Discussion in "Project Doubts" started by    hareeshchamiyar    Mar 29, 2018.
Thu Mar 29 2018, 08:21 AM
#1
i am trying to make program for lcd interfacing with dspic30f2010 in 4 bit mode.i wrote the c program.and i successfully compiled with mplab xc16.but i didn't out put in bread board.
here is my program

#include "p30f2010.h"
#include "libpic30.h"
#include"xc.h"
#include"LCD Display.h"
_FOSC( CSW_FSCM_OFF & XT_PLL4);
_FWDT(WDT_OFF );
_FBORPOR(PBOR_ON & BORV_27 );
_FGS(CODE_PROT_OFF);

#define lcd LATC,LATD,LATF,LATE
#define FCY 5000000UL // =FOSC/4
#define rs LATFbits.LATF2
#define en LATFbits.LATF3
#define DB4 LATEbits.LATE8
#define DB5 LATDbits.LATD0
#define DB6 LATCbits.LATC14
#define DB7 LATCbits.LATC13


void lcd_init(void);
void toggle();
void lcd_cmd_hf(char v1);
void lcd_cmd(char v2);
void lcd_dwr(char v3);
void lcd_msg(char *c);
void delay(int ms);

int main(void)
{
lcd_init();

lcd_cmd(0x01); // Clear screen

delay(10);

lcd_cmd(0x80); // Initially at first line

lcd_msg("hello");

while(1==1);

}
void toggle()
{
LATFbits.LATF3 = 1;
delay(10);
LATFbits.LATF3 = 0;
}
void lcd_cmd_hf(char v1)
{
LATFbits.LATF2=0;
lcd &=0x0F;
lcd |=(v1&0xF0);
toggle();

}
void lcd_cmd(char v2)
{
LATFbits.LATF2=1;
lcd&=0x0F;
lcd |=(v2&0XF0);
toggle();
lcd &=0x0F;
lcd |=((v2&0x0F)<<4);
}
void lcd_dwr(char v3)
{
LATFbits.LATF2=1;
lcd &=0x0F;
lcd |=(v3&0xF0);
toggle();

lcd &=0x0f;
lcd |=((v3&0x0F)>>4);
toggle();
}
void lcd_init()
{
TRISC=0;
TRISB=0;
TRISF=0;
TRISE=0;
TRISD=0;
delay(20);
lcd_cmd_hf(0x20);//4 BIT LINE 1
delay(10);
lcd_cmd(0x20);//4 BIT LINE 1
delay(1);
lcd_cmd(0x0c);//DISPLAY ON CURSOR OFF
delay(1);
lcd_cmd(0x01);//CLEAR DISPLAY
delay(1);
lcd_cmd(0x06);//DISPLAY ON
delay(1);
lcd_cmd(0x80);//
delay(1);
}
void delay(int ms)
{
int i,j;
for(i=1;i<=32767;i++);
for(j=1;j<=32767;j++);
}
void lcd_msg(char *c)
{
while(*c !=0);
lcd_dwr(*c++);
}

somebody please help me.
thanks


[img] Schematic_TEST_Sheet-1_20180329182820.jpg [img]


[ Edited Thu Mar 29 2018, 01:12 PM ]
Thu Mar 29 2018, 08:24 PM
#2
Schematic_TEST_Sheet-1_20180329182820.jpg did not upload.
Try zipping and attaching.

Have you got a basic flashing LED test working ?


[ Edited Thu Mar 29 2018, 08:29 PM ]
Fri Mar 30 2018, 06:31 AM
#3
THANKS FOR U R REPLAY .IF U HAVE THE PROGRAM FOR LED INTERFACING WITH DSPIC30F2010.PLEASE FORWARD ME.
THANKS.
Sat Mar 31 2018, 12:03 AM
#4
I think this is what you need to get an understanding of the setup.

https://singularengineer.com/dspicpic24-configuration-bits-and-oscillator-settingsusing-xc16-and-mplab-x/


[ Edited Sat Mar 31 2018, 12:04 AM ]

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