[SOLVED] Help with Button in Mikroc

[spider7]

Hello Everybody,

I hope someone will help me in resolving my problem. I am new to Microcontroller and Mikroc. My project details in short is given as below.

1. I am using PIC16F886 for this project.
2. I have setup 2 ADC on PORT A0 and A1 for input.
3. I have setup a Button(Push to on Switch) on PORT A1.
4. I have setup LCD 2 x 16 on PORT C.
5. Finally I am using 8Mhz internal osc.

Now I read 2 values from A0 and A1 in my while loop. Now what exactly I want is when I press switch this loop should stop working and again when I press the same for second time the loop should start working.

below is the code :

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Code C - [expand]
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while(1)
          {
          unsigned int v,vp,ip,i;
          char *volt = "00.00";
          char *current = "0.000";
          char *res = "0.000";
 
          v = ADC_Read(0);
          i = ADC_Read(1);
          i = ((i*4.89)/0.33); //0.47;
          v = ((v*4.89)/27)*254;
 
          if(v!=vp || i!=ip || e!=r )
          Lcd_Cmd(_LCD_CLEAR);
          vp = v;
          ip = i;
 
          volt[0] = look(v/10000);
          volt[1] = look((v/1000)%10);
          volt[3] = look((v/100)%10);
          volt[4] = look((v/10)%10);
          Lcd_Out(1,1,"Volt=");
          Lcd_Out(1,10,volt);
          Lcd_Out(1,18,"V");
 
          current[0] = look((i/1000)%10);
          current[2] = look((i/100)%10);
          current[3] = look((i/10)%10);
          current[4] = look(i %10);
          Lcd_Out(2,1,"Curr=");
          Lcd_Out(2,10,current);
          Lcd_Out(2,18,"A");
 
}

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please help me in using switch to start and stop this loop.

Thankyou all in advance.

 

[jayanth.devarayanadurga]

Is there 8 MHz internal OSC available? Your variables should be declared at the beginning of the main() function or as global variables.
If your button is PORTA.F4 then it should be configured as digital input pin. You have to configure ANSELx and or ADCONx registers.

You cannot use A1 or any pin for both adc and also for button.

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Code C - [expand]
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unsigned char readanddisplayadc =  0;
 
while(1){
    //Button Code
 
    if(PORTA.F4){
        Delay_ms(50);
        if(PORTA.F4){
            readanddisplayadc = 1;
        }
    }
    
    if(readanddisplayadc){
 
        //Your code inside while(1) loop here
        readanddisplayadc = 0;
 
    }
 
}

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[spider7]

Thank you for quick reply. Can you give example for digital input and analog input config please.

 

[jayanth.devarayanadurga]

Zip and post your mikroC project files and Circuit. I will fix it and post.

mikroC Code + Proteus file attached.

 

[spider7]

Hello Jayanth,

You posted exactly what I am using and hence I didn't posted my project. The only change in mine is I am using voltage divider and current sense resistor. Rest all remains same.

Thank you for the post.