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Need help for an EEPROM code

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ADGAN

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Hi! My project is a Energy meter. I'm getting pulses from an energy measurement IC. I want to save the total no of pulses on the EEPROM. I know how to read & write from the EEPROM using Mikroc PRO. I'm using the timer1 to count the pulses. I'm bit confused in which order to do it. This is what I thought.

First TMR1L = 0 , TMR1H = 0

while(1){
Then amount of pulses that are saved in the EEPROM and timer1 are moved to a variable called 'Pulses'.
Write pulses variable to the EEPROM
}
But very large values are displayed on the LCD when I do this. This is the code:

Code: 
#define Highest(param) ((char *)&param)[3]
#define Higher(param) ((char *)&param)[2]
#define Hi(param) ((char *)&param)[1]
#define Lo(param) ((char *)&param)[0]

unsigned short lowByte, highByte, higherByte, highestByte, p_address;
unsigned long pulses;
unsigned short lowByte, highByte, higherByte, highestByte, p_address;
unsigned char txt[14],txt6[14];
unsigned long count;
unsigned long pulses;
unsigned long total_consumption;
unsigned long current_consumption;
unsigned long monthly_consumption;
double Meter_reading;
double Meter_Constant = 0.001;

void EEPROMWriteInt(unsigned short p_address, unsigned long int p_value) {
        lowByte = Lo(p_value); //((p_value >> 0) & 0xFF);
        highByte = Hi(p_value); //((p_value >> 8) & 0xFF);
        higherByte = Higher(p_value);
        highestByte = Highest(p_value);

        EEPROM_write(p_address, lowByte);
        delay_ms(20);
        EEPROM_write(p_address + 1, highByte);
        delay_ms(20);
        EEPROM_write(p_address + 2, higherByte);
        delay_ms(20);
        EEPROM_write(p_address + 3, highestByte);
        delay_ms(20);

        lowByte = 0x00;
        highByte = 0x00;
        higherByte = 0x00;
        highestByte = 0x00;

}

unsigned long int EEPROMReadInt(unsigned short p_address)
        {
        Lo(pulses) = EEPROM_read(p_address);
        delay_ms(20);
        Hi(pulses) = EEPROM_read(p_address + 1);
        delay_ms(20);
        Higher(pulses) = EEPROM_read(p_address + 2);
        delay_ms(20);
        Highest(pulses) = EEPROM_read(p_address + 3);
        delay_ms(20);

        return pulses;

}

void main()
{
     ANSEL = 0;
     ANSELH = 0;
     TRISA = 0;
     PORTA.RA0 = 1;
     C1ON_bit = 0;                      // Disable comparators
     C2ON_bit = 0;
     TRISB = 0;
     PORTB = 0;
     PORTC = 0;
     TRISC = 0x99;
     INTCON = 0xC0;

     PIE1.TMR1IE = 1;
     PIR1.TMR1IF = 0;

     T1CON = 0x03;
     TMR1L = 0;
     TMR1H = 0;

     Lcd_Init();
     Delay_ms(100);                  // Delay 100ms
     Lcd_Cmd(_LCD_CURSOR_OFF);
     Lcd_Cmd(_LCD_CLEAR);
    pulses = (count*65536)+ (TMR1H<<8 | TMR1L);
       pulses += EEPROMReadInt(0);

      while(1){


       pulses = (count*65536)+ (TMR1H<<8 | TMR1L);
       
       Delay_ms(20);
       EEPROMWriteInt(0x00, pulses);
       

      LongToStr(pulses,txt);
     Lcd_out(1,9,txt);

    
          }
   }
 
Last edited:

Where on the code above you had defined p_address value ?


+++
 

sorry about that made the adjustment.

- - - Updated - - -

I made a change to the code ( before the while loop) pls take a look at it.
 

Now, cont variable were not previously defined, and may exhibit anything.



+++
 

Sorry my bad I made the adjustments, really sorry about that.
 

Instead you debug program with all desired features, I could suggest you to perform a step-by-step experiments on each functionality, e.g LCD, Input, type casting, etc...


+++
 

Done but will it make difference to EEPROM

- - - Updated - - -

Its just showing negative values now.
 

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