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//Demo LCD12864 spi
#include "LCD12864RSPI.h"
extern "C"
{
#include
#include
#include //not needed yet
#include //needed for strlen()
#include
}
LCD12864RSPI::LCD12864RSPI()
{
this->DEFAULTTIME = 80; // 80 ms default time
this->delaytime = DEFAULTTIME;
}
//*********************延時函數************************//
void LCD12864RSPI::delayns(void)
{
delayMicroseconds(delaytime);
}
void LCD12864RSPI::WriteByte(int dat)
{
digitalWrite(latchPin, HIGH);
delayns();
shiftOut(dataPin, clockPin, MSBFIRST, dat);
digitalWrite(latchPin, LOW);
}
void LCD12864RSPI::WriteCommand(int CMD)
{
int H_data,L_data;
H_data = CMD;
H_data &= 0xf0; //屏蔽低4位的數據
L_data = CMD; //xxxx0000格式
L_data &= 0x0f; //屏蔽高4位的數據
L_data <<= 4; //xxxx0000格式
WriteByte(0xf8); //RS=0，寫入的是指令；
WriteByte(H_data);
WriteByte(L_data);
}
void LCD12864RSPI::WriteData(int CMD)
{
int H_data,L_data;
H_data = CMD;
H_data &= 0xf0; //屏蔽低4位的數據
L_data = CMD; //xxxx0000格式
L_data &= 0x0f; //屏蔽高4位的數據
L_data <<= 4; //xxxx0000格式
WriteByte(0xfa); //RS=1，寫入的是數據
WriteByte(H_data);
WriteByte(L_data);
}
void LCD12864RSPI::Initialise()
{
pinMode(latchPin, OUTPUT);
pinMode(clockPin, OUTPUT);
pinMode(dataPin, OUTPUT);
digitalWrite(latchPin, LOW);
delayns();
WriteCommand(0x30); //功能設定控制字
WriteCommand(0x0c); //顯示開關控制字
WriteCommand(0x01); //清除屏幕控制字
WriteCommand(0x06); //進入設定點控制字
}
void LCD12864RSPI::CLEAR(void)
{
WriteCommand(0x30);//
WriteCommand(0x01);//清除顯示
}
void LCD12864RSPI::DisplayString(int X,int Y,uchar *ptr,int dat)
{
int i;
switch(X)
{
case 0: Y|=0x80;break;
case 1: Y|=0x90;break;
case 2: Y|=0x88;break;
case 3: Y|=0x98;break;
default: break;
}
WriteCommand(Y); // 定位顯示起始地址
for(i=0;i<dat;i++)
{
WriteData(ptr[i]);//顯示漢字時注意碼值，連續兩個碼表示一個漢字
}
}
void LCD12864RSPI::DisplaySig(int M,int N,int sig)
{
switch(M)
{
case 0: N|=0x80;break;
case 1: N|=0x90;break;
case 2: N|=0x88;break;
case 3: N|=0x98;break;
default: break;
}
WriteCommand(N); // 定位顯示起始地址
WriteData(sig); //輸出單個字符
}
void LCD12864RSPI::DrawPoint(int X,int Y,uchar *p)
{
int x,y,i;
int tmp;
if(Y<32)
{
x= 0x80;
y=Y+0x80;
}
else
{
x= 0x88;
y=Y-32+0x80;
}
WriteCommand(0x34); //寫入擴充指令命令
WriteCommand(y); //寫入y軸坐標
WriteCommand(x); //寫入x軸坐標
WriteCommand(0x30); //寫入基本指令命令
tmp=Y*16;
for(i=0;i<round(x 8.0+0.5);i++)
{
WriteData(p[tmp++]);
}
WriteCommand(0x34); //寫入擴充指令命令
WriteCommand(0x36); //顯示圖象
}
void LCD12864RSPI::DrawFullScreen(uchar *p)
{
int ygroup,x,y,i;
int temp;
int tmp;
for(ygroup=0;ygroup<64;ygroup++) //寫入液晶上半圖象部分
{ //寫入坐標
if(ygroup<32)
{
x=0x80;
y=ygroup+0x80;
}
else
{
x=0x88;
y=ygroup-32+0x80;
}
WriteCommand(0x34); //寫入擴充指令命令
WriteCommand(y); //寫入y軸坐標
WriteCommand(x); //寫入x軸坐標
WriteCommand(0x30); //寫入基本指令命令
tmp=ygroup*16;
for(i=0;i<16;i++)
{
temp=p[tmp++];
WriteData(temp);
}
}
WriteCommand(0x34); //寫入擴充指令命令
WriteCommand(0x36); //顯示圖象
}
LCD12864RSPI LCDA = LCD12864RSPI();

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/* write by davidce
davidce@163.com
2013.6.10
v1.0
*/
//********************************************
//low level function
//********************************************
/**********************************************
* // Write Command
**********************************************/
static void write_command(unsigned char Command_value)
{
digitalWrite(CS, LOW);
digitalWrite(DC, LOW);
DATAPORT2 = (DATAPORT2 & DATA1_MASK) |
(Command_value & DATA2_MASK);
DATAPORT1 = (DATAPORT1 & DATA2_MASK) |
(Command_value & DATA1_MASK); // top 6 bits
digitalWrite(CS, HIGH);
}
/**********************************************
* // Write Data
**********************************************/
static void write_Data(unsigned char Data_value)
{
digitalWrite(CS, LOW);
digitalWrite(DC, HIGH);
DATAPORT2 = (DATAPORT2 & DATA1_MASK) |
(Data_value & DATA2_MASK);
DATAPORT1 = (DATAPORT1 & DATA2_MASK) |
(Data_value & DATA1_MASK); // top 6 bits
digitalWrite(CS, HIGH);
}
/********************************************
* // Draw Picture
********************************************/
static void drawPicFromFlash(uint8_t x0,uint8_t y0,uint8_t w,uint8_t h,const PROGMEM char *c)
{
digitalWrite(DC, LOW); //solve a bug of write_command defore write_data
