Society of Robots - Robot Forum

Software => Software => Topic started by: medo31 on April 12, 2010, 02:27:54 PM

Title: pic16f877
Post by: medo31 on April 12, 2010, 02:27:54 PM

i want help  in a2d  in mikroc

to  program  pic 16f877

program canot define the (ansel) code




void main() {
  ANSEL  = 0x04;              // Configure AN2 pin as analog- errror  here??????
  TRISA  = 0xFF;              // PORTA is input
  ANSELH = 0;                 // Configure other AN pins as digital I/O
  TRISC  = 0x3F;              // Pins RC7, RC6 are outputs
  TRISB  = 0;                 // PORTB is output

  do {
    temp_res = ADC_Read(2);   // Get 10-bit results of AD conversion
    PORTB = temp_res;         // Send lower 8 bits to PORTB
    PORTC = temp_res >> 2;    // Send 2 most significant bits to RC7, RC6
  } while(1);
}

Title: Re: pic16f877
Post by: waltr on April 12, 2010, 02:59:52 PM

Try looking at the Mikrco header file for the PIC16F877. My first guess is that it has a different name.

Just re-checked the 16F877 data sheet and that PIC does not have a ANSEL or a ANSELH register, Figure 2-3.
Did you include the correct header file?

The ADCON0 & ADCON1 registers has the analog input selection and ADC setup bits, section 11.0.