I'm trying to make a LCD TFT work with my UNO R4 WIFI.
The screen is from WHADDA : WHADDA
Specifications:
Resolution: 240 RGB (H) x 320 (V)
Display driver: ILI9341 V0.7
Colour depth: 262 000 colours
System interface:
8-bits, 9-bits, 16-bits, 18-bits interface with 8080-I /8080-II series MCU
6-bits, 16-bits, 18-bits RGB interface with graphic controller
3-line / 4-line serial interface
Display mode:
Full colour mode (idle mode OFF): 262 000 colour (selectable colour depth mode by software)
Reduced colour mode (idle mode ON): 8-colour
Operating temperature: -40...85°C
I have downloaded code and library from their site (WMA412) , but it's from 2016, so not supporting the R4. They include several examples, e.g. example 01: Simple Test for UNO:
//Technical support:support@openplatform.cc
// Breakout/Arduino UNO pin usage:
// LCD Data Bit : 7 6 5 4 3 2 1 0
// Uno dig. pin : 7 6 5 4 3 2 9 8
// Uno port/pin : PD7 PD6 PD5 PD4 PD3 PD2 PB1 PB0
// Mega dig. pin: 29 28 27 26 25 24 23 22
#define LCD_RD A0
#define LCD_WR A1
#define LCD_RS A2
#define LCD_CS A3
#define LCD_REST A4
void Lcd_Writ_Bus(unsigned char d)
{
PORTD = (PORTD & B00000011) | ((d) & B11111100);
PORTB = (PORTB & B11111100) | ((d) & B00000011);
*(portOutputRegister(digitalPinToPort(LCD_WR))) &= ~digitalPinToBitMask(LCD_WR);
*(portOutputRegister(digitalPinToPort(LCD_WR)))|= digitalPinToBitMask(LCD_WR);
}
void Lcd_Write_Com(unsigned char VH)
{
*(portOutputRegister(digitalPinToPort(LCD_RS))) &= ~digitalPinToBitMask(LCD_RS);//LCD_RS=0;
Lcd_Writ_Bus(VH);
}
void Lcd_Write_Data(unsigned char VH)
{
*(portOutputRegister(digitalPinToPort(LCD_RS)))|= digitalPinToBitMask(LCD_RS);//LCD_RS=1;
Lcd_Writ_Bus(VH);
}
void Lcd_Write_Data_16(unsigned int dat)
{
*(portOutputRegister(digitalPinToPort(LCD_RS)))|= digitalPinToBitMask(LCD_RS);//LCD_RS=1;
Lcd_Writ_Bus(dat>>8);
Lcd_Writ_Bus(dat);
}
void Lcd_Write_Com_Data(unsigned char com,unsigned char dat)
{
Lcd_Write_Com(com);
Lcd_Write_Data(dat);
}
void LCD_WriteReg(unsigned char com,unsigned int dat)
{
Lcd_Write_Com(com);
Lcd_Write_Data_16(dat);
}
void Address_set(unsigned int x1,unsigned int y1,unsigned int x2,unsigned int y2)
{
Lcd_Write_Com(0x50);
Lcd_Write_Data_16(x1);
Lcd_Write_Com(0x51);
Lcd_Write_Data_16(x2);
Lcd_Write_Com(0x52);
Lcd_Write_Data_16(y1);
Lcd_Write_Com(0x53);
Lcd_Write_Data_16(y2);
Lcd_Write_Com(0x20);
Lcd_Write_Data_16(x1);
Lcd_Write_Com(0x21);
Lcd_Write_Data_16(y1);
Lcd_Write_Com(0x22);
}
void Lcd_Init(void)
{
digitalWrite(LCD_REST,HIGH);
delay(50);
digitalWrite(LCD_REST,LOW);
delay(150);
digitalWrite(LCD_REST,HIGH);
delay(150);
digitalWrite(LCD_CS,HIGH);
digitalWrite(LCD_WR,HIGH);
digitalWrite(LCD_CS,LOW); //CS
LCD_WriteReg(0x0000,0x0001);
delay(100); //at least 100ms
LCD_WriteReg( 0x0001,0x0100); // set SS and SM bit
LCD_WriteReg(0x0010,0x1790);
LCD_WriteReg(0x0060,0xA700);
LCD_WriteReg(0x0061,0x0001);
LCD_WriteReg( 0x0046,0x0002);
LCD_WriteReg(0x0013,0x8010);
LCD_WriteReg(0x0012,0x80fe);
LCD_WriteReg(0x0002,0x0500);
LCD_WriteReg(0x0003,0x1030);
LCD_WriteReg(0x0030,0x0303);
LCD_WriteReg(0x0031,0x0303);
LCD_WriteReg(0x0032,0x0303);
LCD_WriteReg(0x0033,0x0300);
LCD_WriteReg(0x0034,0x0003);
LCD_WriteReg(0x0035,0x0303);
LCD_WriteReg(0x0036,0x0014);
LCD_WriteReg(0x0037,0x0303);
LCD_WriteReg(0x0038,0x0303);
LCD_WriteReg(0x0039,0x0303);
LCD_WriteReg(0x003a,0x0300);
LCD_WriteReg(0x003b,0x0003);
LCD_WriteReg(0x003c,0x0303);
LCD_WriteReg(0x003d,0x1400);
LCD_WriteReg(0x0092,0x0200);
LCD_WriteReg(0x0093,0x0303);
LCD_WriteReg(0x0090,0x080d);
LCD_WriteReg(0x0001, 0x0100); // set SS and SM bit 0100
LCD_WriteReg( 0x0002, 0x0700); // set 1 line inversion
LCD_WriteReg(0x0003, 0x1030); // set GRAM write direction and BGR=1.
