DIGITAL INPUT OF PIC16F628A

[mymbong]

what's wrong with this code? i test it to proteus 8 its perfectly working but in the real hardware not working

here is my code compile in mikroC pro





testing in proteus



bad output in real hardware



please any help will be appreciated

[Aleksandar.Mitrovic]

Hi,

Can you please attach your project in small zipped form how could I will be able to exam it?

Please note that Proteus is not fully supported software by mikroElektronika.

Best regards,
Aleksandar

[mymbong]

thanks Aleksandar.Mitrovic for your quick response of my post

actually the project is interfacing PIC to VB.net

here is my code

PIC16F628A.zip

(19.64 KiB) Downloaded 160 times

im using PICPGM programmer software and JDM programmer

here is the screenshot of successfully program in PICPGM software

programm finish.jpg (347.44 KiB) Viewed 4493 times

here is the output when i press the button, using MikroC UART Terminal

MikroC UART Terminal.jpg (340.08 KiB) Viewed 4493 times

please i really need help

[mymbong]

any help please...

[Aleksandar.Mitrovic]

Hi,

I apologize for long waiting on answer.

I tested this code on EasyPIC v7 development board with internal oscillator 4MHz and its working:

Code: Select all

void main() {
   CMCON = 0x07;
   PORTA = 0x00;
   TRISA = 0x0F;

   UART1_Init(9600);
   Delay_ms(100);
   UART1_Write(13);
   UART1_Write(12);
while (1){
   //PORTA
  if (RA0_bit == 1){
   UART1_Write_Text("RA0");
   Delay_ms(1000);
  }
  if (RA1_bit == 1){
   UART1_Write_Text("RA1");
   Delay_ms(1000);
  }
  if (RA2_bit == 1){
   UART1_Write_Text("RA2");
   Delay_ms(1000);
  }
  if (RA3_bit == 1){
   UART1_Write_Text("RA3");
   Delay_ms(1000);
  }
  if (RA4_bit == 1){
   UART1_Write_Text("RA4");
   Delay_ms(1000);
  }
 }
}

Note that if you are using this board set J17 in VCC and all pins which you use in PULL DOWN position.

Best regards,
Aleksandar

[Aleksandar.Mitrovic]

Hi,

I apologize for long waiting on answer.

I tested this code on EasyPIC v7 development board with internal oscillator 4MHz and its working:

Code: Select all

void main() {
   CMCON = 0x07;
   PORTA = 0x00;
   TRISA = 0x0F;

   UART1_Init(9600);
   Delay_ms(100);
   UART1_Write(13);
   UART1_Write(12);
while (1){
   //PORTA
  if (RA0_bit == 1){
   UART1_Write_Text("RA0");
   Delay_ms(1000);
  }
  if (RA1_bit == 1){
   UART1_Write_Text("RA1");
   Delay_ms(1000);
  }
  if (RA2_bit == 1){
   UART1_Write_Text("RA2");
   Delay_ms(1000);
  }
  if (RA3_bit == 1){
   UART1_Write_Text("RA3");
   Delay_ms(1000);
  }
  if (RA4_bit == 1){
   UART1_Write_Text("RA4");
   Delay_ms(1000);
  }
 }
}

Note that if you are using this board set J17 in VCC and all pins which you use in PULL DOWN position.

Best regards,
Aleksandar

[mymbong]

thank you so much Aleksandar.Mitrovic your very helpful answer
now its working...

[Aleksandar.Mitrovic]

Hi,

Your welcome.
I'm glad that I was able to help you.

Regards,
Aleksandar