I normally use the LATx register to set port output bits as in
LATA = 0xff.
George
-------------- Original message ----------------------
From: "Kustaa Nyholm" <[email protected]>
> 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
>
>
> >>> [email protected] 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?
>
--- Begin Message ---
main.c
Description: Binary data
Makefile
Description: Binary data
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