Re: [Sdcc-user] PIC18F4550 HEX file created don't work.

[<gga...@co...>]

I normally use the LATx register to set port output bits as in

                 LATA = 0xff.

George

 -------------- Original message ----------------------
From: "Kustaa Nyholm" <Kus...@pl...>
> Hi,
> 
> I did something similar last week, no problems, what compile line you
> use?
> 
> Attached please find my sample code that blinks a LED and prints
> "hello, world" through
> UART port. Also attached is the Makefile, which should show you a
> command line/options
> that I used to compile this and make it work.
> 
> 
> 
> br Kusti
> 
> 
> >>> ale...@gm... 20.1.2009 16:06 >>>
> Hi!
> 
> I'm trying to use SDCC compiler to build firmware for Microchip
> micro-controllers. I'm currently using PIC 18F4550.
> I'm using piklab IDE to compile C source code and to program the chip
> using ICD2 hardware.
> I made a simply (and sample code) to test the SDCC compiler
> integration
> in Piklab IDE software, I'm working in Linux environment (Ubuntu);
> although the hex file is created resulting from compilation, when I
> program the chip nothing happens - the PIC 18F4550 does nothing!
> 
> The C code is:
> 
> /******************************************************************/
> /*
> */
> /* C code for PIC18F4550 that configures PORTA pins as outputs and
> */
> /* puts high level on them
> */
> /******************************************************************/
> 
> #include <pic18f4550.h>
> #include <signal.h>
> #include <pic18fregs.h>
> #include <stdio.h>
> #include "PIC18test.h"
> 
> code char at __CONFIG1H CONFIG1H = 0x01;
> // _OSC_XT_1H & _FCMEN_OFF_1H & _IESO_OFF_1H;
> 
> void main(void) 
> {
> 	// make all pins of port A as outputs
> 	TRISA = 0;
> 	// Configure LCD_PORT if in use
> 	TRISB = 0;
> 	// Configure LCD control pins
> 	TRISD = 0xF7;
> 	
> 	// Put all PORTA outputs to high
> 	PORTA = 0xff;
> 
> }
> 
> 
> There's anything wrong in compilation? Can anyone help me?
>