CCS C Software and Maintenance Offers
FAQFAQ   FAQForum Help   FAQOfficial CCS Support   SearchSearch  RegisterRegister 

ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

CCS does not monitor this forum on a regular basis.

Please do not post bug reports on this forum. Send them to CCS Technical Support
Graphics LCD COG Module with KS0724 Driver

 
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion
View previous topic :: View next topic  
Author Message
prayami



Joined: 22 Dec 2004
Posts: 78

View user's profile Send private message

Graphics LCD COG Module with KS0724 Driver
PostPosted: Wed Jun 08, 2005 7:32 pm     Reply with quote
Hi..

I got Graphics LCD COG module which has KS0724 driver.
Here I have posted the code that I have made to initialize this LCD.
I tried a lot but could not get success.

Can anybody have some code or any suggestion?

The LCD is from Clover Display and datasheet is at following address.
http://www.cloverdisplay.com/pdf/cv9007e.pdf

And datasheet for KS0724 is at

http://www.ortodoxism.ro/datasheets/SamsungElectronic/mXuytxq.pdf

Quote:



#CASE
#include <18F4525.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP,BROWNOUT,PUT,NOPBADEN,NOXINST,NOMCLR,NOLPT1OSC
#use delay(clock=20000000)

#define CS PIN_B0 //= LCD pin 21
#define RES PIN_B1 //= LCD pin 20
#define RS PIN_B2 //= LCD pin 19
#define WR PIN_B5 //= LCD pin 18
#define RD PIN_B4 //= LCD pin 17

#define DB0 PIN_D0 //= LCD pin 16-9
#define DB1 PIN_D1
#define DB2 PIN_D2
#define DB3 PIN_D3
#define DB4 PIN_D4
#define DB5 PIN_D5
#define DB6 PIN_D6
#define DB7 PIN_D7


int1 GHWWR= 1, GHWRD=1, GHWSTA=0, GHWCMD=0;
int1 DoNothing=1;


void sim_reset()
{
/* 1. Init data port setup (if required by port architecture) */

set_tris_b(0x00);
set_tris_d(0x00);

/* 2. Make C/D, /RD, /WR, /CE to outputs (if required by port architecture) */

// Check your processor hardware manual for which register to operate in order
// to configure I/O port pins as output

output_high(CS);
output_high(RD);
output_high(WR);


/* 3. Set LCD reset line /RST active low (if /RST is connected to a port bit) */
output_low(RES);

/* 4. Set LCD reset line /RST passive high (if /RST is connected to a port bit) */
output_high(RES);

}//sim_reset()

void simwrby(int1 adr, unsigned int8 dat)
{

//RES=1; //Added by Prashant for Testing
/* A: Set C/D line according to adr, Set /CE line active low */

if(adr==1)
{
output_high(RS);
}
else
{
output_low(RS);
}//if(adr==0)

output_low(CS);

/* B1: Make data port an output (if required by port architecture) */

// Check your processor hardware manual for which register to operate in order
// to configure DB port pins as outputs

set_tris_b(0x00);
set_tris_d(0x00);

output_low(WR);

/* B2: Write data to data port */
// DB = dat;

if(bit_test(dat,0))
{
output_high(DB0);
}
else
{
output_low(DB0);
}

if(bit_test(dat,1))
{
output_high(DB1);
}
else
{
output_low(DB1);
}

if(bit_test(dat,2))
{
output_high(DB2);
}
else
{
output_low(DB2);
}

if(bit_test(dat,3))
{
output_high(DB3);
}
else
{
output_low(DB3);
}

if(bit_test(dat,4))
{
output_high(DB4);
}
else
{
output_low(DB4);
}

if(bit_test(dat,5))
{
output_high(DB5);
}
else
{
output_low(DB5);
}

if(bit_test(dat,6))
{
output_high(DB6);
}
else
{
output_low(DB6);
}

if(bit_test(dat,7))
{
output_high(DB7);
}
else
{
output_low(DB7);
}


/* C: Set /WR active low, (Delay min 80 ns), */

output_low(WR);

