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this is the lcd display program

 
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madhunica



Joined: 22 Dec 2013
Posts: 6

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this is the lcd display program
PostPosted: Mon Mar 17, 2014 6:10 am     Reply with quote
i have no error & warnings.... but the simulation is not come... can you help me ?

Code:
#include <16F877A.h>
#DEVICE ADC=10
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#use delay(clock=12000000)
#use rs232(baud=9600,xmit=PIN_C6,rcv=PIN_C7,TIMEOUT=5000)


//#include <flex_lcd.c>
#fuses hs, nowdt, nolvp, noprotect   //Config
#use delay (clock = 12000000)      //12MHz Crystal



//#define T0_INTS_PER_SEC76    // (20,000,000/(4*256*256))
#define T1_INTS_PER_SEC 46    // (12,000,000/(4*1*65536))
 
byte int_count1;   
#define lcd_port output_d
void Timer1_ISR(void);
void init(void);      //Function Prototype
void busy_test(void);
void display(void);

void send_command(void);
void send_data(void);
//void putdat_lcd(int data);
unsigned char PORTE, TRISE, PORTD, TRISD, RS, RW, E, BF;
unsigned char command, data;

char voltage[8];
char current[8];
char time[8];

unsigned int16 value=0;
int i, sec,dval,dval2=0;


//
//#DEVICE ADC=10;
#byte PORTE = 0x07
#byte TRISE = 0x87
#byte PORTD = 0x08
#byte TRISD = 0x88

#bit RS = PORTE.0
#bit RW = PORTE.1
#bit E  = PORTE.2
#bit BF = PORTD.7

#INT_TIMER1
void Timer1_ISR(void)
{
//setup_timer_1(T1_DISABLED);
if(--int_count1==0)
{
sec++;
int_count1=T1_INTS_PER_SEC;
}
//setup_timer_1(T1_INTERNAL|T1_DIV_BY_8);
//output_(0x00);
//Set_Timer1(1000);
//TMR1L:=0x18;
}

void displayVoltage(int adc) {
  char voltage[9];
   sprintf(voltage, "%f", (float)adc * .01960784); // Converts adc to text
   voltage[4] = '\0';                              // Limit shown digits to 3
  // glcd_rect(45, 18, 69, 25, YES, OFF);            // Clear the old voltage
//   glcd_text57(45, 18, voltage, 1, ON);            // Write the new voltage
}

void main()
{
 
 int_count1=T1_INTS_PER_SEC;
 setup_timer_1(T1_DIV_BY_1|T1_INTERNAL);
 set_timer1(0);
  enable_interrupts(INT_TIMER1);
 //setup_timer_1(T1_INTERNAL|T1_DIV_BY_8);
// ClearBit(TMR1IF);
// TMR1H =0xFC;
// TMR1L:=0x18;
 //SetBit(TMR1IF);
 //INTCON=0xC0;
 
 sec=0;
 //SetBit(TICON);
   enable_interrupts(GLOBAL);
 //set_timer1(1000);
 init();
 
  busy_test();
   command = 0x81;   //Set DDRAM Address To 0x00
   send_command();
  delay_ms (10);

   busy_test();
   data = 'C';//0x50;   //Display "P"
   send_data();
 
   delay_ms (10);
   busy_test();
   data = 'R';//0x50;   //Display "P"
   send_data();
   delay_ms (10);
   busy_test();
   data = 'E';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'A';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'T';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'I';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'N';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'I';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'N';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'E';//0x50;   //Display "P"
   send_data();
   
    delay_ms (10);
   busy_test();
   data = ' ';//0x50;   //Display "P"
   send_data();
   
   
   delay_ms (10);
   busy_test();
   data = 'A';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'N';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'A';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'L';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'Y';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'S';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'E';//0x50;   //Display "P"
   send_data();
   
   delay_ms (10);
   busy_test();
   data = 'R';//0x50;   //Display "P"
   send_data();
strt:
   display();
   
