Driving SED1330 with dSPic33FJ256GP710!

[drkidd22]

I have a LM6733 LCD module which has a SED1330 display controller. I'm trying to use the Explorer 16 to display some simple message on the screen just to get me started, but I have not been successful at it.

I have the lower 8 bits of PORTE on the pic set for the data lines and PORTA for the control lines. Below is the code of what I have so far and have not been able to display anything on the screen. I'm using the pictail PBC and have tested everything. 100% sure that the wiring is correct.

/**********************************************************************************
This part of the project contains all #Define directives and the LCD Initialization
Date: 03/25/2010
LCD Model: LM6733
LCD Controller: SED1330
***********************************************************************************/

#include "p33FJ256GP710.h"

_FOSCSEL(FNOSC_PRIPLL);
_FOSC(FCKSM_CSDCMD & OSCIOFNC_OFF & POSCMD_XT);
_FWDT(FWDTEN_OFF);

#define LCD_DATA     PORTE   // Port for data transfer.(PIC RE0-RE7 <<------>> LCD DB0-DB7)
#define DDR_DATA      TRISE   // Port E Data direction controll

#define DDR_CTRL      TRISA   // Port A Data direction controll

#define GLCD_COMMAND   PORTAbits.RA0     /* A0 Pin       PIC RA0
#define GLCD_CS        PORTAbits.RA1     /* Chip Select  PIC RA1
#define GLCD_WR        PORTAbits.RA2     /* WR Pin       PIC RA2
#define GLCD_RD        PORTAbits.RA3     /* RD Pin       PIC RA3
#define GLCD_RESET     PORTAbits.RA4     /* Reset Pin    PIC RA4

#define  Hi     1   
#define  Lo     0   

#define LCD_RESX       320   /* Grafic resolution X */
#define LCD_RESY       240   /* Grafic resolution Y */
#define LCD_CHARPERROW 40    /* maximum is ( GLCD_RESX / GLCD_CHARWIDTH ) */
#define LCD_CHARROWS   16    /* should be calculated from RESY/CHARHEIGHT */
#define LCD_CHARWIDTH  8     /* = GLCD_RESX / GLCD_CHARPERROW */
#define LCD_CHARHEIGHT 8

#define SYSSET          0x40    /* System Set                              */
#define SLEEPIN          0x53    /* Enter standby mode                      */
#define DISPOFF       0x58    /* Display on                              */
#define DISPON        0x59    /* Display off                             */
#define SCROLL        0x44    /* Display Start Addr & Display regions    */
#define CSRFORM       0x5D    /* Set Cursor Type                         */
#define CGRAM         0x5C    /* Start Addr Char. Generator Ram          */
#define CSRDIR        0x4C    /* Direction of cursor movement            */
#define HDOTSCR       0x5A    /* Horizontal Scroll Position              */
#define OVERLAY       0x5B    /* Display Overlay format                  */
#define CSRW          0x46    /* Set Cursor Address                      */
#define CSRR          0x47    /* Read Cursor Address                     */
#define MWRITE        0x42    /* Write to Display Memory                 */
#define MREAD         0x43    /* Read from Display Memory                */

/*********************************************************/
/* send Command to Controler                             */
/*********************************************************/
void lcdSndCmd(unsigned  char command )
{
    LCD_RD = Hi;
    LCD_DATA  = command;

    LCD_COMMAND = Hi;
    LCD_CS = Lo;
    LCD_WR = Lo;
            //short_delay;
    LCD_CS = Hi;
    LCD_WR = Hi;
    LCD_COMMAND = Lo;
}

/*********************************************************/
/* send Data to Controller                               */
/*********************************************************/
void lcdSndData(unsigned char value )
{
    LCD_DATA    = value;

    LCD_COMMAND = Lo;
    LCD_RD = Hi;
    LCD_CS = Lo;
    LCD_WR = Lo;
            //short_delay;
    LCD_CS = Hi;
    LCD_WR = Hi;
}

/*********************************************************/
/* Reset Controller                                      */
/*********************************************************/
void LCD_Reset(void)
{
int i;
volatile int j;

    DDR_DATA = 0x00;
    DDR_CTRL = 0x00;

    LCD_RD = Hi;
    LCD_WR = Hi;
    LCD_DATA    = 255;
    LCD_COMMAND = Hi;

    LCD_RESET = Lo;
    for (i = 0; i < 1000; i++)
    {  j++;
       LCD_RESET = Lo;
    }
    for (i = 0; i < 1000; i++)
    {  j++;
       LCD_RESET = Hi;
    }

    LCD_RESET = Hi;
    LCD_CS = Hi;
}

void LCD_Init(void)
{
  DDR_DATA  = 0x00;
  DDR_CTRL  = 0x00;

  lcdSndCmd(SYSSET);
  lcdSndData(0x30);
  lcdSndData((LCD_CHARWIDTH-1)|0x80);    
  lcdSndData(LCD_CHARHEIGHT-1);       
  lcdSndData(LCD_CHARPERROW-1);       
  lcdSndData(LCD_CHARPERROW+4);       
  lcdSndData(LCD_RESY-1);             
  lcdSndData(LCD_CHARPERROW);         
  lcdSndData(0);                      

  lcdSndCmd(OVERLAY);
  lcdSndData(1);   
        
  lcdSndCmd(SCROLL);
  lcdSndData(0);           
  lcdSndData(0);           
  lcdSndData(LCD_RESY-1);    
  lcdSndData(0x80);        
  lcdSndData(0x02);        
  lcdSndData(LCD_RESY-1);
 
  lcdSndCmd(CSRFORM);
  lcdSndData(0x05);       
  lcdSndData(0x85);         

  lcdSndCmd(HDOTSCR);  
  lcdSndData(0x0);          

  lcdSndCmd(CSRDIR);    

  lcdSndCmd(DISPON);  
  lcdSndData(0x14);         
//  currTextx=0;
//  currTexty=0;

lcdSndCmd(MWRITE);
lcdSndData(0x4D);     //M
cdSndData(0x49);        //I
cdSndData(0x46);         //C
cdSndData(0x52);          //R
cdSndData(0x4F);           //O

}

int main(void)
{
        PLLFBD = 0x00A0;
        CLKDIV = 0x0048;

unsigned char c;
int i;

   //Init LCD Dispay
    LCD_Reset();
    LCD_Init();
}

MPLAB v8.46
ICD2
LED Jumper from explorer 16 removed
Any help will be appreciated.

 

[drkidd22]

Anyone? I would really appreciate some help here.