AVR-Chat

Well, after spending hours trying to get something working I have had to
come crawling back.

The piece of code I have been trying to get to work is:

 

//----------------------------------------------------------------------

// Titel     : Beispiel LED an für myAVR-Board

//----------------------------------------------------------------------

// Funktion  : Schaltet alle 3 LEDs an

// Schaltung : PortB 0-2 an LEDs

//----------------------------------------------------------------------

// Prozessor : ATmega8/48/88/168

// Takt                  : 3.6864 MHz

// Sprache   : C

// Datum     : 02.12.2005

// Version   : 1.3

// Autor     : Dipl. Ing. Päd. Alexander Huwaldt

//----------------------------------------------------------------------

#define                F_CPU 3686400 // Taktfrequenz des myAVR-Boards

#include               <avr\io.h>                           // AVR Register
und Konstantendefinitionen

//----------------------------------------------------------------------

main ()

{

                DDRB=0xFF;                                       //PortB auf
Ausgang konfigurieren

                do

                {

                                PORTB=0xFF;     // PortB High, LEDs on

                } while (true);                    // Mainloop

}

//----------------------------------------------------------------------

 

I have been using avr studio, baisically I started a new project, and pasted
that code in and built it. After having to make some changes, due to the
program saying that “true not initialized” I changed the code from:

 

                do

                {

                                PORTB=0xFF;     // PortB High, LEDs on

                } while (true);                    // Mainloop

 

 

 

To

 

 

 

                Int x;

X = 1;

While (x == 1)

                {

                                PORTB=0xFF;     // PortB High, LEDs on

                }                              // Mainloop

 

 

 

It built grand then, but when I took the hex file, and used the sp12 program
to program it, it said:

 

H:\Documents and Settings\Paul>sp12 -p -f C:/avr/test.hex

SP12 version 2.0.7 performing init...

Path to _sp12rc and _sp12dev: H:\Program Files\SP12_AVR\

Running in SP12 cable/dongle compatible mode.

Enabling AVR serial reading/programming...

The device code bytes 0,1,2: 0x1e, 0x93, 0x7 were read

from parallel port 0x378 and indicate the following:

You have connected an ATmega8

The device was made by Atmel

 

Writing 0000 (0, B00000000) to the parallel port data bits.

 

 

 

So im lost, nothing happened on the board, so I don’t know if anything has
been programmed.

I have noticed it is very hard to find any decent tutorials aswell.. But I
would like to be able to reliably program the device before wrecking my head
with code wondering why its not working.

 

It’s probably time I got myself a proper development board, but I don’t have
the money and I really just want to get started on these things, this board
has been sitting here for a while!

 

 

Thanks (once again)

Paul.

 



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