write_command(0x15); //set column address
write_command(x0); //column address start 00
write_command(x0+w-1); //column address end 95
write_command(0x75); //set row address
write_command(y0); //row address start 00
write_command(y0+h-1); //row address end 63
unsigned char k,i;
for(k=0;k<h;k++)
{
for(i=0;i<w;i++)
{
write_Data(pgm_read_byte(c++));
write_Data(pgm_read_byte(c++));
}
}
}
/********************************************
* // Fill color
********************************************/
static void fill_color (uint8_t startx,uint8_t endx,uint8_t starty,uint8_t endy,unsigned char dat1,unsigned char dat2)
{
digitalWrite(DC, LOW); //solve a bug of write_command defore write_data
write_command(0x15); //set column address
write_command(startx); //column address start 00
write_command(endx-1); //column address end 95
write_command(0x75); //set row address
write_command(starty); //row address start 00
write_command(endy-1); //row address end 63
unsigned char k,i;
for(k=starty;k<endy;k++)
{
for(i=startx;i<endx;i++)
{
write_Data(dat1);
write_Data(dat2);
}
}
}
/********************************************
* // DrawRectangle
********************************************/
static void drawRectangle(unsigned char startx,unsigned char starty,
unsigned char endx,unsigned char endy,
unsigned char BcolorR,unsigned char BcolorB,unsigned char BcolorG,
unsigned char FcolorR,unsigned char FcolorB,unsigned char FcolorG,
boolean isFill)
{
digitalWrite(DC, LOW); //solve a bug of write_command defore write_data
write_command(0x26);
if(isFill)
{
write_command(0x01);
}
else
{
write_command(0x00);
}
write_command(0x22);
write_command(startx);
write_command(starty);
write_command(endx);
write_command(endy);
write_command(BcolorR);
write_command(BcolorB);
write_command(BcolorG);
write_command(FcolorR);
write_command(FcolorB);
write_command(FcolorG);
}
/********************************************
* // cover color format from 888 to 565
********************************************/
static uint16_t Color565(uint8_t r, uint8_t g, uint8_t b) {
uint16_t c;
c = r >> 3;
c <<= 6;
c |= g >> 2;
c <<= 5;
c |= b >> 3;
return c;
}
/********************************************
* // DrawLine
********************************************/
static void drawLine(unsigned char startx,unsigned char starty,
unsigned char endx,unsigned char endy,
unsigned char colorR,unsigned char colorB,unsigned char colorG)
{
digitalWrite(DC, LOW); //solve a bug of write_command
write_command(0x21);
write_command(startx);
write_command(starty);
write_command(endx);
write_command(endy);
write_command(colorR);
write_command(colorB);
write_command(colorG);
}
/***************************************************/
//oled Initial
/***************************************************/
static void Initial_SSD1330ZB()
{
write_command(0xfd); // command lock
write_command(0x12);
write_command(0xae); // display off
write_command(0xa4); // Normal Display mode
write_command(0x15); //set column address
write_command(0x00); //column address start 00
write_command(0x5f); //column address end 95
write_command(0x75); //set row address
write_command(0x00); //row address start 00
write_command(0x3f); //row address end 63
write_command(0x87); //master current control
write_command(0x0A);
write_command(0x81); //Set Contrast for Color A
write_command(0x85); //91
write_command(0x82); //Set Contrast for Color B
write_command(0x56); //50
write_command(0x83); //Set Contrast for Color C
write_command(0x7f); //7d
write_command(0x8a); // set scond pre-change speed of Color A
write_command(0x64);
write_command(0x8b); // set scond pre-change speed of Color B
write_command(0x78);
write_command(0x8c); // set scond pre-change speed of Color C
write_command(0x64);
write_command(0xa0); //set re-map & data format
write_command(0x72); //Horizontal address increment
write_command(0xa1); //set display start line
write_command(0x00); //start 00 line
write_command(0xa2); //set display offset
write_command(0x00);
write_command(0xa8); //set multiplex ratio
write_command(0x3f); //64MUX
