Analog and digital pins in PIC16f877a

[oday_albadarneh]

Hi all,
I'm using MiKroC to program a PIC16f877a, and i want to configure pins A0,A1 as analog pins wile A2-A5 as digital input. i use this code but it didn't work

  ADRESL = 0x03;
  ADRESH = 0x00;
  TRISA  = 0xFF;

had i forget anything to put in the code ?! any modifications or suggestions ?!!
PLZ Help me ASAP, with great thanks for all

 

[anboli]

you need to initiallize the ADCON1 register of the bit PCFG3 - PCFG0; you could give the value 0101 for PCFG3 - PCFG0.

you cant declare A2 to A5 as digital, in between A3 will act as a VRef..

see the 16f877 datasheet of 130th page.