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pic16f877a with KS0108 GLCD DISPLAY PROBLEM

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sresam89

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dear all,
am having a tough time interfacing pic16f877a with Glcd 128x64 running in KS0108. am getting all the data being send displayed the problem is only half the display is always displayed i cant make the full display to show any content given am attaching the screenshot and the program.
am using ccs compiler and the example programs and default drivers.
Code: 
#include <HDM64GS12.c>
#include <graphics.c>
#include <math.h>

#byte trisa=0x85
#byte trisb=0x86
#byte trisc=0x87
#byte trisd=0x88
#byte trise=0x89
#byte porta=0x05
#byte portb=0x06
#byte portc=0x07
#byte portd=0x08

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() {
   int1  warn = FALSE;
   int8  adc = 0, adc_old = 0;
   char  voltText[] = "VoLtS\0", warning[] = "Warning";
   float theta = 0;

   setup_adc_ports(RA0_ANALOG);
   setup_adc(ADC_CLOCK_INTERNAL);
   set_adc_channel(0);
   
   TRISA = 0x00;
   TRISB = 0x00; 
   TRISC = 0x00;
   TRISD = 0x00;
   TRISE = 0x00;
   porta=0x00;
while(1)
{
   glcd_init(ON);                               // Must initialize the LCD
   //glcd_rect(1, 1, 126, 126, YES, ON);            // Outline the bar
   glcd_text57(50, 100, voltText, 1, ON);        // Display "Volts"
   glcd_circle(30,47, 10, NO, ON);             // Draw the clock circle
  porta=~porta;
  delay_ms(300);
 //  for(;;) {
      adc = read_adc();                         // Read a value from the ADC
      displayVoltage(adc);                      // Display the reading
      adc = (adc > 249) ? 249 : adc;            // Keep the value 249 or less

      if(adc != adc_old) {
         glcd_rect(adc/2+1, 6, adc_old/2+1, 14, YES, OFF);  // Clears the old bar
         glcd_rect(1, 6, adc/2+1, 14, YES, ON);             // Draws a new bar
         adc_old = adc;                                     // Set old value to new

         if(adc > 200 && !warn) {                  // Check if over 4 volts
            glcd_rect(45, 38, 124, 55, YES, ON);   // Draw a filled black rectangle
            glcd_text57(47, 40, warning, 2, OFF);  // Write "Warning" on the LCD
            warn = TRUE; }
         else if(adc <=200 && warn) {
            glcd_rect(45, 37, 125, 55, YES, OFF);  // Draw a filled white rectangle
            warn = FALSE; }
      }

      // The following 3 lines make the clock hand spin around
      glcd_line(30, 47, 30+(int)(8*sin(theta)+.5), 47-(int)(8*cos(theta)+.5), OFF);
      theta = (theta > 5.9) ? 0 : (theta += .3);
      glcd_line(30, 47, 30+(int)(8*sin(theta)+.5), 47-(int)(8*cos(theta)+.5), ON);

      #ifdef FAST_GLCD
      glcd_update();
      #else
      delay_ms(100);    // Reduces flicker by allowing pixels to be on
                        // much longer than off
      #endif 
   }
}
 

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none there mods at-least you could help me please refer me to someone
 

sresam89 said:
dear all,
am having a tough time interfacing pic16f877a with Glcd 128x64 running in KS0108. am getting all the data being send displayed the problem is only half the display is always displayed i cant make the full display to show any content given am attaching the screenshot and the program.
am using ccs compiler and the example programs and default drivers.
Code: 
#include <HDM64GS12.c>
#include <graphics.c>
#include <math.h>

#byte trisa=0x85
#byte trisb=0x86
#byte trisc=0x87
#byte trisd=0x88
#byte trise=0x89
#byte porta=0x05
#byte portb=0x06
#byte portc=0x07
#byte portd=0x08

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() {
   int1  warn = FALSE;
   int8  adc = 0, adc_old = 0;
   char  voltText[] = "VoLtS\0", warning[] = "Warning";
   float theta = 0;

   setup_adc_ports(RA0_ANALOG);
   setup_adc(ADC_CLOCK_INTERNAL);
   set_adc_channel(0);
   
   TRISA = 0x00;
   TRISB = 0x00; 
   TRISC = 0x00;
   TRISD = 0x00;
   TRISE = 0x00;
   porta=0x00;
while(1)
{
   glcd_init(ON);                               // Must initialize the LCD
   //glcd_rect(1, 1, 126, 126, YES, ON);            // Outline the bar
   glcd_text57(50, 100, voltText, 1, ON);        // Display "Volts"
   glcd_circle(30,47, 10, NO, ON);             // Draw the clock circle
  porta=~porta;
  delay_ms(300);
 //  for(;;) {
      adc = read_adc();                         // Read a value from the ADC
      displayVoltage(adc);                      // Display the reading
      adc = (adc > 249) ? 249 : adc;            // Keep the value 249 or less

      if(adc != adc_old) {
         glcd_rect(adc/2+1, 6, adc_old/2+1, 14, YES, OFF);  // Clears the old bar
         glcd_rect(1, 6, adc/2+1, 14, YES, ON);             // Draws a new bar
         adc_old = adc;                                     // Set old value to new

         if(adc > 200 && !warn) {                  // Check if over 4 volts
            glcd_rect(45, 38, 124, 55, YES, ON);   // Draw a filled black rectangle
            glcd_text57(47, 40, warning, 2, OFF);  // Write "Warning" on the LCD
            warn = TRUE; }
         else if(adc <=200 && warn) {
            glcd_rect(45, 37, 125, 55, YES, OFF);  // Draw a filled white rectangle
            warn = FALSE; }
      }

      // The following 3 lines make the clock hand spin around
      glcd_line(30, 47, 30+(int)(8*sin(theta)+.5), 47-(int)(8*cos(theta)+.5), OFF);
      theta = (theta > 5.9) ? 0 : (theta += .3);
      glcd_line(30, 47, 30+(int)(8*sin(theta)+.5), 47-(int)(8*cos(theta)+.5), ON);

      #ifdef FAST_GLCD
      glcd_update();
      #else
      delay_ms(100);    // Reduces flicker by allowing pixels to be on
                        // much longer than off
      #endif 
   }
}
Click to expand...
Hope pins cs1 and cs2 were connected correctly, ensure it by checking continuity. Then write a simple fillscreen program to test your glcd than this lengthy codes. You can also try Proteus before burning the actual firmware to pic.



Good luck. :)
 

anandpv2009 said:
Hope pins cs1 and cs2 were connected correctly, ensure it by checking continuity. Then write a simple fillscreen program to test your glcd than this lengthy codes. You can also try Proteus before burning the actual firmware to pic.



Good luck. :)
Click to expand...

thanks for the suggestion anand. i did glcd_fillscreen() only. just posted the whole code. double checked the continuity its fine. anything thing else that am missing..?
?
 

Simulate your program using Proteus, post the result.



Good luck :)
 

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