i have a nokia 6610 lcd with philips controller. i am interfacing it with atmega32 at 1mhz crystal and jtag disabled. i am using winavr WinAVR 20080430.
this is the code for making a multicolour box at the center of lcd.
please help me and correct this code i write(or say modified from the codes available on internet) ----
#include <avr/io.h>
#include <util/delay.h>
#define F_CPU 1000000UL
#define SPIPORT PORTB
#define SPIDDR DDRB
#define CS 2
#define SDA 3
#define RESET 4
#define CLK 5
#define cbi(reg, bit) (reg&=~(1<<bit))
#define sbi(reg, bit) (reg|= (1<<bit))
#define CS0 cbi(SPIPORT,CS);
#define CS1 sbi(SPIPORT,CS);
#define CLK0 cbi(SPIPORT,CLK);
#define CLK1 sbi(SPIPORT,CLK);
#define SDA0 cbi(SPIPORT,SDA);
#define SDA1 sbi(SPIPORT,SDA);
#define RESET0 cbi(SPIPORT,RESET);
#define RESET1 sbi(SPIPORT,RESET);
#define byte unsigned char
byte n=0;
byte s1,s2;
byte r,g,b;
void sendCMD(byte cmd);
void sendData(byte cmd);
void shiftBits(byte b);
void setPixel(byte r,byte g,byte b);
void waitms(int ms)
{
int j;
for (j=0;j<ms;j++)
{
_delay_ms(1);
}
}
int main (void)
{
int i;
DDRB = 0xFF;
SPIDDR=(1<<SDA)|(1<<CLK)|(1<<CS)|(1<<RESET); //Port-Direction Setup
//hardware reset
CS0
SDA0
CLK1
RESET1
RESET0
waitms(10);
RESET1
CLK0
SDA1
CLK1
waitms(10);
//Software Reset
sendCMD(0x01);
//Sleep Out
sendCMD(0x11);
//Set Constrast
sendCMD(0x25);
sendData(0x3F);
//Booster ON
sendCMD(0x03);
waitms(10);
//Display inversion on
sendCMD(0x21);
//Normal display mode
sendCMD(0x13);
//Data order
sendCMD(0xBA);
//Memory data access control
sendCMD(0x36);
//Colour 8 bit
sendCMD(0x3A);
sendData(2);
// setup color lookup table
sendCMD(0x2D);
sendData(0); // red 000 value
sendData(2); // red 001 value
sendData(5); // red 010 value
sendData(7); // red 011 value
sendData(9); // red 100 value
sendData(11); // red 101 value
sendData(14); // red 110 value
sendData(16); // red 111 value
sendData(0); // green 000 value
sendData(2); // green 001 value
sendData(5); // green 010 value
sendData(7); // green 011 value
sendData(9); // green 100 value
sendData(11); // green 101 value
sendData(14); // green 110 value
sendData(16); // green 111 value
sendData(0); // blue 000 value
sendData(6); // blue 001 value
sendData(11); // blue 010 value
sendData(15); // blue 011 value
// nop
sendCMD(0x00);
//Display On
sendCMD(0x29);
//Column Adress Set
sendCMD(0x2A);
sendData(0);
sendData(131);
//Page Adress Set
sendCMD(0x2B);
sendData(0);
sendData(131);
// write some stuff (background)
sendCMD(0x2c);
for (i = 0; i < 18000; i++)
{
sendData(28); // 28 is green
}
waitms(200);
// draw a multi-colored square in the center of screen
for (i = 0; i < 4096; i++){
setPixel(i, (i % 64) + 32, (i / 64) + 32);
}
while(1==1)
{
// now add here your code
}
}
void shiftBits(byte b) {
CLK0
if ((b&128)!=0) SDA1 else SDA0
CLK1
CLK0
if ((b&64)!=0) SDA1 else SDA0
CLK1
CLK0
if ((b&32)!=0) SDA1 else SDA0
CLK1
CLK0
if ((b&16)!=0) SDA1 else SDA0
CLK1
CLK0
if ((b&8)!=0) SDA1 else SDA0
CLK1
CLK0
if ((b&4)!=0) SDA1 else SDA0
CLK1
CLK0
if ((b&2)!=0) SDA1 else SDA0
CLK1
CLK0
if ((b&1)!=0) SDA1 else SDA0
CLK1
}
void setPixel(unsigned char color, unsigned char x, unsigned char y)
{
x += 2; // for some reason starts at 2
sendCMD(0x2B); // page start/end ram
sendData(x);
sendData(132);
sendCMD(0x2A); // column start/end ram
sendData(y); // for some reason starts at 2
sendData(131);
sendCMD(0x2C); // write some shit
sendData(color);
}
//send data
void sendData(byte data) {
CLK0
SDA1 //1 for param
CLK1
shiftBits(data);
}
//send cmd
void sendCMD(byte data) {
CLK0
SDA0 //1 for cmd
CLK1
shiftBits(data);
}
my configuration is ----
1 VDD 3,3V
2 Reset ------------- PORTB4
3 SDATA ------------ PORTB3
4 SCLK ------------ PORTB5
5 CS ------------ PORTB2
6 VLCD 3,3V
7 NC
8 GND
9 LED-
10 LED+ (7V)
11 NC