/* D: Set /WR passive high */
output_high(WR);


/* E: Set /CE passive high */
output_high(CS);

}//simwrby

void ghw_io_init()
{


set_tris_b(0x00);
set_tris_d(0x00);

output_high(CS);
output_high(RD);
output_high(WR);
output_high(RES);


delay_ms(5);

simwrby(GHWCMD, 0xAE); /* Display Off */
simwrby(GHWCMD, 0xA5); /* Entire display on | (0-1) */

simwrby(GHWCMD, 0xA0); /* Set ADC Alternative DireCtion | (0-1) Normal vertical direction*/
simwrby(GHWCMD, 0xC0); /* Norm/reverse SHL | (0x00 or 0x08) */
simwrby(GHWCMD, 0xA3); /* LCD bias ratio 3) */

simwrby(GHWCMD, 0x20); /* Regulator resistor ration select | (0-7) */

simwrby(GHWCMD, 0x3F); /* Full Contrast-Reference Voltage Settings for contrast */

simwrby(GHWCMD, 0xA5); /* Normal display / Entire display on | (0-1) */

simwrby(GHWCMD, 0xAF); /* Display on */


delay_ms(5);

}//ghw_io_init()



void main() {


delay_ms(10);
ghw_io_init(); // Must initialize the LCD

for(;;) {

DoNothing=1;

}//for(;;)

}//main()



Thanks........
baronz
Guest
PostPosted: Wed Jan 11, 2006 2:37 am     Reply with quote
this works on pic 16F876... i tried a lot to initialize it so i think it's nice to share the knowledge :D



int x=0;

output_high(SCLK);
delay_us(10);
output_high(CS1B);
delay_us(10);
output_high(RS);
delay_us(10);
output_high(RESETB);
delay_us(10);
output_low(RESETB);
// wait for stabilizing the power
delay_ms(300);
output_high(RESETB);
delay_ms(3);

output_low(CS1B);

delay_ms(3);

istruzione = 0xA0; // ADC Select -> reverse direction
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0xC8; // SHL Select -> normal direction //C0
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0xA2; // LCD Bias Select //A2
scrivi_controllo(istruzione);

delay_ms(3);


/* Attivazione in sequenza di VC,VR,VF */

istruzione = 0x2C; // power control -> voltage converter
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0x2E; // power control -> voltage regulator
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0x2F; // power control -> voltage follower
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0x24; // Regulatore resistor select //24
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0x81; // reference voltage (1a istruzione)
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0x13; // reference voltage (2a istruzione) //0x0C
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0xA4; // entire display OFF
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0xA6; // reverse display OFF
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0xB0; // set page address -> pagina 0
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0x40; // Initial display line
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0x10; // set column address MSB -> 0 (1a istruzione)
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0x00; // set column address LSB -> 0 (2a istruzione)
scrivi_controllo(istruzione);

delay_ms(3);

istruzione = 0xAF; // Display ON
scrivi_controllo(istruzione);

delay_ms(3);

clear_all();


void scrivi_controllo(char n){ // Daniele riscritta 16/12/2005 per microchip
signed int i=0;
int bit[8]={0,0,0,0,0,0,0,0};
output_low(RS); // RS = 0 istruzione di controllo

if (n & 0x80) bit[7]=1;
if (n & 0x40) bit[6]=1;
if (n & 0x20) bit[5]=1;
if (n & 0x10) bit[4]=1;
if (n & 0x08) bit[3]=1;
if (n & 0x04) bit[2]=1;
if (n & 0x02) bit[1]=1;
if (n & 0x01) bit[0]=1;
for (i=7;i>-1;i--){ // Manda i bit dal MSB al LSB
output_low(SCLK);
if (bit[i]==0) output_low(SID);
else output_high(SID);
output_high(SCLK);
} // for
}
baronz
Guest
PostPosted: Wed Jan 11, 2006 2:39 am     Reply with quote
i forgot to say that's the code for the serial command to the display Wink
Display posts from previous:   
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group