LCD_WriteReg(0x0004, 0x0000); // Resize register
LCD_WriteReg(0x0008, 0x0302); // set the back porch and front porch
LCD_WriteReg(0x0009, 0x0000); // set non-display area refresh cycle ISC[3:0]
LCD_WriteReg(0x000A, 0x0000);// FMARK function
LCD_WriteReg(0x000C, 0x0000); // RGB interface setting
LCD_WriteReg(0x000D, 0x0000); // Frame marker Position
LCD_WriteReg(0x000F, 0x0000); // RGB interface polarity
delay(120);
LCD_WriteReg(0x0030,0x0303);
LCD_WriteReg(0x0031,0x0303);
LCD_WriteReg(0x0032,0x0303);
LCD_WriteReg( 0x0033,0x0300);
LCD_WriteReg(0x0034,0x0003);
LCD_WriteReg(0x0035,0x0303);
LCD_WriteReg(0x0036,0x0014);
LCD_WriteReg(0x0037,0x0303);
LCD_WriteReg(0x0038,0x0303);
LCD_WriteReg(0x0039,0x0303);
LCD_WriteReg(0x003a,0x0300);
LCD_WriteReg(0x003b,0x0003);
LCD_WriteReg(0x003c,0x0303);
LCD_WriteReg(0x003d,0x1400);
LCD_WriteReg(0x0060, 0xA700); // Gate Scan
LCD_WriteReg(0x0061, 0x0001); // NDL,VLE, REV
LCD_WriteReg( 0x006A, 0x0000); // set scrolling line
LCD_WriteReg(0x0090, 0x0033);
LCD_WriteReg(0x0095, 0x0110);
LCD_WriteReg(0x00FF, 0x0001);
LCD_WriteReg(0x00FF, 0x000C);
LCD_WriteReg(0x00FF, 0x0000);
delay(100);
LCD_WriteReg(0x0003,0x1030); // set GRAM write direction and BGR=1.
LCD_WriteReg(0x0007,0x0173);
delay(50);
}
void H_line(unsigned int x, unsigned int y, unsigned int l, unsigned int c)
{
unsigned int i,j;
Lcd_Write_Com(0x02c); //write_memory_start
digitalWrite(LCD_RS,HIGH);
digitalWrite(LCD_CS,LOW);
l=l+x;
Address_set(x,y,l,y);
j=l*2;
for(i=1;i<=j;i++)
{
Lcd_Write_Data(c);
}
digitalWrite(LCD_CS,HIGH);
}
void V_line(unsigned int x, unsigned int y, unsigned int l, unsigned int c)
{
unsigned int i,j;
Lcd_Write_Com(0x02c); //write_memory_start
digitalWrite(LCD_RS,HIGH);
digitalWrite(LCD_CS,LOW);
l=l+y;
Address_set(x,y,x,l);
j=l*2;
for(i=1;i<=j;i++)
{
Lcd_Write_Data(c);
}
digitalWrite(LCD_CS,HIGH);
}
void Rect(unsigned int x,unsigned int y,unsigned int w,unsigned int h,unsigned int c)
{
H_line(x , y , w, c);
H_line(x , y+h, w, c);
V_line(x , y , h, c);
V_line(x+w, y , h, c);
}
void Rectf(unsigned int x,unsigned int y,unsigned int w,unsigned int h,unsigned int c)
{
unsigned int i;
for(i=0;i<h;i++)
{
H_line(x , y , w, c);
H_line(x , y+i, w, c);
}
}
int RGB(int r,int g,int b)
{return r << 16 | g << 8 | b;
}
void LCD_Clear(unsigned int j)
{
unsigned int i,m;
Address_set(0,0,240-1,320-1);
//Lcd_Write_Com(0x02c); //write_memory_start
//digitalWrite(LCD_RS,HIGH);
digitalWrite(LCD_CS,LOW);
for(i=0;i<320;i++)
for(m=0;m<240;m++)
{
Lcd_Write_Data(j>>8);
Lcd_Write_Data(j);
}
digitalWrite(LCD_CS,HIGH);
}
void setup()
{
for(int p=0;p<10;p++)
{
pinMode(p,OUTPUT);
}
pinMode(A0,OUTPUT);
pinMode(A1,OUTPUT);
pinMode(A2,OUTPUT);
pinMode(A3,OUTPUT);
pinMode(A4,OUTPUT);
digitalWrite(A0, HIGH);
digitalWrite(A1, HIGH);
digitalWrite(A2, HIGH);
digitalWrite(A3, HIGH);
digitalWrite(A4, HIGH);
Lcd_Init();
//LCD_Clear(0xf800);
}
void loop()
{
LCD_Clear(0xffff);
LCD_Clear(0x0000);
LCD_Clear(0xf800);
LCD_Clear(0x07E0);
LCD_Clear(0x001F);
/*
for(int i=0;i<1000;i++)
{
Rect(random(300),random(300),random(300),random(300),random(65535)); // rectangle at x, y, with, hight, color
}*/
// LCD_Clear(0xf800);
}
I get the compile error: Compilation error: 'PORTD' was not declared in this scope
It make sense due to the old code. But what can I do? Reading around and watching YouTube tells me that it might not be that easy to make the code work for the R4, since a lot is made for the older models. I don't have knowledge to make it from the bottom, This is my first try with Arduino and coding/building, so I need something running that I can modify. My IDE works, I can download examples for modifying the on-board LED's. Can someone point me to some examples that will work on my set-up with the LCD/TCT panel ?