//  sec++;
// display_2();
 goto strt;

 // if (getc()== 'A')
//{
//first==getc();
  delay_ms (100);
 //goto strt;
   //while (1)
  // {

  // } 
}
void init()
{
   set_tris_c(0x00);
   set_tris_e(0x00);   //Set Port C As Output
   set_tris_d(0x00);   //Set Port D As Output
   output_e(0x00);   //Clear Port C
   output_c(0x00);
   output_d(0x00);   //Clear Port D
   delay_ms (500);   //Power-On Delay
         //Busy Flag Valid Here

   //busy_test();   //Check Busy Flag
  // command = 0x38;   //8-Bits, 2-Lines, 5x7 Dots
  // send_command();   //Send Command To LCD

   delay_ms (10);

   //busy_test();   //Check Busy Flag
   command = 0x38;   //8-Bits, 2-Lines, 5x7 Dots
   send_command();   //Send Command To LCD

  // delay_us (500);
  //busy_test();   //Check Busy Flag
   command = 0x38;   //8-Bits, 2-Lines, 5x7 Dots
   send_command();   //Send Command To LCD

   delay_ms (100);

   busy_test();   //Check Busy Flag
   command = 0x06;   //8-Bits, 2-Lines, 5x7 Dots
   send_command();   //Send Command To LCD

   delay_ms (1);

   busy_test();   //Check BF
   command = 0x0c;   //Display Off, Cursor Off, No-Blink
   send_command();   //Send

   delay_ms (1);

   busy_test();
   command = 0x01;   //Clear Display
   send_command();

   delay_ms (5);

   busy_test();
   command = 0x02;   //Increment Cursor Position, No-Shift
   send_command();

 //  delay_ms (1);

//   busy_test();
  // command = 0x0F;   //Display On, Cursor On, Blink
 //  send_command();

 

   delay_ms (10);
}


void display()
{

  setup_adc(ADC_CLOCK_INTERNAL);
   setup_adc_ports(ALL_ANALOG); 
   set_adc_channel(0);
   
   for(i=1;i<6;i++)
   {
   value=read_adc();
   
   delay_us(10); 
   }
 // Dcv = value* (5000/1024.0);
   dval=value;
   value = value * 49;
 // lcd_gotoxy(1,2);
 for(i=1;i<=7;i++)
 {
   voltage[i]=value%10;
   value=value/10;
  }
 
 // setup_adc(ADC_CLOCK_INTERNAL);
 //  setup_adc_ports(ALL_ANALOG); 
   set_adc_channel(1);
   
   for(i=1;i<6;i++)
   {
   value=read_adc();
   delay_us(10); 
   }
 // Dcv = value* (5000/1024.0);
   dval2=value;
   value = value * 49;
 // lcd_gotoxy(1,2);
 for(i=1;i<=7;i++)
 {
   current[i]=value%10;
   value=value/10;
  }
 
   value = sec;
 //  value = value ;
 // lcd_gotoxy(1,2);
 for(i=1;i<=7;i++)
 {
   time[i]=value%10;
   value=value/10;
  }
 
 
   busy_test();
   command = 0xc0;   //Set DDRAM Address To 0x00
   send_command();
     //Adval = (ADRESH * 256) + ADRESL;

   delay_ms(100);
  // putdat_lcd(j);
 // sprintf(line,"%02LX",j);
   