write_command(0xb0); //set power save
write_command(0x1a);
write_command(0xb1);
write_command(0xf1); // Phase 2 period Phase 1 period
write_command(0xb3); // Set Display Clock Divide Ratio/ Oscillator Frequency
write_command(0xd0);
write_command(0xbb); // set pre-charge
write_command(0x3e);
write_command(0xbe); //set Vcomh
write_command(0x3e);
write_command(0xad); //Select external VCC supply at Display ON
write_command(0x8e); //Select External VP voltage supply
write_command(0xaf); //display on
}
//********************************************
//high level function
//********************************************
/********************************************
* // DrawPixel
********************************************/
static void drawPixel(unsigned char px,unsigned char py,
unsigned char colorR,unsigned char colorB,unsigned char colorG)
{
drawLine(px,py,px,py,colorR,colorB,colorG);
}
/********************************************
* // draw a character
********************************************/
static void drawChar(uint8_t x, uint8_t y, char c,uint8_t colorR,uint8_t colorB,uint8_t colorG,uint8_t size) {
uint8_t tempx,tempy;
uint8_t i,j;
for (i =0; i<5; i++ ) {
uint8_t line = pgm_read_byte(font+(c*5)+i);
for (j = 0; j<8; j++) {
if (line & 0x1) {
if (size == 1) // default size
drawPixel(x+i, y+j, colorR,colorB,colorG);
else { // big size
tempx= x+i*size;
tempy= y+j*size;
drawRectangle(tempx,tempy,tempx + size,tempy + size, colorR,colorB,colorG,colorR,colorB,colorG,true);
}
}
line >>= 1;
}
}
}
/********************************************
* // DrawString
********************************************/
static void drawString(uint8_t x, uint8_t y, char *c,uint8_t colorR,uint8_t colorB,uint8_t colorG,uint8_t size) {
if(size>0)
{
while (c[0] != 0) {
drawChar(x, y, c[0], colorR,colorB,colorG, size);
x += size*6;
c++;
}
}
}
/********************************************
* // DrawCircleHelper
********************************************/
static void drawCircleHelper(uint8_t x0, uint8_t y0,
uint8_t r, uint8_t cornername,
uint8_t colorR,uint8_t colorB,uint8_t colorG) {
int16_t f = 1 - r;
int16_t ddF_x = 1;
int16_t ddF_y = -2 * r;
int16_t x = 0;
int16_t y = r;
while (x<y) {
if (f >= 0) {
y--;
ddF_y += 2;
f += ddF_y;
}
x++;
ddF_x += 2;
f += ddF_x;
if (cornername & 0x4) {
drawPixel(x0 + x, y0 + y, colorR,colorB,colorG);
drawPixel(x0 + y, y0 + x, colorR,colorB,colorG);
}
if (cornername & 0x2) {
drawPixel(x0 + x, y0 - y, colorR,colorB,colorG);
drawPixel(x0 + y, y0 - x, colorR,colorB,colorG);
}
if (cornername & 0x8) {
drawPixel(x0 - y, y0 + x, colorR,colorB,colorG);
drawPixel(x0 - x, y0 + y, colorR,colorB,colorG);
}
if (cornername & 0x1) {
drawPixel(x0 - y, y0 - x, colorR,colorB,colorG);
drawPixel(x0 - x, y0 - y, colorR,colorB,colorG);
}
}
}
/********************************************
* // DrawCircle
********************************************/
static void drawCircle(uint8_t x0, uint8_t y0,
uint8_t r,
uint8_t colorR,uint8_t colorB,uint8_t colorG)
{
drawCircleHelper(x0, y0, r, 0xF, colorR,colorB,colorG);
drawPixel(x0, y0+r, colorR,colorB,colorG);
drawPixel(x0, y0-r, colorR,colorB,colorG);
drawPixel(x0+r, y0, colorR,colorB,colorG);
drawPixel(x0-r, y0, colorR,colorB,colorG);
}
/********************************************
* // drawTriangle
********************************************/
static void drawTriangle(uint8_t x0, uint8_t y0,
uint8_t x1, uint8_t y1,
uint8_t x2, uint8_t y2,
unsigned char colorR,unsigned char colorB,unsigned char colorG)
{
drawLine(x0, y0, x1, y1, colorR,colorB,colorG);
drawLine(x1, y1, x2, y2, colorR,colorB,colorG);
drawLine(x2, y2, x0, y0, colorR,colorB,colorG);
}
/********************************************
* // init color OLED
********************************************/
static void initOLED()
{
pinMode(CS, OUTPUT);
pinMode(DC, OUTPUT);
pinMode(RES, OUTPUT);
//set pin output mode
DATADDR2 |= DATA2_MASK;
DATADDR1 |= DATA1_MASK;
//reset oled model
digitalWrite(RES, LOW);
delay(50);
digitalWrite(RES, HIGH);
delay(50);
Initial_SSD1330ZB();
fill_color(0,96,0,64,0x00,0x00);
}

復制代碼

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