLL);
}
void SSD1306::stopscroll(void){
ssd1306_command(SSD1306_DEACTIVATE_SCROLL);
}
void SSD1306::ssd1306_data(uint8_t c) {
// I2C
uint8_t control = 0x40; // Co = 0, D/C = 1
Wire.beginTransmission(_i2caddr);
Wire.write(control);
Wire.write(c);
Wire.endTransmission();
}
void SSD1306::fill(unsigned char dat)
{
unsigned char i,j;
ssd1306_command(0x00);//set lower column address
ssd1306_command(0x10);//set higher column address
ssd1306_command(0xB0);//set page address
uint8_t twbrbackup = TWBR;
TWBR = 18; // upgrade to 400KHz!
for (byte i=0; i<(SSD1306_LCDHEIGHT/8); i++)
{
// send a bunch of data in one xmission
ssd1306_command(0xB0 + i);//set page address
ssd1306_command(0);//set lower column address
ssd1306_command(0x10);//set higher column address
for(byte j = 0; j < 8; j++){
Wire.beginTransmission(_i2caddr);
Wire.write(0x40);
for (byte k = 0; k < 16; k++) {
Wire.write(dat);
}
Wire.endTransmission();
}
}
TWBR = twbrbackup;
}
void SSD1306::draw8x8(byte* buffer, uint8_t x, uint8_t y)
{
// send a bunch of data in one xmission
ssd1306_command(0xB0 + y);//set page address
ssd1306_command(x & 0xf);//set lower column address
ssd1306_command(0x10 | (x >> 4));//set higher column address
Wire.beginTransmission(_i2caddr);
Wire.write(0x40);
Wire.write(buffer, 8);
Wire.endTransmission();
}