   
  // busy_test();
  // command = 0xd9;   //Set DDRAM Address To 0x00
  // send_command();

   delay_ms (10);

   busy_test();
   data = 'V';//0x50;   //Display "P"
   send_data();
   busy_test();
   data = (':');//0x50;   //Display "A"
   send_data();
  //  busy_test();
  // data = (voltage[7]+0x30);//0x50;   //Display "S"
  // send_data();
    busy_test();
   data = (voltage[6]+0x30);//0x50;   //Display "S"
   send_data();
    busy_test();
   data = (voltage[5]+0x30);//0x50;   //Display "S"
   send_data();
   busy_test();
   data = (voltage[4]+0x30);//0x50;   //Display "S"
   send_data();
   busy_test();
   data = (voltage[3]+0x30);//0x50;   //Display "S"
   send_data();
  // busy_test();
 //  data = ('.');//0x4C;   //Display "S"
 //  send_data();
   busy_test();
   data = (voltage[2]+0x30);//0x50;   //Display "S"
   send_data();
    busy_test();
   data = ('.');//0x4C;   //Display "S"
   send_data();
   busy_test();
   data = (voltage[1]+0x30);//0x50;   //Display "S"
   send_data();
   delay_ms (10);
} 
void busy_test()
{
   
      set_tris_d(0xFF);      //Set Port D As Input
      //RS = 0;            //Command
      //RW = 1;            //Read Busy Flag
      output_e(0x02);
      delay_ms(1);
     // delay_cycles (2);   //Control Setup Time
      //E  = 1;            //E-Line High
      output_e(0x06);
      delay_ms(1);
     // delay_cycles (6);   //Wait Data Return
        // delay_us(
      //if (BF == 0)
      while ( input(PIN_D7));
         set_tris_d(0x00);   //Set Port D Back To Output
         //E  = 0;         //E-Line Low
         output_e(0x02);
       

      //E  = 0;            //E-Line Low
     // output_e(0x02);
       //End while loop
}      //End Function


void send_command()
{ 
   output_d(command); 
   //RS = 0;            //Command
   //RW = 0;            //Write Instruction
   output_e(0x00);
   delay_ms(1);
//   delay_cycles (2);   //Control Setup Time
   //E  = 1;            //E-Line High
   output_e(0x04);
    delay_ms(1);
   //delay_cycles (3); 
  // PORTD = command;   //Put Command To Port D
    delay_ms(1);
    // delay_cycles (3);   //Data Setup Time
   //E  = 0;            //E-Line Low
   output_e(0x00);
   delay_ms(1);
   //delay_cycles (1);   //Control & Data Hold Time
}

void putdat_lcd(int data)
{
  lcd_port(data);
  output_high(RS);
  output_high(E);
  delay_ms(1);
  output_low(E);
  delay_ms(6);
  output_low(RS);
}

 
 
void send_data()
{
   output_d(data);
  //RS = 1;            //Data
   //RW = 0;            //Write data
   output_e(0x01);
   delay_ms(1);
   //delay_cycles (2);   //Control Setup Time
   //E  = 1;            //E-Line High
   output_e(0x05);
   delay_ms(1);
   //delay_cycles (3);
  // PORTD = data;      //Put Data To Port D

  // delay_cycles (3);   //Data Setup Time
   //E  = 0;            //E-Line Low
   output_e(0x01);
   delay_ms(1);
   //delay_cycles (1);   //Control & Data Hold Time
}
temtronic



Joined: 01 Jul 2010
Posts: 9230
Location: Greensville,Ontario

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PostPosted: Mon Mar 17, 2014 7:19 am     Reply with quote
comments.
1) nobody here can fix PROTEUS problems...so build real hardware.You should use a current PIC, the 877 is almost 20 years old, there are cheaper, better PICs to use.

2) start SMALL ! About 95% of your program is commented out or NOT required so get rid of everything that is not necessary,really start over.

3) I can't follow what you've done..it's way to 'complicated' a 'mixture' of code segments ,none will really work as a 'program'.

Get a PIC and cut the simple '1Hz flashing LED' program. CONFIRM that it works in real hardware.
Do NOT proceed until it does work !

THEN

cut code for the 'test LCD Hello World' program. CONFIRM that it does work in real hardware. I suggest using the 'flex_LCD driver' as it is KNOWN to work very well.

THEN

proceed with your school project.


hth
jay
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